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Posted to commits@pekko.apache.org by gi...@apache.org on 2025/01/14 19:37:59 UTC

(pekko) 02/03: Reformat with scalafmt 3.8.4

This is an automated email from the ASF dual-hosted git repository.

github-bot pushed a commit to branch update/scalafmt-core-3.8.4
in repository https://gitbox.apache.org/repos/asf/pekko.git

commit f48453e60a8d11f74acc7a10d3a9da90b8acd4af
Author: scala-steward-asf[bot] <14...@users.noreply.github.com>
AuthorDate: Tue Jan 14 19:37:51 2025 +0000

    Reformat with scalafmt 3.8.4
    
    Executed command: scalafmt --non-interactive
---
 .../actor/ActorConfigurationVerificationSpec.scala |  2 +-
 .../apache/pekko/actor/ActorCreationPerfSpec.scala | 10 ++--
 .../org/apache/pekko/actor/ActorRefSpec.scala      |  6 +-
 .../org/apache/pekko/actor/ActorSystemSpec.scala   | 14 ++---
 .../pekko/actor/ActorWithBoundedStashSpec.scala    |  4 +-
 .../apache/pekko/actor/ActorWithStashSpec.scala    |  8 +--
 .../org/apache/pekko/actor/ConsistencySpec.scala   |  2 +-
 .../org/apache/pekko/actor/DeathWatchSpec.scala    |  6 +-
 .../org/apache/pekko/actor/DeployerSpec.scala      |  4 +-
 .../org/apache/pekko/actor/FSMActorSpec.scala      | 36 +++++------
 .../org/apache/pekko/actor/FSMTimingSpec.scala     | 44 +++++++-------
 .../org/apache/pekko/actor/FSMTransitionSpec.scala | 12 ++--
 .../org/apache/pekko/actor/ForwardActorSpec.scala  |  6 +-
 .../pekko/actor/LocalActorRefProviderSpec.scala    |  4 +-
 .../apache/pekko/actor/ReceiveTimeoutSpec.scala    | 20 +++----
 .../apache/pekko/actor/RestartStrategySpec.scala   | 42 ++++++-------
 .../org/apache/pekko/actor/SchedulerSpec.scala     | 22 +++----
 .../pekko/actor/SupervisorHierarchySpec.scala      | 12 ++--
 .../apache/pekko/actor/SupervisorMiscSpec.scala    |  2 +-
 .../org/apache/pekko/actor/SupervisorSpec.scala    | 18 +++---
 .../apache/pekko/actor/SupervisorTreeSpec.scala    |  6 +-
 .../org/apache/pekko/actor/Ticket669Spec.scala     |  2 +-
 .../org/apache/pekko/actor/TypedActorSpec.scala    | 32 +++++-----
 .../pekko/actor/dispatch/ActorModelSpec.scala      |  6 +-
 .../pekko/actor/dispatch/DispatcherActorSpec.scala |  2 +-
 .../org/apache/pekko/dataflow/Future2Actor.scala   |  6 +-
 .../apache/pekko/dispatch/MailboxConfigSpec.scala  | 14 ++---
 .../pekko/dispatch/PriorityDispatcherSpec.scala    |  4 +-
 .../dispatch/StablePriorityDispatcherSpec.scala    |  6 +-
 .../apache/pekko/event/LoggingReceiveSpec.scala    | 12 ++--
 .../org/apache/pekko/io/TcpIntegrationSpec.scala   |  2 +-
 .../scala/org/apache/pekko/pattern/AskSpec.scala   | 66 ++++++++++----------
 .../pattern/BackoffOnRestartSupervisorSpec.scala   | 26 ++++----
 .../apache/pekko/pattern/CircuitBreakerSpec.scala  |  2 +-
 .../org/apache/pekko/pattern/PatternSpec.scala     | 14 ++---
 .../scala/org/apache/pekko/pattern/RetrySpec.scala | 36 +++++------
 .../pekko/routing/ConfiguredLocalRoutingSpec.scala | 12 ++--
 .../org/apache/pekko/routing/RandomSpec.scala      | 10 ++--
 .../org/apache/pekko/routing/ResizerSpec.scala     | 14 ++---
 .../org/apache/pekko/routing/RoundRobinSpec.scala  | 12 ++--
 .../org/apache/pekko/routing/RoutingSpec.scala     |  2 +-
 .../apache/pekko/serialization/SerializeSpec.scala |  2 +-
 .../scala/org/apache/pekko/util/DurationSpec.scala | 12 ++--
 .../pekko/actor/typed/delivery/TestConsumer.scala  |  3 +-
 .../org/apache/pekko/io/DirectByteBufferPool.scala |  4 +-
 .../apache/pekko/cluster/metrics/Provision.scala   |  2 +-
 .../metrics/ClusterMetricsExtensionSpec.scala      |  4 +-
 .../metrics/ClusterMetricsRoutingSpec.scala        |  2 +-
 .../cluster/metrics/sample/StatsSampleSpec.scala   |  6 +-
 .../metrics/ClusterMetricsExtensionSpec.scala      |  4 +-
 .../metrics/ClusterMetricsSettingsSpec.scala       |  8 +--
 .../cluster/metrics/MetricsCollectorSpec.scala     |  2 +-
 .../apache/pekko/cluster/metrics/TestUtil.scala    |  2 +-
 .../RandomizedBrainResolverIntegrationSpec.scala   |  4 +-
 .../cluster/sharding/ClusterShardingSpec.scala     | 48 +++++++--------
 .../pekko/cluster/client/ClusterClientSpec.scala   | 12 ++--
 .../pubsub/DistributedPubSubMediatorSpec.scala     | 30 +++++-----
 .../pubsub/DistributedPubSubRestartSpec.scala      |  4 +-
 .../ClusterSingletonManagerChaosSpec.scala         |  4 +-
 .../singleton/ClusterSingletonManagerSpec.scala    | 16 ++---
 .../org/apache/pekko/cluster/ClusterEvent.scala    |  6 +-
 .../scala/org/apache/pekko/cluster/Member.scala    |  3 +-
 .../pekko/cluster/sbr/SplitBrainResolver.scala     |  3 +-
 .../pekko/cluster/ClusterDeathWatchSpec.scala      |  8 +--
 .../org/apache/pekko/cluster/ConvergenceSpec.scala |  2 +-
 .../pekko/cluster/InitialHeartbeatSpec.scala       |  6 +-
 .../LeaderDowningNodeThatIsUnreachableSpec.scala   |  2 +-
 .../apache/pekko/cluster/LeaderElectionSpec.scala  |  4 +-
 .../scala/org/apache/pekko/cluster/MBeanSpec.scala |  6 +-
 .../apache/pekko/cluster/MemberWeaklyUpSpec.scala  |  6 +-
 .../pekko/cluster/RestartFirstSeedNodeSpec.scala   |  4 +-
 .../org/apache/pekko/cluster/SplitBrainSpec.scala  |  2 +-
 .../org/apache/pekko/cluster/StressSpec.scala      |  2 +-
 .../cluster/UnreachableNodeJoinsAgainSpec.scala    | 12 ++--
 .../cluster/routing/ClusterRoundRobinSpec.scala    |  2 +-
 .../pekko/cluster/routing/UseRoleIgnoredSpec.scala |  2 +-
 .../apache/pekko/cluster/ClusterConfigSpec.scala   | 24 ++++----
 docs/src/test/scala/docs/actor/ActorDocSpec.scala  | 18 +++---
 docs/src/test/scala/docs/actor/FSMDocSpec.scala    |  6 +-
 .../scala/docs/actor/FaultHandlingDocSample.scala  | 10 ++--
 .../scala/docs/actor/FaultHandlingDocSpec.scala    |  6 +-
 .../test/scala/docs/actor/SchedulerDocSpec.scala   |  6 +-
 docs/src/test/scala/docs/duration/Sample.scala     |  2 +-
 .../src/test/scala/docs/future/FutureDocSpec.scala | 56 ++++++++---------
 .../stream/operators/sourceorflow/FoldAsync.scala  |  3 +-
 .../test/scala/docs/testkit/TestKitUsageSpec.scala | 10 ++--
 .../test/scala/docs/testkit/TestkitDocSpec.scala   | 14 ++---
 .../pekko/remote/testconductor/Conductor.scala     |  2 +-
 .../typed/javadsl/CommandHandlerWithReply.scala    |  3 +-
 .../AtLeastOnceDeliveryFailureSpec.scala           |  2 +-
 .../SnapshotFailureRobustnessSpec.scala            |  2 +-
 .../pekko/persistence/fsm/PersistentFSMSpec.scala  | 36 +++++------
 .../apache/pekko/remote/NewRemoteActorSpec.scala   |  2 +-
 .../apache/pekko/remote/RemoteDeliverySpec.scala   |  2 +-
 .../remote/RemoteDeploymentDeathWatchSpec.scala    |  2 +-
 .../pekko/remote/RemoteNodeDeathWatchSpec.scala    | 70 +++++++++++-----------
 .../artery/RemoteRestartedQuarantinedSpec.scala    |  2 +-
 .../RemoteNodeShutdownAndComesBackSpec.scala       |  2 +-
 .../remote/routing/RemoteRoundRobinSpec.scala      |  6 +-
 .../remote/testconductor/TestConductorSpec.scala   | 10 ++--
 .../pekko/remote/testconductor/BarrierSpec.scala   | 46 +++++++-------
 .../org/apache/pekko/remote/RemoteConfigSpec.scala | 30 +++++-----
 .../pekko/remote/artery/RemoteWatcherSpec.scala    | 68 ++++++++++-----------
 .../pekko/remote/classic/RemoteInitErrorSpec.scala |  2 +-
 .../pekko/remote/classic/RemoteWatcherSpec.scala   | 68 ++++++++++-----------
 .../apache/pekko/event/slf4j/Slf4jLoggerSpec.scala | 28 ++++-----
 .../pekko/stream/scaladsl/GraphZipLatestSpec.scala |  6 +-
 .../stream/scaladsl/GraphZipLatestWithSpec.scala   |  4 +-
 .../stream/scaladsl/SinkForeachAsyncSpec.scala     |  6 +-
 .../pekko/stream/MapAsyncPartitionedSpec.scala     | 36 +++++------
 .../org/apache/pekko/stream/javadsl/Flow.scala     |  3 +-
 .../org/apache/pekko/stream/javadsl/Source.scala   |  3 +-
 .../pekko/testkit/CallingThreadDispatcher.scala    |  2 +-
 .../scala/org/apache/pekko/testkit/TestKit.scala   |  2 +-
 .../scala/org/apache/pekko/testkit/PekkoSpec.scala |  2 +-
 .../org/apache/pekko/testkit/PekkoSpecSpec.scala   |  8 +--
 .../apache/pekko/testkit/TestActorRefSpec.scala    |  4 +-
 .../org/apache/pekko/testkit/TestFSMRefSpec.scala  |  6 +-
 .../org/apache/pekko/testkit/TestProbeSpec.scala   | 22 +++----
 119 files changed, 724 insertions(+), 717 deletions(-)

diff --git a/actor-tests/src/test/scala/org/apache/pekko/actor/ActorConfigurationVerificationSpec.scala b/actor-tests/src/test/scala/org/apache/pekko/actor/ActorConfigurationVerificationSpec.scala
index 5e5546324e..ea93a9f890 100644
--- a/actor-tests/src/test/scala/org/apache/pekko/actor/ActorConfigurationVerificationSpec.scala
+++ b/actor-tests/src/test/scala/org/apache/pekko/actor/ActorConfigurationVerificationSpec.scala
@@ -79,7 +79,7 @@ class ActorConfigurationVerificationSpec
     "fail verification with a ConfigurationException if also configured with a ScatterGatherFirstCompletedPool" in {
       intercept[ConfigurationException] {
         system.actorOf(
-          ScatterGatherFirstCompletedPool(nrOfInstances = 2, within = 2 seconds)
+          ScatterGatherFirstCompletedPool(nrOfInstances = 2, within = 2.seconds)
             .withDispatcher("balancing-dispatcher")
             .props(Props[TestActor]()))
       }
diff --git a/actor-tests/src/test/scala/org/apache/pekko/actor/ActorCreationPerfSpec.scala b/actor-tests/src/test/scala/org/apache/pekko/actor/ActorCreationPerfSpec.scala
index 140a821f02..7200d2cc86 100644
--- a/actor-tests/src/test/scala/org/apache/pekko/actor/ActorCreationPerfSpec.scala
+++ b/actor-tests/src/test/scala/org/apache/pekko/actor/ActorCreationPerfSpec.scala
@@ -153,10 +153,10 @@ class ActorCreationPerfSpec
     expectMsg(Alive)
 
     driver ! Create(number, propsCreator)
-    expectMsgPF(15 seconds, s"$scenarioName waiting for Created") { case Created => }
+    expectMsgPF(15.seconds, s"$scenarioName waiting for Created") { case Created => }
 
     driver ! WaitForChildren
-    expectMsgPF(15 seconds, s"$scenarioName waiting for Waited") { case Waited => }
+    expectMsgPF(15.seconds, s"$scenarioName waiting for Waited") { case Waited => }
 
     driver ! PoisonPill
     watch(driver)
@@ -175,10 +175,10 @@ class ActorCreationPerfSpec
     val before = mem.getHeapSnapshot
 
     driver ! Create(number, propsCreator)
-    expectMsgPF(15 seconds, s"$scenarioName waiting for Created") { case Created => }
+    expectMsgPF(15.seconds, s"$scenarioName waiting for Created") { case Created => }
 
     driver ! WaitForChildren
-    expectMsgPF(15 seconds, s"$scenarioName waiting for Waited") { case Waited => }
+    expectMsgPF(15.seconds, s"$scenarioName waiting for Waited") { case Waited => }
 
     gc()
     val after = mem.getHeapSnapshot
@@ -252,5 +252,5 @@ class ActorCreationPerfSpec
 
   override def afterTermination() = shutdownMetrics()
 
-  override def expectedTestDuration = 5 minutes
+  override def expectedTestDuration = 5.minutes
 }
diff --git a/actor-tests/src/test/scala/org/apache/pekko/actor/ActorRefSpec.scala b/actor-tests/src/test/scala/org/apache/pekko/actor/ActorRefSpec.scala
index ebf47bed86..272e05b04b 100644
--- a/actor-tests/src/test/scala/org/apache/pekko/actor/ActorRefSpec.scala
+++ b/actor-tests/src/test/scala/org/apache/pekko/actor/ActorRefSpec.scala
@@ -141,7 +141,7 @@ class ActorRefSpec extends PekkoSpec("""
   def wrap[T](f: Promise[Actor] => T): T = {
     val result = Promise[Actor]()
     val r = f(result)
-    Await.result(result.future, 1 minute)
+    Await.result(result.future, 1.minute)
     r
   }
 
@@ -448,7 +448,7 @@ class ActorRefSpec extends PekkoSpec("""
         val boss = system.actorOf(Props(new Actor {
 
           override val supervisorStrategy =
-            OneForOneStrategy(maxNrOfRetries = 2, withinTimeRange = 1 second)(List(classOf[Throwable]))
+            OneForOneStrategy(maxNrOfRetries = 2, withinTimeRange = 1.second)(List(classOf[Throwable]))
 
           val ref = context.actorOf(Props(new Actor {
             def receive = { case _ => }
@@ -460,7 +460,7 @@ class ActorRefSpec extends PekkoSpec("""
         }))
 
         boss ! "sendKill"
-        Await.ready(latch, 5 seconds)
+        Await.ready(latch, 5.seconds)
       }
     }
 
diff --git a/actor-tests/src/test/scala/org/apache/pekko/actor/ActorSystemSpec.scala b/actor-tests/src/test/scala/org/apache/pekko/actor/ActorSystemSpec.scala
index c8af272fa9..06e0dfbcd4 100644
--- a/actor-tests/src/test/scala/org/apache/pekko/actor/ActorSystemSpec.scala
+++ b/actor-tests/src/test/scala/org/apache/pekko/actor/ActorSystemSpec.scala
@@ -224,7 +224,7 @@ class ActorSystemSpec extends PekkoSpec(ActorSystemSpec.config) with ImplicitSen
       }
 
       system2.terminate()
-      Await.ready(latch, 5 seconds)
+      Await.ready(latch, 5.seconds)
 
       val expected = (for (i <- 1 to count) yield i).reverse
 
@@ -243,7 +243,7 @@ class ActorSystemSpec extends PekkoSpec(ActorSystemSpec.config) with ImplicitSen
       import system.dispatcher
       system2.scheduler.scheduleOnce(200.millis.dilated) { system2.terminate() }
 
-      Await.ready(system2.whenTerminated, 5 seconds)
+      Await.ready(system2.whenTerminated, 5.seconds)
       callbackWasRun should ===(true)
     }
 
@@ -252,17 +252,17 @@ class ActorSystemSpec extends PekkoSpec(ActorSystemSpec.config) with ImplicitSen
       val wt = system.whenTerminated
       wt.isCompleted should ===(false)
       val f = system.terminate()
-      val terminated = Await.result(wt, 10 seconds)
+      val terminated = Await.result(wt, 10.seconds)
       system.whenTerminated.isCompleted should ===(true)
       terminated.actor should ===(system.provider.rootGuardian)
       terminated.addressTerminated should ===(true)
       terminated.existenceConfirmed should ===(true)
-      (terminated should be).theSameInstanceAs(Await.result(f, 10 seconds))
+      (terminated should be).theSameInstanceAs(Await.result(f, 10.seconds))
     }
 
     "throw RejectedExecutionException when shutdown" in {
       val system2 = ActorSystem("RejectedExecution-1", PekkoSpec.testConf)
-      Await.ready(system2.terminate(), 10 seconds)
+      Await.ready(system2.terminate(), 10.seconds)
 
       intercept[RejectedExecutionException] {
         system2.registerOnTermination { println("IF YOU SEE THIS THEN THERE'S A BUG HERE") }
@@ -287,7 +287,7 @@ class ActorSystemSpec extends PekkoSpec(ActorSystemSpec.config) with ImplicitSen
 
     "reliably create waves of actors" in {
       import system.dispatcher
-      implicit val timeout: Timeout = Timeout((20 seconds).dilated)
+      implicit val timeout: Timeout = Timeout(20.seconds.dilated)
       val waves = for (_ <- 1 to 3) yield system.actorOf(Props[ActorSystemSpec.Waves]()) ? 50000
       Await.result(Future.sequence(waves), timeout.duration + 5.seconds) should ===(Vector("done", "done", "done"))
     }
@@ -300,7 +300,7 @@ class ActorSystemSpec extends PekkoSpec(ActorSystemSpec.config) with ImplicitSen
     "reliable deny creation of actors while shutting down" in {
       val system = ActorSystem()
       import system.dispatcher
-      system.scheduler.scheduleOnce(100 millis) { system.terminate() }
+      system.scheduler.scheduleOnce(100.millis) { system.terminate() }
       var failing = false
       var created = Vector.empty[ActorRef]
       while (!system.whenTerminated.isCompleted) {
diff --git a/actor-tests/src/test/scala/org/apache/pekko/actor/ActorWithBoundedStashSpec.scala b/actor-tests/src/test/scala/org/apache/pekko/actor/ActorWithBoundedStashSpec.scala
index e8a1ec7d2d..f89d2e20e3 100644
--- a/actor-tests/src/test/scala/org/apache/pekko/actor/ActorWithBoundedStashSpec.scala
+++ b/actor-tests/src/test/scala/org/apache/pekko/actor/ActorWithBoundedStashSpec.scala
@@ -67,9 +67,9 @@ object ActorWithBoundedStashSpec {
   }
 
   // bounded deque-based mailbox with capacity 10
-  class Bounded10(@unused settings: Settings, @unused config: Config) extends BoundedDequeBasedMailbox(10, 500 millis)
+  class Bounded10(@unused settings: Settings, @unused config: Config) extends BoundedDequeBasedMailbox(10, 500.millis)
 
-  class Bounded100(@unused settings: Settings, @unused config: Config) extends BoundedDequeBasedMailbox(100, 500 millis)
+  class Bounded100(@unused settings: Settings, @unused config: Config) extends BoundedDequeBasedMailbox(100, 500.millis)
 
   val dispatcherId1 = "my-dispatcher-1"
   val dispatcherId2 = "my-dispatcher-2"
diff --git a/actor-tests/src/test/scala/org/apache/pekko/actor/ActorWithStashSpec.scala b/actor-tests/src/test/scala/org/apache/pekko/actor/ActorWithStashSpec.scala
index 636117cd85..d568f561eb 100644
--- a/actor-tests/src/test/scala/org/apache/pekko/actor/ActorWithStashSpec.scala
+++ b/actor-tests/src/test/scala/org/apache/pekko/actor/ActorWithStashSpec.scala
@@ -144,13 +144,13 @@ class ActorWithStashSpec extends PekkoSpec with DefaultTimeout with BeforeAndAft
       val stasher = system.actorOf(Props[StashingTwiceActor]())
       stasher ! "hello"
       stasher ! "hello"
-      Await.ready(state.expectedException, 10 seconds)
+      Await.ready(state.expectedException, 10.seconds)
     }
 
     "process stashed messages after restart" in {
       val boss = system.actorOf(
         Props(
-          new Supervisor(OneForOneStrategy(maxNrOfRetries = 2, withinTimeRange = 1 second)(List(classOf[Throwable])))))
+          new Supervisor(OneForOneStrategy(maxNrOfRetries = 2, withinTimeRange = 1.second)(List(classOf[Throwable])))))
 
       val restartLatch = new TestLatch
       val hasMsgLatch = new TestLatch
@@ -180,8 +180,8 @@ class ActorWithStashSpec extends PekkoSpec with DefaultTimeout with BeforeAndAft
       employee ! "hello"
       employee ! "crash"
 
-      Await.ready(restartLatch, 10 seconds)
-      Await.ready(hasMsgLatch, 10 seconds)
+      Await.ready(restartLatch, 10.seconds)
+      Await.ready(hasMsgLatch, 10.seconds)
     }
 
     "re-receive unstashed Terminated messages" in {
diff --git a/actor-tests/src/test/scala/org/apache/pekko/actor/ConsistencySpec.scala b/actor-tests/src/test/scala/org/apache/pekko/actor/ConsistencySpec.scala
index b4777152a3..40def6754d 100644
--- a/actor-tests/src/test/scala/org/apache/pekko/actor/ConsistencySpec.scala
+++ b/actor-tests/src/test/scala/org/apache/pekko/actor/ConsistencySpec.scala
@@ -80,7 +80,7 @@ class ConsistencySpec extends PekkoSpec(ConsistencySpec.config) {
 
       for (a <- actors) { a.tell("done", testActor) }
 
-      for (_ <- actors) expectMsg(5 minutes, "done")
+      for (_ <- actors) expectMsg(5.minutes, "done")
     }
   }
 }
diff --git a/actor-tests/src/test/scala/org/apache/pekko/actor/DeathWatchSpec.scala b/actor-tests/src/test/scala/org/apache/pekko/actor/DeathWatchSpec.scala
index 6c25147c31..17d46d39ef 100644
--- a/actor-tests/src/test/scala/org/apache/pekko/actor/DeathWatchSpec.scala
+++ b/actor-tests/src/test/scala/org/apache/pekko/actor/DeathWatchSpec.scala
@@ -125,11 +125,11 @@ trait DeathWatchSpec { this: PekkoSpec with ImplicitSender with DefaultTimeout =
   lazy val supervisor = system.actorOf(Props(classOf[Supervisor], SupervisorStrategy.defaultStrategy), "watchers")
 
   def startWatching(target: ActorRef) =
-    Await.result((supervisor ? Watcher.props(target, testActor)).mapTo[ActorRef], 3 seconds)
+    Await.result((supervisor ? Watcher.props(target, testActor)).mapTo[ActorRef], 3.seconds)
 
   "The Death Watch" must {
     def expectTerminationOf(actorRef: ActorRef) =
-      expectMsgPF(5 seconds, "" + actorRef + ": Stopped or Already terminated when linking") {
+      expectMsgPF(5.seconds, "" + actorRef + ": Stopped or Already terminated when linking") {
         case WrappedTerminated(Terminated(`actorRef`)) => true
       }
 
@@ -236,7 +236,7 @@ trait DeathWatchSpec { this: PekkoSpec with ImplicitSender with DefaultTimeout =
         startWatching(brother)
 
         failed ! Kill
-        val result = receiveWhile(3 seconds, messages = 3) {
+        val result = receiveWhile(3.seconds, messages = 3) {
           case FF(Failed(_, _: ActorKilledException, _)) if lastSender eq failed       => 1
           case FF(Failed(_, DeathPactException(`failed`), _)) if lastSender eq brother => 2
           case WrappedTerminated(Terminated(`brother`))                                => 3
diff --git a/actor-tests/src/test/scala/org/apache/pekko/actor/DeployerSpec.scala b/actor-tests/src/test/scala/org/apache/pekko/actor/DeployerSpec.scala
index e19dedaabc..4fb87ac4f2 100644
--- a/actor-tests/src/test/scala/org/apache/pekko/actor/DeployerSpec.scala
+++ b/actor-tests/src/test/scala/org/apache/pekko/actor/DeployerSpec.scala
@@ -201,7 +201,7 @@ class DeployerSpec extends PekkoSpec(DeployerSpec.deployerConf) {
     "be able to parse 'pekko.actor.deployment._' with scatter-gather router" in {
       assertRouting(
         "/service-scatter-gather",
-        ScatterGatherFirstCompletedPool(nrOfInstances = 1, within = 2 seconds),
+        ScatterGatherFirstCompletedPool(nrOfInstances = 1, within = 2.seconds),
         "/service-scatter-gather")
     }
 
@@ -218,7 +218,7 @@ class DeployerSpec extends PekkoSpec(DeployerSpec.deployerConf) {
       assertRouting("/some/wildcardmatch", RandomPool(1), "/some/*")
       assertRouting(
         "/somewildcardmatch/some",
-        ScatterGatherFirstCompletedPool(nrOfInstances = 1, within = 2 seconds),
+        ScatterGatherFirstCompletedPool(nrOfInstances = 1, within = 2.seconds),
         "/*/some")
     }
 
diff --git a/actor-tests/src/test/scala/org/apache/pekko/actor/FSMActorSpec.scala b/actor-tests/src/test/scala/org/apache/pekko/actor/FSMActorSpec.scala
index 5138864c2c..422f2839f3 100644
--- a/actor-tests/src/test/scala/org/apache/pekko/actor/FSMActorSpec.scala
+++ b/actor-tests/src/test/scala/org/apache/pekko/actor/FSMActorSpec.scala
@@ -113,7 +113,7 @@ object FSMActorSpec {
 class FSMActorSpec extends PekkoSpec(Map("pekko.actor.debug.fsm" -> true)) with ImplicitSender {
   import FSMActorSpec._
 
-  val timeout = Timeout(2 seconds)
+  val timeout = Timeout(2.seconds)
 
   "An FSM Actor" must {
 
@@ -125,7 +125,7 @@ class FSMActorSpec extends PekkoSpec(Map("pekko.actor.debug.fsm" -> true)) with
       import latches._
 
       // lock that locked after being open for 1 sec
-      val lock = system.actorOf(Props(new Lock("33221", 1 second, latches)))
+      val lock = system.actorOf(Props(new Lock("33221", 1.second, latches)))
 
       val transitionTester = system.actorOf(Props(new Actor {
         def receive = {
@@ -179,7 +179,7 @@ class FSMActorSpec extends PekkoSpec(Map("pekko.actor.debug.fsm" -> true)) with
       EventFilter.error("Next state 2 does not exist", occurrences = 1).intercept {
         system.eventStream.subscribe(testActor, classOf[Logging.Error])
         fsm ! "go"
-        expectMsgPF(1 second, hint = "Next state 2 does not exist") {
+        expectMsgPF(1.second, hint = "Next state 2 does not exist") {
           case Logging.Error(_, `name`, _, "Next state 2 does not exist") => true
         }
         system.eventStream.unsubscribe(testActor)
@@ -203,7 +203,7 @@ class FSMActorSpec extends PekkoSpec(Map("pekko.actor.debug.fsm" -> true)) with
       val ref = system.actorOf(Props(fsm))
       Await.ready(started, timeout.duration)
       system.stop(ref)
-      expectMsg(1 second, fsm.StopEvent(FSM.Shutdown, 1, null))
+      expectMsg(1.second, fsm.StopEvent(FSM.Shutdown, 1, null))
     }
 
     "run onTermination with updated state upon stop(reason, stateData)" in {
@@ -230,12 +230,12 @@ class FSMActorSpec extends PekkoSpec(Map("pekko.actor.debug.fsm" -> true)) with
         when("not-started") {
           case Event("start", _) => goto("started").replying("starting")
         }
-        when("started", stateTimeout = 10 seconds) {
+        when("started", stateTimeout = 10.seconds) {
           case Event("stop", _) => stop()
         }
         onTransition {
           case "not-started" -> "started" =>
-            for (timerName <- timerNames) startSingleTimer(timerName, (), 10 seconds)
+            for (timerName <- timerNames) startSingleTimer(timerName, (), 10.seconds)
         }
         onTermination {
           case _ => {
@@ -253,11 +253,11 @@ class FSMActorSpec extends PekkoSpec(Map("pekko.actor.debug.fsm" -> true)) with
       checkTimersActive(false)
 
       fsmref ! "start"
-      expectMsg(1 second, "starting")
+      expectMsg(1.second, "starting")
       checkTimersActive(true)
 
       fsmref ! "stop"
-      expectMsg(1 second, "stopped")
+      expectMsg(1.second, "stopped")
     }
 
     "log events and transitions if asked to do so" in {
@@ -273,7 +273,7 @@ class FSMActorSpec extends PekkoSpec(Map("pekko.actor.debug.fsm" -> true)) with
               startWith(1, null)
               when(1) {
                 case Event("go", _) =>
-                  startSingleTimer("t", FSM.Shutdown, 1.5 seconds)
+                  startSingleTimer("t", FSM.Shutdown, 1.5.seconds)
                   goto(2)
               }
               when(2) {
@@ -289,21 +289,21 @@ class FSMActorSpec extends PekkoSpec(Map("pekko.actor.debug.fsm" -> true)) with
             val fsmClass = fsm.underlyingActor.getClass
             system.eventStream.subscribe(testActor, classOf[Logging.Debug])
             fsm ! "go"
-            expectMsgPF(1 second, hint = "processing Event(go,null)") {
+            expectMsgPF(1.second, hint = "processing Event(go,null)") {
               case Logging.Debug(`name`, `fsmClass`, s: String)
                   if s.startsWith("processing Event(go,null) from Actor[") =>
                 true
             }
-            expectMsg(1 second, Logging.Debug(name, fsmClass, "setting timer 't'/1500 milliseconds: Shutdown"))
-            expectMsg(1 second, Logging.Debug(name, fsmClass, "transition 1 -> 2"))
+            expectMsg(1.second, Logging.Debug(name, fsmClass, "setting timer 't'/1500 milliseconds: Shutdown"))
+            expectMsg(1.second, Logging.Debug(name, fsmClass, "transition 1 -> 2"))
             fsm ! "stop"
-            expectMsgPF(1 second, hint = "processing Event(stop,null)") {
+            expectMsgPF(1.second, hint = "processing Event(stop,null)") {
               case Logging.Debug(`name`, `fsmClass`, s: String)
                   if s.startsWith("processing Event(stop,null) from Actor[") =>
                 true
             }
-            expectMsgAllOf(1 second, Logging.Debug(name, fsmClass, "canceling timer 't'"), FSM.Normal)
-            expectNoMessage(1 second)
+            expectMsgAllOf(1.second, Logging.Debug(name, fsmClass, "canceling timer 't'"), FSM.Normal)
+            expectNoMessage(1.second)
             system.eventStream.unsubscribe(testActor)
           }
         }
@@ -323,13 +323,13 @@ class FSMActorSpec extends PekkoSpec(Map("pekko.actor.debug.fsm" -> true)) with
       })
       fsmref ! "log"
       import FSM.LogEntry
-      expectMsg(1 second, IndexedSeq(LogEntry(1, 0, "log")))
+      expectMsg(1.second, IndexedSeq(LogEntry(1, 0, "log")))
       fsmref ! "count"
       fsmref ! "log"
-      expectMsg(1 second, IndexedSeq(LogEntry(1, 0, "log"), LogEntry(1, 0, "count"), LogEntry(1, 1, "log")))
+      expectMsg(1.second, IndexedSeq(LogEntry(1, 0, "log"), LogEntry(1, 0, "count"), LogEntry(1, 1, "log")))
       fsmref ! "count"
       fsmref ! "log"
-      expectMsg(1 second, IndexedSeq(LogEntry(1, 1, "log"), LogEntry(1, 1, "count"), LogEntry(1, 2, "log")))
+      expectMsg(1.second, IndexedSeq(LogEntry(1, 1, "log"), LogEntry(1, 1, "count"), LogEntry(1, 2, "log")))
     }
 
     "allow transforming of state results" in {
diff --git a/actor-tests/src/test/scala/org/apache/pekko/actor/FSMTimingSpec.scala b/actor-tests/src/test/scala/org/apache/pekko/actor/FSMTimingSpec.scala
index 3e032627ba..c5e7cd4929 100644
--- a/actor-tests/src/test/scala/org/apache/pekko/actor/FSMTimingSpec.scala
+++ b/actor-tests/src/test/scala/org/apache/pekko/actor/FSMTimingSpec.scala
@@ -24,7 +24,7 @@ class FSMTimingSpec extends PekkoSpec with ImplicitSender {
 
   val fsm = system.actorOf(Props(new StateMachine(testActor)))
   fsm ! SubscribeTransitionCallBack(testActor)
-  expectMsg(1 second, CurrentState(fsm, Initial))
+  expectMsg(1.second, CurrentState(fsm, Initial))
 
   ignoreMsg {
     case Transition(_, bs: FSMTimingSpec.State, _) if bs eq Initial => true // SI-5900 workaround
@@ -33,8 +33,8 @@ class FSMTimingSpec extends PekkoSpec with ImplicitSender {
   "A Finite State Machine" must {
 
     "receive StateTimeout" taggedAs TimingTest in {
-      within(2 seconds) {
-        within(500 millis, 2 seconds) {
+      within(2.seconds) {
+        within(500.millis, 2.seconds) {
           fsm ! TestStateTimeout
           expectMsg(Transition(fsm, TestStateTimeout, Initial))
         }
@@ -43,7 +43,7 @@ class FSMTimingSpec extends PekkoSpec with ImplicitSender {
     }
 
     "cancel a StateTimeout" taggedAs TimingTest in {
-      within(1 second) {
+      within(1.second) {
         fsm ! TestStateTimeout
         fsm ! Cancel
         expectMsg(Cancel)
@@ -56,18 +56,18 @@ class FSMTimingSpec extends PekkoSpec with ImplicitSender {
       val stoppingActor = system.actorOf(Props[StoppingActor]())
       system.eventStream.subscribe(testActor, classOf[DeadLetter])
       stoppingActor ! TestStoppingActorStateTimeout
-      within(400 millis) {
+      within(400.millis) {
         expectNoMessage(remainingOrDefault)
       }
     }
 
     "allow StateTimeout override" taggedAs TimingTest in {
       // the timeout in state TestStateTimeout is 800 ms, then it will change to Initial
-      within(400 millis) {
+      within(400.millis) {
         fsm ! TestStateTimeoutOverride
         expectNoMessage()
       }
-      within(1 second) {
+      within(1.second) {
         fsm ! Cancel
         expectMsg(Cancel)
         expectMsg(Transition(fsm, TestStateTimeout, Initial))
@@ -75,8 +75,8 @@ class FSMTimingSpec extends PekkoSpec with ImplicitSender {
     }
 
     "receive single-shot timer" taggedAs TimingTest in {
-      within(2 seconds) {
-        within(500 millis, 1 second) {
+      within(2.seconds) {
+        within(500.millis, 1.second) {
           fsm ! TestSingleTimer
           expectMsg(Tick)
           expectMsg(Transition(fsm, TestSingleTimer, Initial))
@@ -86,12 +86,12 @@ class FSMTimingSpec extends PekkoSpec with ImplicitSender {
     }
 
     "resubmit single-shot timer" taggedAs TimingTest in {
-      within(2.5 seconds) {
-        within(500 millis, 1 second) {
+      within(2.5.seconds) {
+        within(500.millis, 1.second) {
           fsm ! TestSingleTimerResubmit
           expectMsg(Tick)
         }
-        within(1 second) {
+        within(1.second) {
           expectMsg(Tock)
           expectMsg(Transition(fsm, TestSingleTimerResubmit, Initial))
         }
@@ -101,28 +101,28 @@ class FSMTimingSpec extends PekkoSpec with ImplicitSender {
 
     "correctly cancel a named timer" taggedAs TimingTest in {
       fsm ! TestCancelTimer
-      within(500 millis) {
+      within(500.millis) {
         fsm ! Tick
         expectMsg(Tick)
       }
-      within(300 millis, 1 second) {
+      within(300.millis, 1.second) {
         expectMsg(Tock)
       }
       fsm ! Cancel
-      expectMsg(1 second, Transition(fsm, TestCancelTimer, Initial))
+      expectMsg(1.second, Transition(fsm, TestCancelTimer, Initial))
     }
 
     "not get confused between named and state timers" taggedAs TimingTest in {
       fsm ! TestCancelStateTimerInNamedTimerMessage
       fsm ! Tick
-      expectMsg(500 millis, Tick)
+      expectMsg(500.millis, Tick)
       Thread.sleep(200) // this is ugly: need to wait for StateTimeout to be queued
       resume(fsm)
       expectMsg(
-        500 millis,
+        500.millis,
         Transition(fsm, TestCancelStateTimerInNamedTimerMessage, TestCancelStateTimerInNamedTimerMessage2))
       fsm ! Cancel
-      within(500 millis) {
+      within(500.millis) {
         expectMsg(Cancel) // if this is not received, that means StateTimeout was not properly discarded
         expectMsg(Transition(fsm, TestCancelStateTimerInNamedTimerMessage2, Initial))
       }
@@ -130,11 +130,11 @@ class FSMTimingSpec extends PekkoSpec with ImplicitSender {
 
     "receive and cancel a repeated timer" taggedAs TimingTest in {
       fsm ! TestRepeatedTimer
-      val seq = receiveWhile(2 seconds) {
+      val seq = receiveWhile(2.seconds) {
         case Tick => Tick
       }
       (seq should have).length(5)
-      within(500 millis) {
+      within(500.millis) {
         expectMsg(Transition(fsm, TestRepeatedTimer, Initial))
       }
     }
@@ -147,7 +147,7 @@ class FSMTimingSpec extends PekkoSpec with ImplicitSender {
           source = fsm.path.toString,
           occurrences = 1)) {
         fsm ! TestUnhandled
-        within(3 second) {
+        within(3.second) {
           fsm ! Tick
           fsm ! SetHandler
           fsm ! Tick
@@ -292,7 +292,7 @@ object FSMTimingSpec {
   class StoppingActor extends Actor with FSM[State, Int] {
     startWith(Initial, 0)
 
-    when(Initial, 200 millis) {
+    when(Initial, 200.millis) {
       case Event(TestStoppingActorStateTimeout, _) =>
         context.stop(self)
         stay()
diff --git a/actor-tests/src/test/scala/org/apache/pekko/actor/FSMTransitionSpec.scala b/actor-tests/src/test/scala/org/apache/pekko/actor/FSMTransitionSpec.scala
index 35c092e040..38a9c7b1c1 100644
--- a/actor-tests/src/test/scala/org/apache/pekko/actor/FSMTransitionSpec.scala
+++ b/actor-tests/src/test/scala/org/apache/pekko/actor/FSMTransitionSpec.scala
@@ -91,7 +91,7 @@ class FSMTransitionSpec extends PekkoSpec with ImplicitSender {
       import FSM.{ CurrentState, SubscribeTransitionCallBack, Transition }
 
       val fsm = system.actorOf(Props(new MyFSM(testActor)))
-      within(1 second) {
+      within(1.second) {
         fsm ! SubscribeTransitionCallBack(testActor)
         expectMsg(CurrentState(fsm, 0))
         fsm ! "tick"
@@ -105,10 +105,10 @@ class FSMTransitionSpec extends PekkoSpec with ImplicitSender {
       val forward = system.actorOf(Props(new Forwarder(testActor)))
       val fsm = system.actorOf(Props(new MyFSM(testActor)))
 
-      within(1 second) {
+      within(1.second) {
         fsm ! FSM.SubscribeTransitionCallBack(forward)
         expectMsg(FSM.CurrentState(fsm, 0))
-        pekko.pattern.gracefulStop(forward, 5 seconds)
+        pekko.pattern.gracefulStop(forward, 5.seconds)
         fsm ! "tick"
         expectNoMessage()
       }
@@ -119,7 +119,7 @@ class FSMTransitionSpec extends PekkoSpec with ImplicitSender {
 
     "make previous and next state data available in onTransition" in {
       val fsm = system.actorOf(Props(new OtherFSM(testActor)))
-      within(1 second) {
+      within(1.second) {
         fsm ! "tick"
         expectMsg((0, 1))
       }
@@ -130,7 +130,7 @@ class FSMTransitionSpec extends PekkoSpec with ImplicitSender {
       val forward = system.actorOf(Props(new Forwarder(testActor)))
       val fsm = system.actorOf(Props(new OtherFSM(testActor)))
 
-      within(1 second) {
+      within(1.second) {
         fsm ! FSM.SubscribeTransitionCallBack(forward)
         expectMsg(FSM.CurrentState(fsm, 0))
         fsm ! "tick"
@@ -146,7 +146,7 @@ class FSMTransitionSpec extends PekkoSpec with ImplicitSender {
       val forward = system.actorOf(Props(new Forwarder(testActor)))
       val fsm = system.actorOf(Props(new OtherFSM(testActor)))
 
-      within(1 second) {
+      within(1.second) {
         fsm ! FSM.SubscribeTransitionCallBack(forward)
         expectMsg(FSM.CurrentState(fsm, 0))
         fsm ! "stay"
diff --git a/actor-tests/src/test/scala/org/apache/pekko/actor/ForwardActorSpec.scala b/actor-tests/src/test/scala/org/apache/pekko/actor/ForwardActorSpec.scala
index e7f1efa3c1..433e6ccae0 100644
--- a/actor-tests/src/test/scala/org/apache/pekko/actor/ForwardActorSpec.scala
+++ b/actor-tests/src/test/scala/org/apache/pekko/actor/ForwardActorSpec.scala
@@ -52,13 +52,13 @@ class ForwardActorSpec extends PekkoSpec {
       val chain = createForwardingChain(system)
 
       chain.tell(ExpectedMessage, replyTo)
-      expectMsg(5 seconds, ExpectedMessage)
+      expectMsg(5.seconds, ExpectedMessage)
     }
 
     "forward actor reference when invoking forward on ask" in {
       val chain = createForwardingChain(system)
-      chain.ask(ExpectedMessage)(5 seconds).pipeTo(testActor)
-      expectMsg(5 seconds, ExpectedMessage)
+      chain.ask(ExpectedMessage)(5.seconds).pipeTo(testActor)
+      expectMsg(5.seconds, ExpectedMessage)
     }
   }
 }
diff --git a/actor-tests/src/test/scala/org/apache/pekko/actor/LocalActorRefProviderSpec.scala b/actor-tests/src/test/scala/org/apache/pekko/actor/LocalActorRefProviderSpec.scala
index 7073d1989d..f8ebd054ed 100644
--- a/actor-tests/src/test/scala/org/apache/pekko/actor/LocalActorRefProviderSpec.scala
+++ b/actor-tests/src/test/scala/org/apache/pekko/actor/LocalActorRefProviderSpec.scala
@@ -126,7 +126,7 @@ class LocalActorRefProviderSpec extends PekkoSpec(LocalActorRefProviderSpec.conf
           val childProps2 = child.asInstanceOf[LocalActorRef].underlying.props
           childProps2 should not be theSameInstanceAs(childProps1)
           (childProps2 should be).theSameInstanceAs(ActorCell.terminatedProps)
-        }, 1 second)
+        }, 1.second)
     }
   }
 
@@ -140,7 +140,7 @@ class LocalActorRefProviderSpec extends PekkoSpec(LocalActorRefProviderSpec.conf
 
       for (i <- 0 until 100) {
         val address = "new-actor" + i
-        implicit val timeout: Timeout = Timeout(5 seconds)
+        implicit val timeout: Timeout = Timeout(5.seconds)
         val actors =
           for (_ <- 1 to 4)
             yield Future(system.actorOf(Props(new Actor { def receive = { case _ => } }), address))
diff --git a/actor-tests/src/test/scala/org/apache/pekko/actor/ReceiveTimeoutSpec.scala b/actor-tests/src/test/scala/org/apache/pekko/actor/ReceiveTimeoutSpec.scala
index e00687a900..30f5d3b02a 100644
--- a/actor-tests/src/test/scala/org/apache/pekko/actor/ReceiveTimeoutSpec.scala
+++ b/actor-tests/src/test/scala/org/apache/pekko/actor/ReceiveTimeoutSpec.scala
@@ -85,7 +85,7 @@ class ReceiveTimeoutSpec extends PekkoSpec() {
       val timeoutLatch = TestLatch()
 
       val timeoutActor = system.actorOf(Props(new Actor {
-        context.setReceiveTimeout(500 milliseconds)
+        context.setReceiveTimeout(500.milliseconds)
 
         def receive = {
           case ReceiveTimeout => timeoutLatch.open()
@@ -100,7 +100,7 @@ class ReceiveTimeoutSpec extends PekkoSpec() {
       val timeoutLatch = TestLatch()
 
       val timeoutActor = system.actorOf(Props(new Actor {
-        context.setReceiveTimeout(500 milliseconds)
+        context.setReceiveTimeout(500.milliseconds)
 
         def receive = {
           case Tick           => ()
@@ -119,7 +119,7 @@ class ReceiveTimeoutSpec extends PekkoSpec() {
       val timeoutLatch = TestLatch()
 
       val timeoutActor = system.actorOf(Props(new Actor {
-        context.setReceiveTimeout(500 milliseconds)
+        context.setReceiveTimeout(500.milliseconds)
 
         def receive = {
           case Tick => ()
@@ -146,7 +146,7 @@ class ReceiveTimeoutSpec extends PekkoSpec() {
         }
       }))
 
-      intercept[TimeoutException] { Await.ready(timeoutLatch, 1 second) }
+      intercept[TimeoutException] { Await.ready(timeoutLatch, 1.second) }
       system.stop(timeoutActor)
     }
 
@@ -154,7 +154,7 @@ class ReceiveTimeoutSpec extends PekkoSpec() {
       val timeoutLatch = TestLatch()
 
       val timeoutActor = system.actorOf(Props(new Actor {
-        context.setReceiveTimeout(1 second)
+        context.setReceiveTimeout(1.second)
 
         def receive = {
           case ReceiveTimeout  => timeoutLatch.open()
@@ -176,7 +176,7 @@ class ReceiveTimeoutSpec extends PekkoSpec() {
       val timeoutLatch = TestLatch(2)
 
       val timeoutActor = system.actorOf(Props(new Actor {
-        context.setReceiveTimeout(1 second)
+        context.setReceiveTimeout(1.second)
 
         def receive = {
           case ReceiveTimeout =>
@@ -198,7 +198,7 @@ class ReceiveTimeoutSpec extends PekkoSpec() {
         timers.startTimerWithFixedDelay("transparentTick", TransparentTick, 100.millis)
         timers.startTimerWithFixedDelay("identifyTick", Identify(None), 100.millis)
 
-        context.setReceiveTimeout(1 second)
+        context.setReceiveTimeout(1.second)
         def receive: Receive = {
           case ReceiveTimeout =>
             timeoutLatch.open()
@@ -219,7 +219,7 @@ class ReceiveTimeoutSpec extends PekkoSpec() {
 
       val timeoutActor = system.actorOf(Props(new Actor {
         def receive = {
-          case TransparentTick => context.setReceiveTimeout(500 milliseconds)
+          case TransparentTick => context.setReceiveTimeout(500.milliseconds)
           case ReceiveTimeout  => timeoutLatch.open()
         }
       }))
@@ -234,7 +234,7 @@ class ReceiveTimeoutSpec extends PekkoSpec() {
       val timeoutLatch = TestLatch()
 
       val timeoutActor = system.actorOf(Props(new Actor {
-        context.setReceiveTimeout(500 milliseconds)
+        context.setReceiveTimeout(500.milliseconds)
 
         def receive = {
           case TransparentTick => context.setReceiveTimeout(Duration.Inf)
@@ -244,7 +244,7 @@ class ReceiveTimeoutSpec extends PekkoSpec() {
 
       timeoutActor ! TransparentTick
 
-      intercept[TimeoutException] { Await.ready(timeoutLatch, 1 second) }
+      intercept[TimeoutException] { Await.ready(timeoutLatch, 1.second) }
       system.stop(timeoutActor)
     }
 
diff --git a/actor-tests/src/test/scala/org/apache/pekko/actor/RestartStrategySpec.scala b/actor-tests/src/test/scala/org/apache/pekko/actor/RestartStrategySpec.scala
index 0e7dec918f..d3cdd70cc8 100644
--- a/actor-tests/src/test/scala/org/apache/pekko/actor/RestartStrategySpec.scala
+++ b/actor-tests/src/test/scala/org/apache/pekko/actor/RestartStrategySpec.scala
@@ -44,7 +44,7 @@ class RestartStrategySpec extends PekkoSpec with DefaultTimeout {
     "ensure that employee stays dead after max restarts within time range" in {
       val boss = system.actorOf(
         Props(
-          new Supervisor(OneForOneStrategy(maxNrOfRetries = 2, withinTimeRange = 1 second)(List(classOf[Throwable])))))
+          new Supervisor(OneForOneStrategy(maxNrOfRetries = 2, withinTimeRange = 1.second)(List(classOf[Throwable])))))
 
       val restartLatch = new TestLatch
       val secondRestartLatch = new TestLatch
@@ -76,17 +76,17 @@ class RestartStrategySpec extends PekkoSpec with DefaultTimeout {
       employee ! Ping
 
       // test restart and post restart ping
-      Await.ready(restartLatch, 10 seconds)
+      Await.ready(restartLatch, 10.seconds)
 
       // now crash again... should not restart
       employee ! Crash
       employee ! Ping
 
-      Await.ready(secondRestartLatch, 10 seconds)
-      Await.ready(countDownLatch, 10 seconds)
+      Await.ready(secondRestartLatch, 10.seconds)
+      Await.ready(countDownLatch, 10.seconds)
 
       employee ! Crash
-      Await.ready(stopLatch, 10 seconds)
+      Await.ready(stopLatch, 10.seconds)
     }
 
     "ensure that employee is immortal without max restarts and time range" in {
@@ -109,13 +109,13 @@ class RestartStrategySpec extends PekkoSpec with DefaultTimeout {
       (1 to 100).foreach { _ =>
         employee ! Crash
       }
-      Await.ready(countDownLatch, 2 minutes)
+      Await.ready(countDownLatch, 2.minutes)
       assert(!employee.isTerminated)
     }
 
     "ensure that employee restarts after number of crashes not within time range" in {
       val boss = system.actorOf(Props(
-        new Supervisor(OneForOneStrategy(maxNrOfRetries = 2, withinTimeRange = 500 millis)(List(classOf[Throwable])))))
+        new Supervisor(OneForOneStrategy(maxNrOfRetries = 2, withinTimeRange = 500.millis)(List(classOf[Throwable])))))
 
       val restartLatch = new TestLatch
       val secondRestartLatch = new TestLatch
@@ -150,14 +150,14 @@ class RestartStrategySpec extends PekkoSpec with DefaultTimeout {
       employee ! Ping
       employee ! Crash
 
-      Await.ready(restartLatch, 10 seconds)
-      Await.ready(pingLatch, 10 seconds)
+      Await.ready(restartLatch, 10.seconds)
+      Await.ready(pingLatch, 10.seconds)
 
       employee ! Ping
       employee ! Crash
 
-      Await.ready(secondRestartLatch, 10 seconds)
-      Await.ready(secondPingLatch, 10 seconds)
+      Await.ready(secondRestartLatch, 10.seconds)
+      Await.ready(secondPingLatch, 10.seconds)
 
       // sleep to go out of the restart strategy's time range
       sleep(700L)
@@ -166,7 +166,7 @@ class RestartStrategySpec extends PekkoSpec with DefaultTimeout {
       employee ! Crash
       employee ! Ping
 
-      Await.ready(thirdRestartLatch, 1 second)
+      Await.ready(thirdRestartLatch, 1.second)
 
       assert(!employee.isTerminated)
     }
@@ -203,7 +203,7 @@ class RestartStrategySpec extends PekkoSpec with DefaultTimeout {
       employee ! Ping
 
       // test restart and post restart ping
-      Await.ready(restartLatch, 10 seconds)
+      Await.ready(restartLatch, 10.seconds)
 
       assert(!employee.isTerminated)
 
@@ -211,13 +211,13 @@ class RestartStrategySpec extends PekkoSpec with DefaultTimeout {
       employee ! Crash
       employee ! Ping
 
-      Await.ready(secondRestartLatch, 10 seconds)
-      Await.ready(countDownLatch, 10 seconds)
+      Await.ready(secondRestartLatch, 10.seconds)
+      Await.ready(countDownLatch, 10.seconds)
 
       sleep(700L)
 
       employee ! Crash
-      Await.ready(stopLatch, 10 seconds)
+      Await.ready(stopLatch, 10.seconds)
       sleep(500L)
       assert(employee.isTerminated)
     }
@@ -227,7 +227,7 @@ class RestartStrategySpec extends PekkoSpec with DefaultTimeout {
       val countDownLatch = new TestLatch(2)
 
       val boss = system.actorOf(Props(new Actor {
-        override val supervisorStrategy = OneForOneStrategy(withinTimeRange = 1 second)(List(classOf[Throwable]))
+        override val supervisorStrategy = OneForOneStrategy(withinTimeRange = 1.second)(List(classOf[Throwable]))
         def receive = {
           case p: Props      => sender() ! context.watch(context.actorOf(p))
           case _: Terminated => maxNoOfRestartsLatch.open()
@@ -256,7 +256,7 @@ class RestartStrategySpec extends PekkoSpec with DefaultTimeout {
       employee ! Ping
 
       // test restart and post restart ping
-      Await.ready(restartLatch, 10 seconds)
+      Await.ready(restartLatch, 10.seconds)
 
       assert(!employee.isTerminated)
 
@@ -265,14 +265,14 @@ class RestartStrategySpec extends PekkoSpec with DefaultTimeout {
 
       // may not be running
       employee ! Ping
-      Await.ready(countDownLatch, 10 seconds)
+      Await.ready(countDownLatch, 10.seconds)
 
       // may not be running
       employee ! Crash
 
-      Await.ready(stopLatch, 10 seconds)
+      Await.ready(stopLatch, 10.seconds)
 
-      Await.ready(maxNoOfRestartsLatch, 10 seconds)
+      Await.ready(maxNoOfRestartsLatch, 10.seconds)
       sleep(500L)
       assert(employee.isTerminated)
     }
diff --git a/actor-tests/src/test/scala/org/apache/pekko/actor/SchedulerSpec.scala b/actor-tests/src/test/scala/org/apache/pekko/actor/SchedulerSpec.scala
index cb1fd0b9bc..c8c1c37602 100644
--- a/actor-tests/src/test/scala/org/apache/pekko/actor/SchedulerSpec.scala
+++ b/actor-tests/src/test/scala/org/apache/pekko/actor/SchedulerSpec.scala
@@ -118,13 +118,13 @@ trait SchedulerSpec extends BeforeAndAfterEach with DefaultTimeout with Implicit
        * ticket #372
        */
       "be cancellable" taggedAs TimingTest in {
-        for (_ <- 1 to 10) system.scheduler.scheduleOnce(1 second, testActor, "fail").cancel()
+        for (_ <- 1 to 10) system.scheduler.scheduleOnce(1.second, testActor, "fail").cancel()
 
-        expectNoMessage(2 seconds)
+        expectNoMessage(2.seconds)
       }
 
       "be canceled if cancel is performed before execution" taggedAs TimingTest in {
-        val task = collectCancellable(system.scheduler.scheduleOnce(10 seconds)(()))
+        val task = collectCancellable(system.scheduler.scheduleOnce(10.seconds)(()))
         task.cancel() should ===(true)
         task.isCancelled should ===(true)
         task.cancel() should ===(false)
@@ -133,7 +133,7 @@ trait SchedulerSpec extends BeforeAndAfterEach with DefaultTimeout with Implicit
 
       "notify callback if cancel is performed before execution" taggedAs TimingTest in {
         val latch = new CountDownLatch(1)
-        val task = system.scheduler.scheduleOnce(100 millis,
+        val task = system.scheduler.scheduleOnce(100.millis,
           new SchedulerTask {
             override def run(): Unit = ()
             override def cancelled(): Unit = latch.countDown()
@@ -172,7 +172,7 @@ trait SchedulerSpec extends BeforeAndAfterEach with DefaultTimeout with Implicit
           Thread.sleep(5)
         }
 
-        Await.ready(ticks, 3 seconds)
+        Await.ready(ticks, 3.seconds)
       }
 
       "handle timeouts equal to multiple of wheel period" taggedAs TimingTest in {
@@ -374,7 +374,7 @@ trait SchedulerSpec extends BeforeAndAfterEach with DefaultTimeout with Implicit
           val pingLatch = new TestLatch(6)
 
           val supervisor =
-            system.actorOf(Props(new Supervisor(AllForOneStrategy(3, 1 second)(List(classOf[Exception])))))
+            system.actorOf(Props(new Supervisor(AllForOneStrategy(3, 1.second)(List(classOf[Exception])))))
           val props = Props(new Actor {
             def receive = {
               case Ping  => pingLatch.countDown()
@@ -391,9 +391,9 @@ trait SchedulerSpec extends BeforeAndAfterEach with DefaultTimeout with Implicit
             collectCancellable(system.scheduler.scheduleOnce(1000.millis, actor, Crash))
           }
 
-          Await.ready(restartLatch, 2 seconds)
+          Await.ready(restartLatch, 2.seconds)
           // should be enough time for the ping countdown to recover and reach 6 pings
-          Await.ready(pingLatch, 5 seconds)
+          Await.ready(pingLatch, 5.seconds)
         }
 
         "schedule with different initial delay and frequency" taggedAs TimingTest in {
@@ -406,8 +406,8 @@ trait SchedulerSpec extends BeforeAndAfterEach with DefaultTimeout with Implicit
           }))
 
           val startTime = System.nanoTime()
-          collectCancellable(scheduleAdapter.schedule(1 second, 300.millis, actor, Msg))
-          Await.ready(ticks, 3 seconds)
+          collectCancellable(scheduleAdapter.schedule(1.second, 300.millis, actor, Msg))
+          Await.ready(ticks, 3.seconds)
 
           // LARS is a bit more aggressive in scheduling recurring tasks at the right
           // frequency and may execute them a little earlier; the actual expected timing
@@ -810,7 +810,7 @@ class LightArrayRevolverSchedulerSpec extends PekkoSpec(SchedulerSpec.testConfRe
         time
       }
 
-      override protected def getShutdownTimeout: FiniteDuration = (10 seconds).dilated
+      override protected def getShutdownTimeout: FiniteDuration = 10.seconds.dilated
 
       override protected def waitNanos(ns: Long): Unit = {
         // println(s"waiting $ns")
diff --git a/actor-tests/src/test/scala/org/apache/pekko/actor/SupervisorHierarchySpec.scala b/actor-tests/src/test/scala/org/apache/pekko/actor/SupervisorHierarchySpec.scala
index 2ed576a222..3a5a5efaea 100644
--- a/actor-tests/src/test/scala/org/apache/pekko/actor/SupervisorHierarchySpec.scala
+++ b/actor-tests/src/test/scala/org/apache/pekko/actor/SupervisorHierarchySpec.scala
@@ -240,7 +240,7 @@ object SupervisorHierarchySpec {
       case (_, x) =>
         log :+= Event("unhandled exception from " + sender() + Logging.stackTraceFor(x), identityHashCode(this))
         sender() ! Dump(0)
-        context.system.scheduler.scheduleOnce(1 second, self, Dump(0))(context.dispatcher)
+        context.system.scheduler.scheduleOnce(1.second, self, Dump(0))(context.dispatcher)
         Resume
     })
 
@@ -477,7 +477,7 @@ object SupervisorHierarchySpec {
       case this.Event(Init, _) =>
         hierarchy = context.watch(
           context.actorOf(Props(new Hierarchy(size, breadth, self, 0, random)).withDispatcher("hierarchy"), "head"))
-        startSingleTimer("phase", StateTimeout, 5 seconds)
+        startSingleTimer("phase", StateTimeout, 5.seconds)
         goto(Init)
     }
 
@@ -646,7 +646,7 @@ object SupervisorHierarchySpec {
         goto(Failed)
     }
 
-    when(GC, stateTimeout = 10 seconds) {
+    when(GC, stateTimeout = 10.seconds) {
       case this.Event(GCcheck(weak), _) =>
         val next = weak.filter(_.get ne null)
         if (next.nonEmpty) {
@@ -793,7 +793,7 @@ class SupervisorHierarchySpec extends PekkoSpec(SupervisorHierarchySpec.config)
       val countDownMax = new CountDownLatch(1)
       val boss = system.actorOf(Props(new Actor {
         override val supervisorStrategy =
-          OneForOneStrategy(maxNrOfRetries = 1, withinTimeRange = 5 seconds)(List(classOf[Throwable]))
+          OneForOneStrategy(maxNrOfRetries = 1, withinTimeRange = 5.seconds)(List(classOf[Throwable]))
 
         val crasher = context.watch(
           context.actorOf(Props(new CountDownActor(countDownMessages, SupervisorStrategy.defaultStrategy))))
@@ -853,7 +853,7 @@ class SupervisorHierarchySpec extends PekkoSpec(SupervisorHierarchySpec.config)
         boss ! "fail"
         awaitCond(worker.asInstanceOf[LocalActorRef].underlying.mailbox.isSuspended)
         worker ! "ping"
-        expectNoMessage(2 seconds)
+        expectNoMessage(2.seconds)
         latch.countDown()
       }
       expectMsg("pong")
@@ -935,7 +935,7 @@ class SupervisorHierarchySpec extends PekkoSpec(SupervisorHierarchySpec.config)
 
       fsm ! Init
 
-      expectMsg(110 seconds, "stressTestSuccessful")
+      expectMsg(110.seconds, "stressTestSuccessful")
       expectMsg("stressTestStopped")
     }
   }
diff --git a/actor-tests/src/test/scala/org/apache/pekko/actor/SupervisorMiscSpec.scala b/actor-tests/src/test/scala/org/apache/pekko/actor/SupervisorMiscSpec.scala
index cb6941f62d..31380ff722 100644
--- a/actor-tests/src/test/scala/org/apache/pekko/actor/SupervisorMiscSpec.scala
+++ b/actor-tests/src/test/scala/org/apache/pekko/actor/SupervisorMiscSpec.scala
@@ -49,7 +49,7 @@ class SupervisorMiscSpec extends PekkoSpec(SupervisorMiscSpec.config) with Defau
         val countDownLatch = new CountDownLatch(4)
 
         val supervisor = system.actorOf(Props(
-          new Supervisor(OneForOneStrategy(maxNrOfRetries = 3, withinTimeRange = 5 seconds)(List(classOf[Exception])))))
+          new Supervisor(OneForOneStrategy(maxNrOfRetries = 3, withinTimeRange = 5.seconds)(List(classOf[Exception])))))
 
         val workerProps = Props(new Actor {
           override def postRestart(cause: Throwable): Unit = { countDownLatch.countDown() }
diff --git a/actor-tests/src/test/scala/org/apache/pekko/actor/SupervisorSpec.scala b/actor-tests/src/test/scala/org/apache/pekko/actor/SupervisorSpec.scala
index 22801ed2e1..049fb2b616 100644
--- a/actor-tests/src/test/scala/org/apache/pekko/actor/SupervisorSpec.scala
+++ b/actor-tests/src/test/scala/org/apache/pekko/actor/SupervisorSpec.scala
@@ -224,7 +224,7 @@ class SupervisorSpec
 
   def killExpectNoRestart(pingPongActor: ActorRef) = {
     val result = pingPongActor.?(DieReply)(DilatedTimeout)
-    expectNoMessage(500 milliseconds)
+    expectNoMessage(500.milliseconds)
     intercept[RuntimeException] { Await.result(result, DilatedTimeout) }
   }
 
@@ -234,8 +234,8 @@ class SupervisorSpec
       val master = system.actorOf(Props(new Master(testActor)))
 
       master ! Die
-      expectMsg(3 seconds, "terminated")
-      expectNoMessage(1 second)
+      expectMsg(3.seconds, "terminated")
+      expectNoMessage(1.second)
     }
 
     "restart properly when same instance is returned" in {
@@ -287,7 +287,7 @@ class SupervisorSpec
         expectMsg("postStop1")
       }
 
-      expectNoMessage(1 second)
+      expectNoMessage(1.second)
     }
 
     "not restart temporary actor" in {
@@ -295,13 +295,13 @@ class SupervisorSpec
 
       intercept[RuntimeException] { Await.result(temporaryActor.?(DieReply)(DilatedTimeout), DilatedTimeout) }
 
-      expectNoMessage(1 second)
+      expectNoMessage(1.second)
     }
 
     "start server for nested supervisor hierarchy" in {
       val (actor1, _, _, _) = nestedSupervisorsAllForOne
       ping(actor1)
-      expectNoMessage(1 second)
+      expectNoMessage(1.second)
     }
 
     "kill single actor OneForOne" in {
@@ -420,7 +420,7 @@ class SupervisorSpec
     "attempt restart when exception during restart" in {
       val inits = new AtomicInteger(0)
       val supervisor = system.actorOf(Props(
-        new Supervisor(OneForOneStrategy(maxNrOfRetries = 3, withinTimeRange = 10 seconds)(classOf[Exception] :: Nil))))
+        new Supervisor(OneForOneStrategy(maxNrOfRetries = 3, withinTimeRange = 10.seconds)(classOf[Exception] :: Nil))))
 
       val dyingProps = Props(new Actor {
         val init = inits.getAndIncrement()
@@ -467,7 +467,7 @@ class SupervisorSpec
         val child = context.watch(context.actorOf(Props(new Actor {
             override def postRestart(reason: Throwable): Unit = testActor ! "child restarted"
             def receive = {
-              case l: TestLatch => { Await.ready(l, 5 seconds); throw new IllegalStateException("OHNOES") }
+              case l: TestLatch => { Await.ready(l, 5.seconds); throw new IllegalStateException("OHNOES") }
               case "test"       => sender() ! "child green"
             }
           }), "child"))
@@ -589,7 +589,7 @@ class SupervisorSpec
 
   "treats maxNrOfRetries = -1 as maxNrOfRetries = 1 if withinTimeRange is non-infinite Duration" in {
     val supervisor = system.actorOf(Props(
-      new Supervisor(OneForOneStrategy(maxNrOfRetries = -1, withinTimeRange = 10 seconds)(classOf[Exception] :: Nil))))
+      new Supervisor(OneForOneStrategy(maxNrOfRetries = -1, withinTimeRange = 10.seconds)(classOf[Exception] :: Nil))))
 
     val pingpong = child(supervisor, Props(new PingPongActor(testActor)))
 
diff --git a/actor-tests/src/test/scala/org/apache/pekko/actor/SupervisorTreeSpec.scala b/actor-tests/src/test/scala/org/apache/pekko/actor/SupervisorTreeSpec.scala
index 6c442d9784..5e708aead3 100644
--- a/actor-tests/src/test/scala/org/apache/pekko/actor/SupervisorTreeSpec.scala
+++ b/actor-tests/src/test/scala/org/apache/pekko/actor/SupervisorTreeSpec.scala
@@ -28,10 +28,10 @@ class SupervisorTreeSpec extends PekkoSpec with ImplicitSender with DefaultTimeo
 
     "be able to kill the middle actor and see itself and its child restarted" in {
       EventFilter[ActorKilledException](occurrences = 1).intercept {
-        within(5 seconds) {
+        within(5.seconds) {
           val p = Props(new Actor {
             override val supervisorStrategy =
-              OneForOneStrategy(maxNrOfRetries = 3, withinTimeRange = 1 second)(List(classOf[Exception]))
+              OneForOneStrategy(maxNrOfRetries = 3, withinTimeRange = 1.second)(List(classOf[Exception]))
             def receive = {
               case p: Props => sender() ! context.actorOf(p)
             }
@@ -44,7 +44,7 @@ class SupervisorTreeSpec extends PekkoSpec with ImplicitSender with DefaultTimeo
           middleActor ! Kill
           expectMsg(middleActor.path)
           expectMsg(lastActor.path)
-          expectNoMessage(2 seconds)
+          expectNoMessage(2.seconds)
           system.stop(headActor)
         }
       }
diff --git a/actor-tests/src/test/scala/org/apache/pekko/actor/Ticket669Spec.scala b/actor-tests/src/test/scala/org/apache/pekko/actor/Ticket669Spec.scala
index dc298923d0..79f1ab47e3 100644
--- a/actor-tests/src/test/scala/org/apache/pekko/actor/Ticket669Spec.scala
+++ b/actor-tests/src/test/scala/org/apache/pekko/actor/Ticket669Spec.scala
@@ -38,7 +38,7 @@ class Ticket669Spec extends PekkoSpec with BeforeAndAfterAll with ImplicitSender
     "be able to reply on failure during preRestart" in {
       filterEvents(EventFilter[Exception]("test", occurrences = 1)) {
         val supervisor =
-          system.actorOf(Props(new Supervisor(AllForOneStrategy(5, 10 seconds)(List(classOf[Exception])))))
+          system.actorOf(Props(new Supervisor(AllForOneStrategy(5, 10.seconds)(List(classOf[Exception])))))
         val supervised = Await.result((supervisor ? Props[Supervised]()).mapTo[ActorRef], timeout.duration)
 
         supervised.!("test")(testActor)
diff --git a/actor-tests/src/test/scala/org/apache/pekko/actor/TypedActorSpec.scala b/actor-tests/src/test/scala/org/apache/pekko/actor/TypedActorSpec.scala
index 828fd86c51..1f32ed97f7 100644
--- a/actor-tests/src/test/scala/org/apache/pekko/actor/TypedActorSpec.scala
+++ b/actor-tests/src/test/scala/org/apache/pekko/actor/TypedActorSpec.scala
@@ -148,7 +148,7 @@ object TypedActorSpec {
 
     @nowarn
     def futureComposePigdogFrom(foo: Foo): Future[String] = {
-      foo.futurePigdog(500 millis).map(_.toUpperCase)
+      foo.futurePigdog(500.millis).map(_.toUpperCase)
     }
 
     def optionPigdog(): Option[String] = Some(pigdog())
@@ -360,7 +360,7 @@ class TypedActorSpec
 
     "be able to call Future-returning methods non-blockingly" in {
       val t = newFooBar
-      val f = t.futurePigdog(200 millis)
+      val f = t.futurePigdog(200.millis)
       f.isCompleted should ===(false)
       Await.result(f, timeout.duration) should ===("Pigdog")
       mustStop(t)
@@ -368,7 +368,7 @@ class TypedActorSpec
 
     "be able to call multiple Future-returning methods non-blockingly" in within(timeout.duration) {
       val t = newFooBar
-      val futures = for (i <- 1 to 20) yield (i, t.futurePigdog(20 millis, i))
+      val futures = for (i <- 1 to 20) yield (i, t.futurePigdog(20.millis, i))
       for ((i, f) <- futures) {
         Await.result(f, remaining) should ===("Pigdog" + i)
       }
@@ -376,22 +376,22 @@ class TypedActorSpec
     }
 
     "be able to call methods returning Java Options" taggedAs TimingTest in {
-      val t = newFooBar(1 second)
-      t.joptionPigdog(100 millis).get should ===("Pigdog")
-      t.joptionPigdog(2 seconds) should ===(JOption.none[String])
+      val t = newFooBar(1.second)
+      t.joptionPigdog(100.millis).get should ===("Pigdog")
+      t.joptionPigdog(2.seconds) should ===(JOption.none[String])
       mustStop(t)
     }
 
     "be able to handle AskTimeoutException as None" taggedAs TimingTest in {
-      val t = newFooBar(200 millis)
-      t.joptionPigdog(600 millis) should ===(JOption.none[String])
+      val t = newFooBar(200.millis)
+      t.joptionPigdog(600.millis) should ===(JOption.none[String])
       mustStop(t)
     }
 
     "be able to call methods returning Scala Options" taggedAs TimingTest in {
-      val t = newFooBar(1 second)
-      t.optionPigdog(100 millis).get should ===("Pigdog")
-      t.optionPigdog(2 seconds) should ===(None)
+      val t = newFooBar(1.second)
+      t.optionPigdog(100.millis).get should ===("Pigdog")
+      t.optionPigdog(2.seconds) should ===(None)
       mustStop(t)
     }
 
@@ -415,14 +415,14 @@ class TypedActorSpec
           }
         }))
         val t = Await.result(
-          (boss ? TypedProps[Bar](classOf[Foo], classOf[Bar]).withTimeout(2 seconds)).mapTo[Foo],
+          (boss ? TypedProps[Bar](classOf[Foo], classOf[Bar]).withTimeout(2.seconds)).mapTo[Foo],
           timeout.duration)
 
         t.incr()
         t.failingPigdog()
         t.read() should ===(1) // Make sure state is not reset after failure
 
-        intercept[IllegalStateException] { Await.result(t.failingFuturePigdog(), 2 seconds) }.getMessage should ===(
+        intercept[IllegalStateException] { Await.result(t.failingFuturePigdog(), 2.seconds) }.getMessage should ===(
           "expected")
         t.read() should ===(1) // Make sure state is not reset after failure
 
@@ -461,7 +461,7 @@ class TypedActorSpec
 
     "be able to support implementation only typed actors" in within(timeout.duration) {
       val t: Foo = pekko.actor.TypedActor(system).typedActorOf(TypedProps[Bar]())
-      val f = t.futurePigdog(200 millis)
+      val f = t.futurePigdog(200.millis)
       val f2 = t.futurePigdog(Duration.Zero)
       f2.isCompleted should ===(false)
       f.isCompleted should ===(false)
@@ -477,10 +477,10 @@ class TypedActorSpec
     }
 
     "be able to use balancing dispatcher" in within(timeout.duration) {
-      val thais = for (_ <- 1 to 60) yield newFooBar("pooled-dispatcher", 6 seconds)
+      val thais = for (_ <- 1 to 60) yield newFooBar("pooled-dispatcher", 6.seconds)
       val iterator = new CyclicIterator(thais)
 
-      val results = for (i <- 1 to 120) yield (i, iterator.next().futurePigdog(200 millis, i))
+      val results = for (i <- 1 to 120) yield (i, iterator.next().futurePigdog(200.millis, i))
 
       for ((i, r) <- results) Await.result(r, remaining) should ===("Pigdog" + i)
 
diff --git a/actor-tests/src/test/scala/org/apache/pekko/actor/dispatch/ActorModelSpec.scala b/actor-tests/src/test/scala/org/apache/pekko/actor/dispatch/ActorModelSpec.scala
index 1a64adbdc1..584208cf74 100644
--- a/actor-tests/src/test/scala/org/apache/pekko/actor/dispatch/ActorModelSpec.scala
+++ b/actor-tests/src/test/scala/org/apache/pekko/actor/dispatch/ActorModelSpec.scala
@@ -273,7 +273,7 @@ abstract class ActorModelSpec(config: String) extends PekkoSpec(config) with Def
     awaitCond(ref match {
         case r: RepointableRef => r.isStarted
         case _                 => true
-      }, 1 second, 10 millis)
+      }, 1.second, 10.millis)
   }
 
   protected def interceptedDispatcher(): MessageDispatcherInterceptor
@@ -322,7 +322,7 @@ abstract class ActorModelSpec(config: String) extends PekkoSpec(config) with Def
       a ! Wait(1000)
       a ! CountDown(oneAtATime)
       // in case of serialization violation, restart would happen instead of count down
-      assertCountDown(oneAtATime, (1.5 seconds).dilated.toMillis, "Processed message when allowed")
+      assertCountDown(oneAtATime, 1.5.seconds.dilated.toMillis, "Processed message when allowed")
       assertRefDefaultZero(a)(registers = 1, msgsReceived = 3, msgsProcessed = 3)
 
       system.stop(a)
@@ -389,7 +389,7 @@ abstract class ActorModelSpec(config: String) extends PekkoSpec(config) with Def
         val cachedMessage = CountDownNStop(new CountDownLatch(num))
         val stopLatch = new CountDownLatch(num)
         val keepAliveLatch = new CountDownLatch(1)
-        val waitTime = (20 seconds).dilated.toMillis
+        val waitTime = 20.seconds.dilated.toMillis
         val boss = system.actorOf(Props(new Actor {
           def receive = {
             case "run"         => for (_ <- 1 to num) context.watch(context.actorOf(props)) ! cachedMessage
diff --git a/actor-tests/src/test/scala/org/apache/pekko/actor/dispatch/DispatcherActorSpec.scala b/actor-tests/src/test/scala/org/apache/pekko/actor/dispatch/DispatcherActorSpec.scala
index 36eb3b875d..bf0a6b9cf9 100644
--- a/actor-tests/src/test/scala/org/apache/pekko/actor/dispatch/DispatcherActorSpec.scala
+++ b/actor-tests/src/test/scala/org/apache/pekko/actor/dispatch/DispatcherActorSpec.scala
@@ -112,7 +112,7 @@ class DispatcherActorSpec extends PekkoSpec(DispatcherActorSpec.config) with Def
     }
 
     "respect throughput deadline" in {
-      val deadline = 100 millis
+      val deadline = 100.millis
       val throughputDispatcher = "test-throughput-deadline-dispatcher"
 
       val works = new AtomicBoolean(true)
diff --git a/actor-tests/src/test/scala/org/apache/pekko/dataflow/Future2Actor.scala b/actor-tests/src/test/scala/org/apache/pekko/dataflow/Future2Actor.scala
index a7372d1d5a..f6f785c882 100644
--- a/actor-tests/src/test/scala/org/apache/pekko/dataflow/Future2Actor.scala
+++ b/actor-tests/src/test/scala/org/apache/pekko/dataflow/Future2Actor.scala
@@ -33,20 +33,20 @@ class Future2ActorSpec extends PekkoSpec with DefaultTimeout {
 
     "support convenient sending to multiple destinations" in {
       Future(42).pipeTo(testActor).pipeTo(testActor)
-      expectMsgAllOf(1 second, 42, 42)
+      expectMsgAllOf(1.second, 42, 42)
     }
 
     "support convenient sending to multiple destinations with implicit sender" in {
       implicit val someActor: ActorRef = system.actorOf(Props(new Actor { def receive = Actor.emptyBehavior }))
       Future(42).pipeTo(testActor).pipeTo(testActor)
-      expectMsgAllOf(1 second, 42, 42)
+      expectMsgAllOf(1.second, 42, 42)
       lastSender should ===(someActor)
     }
 
     "support convenient sending with explicit sender" in {
       val someActor = system.actorOf(Props(new Actor { def receive = Actor.emptyBehavior }))
       Future(42).to(testActor, someActor)
-      expectMsgAllOf(1 second, 42)
+      expectMsgAllOf(1.second, 42)
       lastSender should ===(someActor)
     }
 
diff --git a/actor-tests/src/test/scala/org/apache/pekko/dispatch/MailboxConfigSpec.scala b/actor-tests/src/test/scala/org/apache/pekko/dispatch/MailboxConfigSpec.scala
index 02ae1a5624..51330e36c6 100644
--- a/actor-tests/src/test/scala/org/apache/pekko/dispatch/MailboxConfigSpec.scala
+++ b/actor-tests/src/test/scala/org/apache/pekko/dispatch/MailboxConfigSpec.scala
@@ -51,11 +51,11 @@ abstract class MailboxSpec extends PekkoSpec with BeforeAndAfterAll with BeforeA
     }
 
     "BoundedMailbox.numberOfMessages should be consistent with queue size" in {
-      ensureSingleConsumerEnqueueDequeue(BoundedMailbox(1000, 10 milliseconds))
+      ensureSingleConsumerEnqueueDequeue(BoundedMailbox(1000, 10.milliseconds))
     }
 
     "create a bounded mailbox with 10 capacity and with push timeout" in {
-      val config = BoundedMailbox(10, 10 milliseconds)
+      val config = BoundedMailbox(10, 10.milliseconds)
       config.capacity should ===(10)
       val q = factory(config)
       ensureInitialMailboxState(config, q)
@@ -80,15 +80,15 @@ abstract class MailboxSpec extends PekkoSpec with BeforeAndAfterAll with BeforeA
     }
 
     "dequeue what was enqueued properly for bounded mailboxes" in {
-      testEnqueueDequeue(BoundedMailbox(10000, -1 millisecond))
+      testEnqueueDequeue(BoundedMailbox(10000, -1.millisecond))
     }
 
     "dequeue what was enqueued properly for bounded mailboxes with 0 pushTimeout" in {
-      testEnqueueDequeue(BoundedMailbox(10, 0 millisecond), 20, 10, false)
+      testEnqueueDequeue(BoundedMailbox(10, 0.millisecond), 20, 10, false)
     }
 
     "dequeue what was enqueued properly for bounded mailboxes with pushTimeout" in {
-      testEnqueueDequeue(BoundedMailbox(10000, 100 milliseconds))
+      testEnqueueDequeue(BoundedMailbox(10000, 100.milliseconds))
     }
   }
 
@@ -144,7 +144,7 @@ abstract class MailboxSpec extends PekkoSpec with BeforeAndAfterAll with BeforeA
       config: MailboxType,
       enqueueN: Int = 10000,
       dequeueN: Int = 10000,
-      parallel: Boolean = true): Unit = within(10 seconds) {
+      parallel: Boolean = true): Unit = within(10.seconds) {
     val q = factory(config)
     ensureInitialMailboxState(config, q)
 
@@ -260,7 +260,7 @@ class CustomMailboxSpec extends PekkoSpec(CustomMailboxSpec.config) {
       awaitCond(actor match {
           case r: RepointableRef => r.isStarted
           case _                 => true
-        }, 1 second, 10 millis)
+        }, 1.second, 10.millis)
       val queue = actor.asInstanceOf[ActorRefWithCell].underlying.asInstanceOf[ActorCell].mailbox.messageQueue
       queue.getClass should ===(classOf[CustomMailboxSpec.MyMailbox])
     }
diff --git a/actor-tests/src/test/scala/org/apache/pekko/dispatch/PriorityDispatcherSpec.scala b/actor-tests/src/test/scala/org/apache/pekko/dispatch/PriorityDispatcherSpec.scala
index 5eb6552cd6..b99a0fa559 100644
--- a/actor-tests/src/test/scala/org/apache/pekko/dispatch/PriorityDispatcherSpec.scala
+++ b/actor-tests/src/test/scala/org/apache/pekko/dispatch/PriorityDispatcherSpec.scala
@@ -48,7 +48,7 @@ object PriorityDispatcherSpec {
           case i: Int => i // Reverse order
           case Result => Int.MaxValue
           case _      => throw new RuntimeException() // compiler exhaustiveness check pleaser
-        }: Any => Int), 1000, 10 seconds)
+        }: Any => Int), 1000, 10.seconds)
 
 }
 
@@ -68,7 +68,7 @@ class PriorityDispatcherSpec extends PekkoSpec(PriorityDispatcherSpec.config) wi
   }
 
   def testOrdering(dispatcherKey: String): Unit = {
-    val msgs = (1 to 100) toList
+    val msgs = (1 to 100).toList
 
     // It's important that the actor under test is not a top level actor
     // with RepointableActorRef, since messages might be queued in
diff --git a/actor-tests/src/test/scala/org/apache/pekko/dispatch/StablePriorityDispatcherSpec.scala b/actor-tests/src/test/scala/org/apache/pekko/dispatch/StablePriorityDispatcherSpec.scala
index 88caa4c8fe..a23082b77b 100644
--- a/actor-tests/src/test/scala/org/apache/pekko/dispatch/StablePriorityDispatcherSpec.scala
+++ b/actor-tests/src/test/scala/org/apache/pekko/dispatch/StablePriorityDispatcherSpec.scala
@@ -49,7 +49,7 @@ object StablePriorityDispatcherSpec {
           case _: Int             => 101 // Don't care for other integers
           case Result             => Int.MaxValue
           case _                  => throw new RuntimeException() // compiler exhaustiveness check pleaser
-        }: Any => Int), 1000, 10 seconds)
+        }: Any => Int), 1000, 10.seconds)
 
 }
 
@@ -70,7 +70,7 @@ class StablePriorityDispatcherSpec extends PekkoSpec(StablePriorityDispatcherSpe
     }
 
     def testOrdering(dispatcherKey: String): Unit = {
-      val msgs = (1 to 200) toList
+      val msgs = (1 to 200).toList
       val shuffled = scala.util.Random.shuffle(msgs)
 
       // It's important that the actor under test is not a top level actor
@@ -100,7 +100,7 @@ class StablePriorityDispatcherSpec extends PekkoSpec(StablePriorityDispatcherSpe
 
       // Low messages should come out first, and in priority order.  High messages follow - they are equal priority and
       // should come out in the same order in which they were sent.
-      val lo = (1 to 100) toList
+      val lo = (1 to 100).toList
       val hi = shuffled.filter { _ > 100 }
       (expectMsgType[List[Int]]: List[Int]) should ===(lo ++ hi)
     }
diff --git a/actor-tests/src/test/scala/org/apache/pekko/event/LoggingReceiveSpec.scala b/actor-tests/src/test/scala/org/apache/pekko/event/LoggingReceiveSpec.scala
index 503c6842dd..8a739e042f 100644
--- a/actor-tests/src/test/scala/org/apache/pekko/event/LoggingReceiveSpec.scala
+++ b/actor-tests/src/test/scala/org/apache/pekko/event/LoggingReceiveSpec.scala
@@ -29,7 +29,7 @@ import pekko.util.ccompat.JavaConverters._
 object LoggingReceiveSpec {
   class TestLogActor extends Actor {
     override val supervisorStrategy =
-      OneForOneStrategy(maxNrOfRetries = 5, withinTimeRange = 5 seconds)(List(classOf[Throwable]))
+      OneForOneStrategy(maxNrOfRetries = 5, withinTimeRange = 5.seconds)(List(classOf[Throwable]))
     def receive = { case _ => }
   }
 }
@@ -85,12 +85,12 @@ class LoggingReceiveSpec extends AnyWordSpec with BeforeAndAfterAll {
         }))
         a ! "hallo"
         expectMsg(
-          1 second,
+          1.second,
           Logging.Debug(
             "funky",
             classOf[DummyClassForStringSources],
             "received unhandled message hallo from " + system.deadLetters))
-        expectMsgType[UnhandledMessage](1 second)
+        expectMsgType[UnhandledMessage](1.second)
       }
     }
 
@@ -206,7 +206,7 @@ class LoggingReceiveSpec extends AnyWordSpec with BeforeAndAfterAll {
     "log Supervision events if requested" in {
       new TestKit(appLifecycle) {
         system.eventStream.subscribe(testActor, classOf[Logging.Debug])
-        within(3 seconds) {
+        within(3.seconds) {
           val lifecycleGuardian = appLifecycle.asInstanceOf[ActorSystemImpl].guardian
           val lname = lifecycleGuardian.path.toString
           val supervisor = TestActorRef[TestLogActor](Props[TestLogActor]())
@@ -230,7 +230,7 @@ class LoggingReceiveSpec extends AnyWordSpec with BeforeAndAfterAll {
     "log DeathWatch events if requested" in {
       new TestKit(appLifecycle) {
         system.eventStream.subscribe(testActor, classOf[Logging.Debug])
-        within(3 seconds) {
+        within(3.seconds) {
           val supervisor = TestActorRef[TestLogActor](Props[TestLogActor]())
           val sclass = classOf[TestLogActor]
           val actor = TestActorRef[TestLogActor](Props[TestLogActor](), supervisor, "none")
@@ -255,7 +255,7 @@ class LoggingReceiveSpec extends AnyWordSpec with BeforeAndAfterAll {
       new TestKit(appLifecycle) {
         system.eventStream.subscribe(testActor, classOf[Logging.Debug])
         system.eventStream.subscribe(testActor, classOf[Logging.Error])
-        within(3 seconds) {
+        within(3.seconds) {
           val supervisor = TestActorRef[TestLogActor](Props[TestLogActor]())
           val sname = supervisor.path.toString
           val sclass = classOf[TestLogActor]
diff --git a/actor-tests/src/test/scala/org/apache/pekko/io/TcpIntegrationSpec.scala b/actor-tests/src/test/scala/org/apache/pekko/io/TcpIntegrationSpec.scala
index f02bb50bee..aca4627aeb 100644
--- a/actor-tests/src/test/scala/org/apache/pekko/io/TcpIntegrationSpec.scala
+++ b/actor-tests/src/test/scala/org/apache/pekko/io/TcpIntegrationSpec.scala
@@ -194,7 +194,7 @@ class TcpIntegrationSpec extends PekkoSpec("""
       connectCommander.expectMsgType[Connected].remoteAddress should ===(endpoint)
       val connectionActor = connectCommander.lastSender
       connectCommander.send(connectionActor, PoisonPill)
-      failAfter(3 seconds) {
+      failAfter(3.seconds) {
         try {
           accept.getInputStream.read() should ===(-1)
         } catch {
diff --git a/actor-tests/src/test/scala/org/apache/pekko/pattern/AskSpec.scala b/actor-tests/src/test/scala/org/apache/pekko/pattern/AskSpec.scala
index e84777167b..241ad9607d 100644
--- a/actor-tests/src/test/scala/org/apache/pekko/pattern/AskSpec.scala
+++ b/actor-tests/src/test/scala/org/apache/pekko/pattern/AskSpec.scala
@@ -41,7 +41,7 @@ class AskSpec extends PekkoSpec("""
     }
 
     "return broken promises on DeadLetters" in {
-      val f = system.deadLetters.ask(42)(1 second)
+      val f = system.deadLetters.ask(42)(1.second)
       f.isCompleted should ===(true)
       f.value.get match {
         case Failure(_: AskTimeoutException) =>
@@ -50,7 +50,7 @@ class AskSpec extends PekkoSpec("""
     }
 
     "return broken promises on EmptyLocalActorRefs" in {
-      implicit val timeout: Timeout = Timeout(5 seconds)
+      implicit val timeout: Timeout = Timeout(5.seconds)
       val empty = system.asInstanceOf[ExtendedActorSystem].provider.resolveActorRef("/user/unknown")
       val f = empty ? 3.14
       f.isCompleted should ===(true)
@@ -61,7 +61,7 @@ class AskSpec extends PekkoSpec("""
     }
 
     "return broken promises on unsupported ActorRefs" in {
-      implicit val timeout: Timeout = Timeout(5 seconds)
+      implicit val timeout: Timeout = Timeout(5.seconds)
       val f = ask(null: ActorRef, 3.14)
       f.isCompleted should ===(true)
 
@@ -72,7 +72,7 @@ class AskSpec extends PekkoSpec("""
     }
 
     "return broken promises on 0 timeout" in {
-      implicit val timeout: Timeout = Timeout(0 seconds)
+      implicit val timeout: Timeout = Timeout(0.seconds)
       val echo = system.actorOf(Props(new Actor { def receive = { case x => sender() ! x } }))
       val f = echo ? "foo"
       val expectedMsg =
@@ -83,7 +83,7 @@ class AskSpec extends PekkoSpec("""
     }
 
     "return broken promises on < 0 timeout" in {
-      implicit val timeout: Timeout = Timeout(-1000 seconds)
+      implicit val timeout: Timeout = Timeout(-1000.seconds)
       val echo = system.actorOf(Props(new Actor { def receive = { case x => sender() ! x } }))
       val f = echo ? "foo"
       val expectedMsg =
@@ -94,51 +94,51 @@ class AskSpec extends PekkoSpec("""
     }
 
     "include target information in AskTimeout" in {
-      implicit val timeout: Timeout = Timeout(0.5 seconds)
+      implicit val timeout: Timeout = Timeout(0.5.seconds)
       val silentOne = system.actorOf(Props.empty, "silent")
       val f = silentOne ? "noreply"
       intercept[AskTimeoutException] {
-        Await.result(f, 1 second)
+        Await.result(f, 1.second)
       }.getMessage.contains("/user/silent") should ===(true)
     }
 
     "include timeout information in AskTimeout" in {
-      implicit val timeout: Timeout = Timeout(0.5 seconds)
+      implicit val timeout: Timeout = Timeout(0.5.seconds)
       val f = system.actorOf(Props.empty) ? "noreply"
       intercept[AskTimeoutException] {
-        Await.result(f, 1 second)
+        Await.result(f, 1.second)
       }.getMessage should include(timeout.duration.toMillis.toString)
     }
 
     "include sender information in AskTimeout" in {
-      implicit val timeout: Timeout = Timeout(0.5 seconds)
+      implicit val timeout: Timeout = Timeout(0.5.seconds)
       implicit val sender: ActorRef = system.actorOf(Props.empty)
       val f = system.actorOf(Props.empty) ? "noreply"
       intercept[AskTimeoutException] {
-        Await.result(f, 1 second)
+        Await.result(f, 1.second)
       }.getMessage.contains(sender.toString) should ===(true)
     }
 
     "include message class information in AskTimeout" in {
-      implicit val timeout: Timeout = Timeout(0.5 seconds)
+      implicit val timeout: Timeout = Timeout(0.5.seconds)
       val f = system.actorOf(Props.empty) ? Integer.valueOf(17)
       intercept[AskTimeoutException] {
-        Await.result(f, 1 second)
+        Await.result(f, 1.second)
       }.getMessage should include("[java.lang.Integer")
     }
 
     "work for ActorSelection" in {
-      implicit val timeout: Timeout = Timeout(5 seconds)
+      implicit val timeout: Timeout = Timeout(5.seconds)
       import system.dispatcher
       val echo = system.actorOf(Props(new Actor { def receive = { case x => sender() ! x } }), "select-echo")
       val identityFuture =
         (system.actorSelection("/user/select-echo") ? Identify(None)).mapTo[ActorIdentity].map(_.ref.get)
 
-      Await.result(identityFuture, 5 seconds) should ===(echo)
+      Await.result(identityFuture, 5.seconds) should ===(echo)
     }
 
     "work when reply uses actor selection" in {
-      implicit val timeout: Timeout = Timeout(5 seconds)
+      implicit val timeout: Timeout = Timeout(5.seconds)
       val deadListener = TestProbe()
       system.eventStream.subscribe(deadListener.ref, classOf[DeadLetter])
 
@@ -147,13 +147,13 @@ class AskSpec extends PekkoSpec("""
         }), "select-echo2")
       val f = echo ? "hi"
 
-      Await.result(f, 1 seconds) should ===("hi")
+      Await.result(f, 1.seconds) should ===("hi")
 
-      deadListener.expectNoMessage(200 milliseconds)
+      deadListener.expectNoMessage(200.milliseconds)
     }
 
     "throw AskTimeoutException on using *" in {
-      implicit val timeout: Timeout = Timeout(0.5 seconds)
+      implicit val timeout: Timeout = Timeout(0.5.seconds)
       val deadListener = TestProbe()
       system.eventStream.subscribe(deadListener.ref, classOf[DeadLetter])
 
@@ -162,14 +162,14 @@ class AskSpec extends PekkoSpec("""
         "select-echo3")
       val f = echo ? "hi"
       intercept[AskTimeoutException] {
-        Await.result(f, 1 seconds)
+        Await.result(f, 1.seconds)
       }
 
-      deadListener.expectMsgClass(200 milliseconds, classOf[DeadLetter])
+      deadListener.expectMsgClass(200.milliseconds, classOf[DeadLetter])
     }
 
     "throw AskTimeoutException on using .." in {
-      implicit val timeout: Timeout = Timeout(0.5 seconds)
+      implicit val timeout: Timeout = Timeout(0.5.seconds)
       val deadListener = TestProbe()
       system.eventStream.subscribe(deadListener.ref, classOf[DeadLetter])
 
@@ -183,14 +183,14 @@ class AskSpec extends PekkoSpec("""
         }), "select-echo4")
       val f = echo ? "hi"
       intercept[AskTimeoutException] {
-        Await.result(f, 1 seconds) should ===("hi")
+        Await.result(f, 1.seconds) should ===("hi")
       }
 
-      deadListener.expectMsgClass(200 milliseconds, classOf[DeadLetter])
+      deadListener.expectMsgClass(200.milliseconds, classOf[DeadLetter])
     }
 
     "send to DeadLetter when child does not exist" in {
-      implicit val timeout: Timeout = Timeout(0.5 seconds)
+      implicit val timeout: Timeout = Timeout(0.5.seconds)
       val deadListener = TestProbe()
       system.eventStream.subscribe(deadListener.ref, classOf[DeadLetter])
 
@@ -203,13 +203,13 @@ class AskSpec extends PekkoSpec("""
         }), "select-echo5")
       val f = echo ? "hi"
       intercept[AskTimeoutException] {
-        Await.result(f, 1 seconds) should ===("hi")
+        Await.result(f, 1.seconds) should ===("hi")
       }
-      deadListener.expectMsgClass(200 milliseconds, classOf[DeadLetter])
+      deadListener.expectMsgClass(200.milliseconds, classOf[DeadLetter])
     }
 
     "send DeadLetter when answering to grandchild" in {
-      implicit val timeout: Timeout = Timeout(0.5 seconds)
+      implicit val timeout: Timeout = Timeout(0.5.seconds)
       val deadListener = TestProbe()
       system.eventStream.subscribe(deadListener.ref, classOf[DeadLetter])
 
@@ -221,13 +221,13 @@ class AskSpec extends PekkoSpec("""
         }), "select-echo6")
       val f = echo ? "hi"
       intercept[AskTimeoutException] {
-        Await.result(f, 1 seconds) should ===(ActorSelectionMessage("hi", Vector(SelectChildName("missing")), false))
+        Await.result(f, 1.seconds) should ===(ActorSelectionMessage("hi", Vector(SelectChildName("missing")), false))
       }
-      deadListener.expectMsgClass(200 milliseconds, classOf[DeadLetter])
+      deadListener.expectMsgClass(200.milliseconds, classOf[DeadLetter])
     }
 
     "allow watching the promiseActor and send Terminated() when completes" in {
-      implicit val timeout: Timeout = Timeout(300 millis)
+      implicit val timeout: Timeout = Timeout(300.millis)
       val p = TestProbe()
 
       val act = system.actorOf(Props(new Actor {
@@ -248,7 +248,7 @@ class AskSpec extends PekkoSpec("""
     }
 
     "encode target name in temporary actor name" in {
-      implicit val timeout: Timeout = Timeout(300 millis)
+      implicit val timeout: Timeout = Timeout(300.millis)
       val p = TestProbe()
 
       val act = system.actorOf(Props(new Actor {
@@ -268,7 +268,7 @@ class AskSpec extends PekkoSpec("""
     }
 
     "proper path when promise actor terminated" in {
-      implicit val timeout: Timeout = Timeout(300 millis)
+      implicit val timeout: Timeout = Timeout(300.millis)
       val p = TestProbe()
 
       val act = system.actorOf(Props(new Actor {
diff --git a/actor-tests/src/test/scala/org/apache/pekko/pattern/BackoffOnRestartSupervisorSpec.scala b/actor-tests/src/test/scala/org/apache/pekko/pattern/BackoffOnRestartSupervisorSpec.scala
index d739891d61..bba9667690 100644
--- a/actor-tests/src/test/scala/org/apache/pekko/pattern/BackoffOnRestartSupervisorSpec.scala
+++ b/actor-tests/src/test/scala/org/apache/pekko/pattern/BackoffOnRestartSupervisorSpec.scala
@@ -70,9 +70,9 @@ class BackoffOnRestartSupervisorSpec extends PekkoSpec("""
 
   def supervisorProps(probeRef: ActorRef) = {
     val options = BackoffOpts
-      .onFailure(TestActor.props(probeRef), "someChildName", 200 millis, 10 seconds, 0.0)
+      .onFailure(TestActor.props(probeRef), "someChildName", 200.millis, 10.seconds, 0.0)
       .withMaxNrOfRetries(-1)
-      .withSupervisorStrategy(OneForOneStrategy(maxNrOfRetries = 5, withinTimeRange = 30 seconds) {
+      .withSupervisorStrategy(OneForOneStrategy(maxNrOfRetries = 5, withinTimeRange = 30.seconds) {
         case _: TestActor.StoppingException => SupervisorStrategy.Stop
       })
     BackoffSupervisor.props(options)
@@ -105,23 +105,23 @@ class BackoffOnRestartSupervisorSpec extends PekkoSpec("""
         // Exponential back off restart test
         supervisor ! "THROW"
         // numRestart = 0: expected delay ~200 millis
-        probe.expectNoMessage(200 millis)
-        probe.expectMsg(250 millis, "STARTED")
+        probe.expectNoMessage(200.millis)
+        probe.expectMsg(250.millis, "STARTED")
 
         supervisor ! "THROW"
         // numRestart = 1: expected delay ~400 millis
-        probe.expectNoMessage(400 millis)
-        probe.expectMsg(250 millis, "STARTED")
+        probe.expectNoMessage(400.millis)
+        probe.expectMsg(250.millis, "STARTED")
 
         supervisor ! "THROW"
         // numRestart = 2: expected delay ~800 millis
-        probe.expectNoMessage(800 millis)
-        probe.expectMsg(250 millis, "STARTED")
+        probe.expectNoMessage(800.millis)
+        probe.expectMsg(250.millis, "STARTED")
 
         supervisor ! "THROW"
         // numRestart = 3: expected delay ~1600 millis
-        probe.expectNoMessage(1600 millis)
-        probe.expectMsg(250 millis, "STARTED")
+        probe.expectNoMessage(1600.millis)
+        probe.expectMsg(250.millis, "STARTED")
 
         // Verify that we only have one child at this point by selecting all the children
         // under the supervisor and broadcasting to them.
@@ -166,7 +166,7 @@ class BackoffOnRestartSupervisorSpec extends PekkoSpec("""
       val postStopLatch = new CountDownLatch(1)
       @nowarn
       val options = BackoffOpts
-        .onFailure(Props(new SlowlyFailingActor(postStopLatch)), "someChildName", 1 nanos, 1 nanos, 0.0)
+        .onFailure(Props(new SlowlyFailingActor(postStopLatch)), "someChildName", 1.nanos, 1.nanos, 0.0)
         .withMaxNrOfRetries(-1)
         .withSupervisorStrategy(OneForOneStrategy(loggingEnabled = false) {
           case _: TestActor.StoppingException => SupervisorStrategy.Stop
@@ -212,7 +212,7 @@ class BackoffOnRestartSupervisorSpec extends PekkoSpec("""
           if (i < 6) {
             // Since we should've died on this throw, don't expect to be started.
             // We're not testing timing, so set a reasonably high timeout.
-            probe.expectMsg(4 seconds, "STARTED")
+            probe.expectMsg(4.seconds, "STARTED")
           }
         }
         // Supervisor should've terminated.
@@ -228,7 +228,7 @@ class BackoffOnRestartSupervisorSpec extends PekkoSpec("""
       val options = BackoffOpts
         .onFailure(TestActor.props(probe.ref), "someChildName", 300.millis, 10.seconds, 0.0)
         .withMaxNrOfRetries(-1)
-        .withSupervisorStrategy(OneForOneStrategy(withinTimeRange = 1 seconds, maxNrOfRetries = 3) {
+        .withSupervisorStrategy(OneForOneStrategy(withinTimeRange = 1.seconds, maxNrOfRetries = 3) {
           case _: TestActor.StoppingException => SupervisorStrategy.Stop
         })
       val supervisor = system.actorOf(BackoffSupervisor.props(options))
diff --git a/actor-tests/src/test/scala/org/apache/pekko/pattern/CircuitBreakerSpec.scala b/actor-tests/src/test/scala/org/apache/pekko/pattern/CircuitBreakerSpec.scala
index e1c125eab8..26fdff6b78 100644
--- a/actor-tests/src/test/scala/org/apache/pekko/pattern/CircuitBreakerSpec.scala
+++ b/actor-tests/src/test/scala/org/apache/pekko/pattern/CircuitBreakerSpec.scala
@@ -119,7 +119,7 @@ class CircuitBreakerSpec extends PekkoSpec("""
     new Breaker(new CircuitBreaker(system.scheduler, 1, 1000.millis.dilated, shortResetTimeout))
 
   def longCallTimeoutCb()(implicit system: ActorSystem, ec: ExecutionContext): Breaker =
-    new Breaker(new CircuitBreaker(system.scheduler, 1, 5 seconds, 500.millis.dilated))
+    new Breaker(new CircuitBreaker(system.scheduler, 1, 5.seconds, 500.millis.dilated))
 
   val longResetTimeout = 5.seconds.dilated
   def longResetTimeoutCb()(implicit system: ActorSystem, ec: ExecutionContext): Breaker =
diff --git a/actor-tests/src/test/scala/org/apache/pekko/pattern/PatternSpec.scala b/actor-tests/src/test/scala/org/apache/pekko/pattern/PatternSpec.scala
index 3e70bc781d..9c20372ab3 100644
--- a/actor-tests/src/test/scala/org/apache/pekko/pattern/PatternSpec.scala
+++ b/actor-tests/src/test/scala/org/apache/pekko/pattern/PatternSpec.scala
@@ -41,21 +41,21 @@ class PatternSpec extends PekkoSpec {
 
     "provide Future for stopping an actor" in {
       val target = system.actorOf(Props[TargetActor]())
-      val result = gracefulStop(target, 5 seconds)
-      Await.result(result, 6 seconds) should ===(true)
+      val result = gracefulStop(target, 5.seconds)
+      Await.result(result, 6.seconds) should ===(true)
     }
 
     "complete Future when actor already terminated" in {
       val target = system.actorOf(Props[TargetActor]())
-      Await.ready(gracefulStop(target, 5 seconds), 6 seconds)
-      Await.ready(gracefulStop(target, 1 millis), 1 second)
+      Await.ready(gracefulStop(target, 5.seconds), 6.seconds)
+      Await.ready(gracefulStop(target, 1.millis), 1.second)
     }
 
     "complete Future with AskTimeoutException when actor not terminated within timeout" in {
       val target = system.actorOf(Props[TargetActor]())
       val latch = TestLatch()
       target ! ((latch, remainingOrDefault))
-      intercept[AskTimeoutException] { Await.result(gracefulStop(target, 500 millis), remainingOrDefault) }
+      intercept[AskTimeoutException] { Await.result(gracefulStop(target, 500.millis), remainingOrDefault) }
       latch.open()
     }
   }
@@ -63,7 +63,7 @@ class PatternSpec extends PekkoSpec {
   "pattern.after" must {
     "be completed successfully eventually" in {
       // TODO after is unfortunately shadowed by ScalaTest, fix as part of #3759
-      val f = pekko.pattern.after(1 second, using = system.scheduler)(Future.successful(5))
+      val f = pekko.pattern.after(1.second, using = system.scheduler)(Future.successful(5))
 
       val r = Future.firstCompletedOf(Seq(Promise[Int]().future, f))
       Await.result(r, remainingOrDefault) should ===(5)
@@ -72,7 +72,7 @@ class PatternSpec extends PekkoSpec {
     "be completed abnormally eventually" in {
       // TODO after is unfortunately shadowed by ScalaTest, fix as part of #3759
       val f =
-        pekko.pattern.after(1 second, using = system.scheduler)(Future.failed(new IllegalStateException("Mexico")))
+        pekko.pattern.after(1.second, using = system.scheduler)(Future.failed(new IllegalStateException("Mexico")))
 
       val r = Future.firstCompletedOf(Seq(Promise[Int]().future, f))
       intercept[IllegalStateException] { Await.result(r, remainingOrDefault) }.getMessage should ===("Mexico")
diff --git a/actor-tests/src/test/scala/org/apache/pekko/pattern/RetrySpec.scala b/actor-tests/src/test/scala/org/apache/pekko/pattern/RetrySpec.scala
index 5aa9e093c3..9696279019 100644
--- a/actor-tests/src/test/scala/org/apache/pekko/pattern/RetrySpec.scala
+++ b/actor-tests/src/test/scala/org/apache/pekko/pattern/RetrySpec.scala
@@ -30,9 +30,9 @@ class RetrySpec extends PekkoSpec with RetrySupport {
 
   "pattern.retry" must {
     "run a successful Future immediately" in {
-      val retried = retry(() => Future.successful(5), 5, 1 second)
+      val retried = retry(() => Future.successful(5), 5, 1.second)
 
-      within(3 seconds) {
+      within(3.seconds) {
         Await.result(retried, remaining) should ===(5)
       }
     }
@@ -46,17 +46,17 @@ class RetrySpec extends PekkoSpec with RetrySupport {
             counter
           },
         5,
-        1 second)
+        1.second)
 
-      within(3 seconds) {
+      within(3.seconds) {
         Await.result(retried, remaining) should ===(1)
       }
     }
 
     "eventually return a failure for a Future that will never succeed" in {
-      val retried = retry(() => Future.failed(new IllegalStateException("Mexico")), 5, 100 milliseconds)
+      val retried = retry(() => Future.failed(new IllegalStateException("Mexico")), 5, 100.milliseconds)
 
-      within(3 second) {
+      within(3.second) {
         intercept[IllegalStateException] { Await.result(retried, remaining) }.getMessage should ===("Mexico")
       }
     }
@@ -71,9 +71,9 @@ class RetrySpec extends PekkoSpec with RetrySupport {
         } else Future.successful(5)
       }
 
-      val retried = retry(() => attempt(), 10, 100 milliseconds)
+      val retried = retry(() => attempt(), 10, 100.milliseconds)
 
-      within(3 seconds) {
+      within(3.seconds) {
         Await.result(retried, remaining) should ===(5)
       }
     }
@@ -88,9 +88,9 @@ class RetrySpec extends PekkoSpec with RetrySupport {
         } else Future.successful(5)
       }
 
-      val retried = retry(() => attempt(), 5, 100 milliseconds)
+      val retried = retry(() => attempt(), 5, 100.milliseconds)
 
-      within(3 seconds) {
+      within(3.seconds) {
         intercept[IllegalStateException] { Await.result(retried, remaining) }.getMessage should ===("6")
       }
     }
@@ -111,7 +111,7 @@ class RetrySpec extends PekkoSpec with RetrySupport {
           attemptedCount = attempted
           Some(100.milliseconds * attempted)
         })
-      within(30000000 seconds) {
+      within(30000000.seconds) {
         intercept[IllegalStateException] { Await.result(retried, remaining) }.getMessage should ===("6")
         attemptedCount shouldBe 5
       }
@@ -129,7 +129,7 @@ class RetrySpec extends PekkoSpec with RetrySupport {
       val start = System.currentTimeMillis()
       val retried = retry(() => attempt(), 999)
 
-      within(1 seconds) {
+      within(1.seconds) {
         intercept[IllegalStateException] {
           Await.result(retried, remaining)
         }.getMessage should ===("1000")
@@ -148,9 +148,9 @@ class RetrySpec extends PekkoSpec with RetrySupport {
         } else Future.successful(5)
       }
 
-      val retried = retry(() => attempt(), 10, 100 milliseconds)
+      val retried = retry(() => attempt(), 10, 100.milliseconds)
 
-      within(3 seconds) {
+      within(3.seconds) {
         Await.result(retried, remaining) should ===(5)
       }
     }
@@ -161,9 +161,9 @@ class RetrySpec extends PekkoSpec with RetrySupport {
         Future.successful(counter.incrementAndGet())
       }
 
-      val retried = retry(() => attempt(), (t: Int, _) => t < 5, 10, 100 milliseconds)
+      val retried = retry(() => attempt(), (t: Int, _) => t < 5, 10, 100.milliseconds)
 
-      within(3 seconds) {
+      within(3.seconds) {
         Await.result(retried, remaining) should ===(5)
       }
     }
@@ -178,9 +178,9 @@ class RetrySpec extends PekkoSpec with RetrySupport {
       }
 
       val retried =
-        retry(() => attempt(), (_: Int, e) => !e.isInstanceOf[IllegalArgumentException], 10, 100 milliseconds)
+        retry(() => attempt(), (_: Int, e) => !e.isInstanceOf[IllegalArgumentException], 10, 100.milliseconds)
 
-      within(3 seconds) {
+      within(3.seconds) {
         retried.failed.futureValue shouldBe an[IllegalArgumentException]
         counter.get() should ===(1)
       }
diff --git a/actor-tests/src/test/scala/org/apache/pekko/routing/ConfiguredLocalRoutingSpec.scala b/actor-tests/src/test/scala/org/apache/pekko/routing/ConfiguredLocalRoutingSpec.scala
index 2e33fdbad4..f15f50e299 100644
--- a/actor-tests/src/test/scala/org/apache/pekko/routing/ConfiguredLocalRoutingSpec.scala
+++ b/actor-tests/src/test/scala/org/apache/pekko/routing/ConfiguredLocalRoutingSpec.scala
@@ -142,19 +142,19 @@ class ConfiguredLocalRoutingSpec
     "be picked up from Props" in {
       val actor = system.actorOf(RoundRobinPool(12).props(routeeProps = Props[EchoProps]()), "someOther")
       routerConfig(actor) should ===(RoundRobinPool(12))
-      Await.result(gracefulStop(actor, 3 seconds), 3 seconds)
+      Await.result(gracefulStop(actor, 3.seconds), 3.seconds)
     }
 
     "be overridable in config" in {
       val actor = system.actorOf(RoundRobinPool(12).props(routeeProps = Props[EchoProps]()), "config")
       routerConfig(actor) should ===(RandomPool(nrOfInstances = 4, usePoolDispatcher = true))
-      Await.result(gracefulStop(actor, 3 seconds), 3 seconds)
+      Await.result(gracefulStop(actor, 3.seconds), 3.seconds)
     }
 
     "use routees.paths from config" in {
       val actor = system.actorOf(RandomPool(12).props(routeeProps = Props[EchoProps]()), "paths")
       routerConfig(actor) should ===(RandomGroup(List("/user/service1", "/user/service2")))
-      Await.result(gracefulStop(actor, 3 seconds), 3 seconds)
+      Await.result(gracefulStop(actor, 3.seconds), 3.seconds)
     }
 
     "be overridable in explicit deployment" in {
@@ -162,7 +162,7 @@ class ConfiguredLocalRoutingSpec
         FromConfig.props(routeeProps = Props[EchoProps]()).withDeploy(Deploy(routerConfig = RoundRobinPool(12))),
         "someOther")
       routerConfig(actor) should ===(RoundRobinPool(12))
-      Await.result(gracefulStop(actor, 3 seconds), 3 seconds)
+      Await.result(gracefulStop(actor, 3.seconds), 3.seconds)
     }
 
     "be overridable in config even with explicit deployment" in {
@@ -170,7 +170,7 @@ class ConfiguredLocalRoutingSpec
         FromConfig.props(routeeProps = Props[EchoProps]()).withDeploy(Deploy(routerConfig = RoundRobinPool(12))),
         "config")
       routerConfig(actor) should ===(RandomPool(nrOfInstances = 4, usePoolDispatcher = true))
-      Await.result(gracefulStop(actor, 3 seconds), 3 seconds)
+      Await.result(gracefulStop(actor, 3.seconds), 3.seconds)
     }
 
     "fail with an exception if not correct" in {
@@ -185,7 +185,7 @@ class ConfiguredLocalRoutingSpec
       @nowarn
       val expc = Set('a', 'b', 'c').map(i => "/user/weird/$" + i)
       recv should ===(expc)
-      expectNoMessage(1 second)
+      expectNoMessage(1.second)
     }
 
     "support custom router" in {
diff --git a/actor-tests/src/test/scala/org/apache/pekko/routing/RandomSpec.scala b/actor-tests/src/test/scala/org/apache/pekko/routing/RandomSpec.scala
index f99cf9b600..4f476db828 100644
--- a/actor-tests/src/test/scala/org/apache/pekko/routing/RandomSpec.scala
+++ b/actor-tests/src/test/scala/org/apache/pekko/routing/RandomSpec.scala
@@ -48,12 +48,12 @@ class RandomSpec extends PekkoSpec with DefaultTimeout with ImplicitSender {
       actor ! "hello"
       actor ! "hello"
 
-      within(2 seconds) {
+      within(2.seconds) {
         for (_ <- 1 to 5) expectMsg("world")
       }
 
       system.stop(actor)
-      Await.ready(stopLatch, 5 seconds)
+      Await.ready(stopLatch, 5.seconds)
     }
 
     "deliver messages in a random fashion" in {
@@ -85,7 +85,7 @@ class RandomSpec extends PekkoSpec with DefaultTimeout with ImplicitSender {
       counter.get should ===(connectionCount)
 
       actor ! pekko.routing.Broadcast("end")
-      Await.ready(doneLatch, 5 seconds)
+      Await.ready(doneLatch, 5.seconds)
 
       replies.values.foreach { _ should be > 0 }
       replies.values.sum should ===(iterationCount * connectionCount)
@@ -106,10 +106,10 @@ class RandomSpec extends PekkoSpec with DefaultTimeout with ImplicitSender {
         })), "random-broadcast")
 
       actor ! pekko.routing.Broadcast("hello")
-      Await.ready(helloLatch, 5 seconds)
+      Await.ready(helloLatch, 5.seconds)
 
       system.stop(actor)
-      Await.ready(stopLatch, 5 seconds)
+      Await.ready(stopLatch, 5.seconds)
     }
   }
 }
diff --git a/actor-tests/src/test/scala/org/apache/pekko/routing/ResizerSpec.scala b/actor-tests/src/test/scala/org/apache/pekko/routing/ResizerSpec.scala
index 7524ab6f23..85ba5593a0 100644
--- a/actor-tests/src/test/scala/org/apache/pekko/routing/ResizerSpec.scala
+++ b/actor-tests/src/test/scala/org/apache/pekko/routing/ResizerSpec.scala
@@ -205,15 +205,15 @@ class ResizerSpec extends PekkoSpec(ResizerSpec.config) with DefaultTimeout with
       }
 
       // 2 more should go through without triggering more
-      loop(2, 200 millis)
+      loop(2, 200.millis)
       routeeSize(router) should ===(resizer.lowerBound)
 
       // a whole bunch should max it out
-      loop(20, 500 millis)
+      loop(20, 500.millis)
       routeeSize(router) should ===(resizer.upperBound)
     }
 
-    "backoff" in within(10 seconds) {
+    "backoff" in within(10.seconds) {
       val resizer = DefaultResizer(
         lowerBound = 2,
         upperBound = 5,
@@ -226,25 +226,25 @@ class ResizerSpec extends PekkoSpec(ResizerSpec.config) with DefaultTimeout with
       val router = system.actorOf(RoundRobinPool(nrOfInstances = 0, resizer = Some(resizer)).props(Props(new Actor {
         def receive = {
           case n: Int if n <= 0 => // done
-          case n: Int           => Thread.sleep((n millis).dilated.toMillis)
+          case n: Int           => Thread.sleep(n.millis.dilated.toMillis)
         }
       })))
 
       // put some pressure on the router
       for (_ <- 0 until 15) {
         router ! 150
-        Thread.sleep((20 millis).dilated.toMillis)
+        Thread.sleep(20.millis.dilated.toMillis)
       }
 
       val z = routeeSize(router)
       z should be > 2
 
-      Thread.sleep((300 millis).dilated.toMillis)
+      Thread.sleep(300.millis.dilated.toMillis)
 
       // let it cool down
       awaitCond({
           router ! 0 // trigger resize
-          Thread.sleep((20 millis).dilated.toMillis)
+          Thread.sleep(20.millis.dilated.toMillis)
           routeeSize(router) < z
         }, interval = 500.millis.dilated)
 
diff --git a/actor-tests/src/test/scala/org/apache/pekko/routing/RoundRobinSpec.scala b/actor-tests/src/test/scala/org/apache/pekko/routing/RoundRobinSpec.scala
index 1f7b1c5d24..0a318d4135 100644
--- a/actor-tests/src/test/scala/org/apache/pekko/routing/RoundRobinSpec.scala
+++ b/actor-tests/src/test/scala/org/apache/pekko/routing/RoundRobinSpec.scala
@@ -54,10 +54,10 @@ class RoundRobinSpec extends PekkoSpec with DefaultTimeout with ImplicitSender {
       actor ! "hello"
       actor ! "hello"
       actor ! "hello"
-      Await.ready(helloLatch, 5 seconds)
+      Await.ready(helloLatch, 5.seconds)
 
       system.stop(actor)
-      Await.ready(stopLatch, 5 seconds)
+      Await.ready(stopLatch, 5.seconds)
     }
 
     "deliver messages in a round robin fashion" in {
@@ -84,7 +84,7 @@ class RoundRobinSpec extends PekkoSpec with DefaultTimeout with ImplicitSender {
       counter.get should ===(connectionCount)
 
       actor ! pekko.routing.Broadcast("end")
-      Await.ready(doneLatch, 5 seconds)
+      Await.ready(doneLatch, 5.seconds)
 
       replies.values.foreach { _ should ===(iterationCount) }
     }
@@ -104,10 +104,10 @@ class RoundRobinSpec extends PekkoSpec with DefaultTimeout with ImplicitSender {
         })), "round-robin-broadcast")
 
       actor ! pekko.routing.Broadcast("hello")
-      Await.ready(helloLatch, 5 seconds)
+      Await.ready(helloLatch, 5.seconds)
 
       system.stop(actor)
-      Await.ready(stopLatch, 5 seconds)
+      Await.ready(stopLatch, 5.seconds)
     }
 
     "be controlled with management messages" in {
@@ -156,7 +156,7 @@ class RoundRobinSpec extends PekkoSpec with DefaultTimeout with ImplicitSender {
       }
 
       actor ! pekko.routing.Broadcast("end")
-      Await.ready(doneLatch, 5 seconds)
+      Await.ready(doneLatch, 5.seconds)
 
       replies.values.foreach { _ should ===(iterationCount) }
     }
diff --git a/actor-tests/src/test/scala/org/apache/pekko/routing/RoutingSpec.scala b/actor-tests/src/test/scala/org/apache/pekko/routing/RoutingSpec.scala
index 893387ea92..b783e4fae6 100644
--- a/actor-tests/src/test/scala/org/apache/pekko/routing/RoutingSpec.scala
+++ b/actor-tests/src/test/scala/org/apache/pekko/routing/RoutingSpec.scala
@@ -79,7 +79,7 @@ class RoutingSpec extends PekkoSpec(RoutingSpec.config) with DefaultTimeout with
       awaitCond {
         router ! ""
         router ! ""
-        val res = receiveWhile(100 millis, messages = 2) {
+        val res = receiveWhile(100.millis, messages = 2) {
           case x: ActorRef => x
         }
         res == Seq(c1, c1)
diff --git a/actor-tests/src/test/scala/org/apache/pekko/serialization/SerializeSpec.scala b/actor-tests/src/test/scala/org/apache/pekko/serialization/SerializeSpec.scala
index 3a5cc4adef..24cb453c79 100644
--- a/actor-tests/src/test/scala/org/apache/pekko/serialization/SerializeSpec.scala
+++ b/actor-tests/src/test/scala/org/apache/pekko/serialization/SerializeSpec.scala
@@ -307,7 +307,7 @@ class SerializeSpec extends PekkoSpec(SerializationTests.serializeConf) {
 }
 
 class VerifySerializabilitySpec extends PekkoSpec(SerializationTests.verifySerializabilityConf) {
-  implicit val timeout: Timeout = Timeout(5 seconds)
+  implicit val timeout: Timeout = Timeout(5.seconds)
 
   "verify config" in {
     system.settings.SerializeAllCreators should ===(true)
diff --git a/actor-tests/src/test/scala/org/apache/pekko/util/DurationSpec.scala b/actor-tests/src/test/scala/org/apache/pekko/util/DurationSpec.scala
index 366fc74348..e18a95ffa2 100644
--- a/actor-tests/src/test/scala/org/apache/pekko/util/DurationSpec.scala
+++ b/actor-tests/src/test/scala/org/apache/pekko/util/DurationSpec.scala
@@ -24,8 +24,8 @@ class DurationSpec extends PekkoSpec {
   "Duration" must {
 
     "form a one-dimensional vector field" in {
-      val zero = 0 seconds
-      val one = 1 second
+      val zero = 0.seconds
+      val one = 1.second
       val two = one + one
       val three = 3 * one
       (0 * one) should ===(zero)
@@ -96,11 +96,11 @@ class DurationSpec extends PekkoSpec {
       val dead = 2.seconds.fromNow
       val dead2 = 2.seconds(fromNow)
       // view bounds vs. very local type inference vs. operator precedence: sigh
-      dead.timeLeft should be > (1 second: Duration)
-      dead2.timeLeft should be > (1 second: Duration)
+      dead.timeLeft should be > (1.second: Duration)
+      dead2.timeLeft should be > (1.second: Duration)
       Thread.sleep(1.second.toMillis)
-      dead.timeLeft should be < (1 second: Duration)
-      dead2.timeLeft should be < (1 second: Duration)
+      dead.timeLeft should be < (1.second: Duration)
+      dead2.timeLeft should be < (1.second: Duration)
     }
 
   }
diff --git a/actor-typed-tests/src/test/scala/org/apache/pekko/actor/typed/delivery/TestConsumer.scala b/actor-typed-tests/src/test/scala/org/apache/pekko/actor/typed/delivery/TestConsumer.scala
index d7681948ab..fd565d095f 100644
--- a/actor-typed-tests/src/test/scala/org/apache/pekko/actor/typed/delivery/TestConsumer.scala
+++ b/actor-typed-tests/src/test/scala/org/apache/pekko/actor/typed/delivery/TestConsumer.scala
@@ -113,8 +113,7 @@ class TestConsumer(
         case job @ SomeAsyncJob(_, confirmTo, producerId, seqNr) =>
           // when replacing producer the seqNr may start from 1 again
           val cleanProcessed =
-            if (seqNr == 1L) processed.filterNot { case (pid, _) => pid == producerId }
-            else processed
+            if (seqNr == 1L) processed.filterNot { case (pid, _) => pid == producerId } else processed
 
           if (cleanProcessed((producerId, seqNr)))
             throw new RuntimeException(s"Received duplicate [($producerId,$seqNr)]")
diff --git a/actor/src/main/scala/org/apache/pekko/io/DirectByteBufferPool.scala b/actor/src/main/scala/org/apache/pekko/io/DirectByteBufferPool.scala
index e8902db9d8..b0efe71a4a 100644
--- a/actor/src/main/scala/org/apache/pekko/io/DirectByteBufferPool.scala
+++ b/actor/src/main/scala/org/apache/pekko/io/DirectByteBufferPool.scala
@@ -100,7 +100,9 @@ private[pekko] object DirectByteBufferPool {
             val cleaner = cleanerMethod.invoke(bb)
             cleanMethod.invoke(cleaner)
           }
-        catch { case NonFatal(_) => /* ok, best effort attempt to cleanup failed */ }
+        catch {
+          case NonFatal(_) => /* ok, best effort attempt to cleanup failed */
+        }
       }
     } catch { case NonFatal(_) => _ => () /* reflection failed, use no-op fallback */ }
 
diff --git a/cluster-metrics/src/main/scala/org/apache/pekko/cluster/metrics/Provision.scala b/cluster-metrics/src/main/scala/org/apache/pekko/cluster/metrics/Provision.scala
index 7af138a738..be84f8928f 100644
--- a/cluster-metrics/src/main/scala/org/apache/pekko/cluster/metrics/Provision.scala
+++ b/cluster-metrics/src/main/scala/org/apache/pekko/cluster/metrics/Provision.scala
@@ -81,7 +81,7 @@ trait SigarProvider {
     })
       .recover {
         case e: Throwable => throw new RuntimeException("Failed to load sigar:", e)
-      } get
+      }.get
   }
 
 }
diff --git a/cluster-metrics/src/multi-jvm/scala/org/apache/pekko/cluster/metrics/ClusterMetricsExtensionSpec.scala b/cluster-metrics/src/multi-jvm/scala/org/apache/pekko/cluster/metrics/ClusterMetricsExtensionSpec.scala
index a772dd2d17..727bda2147 100644
--- a/cluster-metrics/src/multi-jvm/scala/org/apache/pekko/cluster/metrics/ClusterMetricsExtensionSpec.scala
+++ b/cluster-metrics/src/multi-jvm/scala/org/apache/pekko/cluster/metrics/ClusterMetricsExtensionSpec.scala
@@ -113,7 +113,7 @@ abstract class ClusterMetricsEnabledSpec
 
   "Cluster metrics" must {
     "periodically collect metrics on each node, publish to the event stream, " +
-    "and gossip metrics around the node ring" in within(60 seconds) {
+    "and gossip metrics around the node ring" in within(60.seconds) {
       awaitClusterUp(roles: _*)
       enterBarrier("cluster-started")
       awaitAssert(clusterView.members.count(_.status == MemberStatus.Up) should ===(roles.size))
@@ -124,7 +124,7 @@ abstract class ClusterMetricsEnabledSpec
       collector.sample().metrics.size should be > 3
       enterBarrier("after")
     }
-    "reflect the correct number of node metrics in cluster view" in within(30 seconds) {
+    "reflect the correct number of node metrics in cluster view" in within(30.seconds) {
       runOn(node2) {
         cluster.leave(node1)
       }
diff --git a/cluster-metrics/src/multi-jvm/scala/org/apache/pekko/cluster/metrics/ClusterMetricsRoutingSpec.scala b/cluster-metrics/src/multi-jvm/scala/org/apache/pekko/cluster/metrics/ClusterMetricsRoutingSpec.scala
index 62da2a0f6d..81eb4129e7 100644
--- a/cluster-metrics/src/multi-jvm/scala/org/apache/pekko/cluster/metrics/ClusterMetricsRoutingSpec.scala
+++ b/cluster-metrics/src/multi-jvm/scala/org/apache/pekko/cluster/metrics/ClusterMetricsRoutingSpec.scala
@@ -143,7 +143,7 @@ abstract class AdaptiveLoadBalancingRouterSpec
 
   def receiveReplies(expectedReplies: Int): Map[Address, Int] = {
     val zero = Map.empty[Address, Int] ++ roles.map(address(_) -> 0)
-    receiveWhile(5 seconds, messages = expectedReplies) {
+    receiveWhile(5.seconds, messages = expectedReplies) {
       case Reply(address) => address
     }.foldLeft(zero) {
       case (replyMap, address) => replyMap + (address -> (replyMap(address) + 1))
diff --git a/cluster-metrics/src/multi-jvm/scala/org/apache/pekko/cluster/metrics/sample/StatsSampleSpec.scala b/cluster-metrics/src/multi-jvm/scala/org/apache/pekko/cluster/metrics/sample/StatsSampleSpec.scala
index 05376e313c..eec1bc235e 100644
--- a/cluster-metrics/src/multi-jvm/scala/org/apache/pekko/cluster/metrics/sample/StatsSampleSpec.scala
+++ b/cluster-metrics/src/multi-jvm/scala/org/apache/pekko/cluster/metrics/sample/StatsSampleSpec.scala
@@ -104,7 +104,7 @@ abstract class StatsSampleSpec
   "The stats sample" must {
 
     // #startup-cluster
-    "illustrate how to startup cluster" in within(15 seconds) {
+    "illustrate how to startup cluster" in within(15.seconds) {
       Cluster(system).subscribe(testActor, classOf[MemberUp])
       expectMsgClass(classOf[CurrentClusterState])
 
@@ -131,7 +131,7 @@ abstract class StatsSampleSpec
     // #startup-cluster
 
     // #test-statsService
-    "show usage of the statsService from one node" in within(15 seconds) {
+    "show usage of the statsService from one node" in within(15.seconds) {
       runOn(second) {
         assertServiceOk()
       }
@@ -151,7 +151,7 @@ abstract class StatsSampleSpec
     }
     // #test-statsService
 
-    "show usage of the statsService from all nodes" in within(15 seconds) {
+    "show usage of the statsService from all nodes" in within(15.seconds) {
       assertServiceOk()
       testConductor.enter("done-3")
     }
diff --git a/cluster-metrics/src/test/scala/org/apache/pekko/cluster/metrics/ClusterMetricsExtensionSpec.scala b/cluster-metrics/src/test/scala/org/apache/pekko/cluster/metrics/ClusterMetricsExtensionSpec.scala
index f9532a2e7a..1da1efce1a 100644
--- a/cluster-metrics/src/test/scala/org/apache/pekko/cluster/metrics/ClusterMetricsExtensionSpec.scala
+++ b/cluster-metrics/src/test/scala/org/apache/pekko/cluster/metrics/ClusterMetricsExtensionSpec.scala
@@ -54,11 +54,11 @@ class ClusterMetricsExtensionSpec
 
     "collect metrics after start command" in {
       extension.supervisor ! CollectionStartMessage
-      awaitAssert(metricsNodeCount should ===(nodeCount), 15 seconds)
+      awaitAssert(metricsNodeCount should ===(nodeCount), 15.seconds)
     }
 
     "collect mock sample during a time window" in {
-      awaitAssert(metricsHistorySize should ===(sampleCount), 15 seconds)
+      awaitAssert(metricsHistorySize should ===(sampleCount), 15.seconds)
       extension.supervisor ! CollectionStopMessage
       awaitSample()
       metricsNodeCount should ===(nodeCount)
diff --git a/cluster-metrics/src/test/scala/org/apache/pekko/cluster/metrics/ClusterMetricsSettingsSpec.scala b/cluster-metrics/src/test/scala/org/apache/pekko/cluster/metrics/ClusterMetricsSettingsSpec.scala
index a8622f72e4..9640d30528 100644
--- a/cluster-metrics/src/test/scala/org/apache/pekko/cluster/metrics/ClusterMetricsSettingsSpec.scala
+++ b/cluster-metrics/src/test/scala/org/apache/pekko/cluster/metrics/ClusterMetricsSettingsSpec.scala
@@ -32,7 +32,7 @@ class ClusterMetricsSettingsSpec extends PekkoSpec {
 
       // Extension.
       MetricsDispatcher should ===(Dispatchers.DefaultDispatcherId)
-      PeriodicTasksInitialDelay should ===(1 second)
+      PeriodicTasksInitialDelay should ===(1.second)
       NativeLibraryExtractFolder should ===(System.getProperty("user.dir") + "/native")
 
       // Supervisor.
@@ -44,9 +44,9 @@ class ClusterMetricsSettingsSpec extends PekkoSpec {
       // Collector.
       CollectorEnabled should ===(true)
       CollectorProvider should ===("")
-      CollectorSampleInterval should ===(3 seconds)
-      CollectorGossipInterval should ===(3 seconds)
-      CollectorMovingAverageHalfLife should ===(12 seconds)
+      CollectorSampleInterval should ===(3.seconds)
+      CollectorGossipInterval should ===(3.seconds)
+      CollectorMovingAverageHalfLife should ===(12.seconds)
     }
   }
 }
diff --git a/cluster-metrics/src/test/scala/org/apache/pekko/cluster/metrics/MetricsCollectorSpec.scala b/cluster-metrics/src/test/scala/org/apache/pekko/cluster/metrics/MetricsCollectorSpec.scala
index 276db67891..83bd81c059 100644
--- a/cluster-metrics/src/test/scala/org/apache/pekko/cluster/metrics/MetricsCollectorSpec.scala
+++ b/cluster-metrics/src/test/scala/org/apache/pekko/cluster/metrics/MetricsCollectorSpec.scala
@@ -103,7 +103,7 @@ class MetricsCollectorSpec
       c.processors.isDefined should ===(true)
     }
 
-    "collect 50 node metrics samples in an acceptable duration" taggedAs LongRunningTest in within(10 seconds) {
+    "collect 50 node metrics samples in an acceptable duration" taggedAs LongRunningTest in within(10.seconds) {
       (1 to 50).foreach { _ =>
         val sample = collector.sample()
         sample.metrics.size should be >= 3
diff --git a/cluster-metrics/src/test/scala/org/apache/pekko/cluster/metrics/TestUtil.scala b/cluster-metrics/src/test/scala/org/apache/pekko/cluster/metrics/TestUtil.scala
index 8b19504066..672d5fece1 100644
--- a/cluster-metrics/src/test/scala/org/apache/pekko/cluster/metrics/TestUtil.scala
+++ b/cluster-metrics/src/test/scala/org/apache/pekko/cluster/metrics/TestUtil.scala
@@ -80,7 +80,7 @@ case class MockitoSigarProvider(
   /** Generate monotonic array from 0 to value. */
   def increase(value: Double): Array[Double] = {
     val delta = value / steps
-    (0 to steps).map { _ * delta } toArray
+    (0 to steps).map { _ * delta }.toArray
   }
 
   /** Sigar mock instance. */
diff --git a/cluster-sharding/src/multi-jvm/scala/org/apache/pekko/cluster/sbr/RandomizedBrainResolverIntegrationSpec.scala b/cluster-sharding/src/multi-jvm/scala/org/apache/pekko/cluster/sbr/RandomizedBrainResolverIntegrationSpec.scala
index 0672f41223..39ca53bb23 100644
--- a/cluster-sharding/src/multi-jvm/scala/org/apache/pekko/cluster/sbr/RandomizedBrainResolverIntegrationSpec.scala
+++ b/cluster-sharding/src/multi-jvm/scala/org/apache/pekko/cluster/sbr/RandomizedBrainResolverIntegrationSpec.scala
@@ -312,7 +312,9 @@ class RandomizedSplitBrainResolverIntegrationSpec
             (if (cleanSplit)
                s"side1 [${side1.map(_.name).mkString(", ")}], side2 [${side2.map(_.name).mkString(", ")}] "
              else " ") +
-            s", flaky [${flaky.map { case (_, (from, to)) => from.name -> to.map(_.name).mkString("(", ", ", ")") }.mkString("; ")}] " +
+            s", flaky [${flaky.map { case (_, (from, to)) =>
+                from.name -> to.map(_.name).mkString("(", ", ", ")")
+              }.mkString("; ")}] " +
             s", healLastFlaky [$healLastFlaky] " +
             s", delays [${delays.mkString(", ")}]")
 
diff --git a/cluster-sharding/src/multi-jvm/scala/org/apache/pekko/cluster/sharding/ClusterShardingSpec.scala b/cluster-sharding/src/multi-jvm/scala/org/apache/pekko/cluster/sharding/ClusterShardingSpec.scala
index 5adffa7f22..cc166cdebb 100644
--- a/cluster-sharding/src/multi-jvm/scala/org/apache/pekko/cluster/sharding/ClusterShardingSpec.scala
+++ b/cluster-sharding/src/multi-jvm/scala/org/apache/pekko/cluster/sharding/ClusterShardingSpec.scala
@@ -430,7 +430,7 @@ abstract class ClusterShardingSpec(multiNodeConfig: ClusterShardingSpecConfig)
       enterBarrier("after-1")
     }
 
-    "work in single node cluster" in within(20 seconds) {
+    "work in single node cluster" in within(20.seconds) {
       join(first, first)
 
       runOn(first) {
@@ -448,7 +448,7 @@ abstract class ClusterShardingSpec(multiNodeConfig: ClusterShardingSpecConfig)
       enterBarrier("after-2")
     }
 
-    "use second node" in within(20 seconds) {
+    "use second node" in within(20.seconds) {
       join(second, first)
 
       runOn(second) {
@@ -534,7 +534,7 @@ abstract class ClusterShardingSpec(multiNodeConfig: ClusterShardingSpecConfig)
       enterBarrier("after-5")
     }
 
-    "failover shards on crashed node" in within(30 seconds) {
+    "failover shards on crashed node" in within(30.seconds) {
       // mute logging of deadLetters during shutdown of systems
       if (!log.isDebugEnabled)
         system.eventStream.publish(Mute(DeadLettersFilter[Any]))
@@ -567,7 +567,7 @@ abstract class ClusterShardingSpec(multiNodeConfig: ClusterShardingSpecConfig)
       enterBarrier("after-6")
     }
 
-    "use third and fourth node" in within(15 seconds) {
+    "use third and fourth node" in within(15.seconds) {
       join(third, first)
 
       runOn(third) {
@@ -618,7 +618,7 @@ abstract class ClusterShardingSpec(multiNodeConfig: ClusterShardingSpecConfig)
       enterBarrier("after-7")
     }
 
-    "recover coordinator state after coordinator crash" in within(60 seconds) {
+    "recover coordinator state after coordinator crash" in within(60.seconds) {
       join(fifth, fourth)
 
       runOn(controller) {
@@ -649,7 +649,7 @@ abstract class ClusterShardingSpec(multiNodeConfig: ClusterShardingSpecConfig)
       enterBarrier("after-8")
     }
 
-    "rebalance to nodes with less shards" in within(60 seconds) {
+    "rebalance to nodes with less shards" in within(60.seconds) {
       runOn(fourth) {
         for (n <- 1 to 10) {
           rebalancingRegion ! EntityEnvelope(n, Increment)
@@ -799,26 +799,26 @@ abstract class ClusterShardingSpec(multiNodeConfig: ClusterShardingSpecConfig)
       // clean up shard cache everywhere
       runOn(third, fourth, fifth) {
         persistentEntitiesRegion ! BeginHandOff("1")
-        expectMsg(10 seconds, "ShardStopped not received", BeginHandOffAck("1"))
+        expectMsg(10.seconds, "ShardStopped not received", BeginHandOffAck("1"))
       }
       enterBarrier("everybody-hand-off-ack")
 
       runOn(third) {
         // Stop the shard cleanly
         region ! HandOff("1")
-        expectMsg(10 seconds, "ShardStopped not received", ShardStopped("1"))
+        expectMsg(10.seconds, "ShardStopped not received", ShardStopped("1"))
 
         val probe = TestProbe()
         awaitAssert({
             shard.tell(Identify(1), probe.ref)
-            probe.expectMsg(1 second, "Shard was still around", ActorIdentity(1, None))
-          }, 5 seconds, 500 millis)
+            probe.expectMsg(1.second, "Shard was still around", ActorIdentity(1, None))
+          }, 5.seconds, 500.millis)
 
         // Get the path to where the shard now resides
         awaitAssert({
             persistentEntitiesRegion ! Get(13)
             expectMsg(0)
-          }, 5 seconds, 500 millis)
+          }, 5.seconds, 500.millis)
 
         // Check that counter 1 is now alive again, even though we have
         // not sent a message to it via the ShardRegion
@@ -847,7 +847,7 @@ abstract class ClusterShardingSpec(multiNodeConfig: ClusterShardingSpecConfig)
         // Check that no counter "1" exists in this shard
         val secondCounter1 = system.actorSelection(lastSender.path.parent / "1")
         secondCounter1 ! Identify(3)
-        expectMsg(3 seconds, ActorIdentity(3, None))
+        expectMsg(3.seconds, ActorIdentity(3, None))
 
       }
       enterBarrier("after-12")
@@ -883,24 +883,24 @@ abstract class ClusterShardingSpec(multiNodeConfig: ClusterShardingSpecConfig)
         shard.tell(Passivate(Stop), counter1)
 
         // Watch for the terminated message
-        expectTerminated(counter1, 5 seconds)
+        expectTerminated(counter1, 5.seconds)
 
         val probe1 = TestProbe()
         awaitAssert({
             // Check counter 1 is dead
             counter1.tell(Identify(1), probe1.ref)
-            probe1.expectMsg(1 second, "Entity 1 was still around", ActorIdentity(1, None))
-          }, 5 second, 500 millis)
+            probe1.expectMsg(1.second, "Entity 1 was still around", ActorIdentity(1, None))
+          }, 5.second, 500.millis)
 
         // Stop the shard cleanly
         region ! HandOff("1")
-        expectMsg(10 seconds, "ShardStopped not received", ShardStopped("1"))
+        expectMsg(10.seconds, "ShardStopped not received", ShardStopped("1"))
 
         val probe2 = TestProbe()
         awaitAssert({
             shard.tell(Identify(2), probe2.ref)
-            probe2.expectMsg(1 second, "Shard was still around", ActorIdentity(2, None))
-          }, 5 seconds, 500 millis)
+            probe2.expectMsg(1.second, "Shard was still around", ActorIdentity(2, None))
+          }, 5.seconds, 500.millis)
       }
 
       enterBarrier("shard-shutdown-12")
@@ -920,8 +920,8 @@ abstract class ClusterShardingSpec(multiNodeConfig: ClusterShardingSpecConfig)
         val probe3 = TestProbe()
         awaitAssert({
             system.actorSelection(shard / "13").tell(Identify(4), probe3.ref)
-            probe3.expectMsgType[ActorIdentity](1 second).ref should not be None
-          }, 5 seconds, 500 millis)
+            probe3.expectMsgType[ActorIdentity](1.second).ref should not be None
+          }, 5.seconds, 500.millis)
       }
 
       enterBarrier("after-13")
@@ -946,7 +946,7 @@ abstract class ClusterShardingSpec(multiNodeConfig: ClusterShardingSpecConfig)
         val probe = TestProbe()
         awaitAssert({
             counter1.tell(Identify(1), probe.ref)
-            probe.expectMsgType[ActorIdentity](1 second).ref should not be None
+            probe.expectMsgType[ActorIdentity](1.second).ref should not be None
           }, 5.seconds, 500.millis)
       }
 
@@ -983,8 +983,8 @@ abstract class ClusterShardingSpec(multiNodeConfig: ClusterShardingSpecConfig)
         val probe = TestProbe()
         awaitAssert({
             counter1.tell(Identify(1), probe.ref)
-            probe.expectMsgType[ActorIdentity](1 second).ref should not be None
-          }, 5.seconds, 500 millis)
+            probe.expectMsgType[ActorIdentity](1.second).ref should not be None
+          }, 5.seconds, 500.millis)
 
         counter1 ! Get(1)
         expectMsg(2)
@@ -1017,7 +1017,7 @@ abstract class ClusterShardingSpec(multiNodeConfig: ClusterShardingSpecConfig)
           for (n <- 2 to 12) {
             val entity = system.actorSelection(rebalancingPersistentRegion.path / (n % 12).toString / n.toString)
             entity ! Identify(n)
-            receiveOne(3 seconds) match {
+            receiveOne(3.seconds) match {
               case ActorIdentity(id, Some(_)) if id == n => count = count + 1
               case ActorIdentity(_, None)                => // Not on the fifth shard
               case _                                     => fail()
diff --git a/cluster-tools/src/multi-jvm/scala/org/apache/pekko/cluster/client/ClusterClientSpec.scala b/cluster-tools/src/multi-jvm/scala/org/apache/pekko/cluster/client/ClusterClientSpec.scala
index 2854065cd5..d43e6009d6 100644
--- a/cluster-tools/src/multi-jvm/scala/org/apache/pekko/cluster/client/ClusterClientSpec.scala
+++ b/cluster-tools/src/multi-jvm/scala/org/apache/pekko/cluster/client/ClusterClientSpec.scala
@@ -216,7 +216,7 @@ class ClusterClientSpec extends MultiNodeSpec(ClusterClientSpec) with STMultiNod
 
   "A ClusterClient" must {
 
-    "startup cluster" in within(30 seconds) {
+    "startup cluster" in within(30.seconds) {
       join(first, first)
       join(second, first)
       join(third, first)
@@ -232,7 +232,7 @@ class ClusterClientSpec extends MultiNodeSpec(ClusterClientSpec) with STMultiNod
       enterBarrier("after-1")
     }
 
-    "communicate to actor on any node in cluster" in within(10 seconds) {
+    "communicate to actor on any node in cluster" in within(10.seconds) {
       runOn(client) {
         val c = system.actorOf(
           ClusterClient.props(ClusterClientSettings(system).withInitialContacts(initialContacts)),
@@ -248,7 +248,7 @@ class ClusterClientSpec extends MultiNodeSpec(ClusterClientSpec) with STMultiNod
       enterBarrier("after-2")
     }
 
-    "work with ask" in within(10 seconds) {
+    "work with ask" in within(10.seconds) {
       runOn(client) {
         import pekko.pattern.ask
         val c = system.actorOf(
@@ -266,7 +266,7 @@ class ClusterClientSpec extends MultiNodeSpec(ClusterClientSpec) with STMultiNod
       enterBarrier("after-3")
     }
 
-    "demonstrate usage" in within(15 seconds) {
+    "demonstrate usage" in within(15.seconds) {
       def host1 = first
       def host2 = second
       def host3 = third
@@ -308,7 +308,7 @@ class ClusterClientSpec extends MultiNodeSpec(ClusterClientSpec) with STMultiNod
       enterBarrier("after-4")
     }
 
-    "report events" in within(15 seconds) {
+    "report events" in within(15.seconds) {
       runOn(client) {
         implicit val timeout: Timeout = Timeout(1.second.dilated)
         val client = Await.result(system.actorSelection("/user/client").resolveOne(), timeout.duration)
@@ -348,7 +348,7 @@ class ClusterClientSpec extends MultiNodeSpec(ClusterClientSpec) with STMultiNod
       enterBarrier("after-5")
     }
 
-    "report a removal of a receptionist" in within(10 seconds) {
+    "report a removal of a receptionist" in within(10.seconds) {
       runOn(client) {
         val unreachableContact = node(client) / "system" / "receptionist"
         val expectedRoles = Set(first, second, third, fourth)
diff --git a/cluster-tools/src/multi-jvm/scala/org/apache/pekko/cluster/pubsub/DistributedPubSubMediatorSpec.scala b/cluster-tools/src/multi-jvm/scala/org/apache/pekko/cluster/pubsub/DistributedPubSubMediatorSpec.scala
index 26b6a1837d..5bd8f1e2ae 100644
--- a/cluster-tools/src/multi-jvm/scala/org/apache/pekko/cluster/pubsub/DistributedPubSubMediatorSpec.scala
+++ b/cluster-tools/src/multi-jvm/scala/org/apache/pekko/cluster/pubsub/DistributedPubSubMediatorSpec.scala
@@ -186,13 +186,13 @@ class DistributedPubSubMediatorSpec
 
   "A DistributedPubSubMediator" must {
 
-    "startup 2 node cluster" in within(15 seconds) {
+    "startup 2 node cluster" in within(15.seconds) {
       join(first, first)
       join(second, first)
       enterBarrier("after-1")
     }
 
-    "keep track of added users" in within(15 seconds) {
+    "keep track of added users" in within(15.seconds) {
       runOn(first) {
         val u1 = createChatUser("u1")
         mediator ! Put(u1)
@@ -242,7 +242,7 @@ class DistributedPubSubMediatorSpec
       enterBarrier("after-2")
     }
 
-    "replicate users to new node" in within(20 seconds) {
+    "replicate users to new node" in within(20.seconds) {
       join(third, first)
 
       runOn(third) {
@@ -265,7 +265,7 @@ class DistributedPubSubMediatorSpec
       enterBarrier("after-3")
     }
 
-    "keep track of removed users" in within(15 seconds) {
+    "keep track of removed users" in within(15.seconds) {
       runOn(first) {
         val u6 = createChatUser("u6")
         mediator ! Put(u6)
@@ -281,7 +281,7 @@ class DistributedPubSubMediatorSpec
       enterBarrier("after-4")
     }
 
-    "remove terminated users" in within(5 seconds) {
+    "remove terminated users" in within(5.seconds) {
       runOn(second) {
         chatUser("u3") ! PoisonPill
       }
@@ -290,7 +290,7 @@ class DistributedPubSubMediatorSpec
       enterBarrier("after-5")
     }
 
-    "publish" in within(15 seconds) {
+    "publish" in within(15.seconds) {
       runOn(first, second) {
         val u7 = createChatUser("u7")
         mediator ! Put(u7)
@@ -313,7 +313,7 @@ class DistributedPubSubMediatorSpec
       enterBarrier("after-6")
     }
 
-    "publish to topic" in within(15 seconds) {
+    "publish to topic" in within(15.seconds) {
       runOn(first) {
         val s8 = Subscribe("topic1", createChatUser("u8"))
         mediator ! s8
@@ -352,7 +352,7 @@ class DistributedPubSubMediatorSpec
       enterBarrier("after-7")
     }
 
-    "demonstrate usage of Publish" in within(15 seconds) {
+    "demonstrate usage of Publish" in within(15.seconds) {
       def later(): Unit = {
         awaitCount(10)
       }
@@ -379,7 +379,7 @@ class DistributedPubSubMediatorSpec
       enterBarrier("after-8")
     }
 
-    "demonstrate usage of Send" in within(15 seconds) {
+    "demonstrate usage of Send" in within(15.seconds) {
       def later(): Unit = {
         awaitCount(12)
       }
@@ -405,7 +405,7 @@ class DistributedPubSubMediatorSpec
       enterBarrier("after-8")
     }
 
-    "send-all to all other nodes" in within(15 seconds) {
+    "send-all to all other nodes" in within(15.seconds) {
       runOn(first, second, third) { // create the user on all nodes
         val u11 = createChatUser("u11")
         mediator ! Put(u11)
@@ -428,7 +428,7 @@ class DistributedPubSubMediatorSpec
       enterBarrier("after-11")
     }
 
-    "send one message to each group" in within(20 seconds) {
+    "send one message to each group" in within(20.seconds) {
       runOn(first) {
         val u12 = createChatUser("u12")
         u12 ! JoinGroup("topic2", "group1")
@@ -517,7 +517,7 @@ class DistributedPubSubMediatorSpec
       enterBarrier("after-13")
     }
 
-    "remove entries when node is removed" in within(30 seconds) {
+    "remove entries when node is removed" in within(30.seconds) {
       mediator ! Count
       val countBefore = expectMsgType[Int]
 
@@ -535,7 +535,7 @@ class DistributedPubSubMediatorSpec
       enterBarrier("after-14")
     }
 
-    "receive proper unsubscribeAck message" in within(15 seconds) {
+    "receive proper unsubscribeAck message" in within(15.seconds) {
       runOn(first) {
         val user = createChatUser("u111")
         val topic = "sample-topic1"
@@ -549,7 +549,7 @@ class DistributedPubSubMediatorSpec
       enterBarrier("after-14")
     }
 
-    "get topics after simple publish" in within(15 seconds) {
+    "get topics after simple publish" in within(15.seconds) {
       runOn(first) {
         val s1 = Subscribe("topic_a1", createChatUser("u14"))
         mediator ! s1
@@ -597,7 +597,7 @@ class DistributedPubSubMediatorSpec
 
     }
 
-    "remove topic subscribers when they terminate" in within(15 seconds) {
+    "remove topic subscribers when they terminate" in within(15.seconds) {
       runOn(first) {
         val s1 = Subscribe("topic_b1", createChatUser("u18"))
         mediator ! s1
diff --git a/cluster-tools/src/multi-jvm/scala/org/apache/pekko/cluster/pubsub/DistributedPubSubRestartSpec.scala b/cluster-tools/src/multi-jvm/scala/org/apache/pekko/cluster/pubsub/DistributedPubSubRestartSpec.scala
index 55c87551ca..bfbba5ee23 100644
--- a/cluster-tools/src/multi-jvm/scala/org/apache/pekko/cluster/pubsub/DistributedPubSubRestartSpec.scala
+++ b/cluster-tools/src/multi-jvm/scala/org/apache/pekko/cluster/pubsub/DistributedPubSubRestartSpec.scala
@@ -93,14 +93,14 @@ class DistributedPubSubRestartSpec
 
   "A Cluster with DistributedPubSub" must {
 
-    "startup 3 node cluster" in within(15 seconds) {
+    "startup 3 node cluster" in within(15.seconds) {
       join(first, first)
       join(second, first)
       join(third, first)
       enterBarrier("after-1")
     }
 
-    "handle restart of nodes with same address" in within(30 seconds) {
+    "handle restart of nodes with same address" in within(30.seconds) {
       mediator ! Subscribe("topic1", testActor)
       expectMsgType[SubscribeAck]
       awaitCount(3)
diff --git a/cluster-tools/src/multi-jvm/scala/org/apache/pekko/cluster/singleton/ClusterSingletonManagerChaosSpec.scala b/cluster-tools/src/multi-jvm/scala/org/apache/pekko/cluster/singleton/ClusterSingletonManagerChaosSpec.scala
index 57b0819af3..2f97a988bc 100644
--- a/cluster-tools/src/multi-jvm/scala/org/apache/pekko/cluster/singleton/ClusterSingletonManagerChaosSpec.scala
+++ b/cluster-tools/src/multi-jvm/scala/org/apache/pekko/cluster/singleton/ClusterSingletonManagerChaosSpec.scala
@@ -122,7 +122,7 @@ class ClusterSingletonManagerChaosSpec
 
   "A ClusterSingletonManager in chaotic cluster" must {
 
-    "startup 6 node cluster" in within(60 seconds) {
+    "startup 6 node cluster" in within(60.seconds) {
       val memberProbe = TestProbe()
       Cluster(system).subscribe(memberProbe.ref, classOf[MemberUp])
       memberProbe.expectMsgClass(classOf[CurrentClusterState])
@@ -157,7 +157,7 @@ class ClusterSingletonManagerChaosSpec
 
     }
 
-    "take over when three oldest nodes crash in 6 nodes cluster" in within(90 seconds) {
+    "take over when three oldest nodes crash in 6 nodes cluster" in within(90.seconds) {
       // mute logging of deadLetters during shutdown of systems
       if (!log.isDebugEnabled)
         system.eventStream.publish(Mute(DeadLettersFilter[Any]))
diff --git a/cluster-tools/src/multi-jvm/scala/org/apache/pekko/cluster/singleton/ClusterSingletonManagerSpec.scala b/cluster-tools/src/multi-jvm/scala/org/apache/pekko/cluster/singleton/ClusterSingletonManagerSpec.scala
index f04c2aa276..39fe21d2ca 100644
--- a/cluster-tools/src/multi-jvm/scala/org/apache/pekko/cluster/singleton/ClusterSingletonManagerSpec.scala
+++ b/cluster-tools/src/multi-jvm/scala/org/apache/pekko/cluster/singleton/ClusterSingletonManagerSpec.scala
@@ -313,13 +313,13 @@ class ClusterSingletonManagerSpec
     runOn(controller) {
       queue ! msg
       // make sure it's not terminated, which would be wrong
-      expectNoMessage(1 second)
+      expectNoMessage(1.second)
     }
     runOn(oldest) {
       expectMsg(5.seconds, msg)
     }
     runOn(roles.filterNot(r => r == oldest || r == controller || r == observer): _*) {
-      expectNoMessage(1 second)
+      expectNoMessage(1.second)
     }
     enterBarrier("after-" + msg + "-verified")
   }
@@ -337,7 +337,7 @@ class ClusterSingletonManagerSpec
 
   "A ClusterSingletonManager" must {
 
-    "startup 6 node cluster" in within(60 seconds) {
+    "startup 6 node cluster" in within(60.seconds) {
 
       val memberProbe = TestProbe()
       Cluster(system).subscribe(memberProbe.ref, classOf[MemberUp])
@@ -387,7 +387,7 @@ class ClusterSingletonManagerSpec
       enterBarrier("after-1")
     }
 
-    "let the proxy route messages to the singleton in a 6 node cluster" in within(60 seconds) {
+    "let the proxy route messages to the singleton in a 6 node cluster" in within(60.seconds) {
       verifyProxyMsg(first, first, msg = msg())
       verifyProxyMsg(first, second, msg = msg())
       verifyProxyMsg(first, third, msg = msg())
@@ -396,7 +396,7 @@ class ClusterSingletonManagerSpec
       verifyProxyMsg(first, sixth, msg = msg())
     }
 
-    "hand over when oldest leaves in 6 nodes cluster " in within(30 seconds) {
+    "hand over when oldest leaves in 6 nodes cluster " in within(30.seconds) {
       val leaveRole = first
 
       runOn(leaveRole) {
@@ -424,7 +424,7 @@ class ClusterSingletonManagerSpec
       enterBarrier("after-leave")
     }
 
-    "take over when oldest crashes in 5 nodes cluster" in within(60 seconds) {
+    "take over when oldest crashes in 5 nodes cluster" in within(60.seconds) {
       // mute logging of deadLetters during shutdown of systems
       if (!log.isDebugEnabled)
         system.eventStream.publish(Mute(DeadLettersFilter[Any]))
@@ -439,7 +439,7 @@ class ClusterSingletonManagerSpec
       verifyProxyMsg(third, sixth, msg = msg())
     }
 
-    "take over when two oldest crash in 3 nodes cluster" in within(60 seconds) {
+    "take over when two oldest crash in 3 nodes cluster" in within(60.seconds) {
       crash(third, fourth)
       verifyRegistration(fifth)
       verifyMsg(fifth, msg = msg())
@@ -447,7 +447,7 @@ class ClusterSingletonManagerSpec
       verifyProxyMsg(fifth, sixth, msg = msg())
     }
 
-    "take over when oldest crashes in 2 nodes cluster" in within(60 seconds) {
+    "take over when oldest crashes in 2 nodes cluster" in within(60.seconds) {
       crash(fifth)
       verifyRegistration(sixth)
       verifyMsg(sixth, msg = msg())
diff --git a/cluster/src/main/scala/org/apache/pekko/cluster/ClusterEvent.scala b/cluster/src/main/scala/org/apache/pekko/cluster/ClusterEvent.scala
index d571f39978..bdc779ab5d 100644
--- a/cluster/src/main/scala/org/apache/pekko/cluster/ClusterEvent.scala
+++ b/cluster/src/main/scala/org/apache/pekko/cluster/ClusterEvent.scala
@@ -166,7 +166,7 @@ object ClusterEvent {
     /**
      * Java API: get address of current data center leader, or null if none
      */
-    def getLeader: Address = leader orNull
+    def getLeader: Address = leader.orNull
 
     /**
      * get address of current leader, if any, within the data center that has the given role
@@ -366,7 +366,7 @@ object ClusterEvent {
      * Java API
      * @return address of current leader, or null if none
      */
-    def getLeader: Address = leader orNull
+    def getLeader: Address = leader.orNull
   }
 
   /**
@@ -380,7 +380,7 @@ object ClusterEvent {
      * Java API
      * @return address of current leader, or null if none
      */
-    def getLeader: Address = leader orNull
+    def getLeader: Address = leader.orNull
   }
 
   /**
diff --git a/cluster/src/main/scala/org/apache/pekko/cluster/Member.scala b/cluster/src/main/scala/org/apache/pekko/cluster/Member.scala
index d09e31fd27..0c813132f9 100644
--- a/cluster/src/main/scala/org/apache/pekko/cluster/Member.scala
+++ b/cluster/src/main/scala/org/apache/pekko/cluster/Member.scala
@@ -52,7 +52,8 @@ class Member private[cluster] (
     case _         => false
   }
   override def toString: String = {
-    s"Member($address, $status${if (dataCenter == ClusterSettings.DefaultDataCenter) "" else s", $dataCenter"}${if (appVersion == Version.Zero) ""
+    s"Member($address, $status${if (dataCenter == ClusterSettings.DefaultDataCenter) ""
+      else s", $dataCenter"}${if (appVersion == Version.Zero) ""
       else s", $appVersion"})"
   }
 
diff --git a/cluster/src/main/scala/org/apache/pekko/cluster/sbr/SplitBrainResolver.scala b/cluster/src/main/scala/org/apache/pekko/cluster/sbr/SplitBrainResolver.scala
index 0fed30518c..1386b812fa 100644
--- a/cluster/src/main/scala/org/apache/pekko/cluster/sbr/SplitBrainResolver.scala
+++ b/cluster/src/main/scala/org/apache/pekko/cluster/sbr/SplitBrainResolver.scala
@@ -484,7 +484,8 @@ import pekko.remote.artery.ThisActorSystemQuarantinedEvent
 
     log.warning(
       ClusterLogMarker.sbrDowning(decision),
-      s"SBR took decision $decision and is downing [${nodesToDown.map(_.address).mkString(", ")}]${if (downMyself) " including myself"
+      s"SBR took decision $decision and is downing [${nodesToDown.map(_.address).mkString(", ")}]${if (downMyself)
+          " including myself"
         else ""}, " +
       s"[${strategy.unreachable.size}] unreachable of [${strategy.members.size}] members" +
       indirectlyConnectedLogMessage +
diff --git a/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/ClusterDeathWatchSpec.scala b/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/ClusterDeathWatchSpec.scala
index dd5147d0f1..b4afa83bad 100644
--- a/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/ClusterDeathWatchSpec.scala
+++ b/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/ClusterDeathWatchSpec.scala
@@ -86,7 +86,7 @@ abstract class ClusterDeathWatchSpec
 
   "An actor watching a remote actor in the cluster" must {
 
-    "receive Terminated when watched node becomes Down/Removed" in within(20 seconds) {
+    "receive Terminated when watched node becomes Down/Removed" in within(20.seconds) {
       awaitClusterUp(first, second, third, fourth)
       enterBarrier("cluster-up")
 
@@ -163,7 +163,7 @@ abstract class ClusterDeathWatchSpec
     }
 
     "not be able to watch an actor before node joins cluster, ClusterRemoteWatcher takes over from RemoteWatcher" in within(
-      20 seconds) {
+      20.seconds) {
       runOn(fifth) {
         system.actorOf(
           Props(new Actor { def receive = Actor.emptyBehavior }).withDeploy(Deploy.local),
@@ -253,7 +253,7 @@ abstract class ClusterDeathWatchSpec
       enterBarrier("after-4")
     }
 
-    "be able to shutdown system when using remote deployed actor on node that crash" in within(20 seconds) {
+    "be able to shutdown system when using remote deployed actor on node that crash" in within(20.seconds) {
       // fourth actor system will be shutdown, not part of testConductor any more
       // so we can't use barriers to synchronize with it
       val firstAddress = address(first)
@@ -298,7 +298,7 @@ abstract class ClusterDeathWatchSpec
           endProbe.expectMsg(EndActor.EndAck)
 
         } finally {
-          shutdown(endSystem, 10 seconds)
+          shutdown(endSystem, 10.seconds)
         }
         // no barrier here, because it is not part of testConductor roles any more
 
diff --git a/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/ConvergenceSpec.scala b/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/ConvergenceSpec.scala
index 6c88cd46c2..4fe6a9f11c 100644
--- a/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/ConvergenceSpec.scala
+++ b/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/ConvergenceSpec.scala
@@ -79,7 +79,7 @@ abstract class ConvergenceSpec(multiNodeConfig: ConvergenceMultiNodeConfig)
 
       runOn(first, second) {
 
-        within(28 seconds) {
+        within(28.seconds) {
           // third becomes unreachable
           awaitAssert(clusterView.unreachableMembers.size should ===(1))
           awaitSeenSameState(first, second)
diff --git a/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/InitialHeartbeatSpec.scala b/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/InitialHeartbeatSpec.scala
index c5895573a5..3c7e1ab506 100644
--- a/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/InitialHeartbeatSpec.scala
+++ b/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/InitialHeartbeatSpec.scala
@@ -54,7 +54,7 @@ abstract class InitialHeartbeatSpec extends MultiNodeClusterSpec(InitialHeartbea
       awaitClusterUp(first)
 
       runOn(first) {
-        within(10 seconds) {
+        within(10.seconds) {
           awaitAssert({
               cluster.sendCurrentClusterState(testActor)
               expectMsgType[CurrentClusterState].members.map(_.address) should contain(secondAddress)
@@ -63,7 +63,7 @@ abstract class InitialHeartbeatSpec extends MultiNodeClusterSpec(InitialHeartbea
       }
       runOn(second) {
         cluster.join(first)
-        within(10 seconds) {
+        within(10.seconds) {
           awaitAssert({
               cluster.sendCurrentClusterState(testActor)
               expectMsgType[CurrentClusterState].members.map(_.address) should contain(firstAddress)
@@ -81,7 +81,7 @@ abstract class InitialHeartbeatSpec extends MultiNodeClusterSpec(InitialHeartbea
       }
 
       runOn(second) {
-        within(15 seconds) {
+        within(15.seconds) {
           awaitCond(!cluster.failureDetector.isAvailable(first))
         }
       }
diff --git a/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/LeaderDowningNodeThatIsUnreachableSpec.scala b/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/LeaderDowningNodeThatIsUnreachableSpec.scala
index 2b58a8a72a..16a183fd88 100644
--- a/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/LeaderDowningNodeThatIsUnreachableSpec.scala
+++ b/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/LeaderDowningNodeThatIsUnreachableSpec.scala
@@ -124,7 +124,7 @@ abstract class LeaderDowningNodeThatIsUnreachableSpec(
       runOn(third) {
         enterBarrier("down-second-node")
 
-        awaitMembersUp(numberOfMembers = 2, canNotBePartOfMemberRing = Set(secondAddress), 30 seconds)
+        awaitMembersUp(numberOfMembers = 2, canNotBePartOfMemberRing = Set(secondAddress), 30.seconds)
       }
 
       enterBarrier("await-completion-2")
diff --git a/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/LeaderElectionSpec.scala b/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/LeaderElectionSpec.scala
index 9a09a425cc..aaaa15876b 100644
--- a/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/LeaderElectionSpec.scala
+++ b/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/LeaderElectionSpec.scala
@@ -121,13 +121,13 @@ abstract class LeaderElectionSpec(multiNodeConfig: LeaderElectionMultiNodeConfig
       }
     }
 
-    "be able to 're-elect' a single leader after leader has left" taggedAs LongRunningTest in within(30 seconds) {
+    "be able to 're-elect' a single leader after leader has left" taggedAs LongRunningTest in within(30.seconds) {
       shutdownLeaderAndVerifyNewLeader(alreadyShutdown = 0)
       enterBarrier("after-2")
     }
 
     "be able to 're-elect' a single leader after leader has left (again)" taggedAs LongRunningTest in within(
-      30 seconds) {
+      30.seconds) {
       shutdownLeaderAndVerifyNewLeader(alreadyShutdown = 1)
       enterBarrier("after-3")
     }
diff --git a/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/MBeanSpec.scala b/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/MBeanSpec.scala
index 9fc91cbb05..bc57ec910a 100644
--- a/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/MBeanSpec.scala
+++ b/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/MBeanSpec.scala
@@ -107,7 +107,7 @@ abstract class MBeanSpec extends MultiNodeClusterSpec(MBeanMultiJvmSpec) {
 
     val fourthAddress = address(fourth)
 
-    "format cluster status as JSON with full reachability info" taggedAs LongRunningTest in within(30 seconds) {
+    "format cluster status as JSON with full reachability info" taggedAs LongRunningTest in within(30.seconds) {
       runOn(first) {
         testConductor.exit(fourth, 0).await
       }
@@ -187,7 +187,7 @@ abstract class MBeanSpec extends MultiNodeClusterSpec(MBeanMultiJvmSpec) {
 
     }
 
-    "support down" taggedAs LongRunningTest in within(20 seconds) {
+    "support down" taggedAs LongRunningTest in within(20.seconds) {
 
       // fourth unreachable in previous step
 
@@ -205,7 +205,7 @@ abstract class MBeanSpec extends MultiNodeClusterSpec(MBeanMultiJvmSpec) {
       enterBarrier("after-6")
     }
 
-    "support leave" taggedAs LongRunningTest in within(20 seconds) {
+    "support leave" taggedAs LongRunningTest in within(20.seconds) {
       runOn(second) {
         mbeanServer.invoke(mbeanName, "leave", Array(address(third).toString), Array("java.lang.String"))
       }
diff --git a/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/MemberWeaklyUpSpec.scala b/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/MemberWeaklyUpSpec.scala
index 83736605b2..858e20756a 100644
--- a/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/MemberWeaklyUpSpec.scala
+++ b/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/MemberWeaklyUpSpec.scala
@@ -63,7 +63,7 @@ abstract class MemberWeaklyUpSpec extends MultiNodeClusterSpec(MemberWeaklyUpSpe
     }
 
     "detect network partition and mark nodes on other side as unreachable" taggedAs LongRunningTest in within(
-      20 seconds) {
+      20.seconds) {
       runOn(first) {
         // split the cluster in two parts (first, second) / (third, fourth, fifth)
         for (role1 <- side1; role2 <- side2) {
@@ -83,7 +83,7 @@ abstract class MemberWeaklyUpSpec extends MultiNodeClusterSpec(MemberWeaklyUpSpe
       enterBarrier("after-2")
     }
 
-    "accept joining on each side and set status to WeaklyUp" taggedAs LongRunningTest in within(20 seconds) {
+    "accept joining on each side and set status to WeaklyUp" taggedAs LongRunningTest in within(20.seconds) {
       runOn(second) {
         Cluster(system).join(first)
       }
@@ -113,7 +113,7 @@ abstract class MemberWeaklyUpSpec extends MultiNodeClusterSpec(MemberWeaklyUpSpe
       enterBarrier("after-3")
     }
 
-    "change status to Up after healed network partition" taggedAs LongRunningTest in within(20 seconds) {
+    "change status to Up after healed network partition" taggedAs LongRunningTest in within(20.seconds) {
       runOn(first) {
         for (role1 <- side1; role2 <- side2) {
           testConductor.passThrough(role1, role2, Direction.Both).await
diff --git a/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/RestartFirstSeedNodeSpec.scala b/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/RestartFirstSeedNodeSpec.scala
index 956007b693..283a351963 100644
--- a/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/RestartFirstSeedNodeSpec.scala
+++ b/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/RestartFirstSeedNodeSpec.scala
@@ -84,7 +84,7 @@ abstract class RestartFirstSeedNodeSpec
   }
 
   "Cluster seed nodes" must {
-    "be able to restart first seed node and join other seed nodes" taggedAs LongRunningTest in within(40 seconds) {
+    "be able to restart first seed node and join other seed nodes" taggedAs LongRunningTest in within(40.seconds) {
       // seed1System is a separate ActorSystem, to be able to simulate restart
       // we must transfer its address to seed2 and seed3
       runOn(seed2, seed3) {
@@ -103,7 +103,7 @@ abstract class RestartFirstSeedNodeSpec
         seedNode1Address = Cluster(seed1System).selfAddress
         List(seed2, seed3).foreach { r =>
           system.actorSelection(RootActorPath(r) / "user" / "address-receiver") ! seedNode1Address
-          expectMsg(5 seconds, "ok")
+          expectMsg(5.seconds, "ok")
         }
       }
       enterBarrier("seed1-address-transferred")
diff --git a/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/SplitBrainSpec.scala b/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/SplitBrainSpec.scala
index 51b5f41e29..90943f7342 100644
--- a/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/SplitBrainSpec.scala
+++ b/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/SplitBrainSpec.scala
@@ -77,7 +77,7 @@ abstract class SplitBrainSpec(multiNodeConfig: SplitBrainMultiNodeConfig)
     }
 
     "detect network partition and mark nodes on other side as unreachable and form new cluster" taggedAs LongRunningTest in within(
-      30 seconds) {
+      30.seconds) {
       enterBarrier("before-split")
 
       runOn(first) {
diff --git a/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/StressSpec.scala b/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/StressSpec.scala
index 6ad2db7aa6..9a179e5520 100644
--- a/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/StressSpec.scala
+++ b/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/StressSpec.scala
@@ -857,7 +857,7 @@ abstract class StressSpec extends MultiNodeClusterSpec(StressMultiJvmSpec) with
     // note: there must be one test step before pending, otherwise afterTermination will not run
     if (isArteryEnabled && isAeronUdpTransport) pending
 
-    "join seed nodes" taggedAs LongRunningTest in within(30 seconds) {
+    "join seed nodes" taggedAs LongRunningTest in within(30.seconds) {
 
       val otherNodesJoiningSeedNodes =
         roles.slice(numberOfSeedNodes, numberOfSeedNodes + numberOfNodesJoiningToSeedNodesInitially)
diff --git a/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/UnreachableNodeJoinsAgainSpec.scala b/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/UnreachableNodeJoinsAgainSpec.scala
index 3bfe0beda3..aeb7a1f3e6 100644
--- a/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/UnreachableNodeJoinsAgainSpec.scala
+++ b/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/UnreachableNodeJoinsAgainSpec.scala
@@ -96,7 +96,7 @@ abstract class UnreachableNodeJoinsAgainSpec extends MultiNodeClusterSpec(Unreac
       val allButVictim = allBut(victim, roles)
       runOn(victim) {
         allButVictim.foreach(markNodeAsUnavailable(_))
-        within(30 seconds) {
+        within(30.seconds) {
           // victim becomes all alone
           awaitAssert {
             clusterView.unreachableMembers.size should ===(roles.size - 1)
@@ -107,7 +107,7 @@ abstract class UnreachableNodeJoinsAgainSpec extends MultiNodeClusterSpec(Unreac
 
       runOn(allButVictim: _*) {
         markNodeAsUnavailable(victim)
-        within(30 seconds) {
+        within(30.seconds) {
           // victim becomes unreachable
           awaitAssert {
             clusterView.unreachableMembers.size should ===(1)
@@ -132,7 +132,7 @@ abstract class UnreachableNodeJoinsAgainSpec extends MultiNodeClusterSpec(Unreac
       runOn(allButVictim: _*) {
         // eventually removed
         awaitMembersUp(roles.size - 1, Set(victim))
-        awaitAssert(clusterView.unreachableMembers should ===(Set.empty), 15 seconds)
+        awaitAssert(clusterView.unreachableMembers should ===(Set.empty), 15.seconds)
         awaitAssert(clusterView.members.map(_.address) should ===(allButVictim.map(address).toSet))
 
       }
@@ -184,14 +184,14 @@ abstract class UnreachableNodeJoinsAgainSpec extends MultiNodeClusterSpec(Unreac
               }""")
             .withFallback(system.settings.config)
 
-        Await.ready(system.whenTerminated, 10 seconds)
+        Await.ready(system.whenTerminated, 10.seconds)
 
         // create new ActorSystem with same host:port
         val freshSystem = ActorSystem(system.name, freshConfig)
 
         try {
           Cluster(freshSystem).join(masterAddress)
-          within(30 seconds) {
+          within(30.seconds) {
             awaitAssert(Cluster(freshSystem).readView.members.map(_.address) should contain(victimAddress))
             awaitAssert(Cluster(freshSystem).readView.members.size should ===(expectedNumberOfMembers))
             awaitAssert(Cluster(freshSystem).readView.members.unsorted.map(_.status) should ===(Set(MemberStatus.Up)))
@@ -213,7 +213,7 @@ abstract class UnreachableNodeJoinsAgainSpec extends MultiNodeClusterSpec(Unreac
         awaitMembersUp(expectedNumberOfMembers)
         // don't end the test until the freshSystem is done
         runOn(master) {
-          expectMsg(20 seconds, EndActor.End)
+          expectMsg(20.seconds, EndActor.End)
         }
         endBarrier()
       }
diff --git a/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/routing/ClusterRoundRobinSpec.scala b/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/routing/ClusterRoundRobinSpec.scala
index e49c82e0e6..f991d7dbed 100644
--- a/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/routing/ClusterRoundRobinSpec.scala
+++ b/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/routing/ClusterRoundRobinSpec.scala
@@ -132,7 +132,7 @@ abstract class ClusterRoundRobinSpec
 
   def receiveReplies(routeeType: RouteeType, expectedReplies: Int): Map[Address, Int] = {
     val zero = Map.empty[Address, Int] ++ roles.map(address(_) -> 0)
-    receiveWhile(5 seconds, messages = expectedReplies) {
+    receiveWhile(5.seconds, messages = expectedReplies) {
       case Reply(`routeeType`, ref) => fullAddress(ref)
     }.foldLeft(zero) {
       case (replyMap, address) => replyMap + (address -> (replyMap(address) + 1))
diff --git a/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/routing/UseRoleIgnoredSpec.scala b/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/routing/UseRoleIgnoredSpec.scala
index d0dec303a1..3dd0a8e9c9 100644
--- a/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/routing/UseRoleIgnoredSpec.scala
+++ b/cluster/src/multi-jvm/scala/org/apache/pekko/cluster/routing/UseRoleIgnoredSpec.scala
@@ -75,7 +75,7 @@ abstract class UseRoleIgnoredSpec
 
   def receiveReplies(routeeType: RouteeType, expectedReplies: Int): Map[Address, Int] = {
     val zero = Map.empty[Address, Int] ++ roles.map(address(_) -> 0)
-    receiveWhile(5 seconds, messages = expectedReplies) {
+    receiveWhile(5.seconds, messages = expectedReplies) {
       case Reply(`routeeType`, ref) => fullAddress(ref)
     }.foldLeft(zero) {
       case (replyMap, address) => replyMap + (address -> (replyMap(address) + 1))
diff --git a/cluster/src/test/scala/org/apache/pekko/cluster/ClusterConfigSpec.scala b/cluster/src/test/scala/org/apache/pekko/cluster/ClusterConfigSpec.scala
index f17380cbbf..7141dd9da9 100644
--- a/cluster/src/test/scala/org/apache/pekko/cluster/ClusterConfigSpec.scala
+++ b/cluster/src/test/scala/org/apache/pekko/cluster/ClusterConfigSpec.scala
@@ -38,21 +38,21 @@ class ClusterConfigSpec extends PekkoSpec {
       LogInfo should ===(true)
       FailureDetectorConfig.getDouble("threshold") should ===(8.0 +- 0.0001)
       FailureDetectorConfig.getInt("max-sample-size") should ===(1000)
-      FailureDetectorConfig.getMillisDuration("min-std-deviation") should ===(100 millis)
-      FailureDetectorConfig.getMillisDuration("acceptable-heartbeat-pause") should ===(3 seconds)
+      FailureDetectorConfig.getMillisDuration("min-std-deviation") should ===(100.millis)
+      FailureDetectorConfig.getMillisDuration("acceptable-heartbeat-pause") should ===(3.seconds)
       FailureDetectorImplementationClass should ===(classOf[PhiAccrualFailureDetector].getName)
       SeedNodes should ===(Vector.empty[Address])
-      SeedNodeTimeout should ===(5 seconds)
-      RetryUnsuccessfulJoinAfter should ===(10 seconds)
+      SeedNodeTimeout should ===(5.seconds)
+      RetryUnsuccessfulJoinAfter should ===(10.seconds)
       ShutdownAfterUnsuccessfulJoinSeedNodes should ===(Duration.Undefined)
-      PeriodicTasksInitialDelay should ===(1 seconds)
-      GossipInterval should ===(1 second)
-      GossipTimeToLive should ===(2 seconds)
-      HeartbeatInterval should ===(1 second)
+      PeriodicTasksInitialDelay should ===(1.seconds)
+      GossipInterval should ===(1.second)
+      GossipTimeToLive should ===(2.seconds)
+      HeartbeatInterval should ===(1.second)
       MonitoredByNrOfMembers should ===(9)
-      HeartbeatExpectedResponseAfter should ===(1 seconds)
-      LeaderActionsInterval should ===(1 second)
-      UnreachableNodesReaperInterval should ===(1 second)
+      HeartbeatExpectedResponseAfter should ===(1.seconds)
+      LeaderActionsInterval should ===(1.second)
+      UnreachableNodesReaperInterval should ===(1.second)
       PublishStatsInterval should ===(Duration.Undefined)
       DownRemovalMargin should ===(Duration.Zero)
       MinNrOfMembers should ===(1)
@@ -64,7 +64,7 @@ class ClusterConfigSpec extends PekkoSpec {
       UseDispatcher should ===(Dispatchers.InternalDispatcherId)
       GossipDifferentViewProbability should ===(0.8 +- 0.0001)
       ReduceGossipDifferentViewProbability should ===(400)
-      SchedulerTickDuration should ===(33 millis)
+      SchedulerTickDuration should ===(33.millis)
       SchedulerTicksPerWheel should ===(512)
     }
 
diff --git a/docs/src/test/scala/docs/actor/ActorDocSpec.scala b/docs/src/test/scala/docs/actor/ActorDocSpec.scala
index da97a4f7d2..90679a4804 100644
--- a/docs/src/test/scala/docs/actor/ActorDocSpec.scala
+++ b/docs/src/test/scala/docs/actor/ActorDocSpec.scala
@@ -400,10 +400,10 @@ class ActorDocSpec extends PekkoSpec("""
     system.eventStream.subscribe(testActor, classOf[Logging.Info])
 
     myActor ! "test"
-    expectMsgPF(1 second) { case Logging.Info(_, _, "received test") => true }
+    expectMsgPF(1.second) { case Logging.Info(_, _, "received test") => true }
 
     myActor ! "unknown"
-    expectMsgPF(1 second) { case Logging.Info(_, _, "received unknown message") => true }
+    expectMsgPF(1.second) { case Logging.Info(_, _, "received unknown message") => true }
 
     system.eventStream.unsubscribe(testActor)
     system.eventStream.publish(TestEvent.UnMute(filter))
@@ -420,7 +420,7 @@ class ActorDocSpec extends PekkoSpec("""
     val ponger = system.actorOf(Props(classOf[Ponger], pinger), "ponger")
 
     import system.dispatcher
-    system.scheduler.scheduleOnce(500 millis) {
+    system.scheduler.scheduleOnce(500.millis) {
       ponger ! Ping
     }
 
@@ -546,9 +546,9 @@ class ActorDocSpec extends PekkoSpec("""
     // #using-explicit-timeout
     import scala.concurrent.duration._
     import org.apache.pekko.pattern.ask
-    val future = myActor.ask("hello")(5 seconds)
+    val future = myActor.ask("hello")(5.seconds)
     // #using-explicit-timeout
-    Await.result(future, 5 seconds) should be("hello")
+    Await.result(future, 5.seconds) should be("hello")
   }
 
   "using receiveTimeout" in {
@@ -557,11 +557,11 @@ class ActorDocSpec extends PekkoSpec("""
     import scala.concurrent.duration._
     class MyActor extends Actor {
       // To set an initial delay
-      context.setReceiveTimeout(30 milliseconds)
+      context.setReceiveTimeout(30.milliseconds)
       def receive = {
         case "Hello" =>
           // To set in a response to a message
-          context.setReceiveTimeout(100 milliseconds)
+          context.setReceiveTimeout(100.milliseconds)
         case ReceiveTimeout =>
           // To turn it off
           context.setReceiveTimeout(Duration.Undefined)
@@ -671,8 +671,8 @@ class ActorDocSpec extends PekkoSpec("""
     import scala.concurrent.Await
 
     try {
-      val stopped: Future[Boolean] = gracefulStop(actorRef, 5 seconds, Manager.Shutdown)
-      Await.result(stopped, 6 seconds)
+      val stopped: Future[Boolean] = gracefulStop(actorRef, 5.seconds, Manager.Shutdown)
+      Await.result(stopped, 6.seconds)
       // the actor has been stopped
     } catch {
       // the actor wasn't stopped within 5 seconds
diff --git a/docs/src/test/scala/docs/actor/FSMDocSpec.scala b/docs/src/test/scala/docs/actor/FSMDocSpec.scala
index b5f7f4067b..3741d6fe42 100644
--- a/docs/src/test/scala/docs/actor/FSMDocSpec.scala
+++ b/docs/src/test/scala/docs/actor/FSMDocSpec.scala
@@ -81,7 +81,7 @@ class FSMDocSpec extends MyFavoriteTestFrameWorkPlusPekkoTestKit {
     // #transition-elided
     // #when-syntax
 
-    when(Active, stateTimeout = 1 second) {
+    when(Active, stateTimeout = 1.second) {
       case Event(Flush | StateTimeout, t: Todo) =>
         goto(Idle).using(t.copy(queue = Vector.empty))
     }
@@ -120,13 +120,13 @@ class FSMDocSpec extends MyFavoriteTestFrameWorkPlusPekkoTestKit {
       // #modifier-syntax
       when(SomeState) {
         case Event(msg, _) =>
-          goto(Processing).using(newData).forMax(5 seconds).replying(WillDo)
+          goto(Processing).using(newData).forMax(5.seconds).replying(WillDo)
       }
       // #modifier-syntax
 
       // #transition-syntax
       onTransition {
-        case Idle -> Active => startTimerWithFixedDelay("timeout", Tick, 1 second)
+        case Idle -> Active => startTimerWithFixedDelay("timeout", Tick, 1.second)
         case Active -> _    => cancelTimer("timeout")
         case x -> Idle      => log.info("entering Idle from " + x)
       }
diff --git a/docs/src/test/scala/docs/actor/FaultHandlingDocSample.scala b/docs/src/test/scala/docs/actor/FaultHandlingDocSample.scala
index 74c6ba09aa..8e1ee58e2a 100644
--- a/docs/src/test/scala/docs/actor/FaultHandlingDocSample.scala
+++ b/docs/src/test/scala/docs/actor/FaultHandlingDocSample.scala
@@ -57,7 +57,7 @@ object FaultHandlingDocSample extends App {
 class Listener extends Actor with ActorLogging {
   import Worker._
   // If we don't get any progress within 15 seconds then the service is unavailable
-  context.setReceiveTimeout(15 seconds)
+  context.setReceiveTimeout(15.seconds)
 
   def receive = {
     case Progress(percent) =>
@@ -90,7 +90,7 @@ object Worker {
 class Worker extends Actor with ActorLogging {
   import Worker._
   import CounterService._
-  implicit val askTimeout: Timeout = Timeout(5 seconds)
+  implicit val askTimeout: Timeout = Timeout(5.seconds)
 
   // Stop the CounterService child if it throws ServiceUnavailable
   override val supervisorStrategy = OneForOneStrategy() {
@@ -107,7 +107,7 @@ class Worker extends Actor with ActorLogging {
   def receive = LoggingReceive {
     case Start if progressListener.isEmpty =>
       progressListener = Some(sender())
-      context.system.scheduler.scheduleWithFixedDelay(Duration.Zero, 1 second, self, Do)
+      context.system.scheduler.scheduleWithFixedDelay(Duration.Zero, 1.second, self, Do)
 
     case Do =>
       counterService ! Increment(1)
@@ -147,7 +147,7 @@ class CounterService extends Actor {
 
   // Restart the storage child when StorageException is thrown.
   // After 3 restarts within 5 seconds it will be stopped.
-  override val supervisorStrategy = OneForOneStrategy(maxNrOfRetries = 3, withinTimeRange = 5 seconds) {
+  override val supervisorStrategy = OneForOneStrategy(maxNrOfRetries = 3, withinTimeRange = 5.seconds) {
     case _: Storage.StorageException => Restart
   }
 
@@ -200,7 +200,7 @@ class CounterService extends Actor {
       // Tell the counter that there is no storage for the moment
       counter.foreach { _ ! UseStorage(None) }
       // Try to re-establish storage after while
-      context.system.scheduler.scheduleOnce(10 seconds, self, Reconnect)
+      context.system.scheduler.scheduleOnce(10.seconds, self, Reconnect)
 
     case Reconnect =>
       // Re-establish storage after the scheduled delay
diff --git a/docs/src/test/scala/docs/actor/FaultHandlingDocSpec.scala b/docs/src/test/scala/docs/actor/FaultHandlingDocSpec.scala
index 71166a8307..cb10485a4f 100644
--- a/docs/src/test/scala/docs/actor/FaultHandlingDocSpec.scala
+++ b/docs/src/test/scala/docs/actor/FaultHandlingDocSpec.scala
@@ -39,7 +39,7 @@ object FaultHandlingDocSpec {
     import scala.concurrent.duration._
 
     override val supervisorStrategy =
-      OneForOneStrategy(maxNrOfRetries = 10, withinTimeRange = 1 minute) {
+      OneForOneStrategy(maxNrOfRetries = 10, withinTimeRange = 1.minute) {
         case _: ArithmeticException      => Resume
         case _: NullPointerException     => Restart
         case _: IllegalArgumentException => Stop
@@ -62,7 +62,7 @@ object FaultHandlingDocSpec {
     import scala.concurrent.duration._
 
     override val supervisorStrategy =
-      OneForOneStrategy(maxNrOfRetries = 10, withinTimeRange = 1 minute) {
+      OneForOneStrategy(maxNrOfRetries = 10, withinTimeRange = 1.minute) {
         case _: ArithmeticException      => Resume
         case _: NullPointerException     => Restart
         case _: IllegalArgumentException => Stop
@@ -86,7 +86,7 @@ object FaultHandlingDocSpec {
     import scala.concurrent.duration._
 
     override val supervisorStrategy =
-      OneForOneStrategy(maxNrOfRetries = 10, withinTimeRange = 1 minute) {
+      OneForOneStrategy(maxNrOfRetries = 10, withinTimeRange = 1.minute) {
         case _: ArithmeticException => Resume
         case t =>
           super.supervisorStrategy.decider.applyOrElse(t, (_: Any) => Escalate)
diff --git a/docs/src/test/scala/docs/actor/SchedulerDocSpec.scala b/docs/src/test/scala/docs/actor/SchedulerDocSpec.scala
index ab9e060335..ec8290950a 100644
--- a/docs/src/test/scala/docs/actor/SchedulerDocSpec.scala
+++ b/docs/src/test/scala/docs/actor/SchedulerDocSpec.scala
@@ -44,14 +44,14 @@ class SchedulerDocSpec extends PekkoSpec(Map("pekko.loglevel" -> "INFO")) {
     import system.dispatcher
 
     // Schedules to send the "foo"-message to the testActor after 50ms
-    system.scheduler.scheduleOnce(50 milliseconds, testActor, "foo")
+    system.scheduler.scheduleOnce(50.milliseconds, testActor, "foo")
     // #schedule-one-off-message
 
-    expectMsg(1 second, "foo")
+    expectMsg(1.second, "foo")
 
     // #schedule-one-off-thunk
     // Schedules a function to be executed (send a message to the testActor) after 50ms
-    system.scheduler.scheduleOnce(50 milliseconds) {
+    system.scheduler.scheduleOnce(50.milliseconds) {
       testActor ! System.currentTimeMillis
     }
     // #schedule-one-off-thunk
diff --git a/docs/src/test/scala/docs/duration/Sample.scala b/docs/src/test/scala/docs/duration/Sample.scala
index e9e4c79ee4..59dec6b9d8 100644
--- a/docs/src/test/scala/docs/duration/Sample.scala
+++ b/docs/src/test/scala/docs/duration/Sample.scala
@@ -24,7 +24,7 @@ object Scala {
   val diff = fivesec - threemillis
   assert(diff < fivesec)
   val fourmillis = threemillis * 4 / 3 // you cannot write it the other way around
-  val n = threemillis / (1 millisecond)
+  val n = threemillis / (1.millisecond)
   // #dsl
 
   // #deadline
diff --git a/docs/src/test/scala/docs/future/FutureDocSpec.scala b/docs/src/test/scala/docs/future/FutureDocSpec.scala
index e6dfd16a56..ba6ba57309 100644
--- a/docs/src/test/scala/docs/future/FutureDocSpec.scala
+++ b/docs/src/test/scala/docs/future/FutureDocSpec.scala
@@ -116,7 +116,7 @@ object FutureDocSpec {
     import org.apache.pekko.pattern.{ ask, pipe }
     implicit val ec: ExecutionContext = context.dispatcher
 
-    implicit val timeout: Timeout = Timeout(5 seconds)
+    implicit val timeout: Timeout = Timeout(5.seconds)
 
     def receive = {
       case GetUserData =>
@@ -200,7 +200,7 @@ class FutureDocSpec extends PekkoSpec {
     }
     future.foreach(println)
     // #future-eval
-    Await.result(future, 3 seconds) should be("HelloWorld")
+    Await.result(future, 3.seconds) should be("HelloWorld")
   }
 
   "demonstrate usage of map" in {
@@ -213,7 +213,7 @@ class FutureDocSpec extends PekkoSpec {
     }
     f2.foreach(println)
     // #map
-    val result = Await.result(f2, 3 seconds)
+    val result = Await.result(f2, 3.seconds)
     result should be(10)
     f1.value should be(Some(Success("HelloWorld")))
   }
@@ -231,7 +231,7 @@ class FutureDocSpec extends PekkoSpec {
     }
     f3.foreach(println)
     // #wrong-nested-map
-    Await.ready(f3, 3 seconds)
+    Await.ready(f3, 3.seconds)
   }
 
   "demonstrate usage of flatMap" in {
@@ -247,7 +247,7 @@ class FutureDocSpec extends PekkoSpec {
     }
     f3.foreach(println)
     // #flat-map
-    val result = Await.result(f3, 3 seconds)
+    val result = Await.result(f3, 3.seconds)
     result should be(30)
   }
 
@@ -265,9 +265,9 @@ class FutureDocSpec extends PekkoSpec {
 
     failedFilter.foreach(println)
     // #filter
-    val result = Await.result(future2, 3 seconds)
+    val result = Await.result(future2, 3.seconds)
     result should be(4)
-    val result2 = Await.result(failedFilter, 3 seconds)
+    val result2 = Await.result(failedFilter, 3.seconds)
     result2 should be(0) // Can only be 0 when there was a MatchError
   }
 
@@ -285,7 +285,7 @@ class FutureDocSpec extends PekkoSpec {
 
     f.foreach(println)
     // #for-comprehension
-    val result = Await.result(f, 3 seconds)
+    val result = Await.result(f, 3.seconds)
     result should be(24)
   }
 
@@ -303,12 +303,12 @@ class FutureDocSpec extends PekkoSpec {
     val f1 = ask(actor1, msg1)
     val f2 = ask(actor2, msg2)
 
-    val a = Await.result(f1, 3 seconds).asInstanceOf[Int]
-    val b = Await.result(f2, 3 seconds).asInstanceOf[Int]
+    val a = Await.result(f1, 3.seconds).asInstanceOf[Int]
+    val b = Await.result(f2, 3.seconds).asInstanceOf[Int]
 
     val f3 = ask(actor3, a + b)
 
-    val result = Await.result(f3, 3 seconds).asInstanceOf[Int]
+    val result = Await.result(f3, 3.seconds).asInstanceOf[Int]
     // #composing-wrong
     result should be(3)
   }
@@ -335,7 +335,7 @@ class FutureDocSpec extends PekkoSpec {
 
     f3.foreach(println)
     // #composing
-    val result = Await.result(f3, 3 seconds).asInstanceOf[Int]
+    val result = Await.result(f3, 3.seconds).asInstanceOf[Int]
     result should be(3)
   }
 
@@ -353,7 +353,7 @@ class FutureDocSpec extends PekkoSpec {
     val oddSum = futureList.map(_.sum)
     oddSum.foreach(println)
     // #sequence-ask
-    Await.result(oddSum, 3 seconds).asInstanceOf[Int] should be(10000)
+    Await.result(oddSum, 3.seconds).asInstanceOf[Int] should be(10000)
   }
 
   "demonstrate usage of sequence" in {
@@ -362,7 +362,7 @@ class FutureDocSpec extends PekkoSpec {
     val oddSum = futureList.map(_.sum)
     oddSum.foreach(println)
     // #sequence
-    Await.result(oddSum, 3 seconds).asInstanceOf[Int] should be(10000)
+    Await.result(oddSum, 3.seconds).asInstanceOf[Int] should be(10000)
   }
 
   "demonstrate usage of traverse" in {
@@ -371,7 +371,7 @@ class FutureDocSpec extends PekkoSpec {
     val oddSum = futureList.map(_.sum)
     oddSum.foreach(println)
     // #traverse
-    Await.result(oddSum, 3 seconds).asInstanceOf[Int] should be(10000)
+    Await.result(oddSum, 3.seconds).asInstanceOf[Int] should be(10000)
   }
 
   "demonstrate usage of fold" in {
@@ -381,7 +381,7 @@ class FutureDocSpec extends PekkoSpec {
     val futureSum = Future.foldLeft(futures)(0)(_ + _)
     futureSum.foreach(println)
     // #fold
-    Await.result(futureSum, 3 seconds) should be(1001000)
+    Await.result(futureSum, 3.seconds) should be(1001000)
   }
 
   "demonstrate usage of reduce" in {
@@ -391,7 +391,7 @@ class FutureDocSpec extends PekkoSpec {
     val futureSum = Future.reduceLeft(futures)(_ + _)
     futureSum.foreach(println)
     // #reduce
-    Await.result(futureSum, 3 seconds) should be(1001000)
+    Await.result(futureSum, 3.seconds) should be(1001000)
   }
 
   "demonstrate usage of recover" in {
@@ -419,7 +419,7 @@ class FutureDocSpec extends PekkoSpec {
     }
     future.foreach(println)
     // #try-recover
-    Await.result(future, 3 seconds) should be(0)
+    Await.result(future, 3.seconds) should be(0)
   }
 
   "demonstrate usage of zip" in {
@@ -429,7 +429,7 @@ class FutureDocSpec extends PekkoSpec {
     val future3 = future1.zip(future2).map { case (a, b) => a + " " + b }
     future3.foreach(println)
     // #zip
-    Await.result(future3, 3 seconds) should be("foo bar")
+    Await.result(future3, 3.seconds) should be("foo bar")
   }
 
   "demonstrate usage of andThen" in {
@@ -447,7 +447,7 @@ class FutureDocSpec extends PekkoSpec {
       }
     result.foreach(println)
     // #and-then
-    Await.result(result, 3 seconds) should be("foo bar")
+    Await.result(result, 3.seconds) should be("foo bar")
   }
 
   "demonstrate usage of fallbackTo" in {
@@ -458,7 +458,7 @@ class FutureDocSpec extends PekkoSpec {
     val future4 = future1.fallbackTo(future2).fallbackTo(future3)
     future4.foreach(println)
     // #fallback-to
-    Await.result(future4, 3 seconds) should be("foo")
+    Await.result(future4, 3.seconds) should be("foo")
   }
 
   "demonstrate usage of onComplete" in {
@@ -471,7 +471,7 @@ class FutureDocSpec extends PekkoSpec {
       case Failure(failure) => doSomethingOnFailure(failure)
     }
     // #onComplete
-    Await.result(future, 3 seconds) should be("foo")
+    Await.result(future, 3.seconds) should be("foo")
   }
 
   "demonstrate usage of Future.successful & Future.failed & Future.promise" in {
@@ -486,9 +486,9 @@ class FutureDocSpec extends PekkoSpec {
     val theFuture = promise.future
     promise.success("hello")
     // #promise
-    Await.result(future, 3 seconds) should be("Yay!")
-    intercept[IllegalArgumentException] { Await.result(otherFuture, 3 seconds) }
-    Await.result(theFuture, 3 seconds) should be("hello")
+    Await.result(future, 3.seconds) should be("Yay!")
+    intercept[IllegalArgumentException] { Await.result(otherFuture, 3.seconds) }
+    Await.result(theFuture, 3.seconds) should be("hello")
   }
 
   "demonstrate usage of pattern.after" in {
@@ -501,7 +501,7 @@ class FutureDocSpec extends PekkoSpec {
     val future = Future { Thread.sleep(1000); "foo" }
     val result = Future.firstCompletedOf(Seq(future, delayed))
     // #after
-    intercept[IllegalStateException] { Await.result(result, 2 second) }
+    intercept[IllegalStateException] { Await.result(result, 2.second) }
   }
 
   "demonstrate pattern.retry" in {
@@ -523,10 +523,10 @@ class FutureDocSpec extends PekkoSpec {
     }
 
     // Return a new future that will retry up to 10 times
-    val retried: Future[Int] = pekko.pattern.retry(() => futureToAttempt(), attempts = 10, 100 milliseconds)
+    val retried: Future[Int] = pekko.pattern.retry(() => futureToAttempt(), attempts = 10, 100.milliseconds)
     // #retry
 
-    Await.result(retried, 1 second) should ===(5)
+    Await.result(retried, 1.second) should ===(5)
   }
 
   "demonstrate context.dispatcher" in {
diff --git a/docs/src/test/scala/docs/stream/operators/sourceorflow/FoldAsync.scala b/docs/src/test/scala/docs/stream/operators/sourceorflow/FoldAsync.scala
index 18ba1cc259..dfc6476e8a 100644
--- a/docs/src/test/scala/docs/stream/operators/sourceorflow/FoldAsync.scala
+++ b/docs/src/test/scala/docs/stream/operators/sourceorflow/FoldAsync.scala
@@ -29,8 +29,7 @@ object FoldAsync extends App {
   // #foldAsync
   case class Histogram(low: Long = 0, high: Long = 0) {
     def add(i: Int): Future[Histogram] =
-      if (i < 100) Future { copy(low = low + 1) }
-      else Future { copy(high = high + 1) }
+      if (i < 100) Future { copy(low = low + 1) } else Future { copy(high = high + 1) }
   }
 
   Source(1 to 150).foldAsync(Histogram())((acc, n) => acc.add(n)).runForeach(println)
diff --git a/docs/src/test/scala/docs/testkit/TestKitUsageSpec.scala b/docs/src/test/scala/docs/testkit/TestKitUsageSpec.scala
index 7545669649..cf5cc5bca2 100644
--- a/docs/src/test/scala/docs/testkit/TestKitUsageSpec.scala
+++ b/docs/src/test/scala/docs/testkit/TestKitUsageSpec.scala
@@ -61,7 +61,7 @@ class TestKitUsageSpec
 
   "An EchoActor" should {
     "Respond with the same message it receives" in {
-      within(500 millis) {
+      within(500.millis) {
         echoRef ! "test"
         expectMsg("test")
       }
@@ -69,7 +69,7 @@ class TestKitUsageSpec
   }
   "A ForwardingActor" should {
     "Forward a message it receives" in {
-      within(500 millis) {
+      within(500.millis) {
         forwardRef ! "test"
         expectMsg("test")
       }
@@ -78,7 +78,7 @@ class TestKitUsageSpec
   "A FilteringActor" should {
     "Filter all messages, except expected messagetypes it receives" in {
       var messages = Seq[String]()
-      within(500 millis) {
+      within(500.millis) {
         filterRef ! "test"
         expectMsg("test")
         filterRef ! 1
@@ -89,7 +89,7 @@ class TestKitUsageSpec
         filterRef ! "text"
         filterRef ! 1
 
-        receiveWhile(500 millis) {
+        receiveWhile(500.millis) {
           case msg: String => messages = msg +: messages
         }
       }
@@ -99,7 +99,7 @@ class TestKitUsageSpec
   }
   "A SequencingActor" should {
     "receive an interesting message at some point " in {
-      within(500 millis) {
+      within(500.millis) {
         ignoreMsg {
           case msg: String => msg != "something"
         }
diff --git a/docs/src/test/scala/docs/testkit/TestkitDocSpec.scala b/docs/src/test/scala/docs/testkit/TestkitDocSpec.scala
index 93a1b92ff9..0f63079800 100644
--- a/docs/src/test/scala/docs/testkit/TestkitDocSpec.scala
+++ b/docs/src/test/scala/docs/testkit/TestkitDocSpec.scala
@@ -164,7 +164,7 @@ class TestKitDocSpec extends PekkoSpec with DefaultTimeout with ImplicitSender {
     assert(fsm.stateName == 1)
 
     assert(fsm.isTimerActive("test") == false)
-    fsm.startTimerWithFixedDelay("test", 12, 10 millis)
+    fsm.startTimerWithFixedDelay("test", 12, 10.millis)
     assert(fsm.isTimerActive("test") == true)
     fsm.cancelTimer("test")
     assert(fsm.isTimerActive("test") == false)
@@ -191,7 +191,7 @@ class TestKitDocSpec extends PekkoSpec with DefaultTimeout with ImplicitSender {
     system.eventStream.subscribe(testActor, classOf[UnhandledMessage])
     val ref = TestActorRef[MyActor]
     ref.receive(Unknown)
-    expectMsg(1 second, UnhandledMessage(Unknown, system.deadLetters, ref))
+    expectMsg(1.second, UnhandledMessage(Unknown, system.deadLetters, ref))
     // #test-unhandled
   }
 
@@ -215,7 +215,7 @@ class TestKitDocSpec extends PekkoSpec with DefaultTimeout with ImplicitSender {
     import scala.concurrent.duration._
 
     val worker = system.actorOf(Props[Worker]())
-    within(200 millis) {
+    within(200.millis) {
       worker ! "some work"
       expectMsg("some result")
       expectNoMessage() // will block for the rest of the 200ms
@@ -239,8 +239,8 @@ class TestKitDocSpec extends PekkoSpec with DefaultTimeout with ImplicitSender {
     val actor = system.actorOf(Props[MyDoubleEcho]())
     actor ! ((probe1.ref, probe2.ref))
     actor ! "hello"
-    probe1.expectMsg(500 millis, "hello")
-    probe2.expectMsg(500 millis, "hello")
+    probe1.expectMsg(500.millis, "hello")
+    probe2.expectMsg(500.millis, "hello")
     // #test-probe
 
     // #test-special-probe
@@ -285,7 +285,7 @@ class TestKitDocSpec extends PekkoSpec with DefaultTimeout with ImplicitSender {
     // #test-probe-reply
     val probe = TestProbe()
     val future = probe.ref ? "hello"
-    probe.expectMsg(0 millis, "hello") // TestActor runs on CallingThreadDispatcher
+    probe.expectMsg(0.millis, "hello") // TestActor runs on CallingThreadDispatcher
     probe.reply("world")
     assert(future.isCompleted && future.value.contains(Success("world")))
     // #test-probe-reply
@@ -372,7 +372,7 @@ class TestKitDocSpec extends PekkoSpec with DefaultTimeout with ImplicitSender {
     intercept[AssertionError] {
       // #test-within-probe
       val probe = TestProbe()
-      within(1 second) {
+      within(1.second) {
         probe.expectMsg("hello")
       }
       // #test-within-probe
diff --git a/multi-node-testkit/src/main/scala/org/apache/pekko/remote/testconductor/Conductor.scala b/multi-node-testkit/src/main/scala/org/apache/pekko/remote/testconductor/Conductor.scala
index 6062023843..0762a21f84 100644
--- a/multi-node-testkit/src/main/scala/org/apache/pekko/remote/testconductor/Conductor.scala
+++ b/multi-node-testkit/src/main/scala/org/apache/pekko/remote/testconductor/Conductor.scala
@@ -371,7 +371,7 @@ private[pekko] class ServerFSM(val controller: ActorRef, val channel: Channel)
       channel.close()
   }
 
-  when(Initial, stateTimeout = 10 seconds) {
+  when(Initial, stateTimeout = 10.seconds) {
     case Event(Hello(name, address), _) =>
       roleName = RoleName(name)
       controller ! NodeInfo(roleName, address, self)
diff --git a/persistence-typed/src/main/scala/org/apache/pekko/persistence/typed/javadsl/CommandHandlerWithReply.scala b/persistence-typed/src/main/scala/org/apache/pekko/persistence/typed/javadsl/CommandHandlerWithReply.scala
index 4d9a1440d0..14fc4b540a 100644
--- a/persistence-typed/src/main/scala/org/apache/pekko/persistence/typed/javadsl/CommandHandlerWithReply.scala
+++ b/persistence-typed/src/main/scala/org/apache/pekko/persistence/typed/javadsl/CommandHandlerWithReply.scala
@@ -252,7 +252,8 @@ final class CommandHandlerWithReplyBuilderByState[Command, Event, S <: State, St
    */
   def onCommand(predicate: Predicate[Command], handler: JFunction[Command, ReplyEffect[Event, State]])
       : CommandHandlerWithReplyBuilderByState[Command, Event, S, State] = {
-    addCase(cmd => predicate.test(cmd),
+    addCase(
+      cmd => predicate.test(cmd),
       new BiFunction[S, Command, ReplyEffect[Event, State]] {
         override def apply(state: S, cmd: Command): ReplyEffect[Event, State] = handler(cmd)
       })
diff --git a/persistence/src/test/scala/org/apache/pekko/persistence/AtLeastOnceDeliveryFailureSpec.scala b/persistence/src/test/scala/org/apache/pekko/persistence/AtLeastOnceDeliveryFailureSpec.scala
index 5b405b495c..1d5db7a7ff 100644
--- a/persistence/src/test/scala/org/apache/pekko/persistence/AtLeastOnceDeliveryFailureSpec.scala
+++ b/persistence/src/test/scala/org/apache/pekko/persistence/AtLeastOnceDeliveryFailureSpec.scala
@@ -199,6 +199,6 @@ class AtLeastOnceDeliveryFailureSpec
   }
 
   def expectDone() = within(numMessages.seconds) {
-    expectMsgType[Done].ints.sorted should ===(1 to numMessages toVector)
+    expectMsgType[Done].ints.sorted should ===((1 to numMessages).toVector)
   }
 }
diff --git a/persistence/src/test/scala/org/apache/pekko/persistence/SnapshotFailureRobustnessSpec.scala b/persistence/src/test/scala/org/apache/pekko/persistence/SnapshotFailureRobustnessSpec.scala
index 0369188db9..e37047c656 100644
--- a/persistence/src/test/scala/org/apache/pekko/persistence/SnapshotFailureRobustnessSpec.scala
+++ b/persistence/src/test/scala/org/apache/pekko/persistence/SnapshotFailureRobustnessSpec.scala
@@ -146,7 +146,7 @@ class SnapshotFailureRobustnessSpec
         }
         expectMsg("kablama-2")
         expectMsg(RecoveryCompleted)
-        expectNoMessage(1 second)
+        expectNoMessage(1.second)
       } finally {
         system.eventStream.unsubscribe(testActor, classOf[Logging.Error])
         system.eventStream.publish(TestEvent.UnMute(EventFilter.error(start = "Error loading snapshot [")))
diff --git a/persistence/src/test/scala/org/apache/pekko/persistence/fsm/PersistentFSMSpec.scala b/persistence/src/test/scala/org/apache/pekko/persistence/fsm/PersistentFSMSpec.scala
index 6b1a9c5eab..65e5be7c49 100644
--- a/persistence/src/test/scala/org/apache/pekko/persistence/fsm/PersistentFSMSpec.scala
+++ b/persistence/src/test/scala/org/apache/pekko/persistence/fsm/PersistentFSMSpec.scala
@@ -62,7 +62,7 @@ abstract class PersistentFSMSpec(config: Config) extends PersistenceSpec(config)
       expectMsg(CurrentState(fsmRef, LookingAround, None))
       expectMsg(EmptyShoppingCart)
 
-      expectMsg(Transition(fsmRef, LookingAround, Shopping, Some(1 second)))
+      expectMsg(Transition(fsmRef, LookingAround, Shopping, Some(1.second)))
       expectMsg(NonEmptyShoppingCart(List(shirt)))
       expectMsg(NonEmptyShoppingCart(List(shirt, shoes)))
       expectMsg(NonEmptyShoppingCart(List(shirt, shoes, coat)))
@@ -88,11 +88,11 @@ abstract class PersistentFSMSpec(config: Config) extends PersistenceSpec(config)
 
       expectMsg(CurrentState(fsmRef, LookingAround, None))
 
-      expectMsg(Transition(fsmRef, LookingAround, Shopping, Some(1 second)))
+      expectMsg(Transition(fsmRef, LookingAround, Shopping, Some(1.second)))
 
       val adjustedMin = 1.second - (System.nanoTime - before).nanos
       within(min = adjustedMin, max = remainingOrDefault) {
-        expectMsg(Transition(fsmRef, Shopping, Inactive, Some(2 seconds)))
+        expectMsg(Transition(fsmRef, Shopping, Inactive, Some(2.seconds)))
       }
 
       expectTerminated(fsmRef)
@@ -118,7 +118,7 @@ abstract class PersistentFSMSpec(config: Config) extends PersistenceSpec(config)
       expectMsg(CurrentState(fsmRef, LookingAround, None))
       expectMsg(EmptyShoppingCart)
 
-      expectMsg(Transition(fsmRef, LookingAround, Shopping, Some(1 second)))
+      expectMsg(Transition(fsmRef, LookingAround, Shopping, Some(1.second)))
       expectMsg(NonEmptyShoppingCart(List(shirt)))
       expectMsg(NonEmptyShoppingCart(List(shirt, shoes)))
 
@@ -138,7 +138,7 @@ abstract class PersistentFSMSpec(config: Config) extends PersistenceSpec(config)
       recoveredFsmRef ! GetCurrentCart
       recoveredFsmRef ! Leave
 
-      expectMsg(CurrentState(recoveredFsmRef, Shopping, Some(1 second)))
+      expectMsg(CurrentState(recoveredFsmRef, Shopping, Some(1.second)))
       expectMsg(NonEmptyShoppingCart(List(shirt, shoes)))
 
       expectMsg(NonEmptyShoppingCart(List(shirt, shoes, coat)))
@@ -168,7 +168,7 @@ abstract class PersistentFSMSpec(config: Config) extends PersistenceSpec(config)
       fsmRef ! Leave
 
       expectMsg(CurrentState(fsmRef, LookingAround, None))
-      expectMsg(Transition(fsmRef, LookingAround, Shopping, Some(1 second)))
+      expectMsg(Transition(fsmRef, LookingAround, Shopping, Some(1.second)))
       expectMsg(Transition(fsmRef, Shopping, Paid, None))
       reportActorProbe.expectMsg(PurchaseWasMade(List(shirt, shoes, coat)))
       expectTerminated(fsmRef)
@@ -192,7 +192,7 @@ abstract class PersistentFSMSpec(config: Config) extends PersistenceSpec(config)
       fsmRef ! Leave
 
       expectMsg(CurrentState(fsmRef, LookingAround, None))
-      expectMsg(Transition(fsmRef, LookingAround, Shopping, Some(1 second)))
+      expectMsg(Transition(fsmRef, LookingAround, Shopping, Some(1.second)))
       reportActorProbe.expectMsg(ShoppingCardDiscarded)
       expectTerminated(fsmRef)
     }
@@ -209,9 +209,9 @@ abstract class PersistentFSMSpec(config: Config) extends PersistenceSpec(config)
       fsmRef ! AddItem(shirt)
 
       expectMsg(CurrentState(fsmRef, LookingAround, None))
-      expectMsg(Transition(fsmRef, LookingAround, Shopping, Some(1 second)))
+      expectMsg(Transition(fsmRef, LookingAround, Shopping, Some(1.second)))
 
-      expectNoMessage(0.6 seconds) // arbitrarily chosen delay, less than the timeout, before stopping the FSM
+      expectNoMessage(0.6.seconds) // arbitrarily chosen delay, less than the timeout, before stopping the FSM
       fsmRef ! PoisonPill
       expectTerminated(fsmRef)
 
@@ -221,14 +221,14 @@ abstract class PersistentFSMSpec(config: Config) extends PersistenceSpec(config)
 
       // this isn't when it got into that state, but close enough
       val before = System.nanoTime
-      expectMsg(CurrentState(recoveredFsmRef, Shopping, Some(1 second)))
+      expectMsg(CurrentState(recoveredFsmRef, Shopping, Some(1.second)))
 
       val adjustedMin = 1.second - (System.nanoTime - before).nanos
       within(min = adjustedMin, max = remainingOrDefault) {
-        expectMsg(Transition(recoveredFsmRef, Shopping, Inactive, Some(2 seconds)))
+        expectMsg(Transition(recoveredFsmRef, Shopping, Inactive, Some(2.seconds)))
       }
 
-      expectNoMessage(0.6 seconds) // arbitrarily chosen delay, less than the timeout, before stopping the FSM
+      expectNoMessage(0.6.seconds) // arbitrarily chosen delay, less than the timeout, before stopping the FSM
       recoveredFsmRef ! PoisonPill
       expectTerminated(recoveredFsmRef)
 
@@ -236,7 +236,7 @@ abstract class PersistentFSMSpec(config: Config) extends PersistenceSpec(config)
       watch(recoveredFsmRef)
       recoveredFsmRef ! SubscribeTransitionCallBack(testActor)
 
-      expectMsg(CurrentState(recoveredFsmRef, Inactive, Some(2 seconds)))
+      expectMsg(CurrentState(recoveredFsmRef, Inactive, Some(2.seconds)))
       expectTerminated(recoveredFsmRef)
     }
 
@@ -330,7 +330,7 @@ abstract class PersistentFSMSpec(config: Config) extends PersistenceSpec(config)
       expectMsg(NonEmptyShoppingCart(List(shirt, shoes, coat)))
 
       expectMsg(NonEmptyShoppingCart(List(shirt, shoes, coat)))
-      expectNoMessage(1 second)
+      expectNoMessage(1.second)
 
       fsmRef ! PoisonPill
       expectTerminated(fsmRef)
@@ -499,14 +499,14 @@ object PersistentFSMSpec {
 
     when(LookingAround) {
       case Event(AddItem(item), _) =>
-        goto(Shopping).applying(ItemAdded(item)).forMax(1 seconds)
+        goto(Shopping).applying(ItemAdded(item)).forMax(1.seconds)
       case Event(GetCurrentCart, data) =>
         stay().replying(data)
     }
 
     when(Shopping) {
       case Event(AddItem(item), _) =>
-        stay().applying(ItemAdded(item)).forMax(1 seconds)
+        stay().applying(ItemAdded(item)).forMax(1.seconds)
       case Event(Buy, _) =>
         // #customer-andthen-example
         goto(Paid).applying(OrderExecuted).andThen {
@@ -529,12 +529,12 @@ object PersistentFSMSpec {
       case Event(GetCurrentCart, data) =>
         stay().replying(data)
       case Event(StateTimeout, _) =>
-        goto(Inactive).forMax(2 seconds)
+        goto(Inactive).forMax(2.seconds)
     }
 
     when(Inactive) {
       case Event(AddItem(item), _) =>
-        goto(Shopping).applying(ItemAdded(item)).forMax(1 seconds)
+        goto(Shopping).applying(ItemAdded(item)).forMax(1.seconds)
       case Event(StateTimeout, _) =>
         stop().applying(OrderDiscarded).andThen {
           case _ => reportActor ! ShoppingCardDiscarded
diff --git a/remote-tests/src/multi-jvm/scala/org/apache/pekko/remote/NewRemoteActorSpec.scala b/remote-tests/src/multi-jvm/scala/org/apache/pekko/remote/NewRemoteActorSpec.scala
index eea6869942..2a8932eceb 100644
--- a/remote-tests/src/multi-jvm/scala/org/apache/pekko/remote/NewRemoteActorSpec.scala
+++ b/remote-tests/src/multi-jvm/scala/org/apache/pekko/remote/NewRemoteActorSpec.scala
@@ -122,7 +122,7 @@ abstract class NewRemoteActorSpec(multiNodeConfig: NewRemoteActorMultiJvmSpec)
       enterBarrier("done")
     }
 
-    "be able to shutdown system when using remote deployed actor" in within(20 seconds) {
+    "be able to shutdown system when using remote deployed actor" in within(20.seconds) {
       runOn(leader) {
         val actor = system.actorOf(Props[SomeActor](), "service-hello3")
         actor.isInstanceOf[RemoteActorRef] should ===(true)
diff --git a/remote-tests/src/multi-jvm/scala/org/apache/pekko/remote/RemoteDeliverySpec.scala b/remote-tests/src/multi-jvm/scala/org/apache/pekko/remote/RemoteDeliverySpec.scala
index 1a209b4d8c..191254d8c0 100644
--- a/remote-tests/src/multi-jvm/scala/org/apache/pekko/remote/RemoteDeliverySpec.scala
+++ b/remote-tests/src/multi-jvm/scala/org/apache/pekko/remote/RemoteDeliverySpec.scala
@@ -63,7 +63,7 @@ abstract class RemoteDeliverySpec(multiNodeConfig: RemoteDeliveryConfig)
 
   override def initialParticipants = roles.size
 
-  def identify(role: RoleName, actorName: String): ActorRef = within(10 seconds) {
+  def identify(role: RoleName, actorName: String): ActorRef = within(10.seconds) {
     system.actorSelection(node(role) / "user" / actorName) ! Identify(actorName)
     expectMsgType[ActorIdentity].ref.get
   }
diff --git a/remote-tests/src/multi-jvm/scala/org/apache/pekko/remote/RemoteDeploymentDeathWatchSpec.scala b/remote-tests/src/multi-jvm/scala/org/apache/pekko/remote/RemoteDeploymentDeathWatchSpec.scala
index 301cdcc307..a3a4683f5b 100644
--- a/remote-tests/src/multi-jvm/scala/org/apache/pekko/remote/RemoteDeploymentDeathWatchSpec.scala
+++ b/remote-tests/src/multi-jvm/scala/org/apache/pekko/remote/RemoteDeploymentDeathWatchSpec.scala
@@ -92,7 +92,7 @@ abstract class RemoteDeploymentDeathWatchSpec(multiNodeConfig: RemoteDeploymentD
 
   "An actor system that deploys actors on another node" must {
 
-    "be able to shutdown when remote node crash" taggedAs LongRunningTest in within(20 seconds) {
+    "be able to shutdown when remote node crash" taggedAs LongRunningTest in within(20.seconds) {
       runOn(second) {
         // remote deployment to third
         val hello = system.actorOf(Props[Hello](), "hello")
diff --git a/remote-tests/src/multi-jvm/scala/org/apache/pekko/remote/RemoteNodeDeathWatchSpec.scala b/remote-tests/src/multi-jvm/scala/org/apache/pekko/remote/RemoteNodeDeathWatchSpec.scala
index 77a4a3d3ac..08bea73a62 100644
--- a/remote-tests/src/multi-jvm/scala/org/apache/pekko/remote/RemoteNodeDeathWatchSpec.scala
+++ b/remote-tests/src/multi-jvm/scala/org/apache/pekko/remote/RemoteNodeDeathWatchSpec.scala
@@ -146,7 +146,7 @@ abstract class RemoteNodeDeathWatchSpec(multiNodeConfig: RemoteNodeDeathWatchCon
 
         val subject = identify(second, "subject1")
         watcher ! WatchIt(subject)
-        expectMsg(1 second, Ack)
+        expectMsg(1.second, Ack)
         subject ! "hello1"
         enterBarrier("hello1-message-sent")
         enterBarrier("watch-established-1")
@@ -160,7 +160,7 @@ abstract class RemoteNodeDeathWatchSpec(multiNodeConfig: RemoteNodeDeathWatchCon
         enterBarrier("actors-started-1")
 
         enterBarrier("hello1-message-sent")
-        expectMsg(3 seconds, "hello1")
+        expectMsg(3.seconds, "hello1")
         enterBarrier("watch-established-1")
 
         sleep()
@@ -190,12 +190,12 @@ abstract class RemoteNodeDeathWatchSpec(multiNodeConfig: RemoteNodeDeathWatchCon
 
         val subject = identify(second, "subject2")
         watcher ! WatchIt(subject)
-        expectMsg(1 second, Ack)
+        expectMsg(1.second, Ack)
         enterBarrier("watch-2")
 
         sleep()
         watcher ! UnwatchIt(subject)
-        expectMsg(1 second, Ack)
+        expectMsg(1.second, Ack)
         enterBarrier("unwatch-2")
       }
 
@@ -225,12 +225,12 @@ abstract class RemoteNodeDeathWatchSpec(multiNodeConfig: RemoteNodeDeathWatchCon
         val other = if (myself == first) second else first
         val subject = identify(other, "subject3")
         watcher ! WatchIt(subject)
-        expectMsg(1 second, Ack)
+        expectMsg(1.second, Ack)
         enterBarrier("watch-3")
 
         sleep()
         watcher ! UnwatchIt(subject)
-        expectMsg(1 second, Ack)
+        expectMsg(1.second, Ack)
         enterBarrier("unwatch-3")
       }
 
@@ -260,17 +260,17 @@ abstract class RemoteNodeDeathWatchSpec(multiNodeConfig: RemoteNodeDeathWatchCon
         val subject1 = identify(other, "s1")
         val subject2 = identify(other, "s2")
         watcher1 ! WatchIt(subject1)
-        expectMsg(1 second, Ack)
+        expectMsg(1.second, Ack)
         watcher2 ! WatchIt(subject2)
-        expectMsg(1 second, Ack)
+        expectMsg(1.second, Ack)
         enterBarrier("watch-4")
 
         sleep()
         watcher1 ! UnwatchIt(subject1)
-        expectMsg(1 second, Ack)
+        expectMsg(1.second, Ack)
         enterBarrier("unwatch-s1-4")
         system.stop(s1)
-        expectNoMessage(2 seconds)
+        expectNoMessage(2.seconds)
         enterBarrier("stop-s1-4")
 
         system.stop(s2)
@@ -308,16 +308,16 @@ abstract class RemoteNodeDeathWatchSpec(multiNodeConfig: RemoteNodeDeathWatchCon
         val b3 = identify(second, "b3")
 
         a1 ! WatchIt(b1)
-        expectMsg(1 second, Ack)
+        expectMsg(1.second, Ack)
         a1 ! WatchIt(b2)
-        expectMsg(1 second, Ack)
+        expectMsg(1.second, Ack)
         a2 ! WatchIt(b2)
-        expectMsg(1 second, Ack)
+        expectMsg(1.second, Ack)
         a3 ! WatchIt(b3)
-        expectMsg(1 second, Ack)
+        expectMsg(1.second, Ack)
         sleep()
         a2 ! UnwatchIt(b2)
-        expectMsg(1 second, Ack)
+        expectMsg(1.second, Ack)
 
         enterBarrier("watch-established-5")
 
@@ -347,33 +347,33 @@ abstract class RemoteNodeDeathWatchSpec(multiNodeConfig: RemoteNodeDeathWatchCon
         val a3 = identify(first, "a3")
 
         b1 ! WatchIt(a1)
-        expectMsg(1 second, Ack)
+        expectMsg(1.second, Ack)
         b1 ! WatchIt(a2)
-        expectMsg(1 second, Ack)
+        expectMsg(1.second, Ack)
         b2 ! WatchIt(a2)
-        expectMsg(1 second, Ack)
+        expectMsg(1.second, Ack)
         b3 ! WatchIt(a3)
-        expectMsg(1 second, Ack)
+        expectMsg(1.second, Ack)
         b3 ! WatchIt(a3)
-        expectMsg(1 second, Ack)
+        expectMsg(1.second, Ack)
         sleep()
         b2 ! UnwatchIt(a2)
-        expectMsg(1 second, Ack)
+        expectMsg(1.second, Ack)
 
         enterBarrier("watch-established-5")
         enterBarrier("stopped-5")
 
-        p1.receiveN(2, 5 seconds).collect { case WrappedTerminated(t) => t.actor }.toSet should ===(Set(a1, a2))
-        p3.expectMsgType[WrappedTerminated](5 seconds).t.actor should ===(a3)
-        p2.expectNoMessage(2 seconds)
+        p1.receiveN(2, 5.seconds).collect { case WrappedTerminated(t) => t.actor }.toSet should ===(Set(a1, a2))
+        p3.expectMsgType[WrappedTerminated](5.seconds).t.actor should ===(a3)
+        p2.expectNoMessage(2.seconds)
         enterBarrier("terminated-verified-5")
 
         // verify that things are cleaned up, and heartbeating is stopped
         assertCleanup()
         expectNoMessage(2.seconds)
-        p1.expectNoMessage(100 millis)
-        p2.expectNoMessage(100 millis)
-        p3.expectNoMessage(100 millis)
+        p1.expectNoMessage(100.millis)
+        p2.expectNoMessage(100.millis)
+        p3.expectNoMessage(100.millis)
         assertCleanup()
       }
 
@@ -395,15 +395,15 @@ abstract class RemoteNodeDeathWatchSpec(multiNodeConfig: RemoteNodeDeathWatchCon
 
         val subject = identify(second, "subject6")
         watcher ! WatchIt(subject)
-        expectMsg(1 second, Ack)
+        expectMsg(1.second, Ack)
         watcher2 ! WatchIt(subject)
-        expectMsg(1 second, Ack)
+        expectMsg(1.second, Ack)
         subject ! "hello6"
 
         // testing with this watch/unwatch of watcher2 to make sure that the unwatch doesn't
         // remove the first watch
         watcher2 ! UnwatchIt(subject)
-        expectMsg(1 second, Ack)
+        expectMsg(1.second, Ack)
 
         enterBarrier("watch-established-6")
 
@@ -411,7 +411,7 @@ abstract class RemoteNodeDeathWatchSpec(multiNodeConfig: RemoteNodeDeathWatchCon
 
         log.info("exit second")
         testConductor.exit(second, 0).await
-        expectMsgType[WrappedTerminated](15 seconds).t.actor should ===(subject)
+        expectMsgType[WrappedTerminated](15.seconds).t.actor should ===(subject)
 
         // verify that things are cleaned up, and heartbeating is stopped
         assertCleanup()
@@ -423,7 +423,7 @@ abstract class RemoteNodeDeathWatchSpec(multiNodeConfig: RemoteNodeDeathWatchCon
         system.actorOf(Props(classOf[ProbeActor], testActor), "subject6")
         enterBarrier("actors-started-6")
 
-        expectMsg(3 seconds, "hello6")
+        expectMsg(3.seconds, "hello6")
         enterBarrier("watch-established-6")
       }
 
@@ -442,7 +442,7 @@ abstract class RemoteNodeDeathWatchSpec(multiNodeConfig: RemoteNodeDeathWatchCon
 
         val subject = identify(first, "subject7")
         watcher ! WatchIt(subject)
-        expectMsg(1 second, Ack)
+        expectMsg(1.second, Ack)
         subject ! "hello7"
         enterBarrier("watch-established-7")
       }
@@ -451,7 +451,7 @@ abstract class RemoteNodeDeathWatchSpec(multiNodeConfig: RemoteNodeDeathWatchCon
         system.actorOf(Props(classOf[ProbeActor], testActor), "subject7")
         enterBarrier("actors-started-7")
 
-        expectMsg(3 seconds, "hello7")
+        expectMsg(3.seconds, "hello7")
         enterBarrier("watch-established-7")
 
         sleep()
@@ -459,7 +459,7 @@ abstract class RemoteNodeDeathWatchSpec(multiNodeConfig: RemoteNodeDeathWatchCon
         testConductor.exit(third, 0).await
 
         // verify that things are cleaned up, and heartbeating is stopped
-        assertCleanup(20 seconds)
+        assertCleanup(20.seconds)
         expectNoMessage(2.seconds)
         assertCleanup()
       }
diff --git a/remote-tests/src/multi-jvm/scala/org/apache/pekko/remote/artery/RemoteRestartedQuarantinedSpec.scala b/remote-tests/src/multi-jvm/scala/org/apache/pekko/remote/artery/RemoteRestartedQuarantinedSpec.scala
index e7bf806767..3b4b12a3aa 100644
--- a/remote-tests/src/multi-jvm/scala/org/apache/pekko/remote/artery/RemoteRestartedQuarantinedSpec.scala
+++ b/remote-tests/src/multi-jvm/scala/org/apache/pekko/remote/artery/RemoteRestartedQuarantinedSpec.scala
@@ -110,7 +110,7 @@ abstract class RemoteRestartedQuarantinedSpec extends RemotingMultiNodeSpec(Remo
         enterBarrier("before-quarantined")
         enterBarrier("quarantined")
 
-        expectMsgPF(10 seconds) {
+        expectMsgPF(10.seconds) {
           case ThisActorSystemQuarantinedEvent(_, _) =>
         }
 
diff --git a/remote-tests/src/multi-jvm/scala/org/apache/pekko/remote/classic/RemoteNodeShutdownAndComesBackSpec.scala b/remote-tests/src/multi-jvm/scala/org/apache/pekko/remote/classic/RemoteNodeShutdownAndComesBackSpec.scala
index f0b14b0d23..fa13980463 100644
--- a/remote-tests/src/multi-jvm/scala/org/apache/pekko/remote/classic/RemoteNodeShutdownAndComesBackSpec.scala
+++ b/remote-tests/src/multi-jvm/scala/org/apache/pekko/remote/classic/RemoteNodeShutdownAndComesBackSpec.scala
@@ -114,7 +114,7 @@ abstract class RemoteNodeShutdownAndComesBackSpec extends RemotingMultiNodeSpec(
           awaitAssert {
             val p = TestProbe()
             system.actorSelection(RootActorPath(secondAddress) / "user" / "subject").tell(Identify("subject"), p.ref)
-            p.expectMsgPF(1 second) {
+            p.expectMsgPF(1.second) {
               case ActorIdentity("subject", Some(_)) => true
             }
           }
diff --git a/remote-tests/src/multi-jvm/scala/org/apache/pekko/remote/routing/RemoteRoundRobinSpec.scala b/remote-tests/src/multi-jvm/scala/org/apache/pekko/remote/routing/RemoteRoundRobinSpec.scala
index 9266aaa57b..a8862e2fc2 100644
--- a/remote-tests/src/multi-jvm/scala/org/apache/pekko/remote/routing/RemoteRoundRobinSpec.scala
+++ b/remote-tests/src/multi-jvm/scala/org/apache/pekko/remote/routing/RemoteRoundRobinSpec.scala
@@ -111,7 +111,7 @@ class RemoteRoundRobinSpec(multiNodeConfig: RemoteRoundRobinConfig)
           actor ! "hit"
         }
 
-        val replies: Map[Address, Int] = receiveWhile(5 seconds, messages = connectionCount * iterationCount) {
+        val replies: Map[Address, Int] = receiveWhile(5.seconds, messages = connectionCount * iterationCount) {
           case ref: ActorRef =>
             info(s"reply from $ref")
             ref.path.address
@@ -136,7 +136,7 @@ class RemoteRoundRobinSpec(multiNodeConfig: RemoteRoundRobinConfig)
   }
 
   "A remote round robin pool with resizer" must {
-    "be locally instantiated on a remote node after several resize rounds" in within(5 seconds) {
+    "be locally instantiated on a remote node after several resize rounds" in within(5.seconds) {
 
       runOn(first, second, third) {
         enterBarrier("start", "broadcast-end", "end")
@@ -199,7 +199,7 @@ class RemoteRoundRobinSpec(multiNodeConfig: RemoteRoundRobinConfig)
           actor ! "hit"
         }
 
-        val replies: Map[Address, Int] = receiveWhile(5 seconds, messages = connectionCount * iterationCount) {
+        val replies: Map[Address, Int] = receiveWhile(5.seconds, messages = connectionCount * iterationCount) {
           case ref: ActorRef => ref.path.address
         }.foldLeft(Map(node(first).address -> 0, node(second).address -> 0, node(third).address -> 0)) {
           case (replyMap, address) => replyMap + (address -> (replyMap(address) + 1))
diff --git a/remote-tests/src/multi-jvm/scala/org/apache/pekko/remote/testconductor/TestConductorSpec.scala b/remote-tests/src/multi-jvm/scala/org/apache/pekko/remote/testconductor/TestConductorSpec.scala
index 5b495779a7..d489e370a5 100644
--- a/remote-tests/src/multi-jvm/scala/org/apache/pekko/remote/testconductor/TestConductorSpec.scala
+++ b/remote-tests/src/multi-jvm/scala/org/apache/pekko/remote/testconductor/TestConductorSpec.scala
@@ -83,8 +83,8 @@ class TestConductorSpec extends RemotingMultiNodeSpec(TestConductorMultiJvmSpec)
         for (i <- 0 to 9) echo ! i
       }
 
-      within(0.5 seconds, 2 seconds) {
-        expectMsg(500 millis, 0)
+      within(0.5.seconds, 2.seconds) {
+        expectMsg(500.millis, 0)
         receiveN(9) should ===(1 to 9)
       }
 
@@ -102,11 +102,11 @@ class TestConductorSpec extends RemotingMultiNodeSpec(TestConductorMultiJvmSpec)
       }
 
       val (min, max) =
-        if (isNode(leader)) (0 seconds, 500 millis)
-        else (0.3 seconds, 3 seconds)
+        if (isNode(leader)) (0.seconds, 500.millis)
+        else (0.3.seconds, 3.seconds)
 
       within(min, max) {
-        expectMsg(500 millis, 10)
+        expectMsg(500.millis, 10)
         receiveN(9) should ===(11 to 19)
       }
 
diff --git a/remote-tests/src/test/scala/org/apache/pekko/remote/testconductor/BarrierSpec.scala b/remote-tests/src/test/scala/org/apache/pekko/remote/testconductor/BarrierSpec.scala
index 55249e13d7..8553fe7612 100644
--- a/remote-tests/src/test/scala/org/apache/pekko/remote/testconductor/BarrierSpec.scala
+++ b/remote-tests/src/test/scala/org/apache/pekko/remote/testconductor/BarrierSpec.scala
@@ -60,9 +60,9 @@ class BarrierSpec extends PekkoSpec(BarrierSpec.config) with ImplicitSender {
       val b = getBarrier()
       b ! NodeInfo(A, AddressFromURIString("pekko://sys"), system.deadLetters)
       b ! ClientDisconnected(B)
-      expectNoMessage(1 second)
+      expectNoMessage(1.second)
       b ! ClientDisconnected(A)
-      expectNoMessage(1 second)
+      expectNoMessage(1.second)
     }
 
     "fail entering barrier when nobody registered" taggedAs TimingTest in {
@@ -78,7 +78,7 @@ class BarrierSpec extends PekkoSpec(BarrierSpec.config) with ImplicitSender {
       barrier ! NodeInfo(B, AddressFromURIString("pekko://sys"), b.ref)
       a.send(barrier, EnterBarrier("bar2", None))
       noMsg(a, b)
-      within(2 seconds) {
+      within(2.seconds) {
         b.send(barrier, EnterBarrier("bar2", None))
         a.expectMsg(ToClient(BarrierResult("bar2", true)))
         b.expectMsg(ToClient(BarrierResult("bar2", true)))
@@ -94,7 +94,7 @@ class BarrierSpec extends PekkoSpec(BarrierSpec.config) with ImplicitSender {
       barrier ! NodeInfo(C, AddressFromURIString("pekko://sys"), c.ref)
       b.send(barrier, EnterBarrier("bar3", None))
       noMsg(a, b, c)
-      within(2 seconds) {
+      within(2.seconds) {
         c.send(barrier, EnterBarrier("bar3", None))
         a.expectMsg(ToClient(BarrierResult("bar3", true)))
         b.expectMsg(ToClient(BarrierResult("bar3", true)))
@@ -113,12 +113,12 @@ class BarrierSpec extends PekkoSpec(BarrierSpec.config) with ImplicitSender {
       barrier ! RemoveClient(A)
       barrier ! ClientDisconnected(A)
       noMsg(a, b, c)
-      b.within(2 seconds) {
+      b.within(2.seconds) {
         barrier ! RemoveClient(C)
         b.expectMsg(ToClient(BarrierResult("bar4", true)))
       }
       barrier ! ClientDisconnected(C)
-      expectNoMessage(1 second)
+      expectNoMessage(1.second)
     }
 
     "leave barrier when last “arrived” is removed" taggedAs TimingTest in {
@@ -232,7 +232,7 @@ class BarrierSpec extends PekkoSpec(BarrierSpec.config) with ImplicitSender {
       barrier ! nodeB
       a.send(barrier, EnterBarrier("bar10", None))
       EventFilter[BarrierTimeout](occurrences = 1).intercept {
-        val msg = expectMsgType[Failed](7 seconds)
+        val msg = expectMsgType[Failed](7.seconds)
         msg match {
           case Failed(_, thr: BarrierTimeout)
               if thr == BarrierTimeout(Data(Set(nodeA, nodeB), "bar10", a.ref :: Nil, thr.data.deadline)) =>
@@ -263,7 +263,7 @@ class BarrierSpec extends PekkoSpec(BarrierSpec.config) with ImplicitSender {
     }
 
     "finally have no failure messages left" taggedAs TimingTest in {
-      expectNoMessage(1 second)
+      expectNoMessage(1.second)
     }
 
   }
@@ -288,9 +288,9 @@ class BarrierSpec extends PekkoSpec(BarrierSpec.config) with ImplicitSender {
         b ! NodeInfo(A, AddressFromURIString("pekko://sys"), testActor)
         expectMsg(ToClient(Done))
         b ! ClientDisconnected(B)
-        expectNoMessage(1 second)
+        expectNoMessage(1.second)
         b ! ClientDisconnected(A)
-        expectNoMessage(1 second)
+        expectNoMessage(1.second)
       }
     }
 
@@ -310,7 +310,7 @@ class BarrierSpec extends PekkoSpec(BarrierSpec.config) with ImplicitSender {
         b.expectMsg(ToClient(Done))
         a.send(barrier, EnterBarrier("bar11", None))
         noMsg(a, b)
-        within(2 seconds) {
+        within(2.seconds) {
           b.send(barrier, EnterBarrier("bar11", None))
           a.expectMsg(ToClient(BarrierResult("bar11", true)))
           b.expectMsg(ToClient(BarrierResult("bar11", true)))
@@ -330,7 +330,7 @@ class BarrierSpec extends PekkoSpec(BarrierSpec.config) with ImplicitSender {
         c.expectMsg(ToClient(Done))
         b.send(barrier, EnterBarrier("bar12", None))
         noMsg(a, b, c)
-        within(2 seconds) {
+        within(2.seconds) {
           c.send(barrier, EnterBarrier("bar12", None))
           a.expectMsg(ToClient(BarrierResult("bar12", true)))
           b.expectMsg(ToClient(BarrierResult("bar12", true)))
@@ -353,12 +353,12 @@ class BarrierSpec extends PekkoSpec(BarrierSpec.config) with ImplicitSender {
         barrier ! Remove(A)
         barrier ! ClientDisconnected(A)
         noMsg(a, b, c)
-        b.within(2 seconds) {
+        b.within(2.seconds) {
           barrier ! Remove(C)
           b.expectMsg(ToClient(BarrierResult("bar13", true)))
         }
         barrier ! ClientDisconnected(C)
-        expectNoMessage(1 second)
+        expectNoMessage(1.second)
       }
     }
 
@@ -441,7 +441,7 @@ class BarrierSpec extends PekkoSpec(BarrierSpec.config) with ImplicitSender {
         barrier ! nodeB
         a.expectMsg(ToClient(Done))
         b.expectMsg(ToClient(Done))
-        a.send(barrier, EnterBarrier("bar18", Option(2 seconds)))
+        a.send(barrier, EnterBarrier("bar18", Option(2.seconds)))
         EventFilter[BarrierTimeout](occurrences = 1).intercept {
           Thread.sleep(4000)
         }
@@ -490,11 +490,11 @@ class BarrierSpec extends PekkoSpec(BarrierSpec.config) with ImplicitSender {
         barrier ! nodeB
         a.expectMsg(ToClient(Done))
         b.expectMsg(ToClient(Done))
-        a.send(barrier, EnterBarrier("bar20", Option(2 seconds)))
+        a.send(barrier, EnterBarrier("bar20", Option(2.seconds)))
         EventFilter[FailedBarrier](occurrences = 1).intercept {
           b.send(barrier, FailBarrier("bar20"))
           a.expectMsg(ToClient(BarrierResult("bar20", false)))
-          b.expectNoMessage(1 second)
+          b.expectNoMessage(1.second)
         }
         a.send(barrier, EnterBarrier("bar21", None))
         b.send(barrier, EnterBarrier("bar21", None))
@@ -515,8 +515,8 @@ class BarrierSpec extends PekkoSpec(BarrierSpec.config) with ImplicitSender {
         a.expectMsg(ToClient(Done))
         b.expectMsg(ToClient(Done))
         c.expectMsg(ToClient(Done))
-        a.send(barrier, EnterBarrier("bar22", Option(10 seconds)))
-        b.send(barrier, EnterBarrier("bar22", Option(2 seconds)))
+        a.send(barrier, EnterBarrier("bar22", Option(10.seconds)))
+        b.send(barrier, EnterBarrier("bar22", Option(2.seconds)))
         EventFilter[BarrierTimeout](occurrences = 1).intercept {
           Thread.sleep(4000)
         }
@@ -539,8 +539,8 @@ class BarrierSpec extends PekkoSpec(BarrierSpec.config) with ImplicitSender {
         a.expectMsg(ToClient(Done))
         b.expectMsg(ToClient(Done))
         c.expectMsg(ToClient(Done))
-        a.send(barrier, EnterBarrier("bar23", Option(2 seconds)))
-        b.send(barrier, EnterBarrier("bar23", Option(10 seconds)))
+        a.send(barrier, EnterBarrier("bar23", Option(2.seconds)))
+        b.send(barrier, EnterBarrier("bar23", Option(10.seconds)))
         EventFilter[BarrierTimeout](occurrences = 1).intercept {
           Thread.sleep(4000)
         }
@@ -552,7 +552,7 @@ class BarrierSpec extends PekkoSpec(BarrierSpec.config) with ImplicitSender {
     }
 
     "finally have no failure messages left" taggedAs TimingTest in {
-      expectNoMessage(1 second)
+      expectNoMessage(1.second)
     }
 
   }
@@ -592,7 +592,7 @@ class BarrierSpec extends PekkoSpec(BarrierSpec.config) with ImplicitSender {
   }
 
   private def noMsg(probes: TestProbe*): Unit = {
-    expectNoMessage(1 second)
+    expectNoMessage(1.second)
     probes.foreach(_.msgAvailable should ===(false))
   }
 
diff --git a/remote/src/test/scala/org/apache/pekko/remote/RemoteConfigSpec.scala b/remote/src/test/scala/org/apache/pekko/remote/RemoteConfigSpec.scala
index 62434d809e..4daf91943c 100644
--- a/remote/src/test/scala/org/apache/pekko/remote/RemoteConfigSpec.scala
+++ b/remote/src/test/scala/org/apache/pekko/remote/RemoteConfigSpec.scala
@@ -43,21 +43,21 @@ class RemoteConfigSpec extends PekkoSpec("""
       LogSend should ===(false)
       UntrustedMode should ===(false)
       TrustedSelectionPaths should ===(Set.empty[String])
-      ShutdownTimeout.duration should ===(10 seconds)
-      FlushWait should ===(2 seconds)
-      StartupTimeout.duration should ===(10 seconds)
-      RetryGateClosedFor should ===(5 seconds)
+      ShutdownTimeout.duration should ===(10.seconds)
+      FlushWait should ===(2.seconds)
+      StartupTimeout.duration should ===(10.seconds)
+      RetryGateClosedFor should ===(5.seconds)
       Dispatcher should ===("pekko.remote.default-remote-dispatcher")
       UsePassiveConnections should ===(true)
-      BackoffPeriod should ===(5 millis)
+      BackoffPeriod should ===(5.millis)
       LogBufferSizeExceeding should ===(50000)
-      SysMsgAckTimeout should ===(0.3 seconds)
-      SysResendTimeout should ===(2 seconds)
+      SysMsgAckTimeout should ===(0.3.seconds)
+      SysResendTimeout should ===(2.seconds)
       SysResendLimit should ===(200)
       SysMsgBufferSize should ===(20000)
-      InitialSysMsgDeliveryTimeout should ===(3 minutes)
-      QuarantineDuration should ===(5 days)
-      CommandAckTimeout.duration should ===(30 seconds)
+      InitialSysMsgDeliveryTimeout should ===(3.minutes)
+      QuarantineDuration should ===(5.days)
+      CommandAckTimeout.duration should ===(30.seconds)
       Transports.size should ===(1)
       Transports.head._1 should ===(classOf[pekko.remote.transport.netty.NettyTransport].getName)
       Transports.head._2 should ===(Nil)
@@ -67,13 +67,13 @@ class RemoteConfigSpec extends PekkoSpec("""
           "trttl" -> classOf[pekko.remote.transport.ThrottlerProvider].getName))
 
       WatchFailureDetectorImplementationClass should ===(classOf[PhiAccrualFailureDetector].getName)
-      WatchHeartBeatInterval should ===(1 seconds)
-      WatchHeartbeatExpectedResponseAfter should ===(1 seconds)
-      WatchUnreachableReaperInterval should ===(1 second)
+      WatchHeartBeatInterval should ===(1.seconds)
+      WatchHeartbeatExpectedResponseAfter should ===(1.seconds)
+      WatchUnreachableReaperInterval should ===(1.second)
       WatchFailureDetectorConfig.getDouble("threshold") should ===(10.0 +- 0.0001)
       WatchFailureDetectorConfig.getInt("max-sample-size") should ===(200)
-      WatchFailureDetectorConfig.getMillisDuration("acceptable-heartbeat-pause") should ===(10 seconds)
-      WatchFailureDetectorConfig.getMillisDuration("min-std-deviation") should ===(100 millis)
+      WatchFailureDetectorConfig.getMillisDuration("acceptable-heartbeat-pause") should ===(10.seconds)
+      WatchFailureDetectorConfig.getMillisDuration("min-std-deviation") should ===(100.millis)
 
       remoteSettings.config.getString("pekko.remote.classic.log-frame-size-exceeding") should ===("off")
     }
diff --git a/remote/src/test/scala/org/apache/pekko/remote/artery/RemoteWatcherSpec.scala b/remote/src/test/scala/org/apache/pekko/remote/artery/RemoteWatcherSpec.scala
index 8f57457a0d..d1bf527d34 100644
--- a/remote/src/test/scala/org/apache/pekko/remote/artery/RemoteWatcherSpec.scala
+++ b/remote/src/test/scala/org/apache/pekko/remote/artery/RemoteWatcherSpec.scala
@@ -124,48 +124,48 @@ class RemoteWatcherSpec
       monitorA ! Stats
       // (a1->b1), (a1->b2), (a2->b2)
       expectMsg(Stats.counts(watching = 3, watchingNodes = 1))
-      expectNoMessage(100 millis)
+      expectNoMessage(100.millis)
       monitorA ! HeartbeatTick
       expectMsg(ArteryHeartbeat)
-      expectNoMessage(100 millis)
+      expectNoMessage(100.millis)
       monitorA ! HeartbeatTick
       expectMsg(ArteryHeartbeat)
-      expectNoMessage(100 millis)
+      expectNoMessage(100.millis)
       monitorA.tell(heartbeatRspB, monitorB)
       monitorA ! HeartbeatTick
       expectMsg(ArteryHeartbeat)
-      expectNoMessage(100 millis)
+      expectNoMessage(100.millis)
 
       monitorA ! UnwatchRemote(b1, a1)
       // still (a1->b2) and (a2->b2) left
       monitorA ! Stats
       expectMsg(Stats.counts(watching = 2, watchingNodes = 1))
-      expectNoMessage(100 millis)
+      expectNoMessage(100.millis)
       monitorA ! HeartbeatTick
       expectMsg(ArteryHeartbeat)
-      expectNoMessage(100 millis)
+      expectNoMessage(100.millis)
 
       monitorA ! UnwatchRemote(b2, a2)
       // still (a1->b2) left
       monitorA ! Stats
       expectMsg(Stats.counts(watching = 1, watchingNodes = 1))
-      expectNoMessage(100 millis)
+      expectNoMessage(100.millis)
       monitorA ! HeartbeatTick
       expectMsg(ArteryHeartbeat)
-      expectNoMessage(100 millis)
+      expectNoMessage(100.millis)
 
       monitorA ! UnwatchRemote(b2, a1)
       // all unwatched
       monitorA ! Stats
       expectMsg(Stats.empty)
-      expectNoMessage(100 millis)
+      expectNoMessage(100.millis)
       monitorA ! HeartbeatTick
-      expectNoMessage(100 millis)
+      expectNoMessage(100.millis)
       monitorA ! HeartbeatTick
-      expectNoMessage(100 millis)
+      expectNoMessage(100.millis)
 
       // make sure nothing floods over to next test
-      expectNoMessage(2 seconds)
+      expectNoMessage(2.seconds)
     }
 
     "generate AddressTerminated when missing heartbeats" taggedAs LongRunningTest in {
@@ -185,24 +185,24 @@ class RemoteWatcherSpec
       monitorA ! HeartbeatTick
       expectMsg(ArteryHeartbeat)
       monitorA.tell(heartbeatRspB, monitorB)
-      expectNoMessage(1 second)
+      expectNoMessage(1.second)
       monitorA ! HeartbeatTick
       expectMsg(ArteryHeartbeat)
       monitorA.tell(heartbeatRspB, monitorB)
 
-      within(10 seconds) {
+      within(10.seconds) {
         awaitAssert {
           monitorA ! HeartbeatTick
           expectMsg(ArteryHeartbeat)
           // but no HeartbeatRsp
           monitorA ! ReapUnreachableTick
-          p.expectMsg(1 second, TestRemoteWatcher.AddressTerm(b.path.address))
-          q.expectMsg(1 second, TestRemoteWatcher.Quarantined(b.path.address, Some(remoteAddressUid)))
+          p.expectMsg(1.second, TestRemoteWatcher.AddressTerm(b.path.address))
+          q.expectMsg(1.second, TestRemoteWatcher.Quarantined(b.path.address, Some(remoteAddressUid)))
         }
       }
 
       // make sure nothing floods over to next test
-      expectNoMessage(2 seconds)
+      expectNoMessage(2.seconds)
     }
 
     "generate AddressTerminated when missing first heartbeat" taggedAs LongRunningTest in {
@@ -224,20 +224,20 @@ class RemoteWatcherSpec
       expectMsg(ArteryHeartbeat)
       // no HeartbeatRsp sent
 
-      within(20 seconds) {
+      within(20.seconds) {
         awaitAssert {
           monitorA ! HeartbeatTick
           expectMsg(ArteryHeartbeat)
           // but no HeartbeatRsp
           monitorA ! ReapUnreachableTick
-          p.expectMsg(1 second, TestRemoteWatcher.AddressTerm(b.path.address))
+          p.expectMsg(1.second, TestRemoteWatcher.AddressTerm(b.path.address))
           // no real quarantine when missing first heartbeat, uid unknown
-          q.expectMsg(1 second, TestRemoteWatcher.Quarantined(b.path.address, None))
+          q.expectMsg(1.second, TestRemoteWatcher.Quarantined(b.path.address, None))
         }
       }
 
       // make sure nothing floods over to next test
-      expectNoMessage(2 seconds)
+      expectNoMessage(2.seconds)
     }
 
     "generate AddressTerminated for new watch after broken connection that was re-established and broken again" taggedAs LongRunningTest in {
@@ -257,19 +257,19 @@ class RemoteWatcherSpec
       monitorA ! HeartbeatTick
       expectMsg(ArteryHeartbeat)
       monitorA.tell(heartbeatRspB, monitorB)
-      expectNoMessage(1 second)
+      expectNoMessage(1.second)
       monitorA ! HeartbeatTick
       expectMsg(ArteryHeartbeat)
       monitorA.tell(heartbeatRspB, monitorB)
 
-      within(10 seconds) {
+      within(10.seconds) {
         awaitAssert {
           monitorA ! HeartbeatTick
           expectMsg(ArteryHeartbeat)
           // but no HeartbeatRsp
           monitorA ! ReapUnreachableTick
-          p.expectMsg(1 second, TestRemoteWatcher.AddressTerm(b.path.address))
-          q.expectMsg(1 second, TestRemoteWatcher.Quarantined(b.path.address, Some(remoteAddressUid)))
+          p.expectMsg(1.second, TestRemoteWatcher.AddressTerm(b.path.address))
+          q.expectMsg(1.second, TestRemoteWatcher.Quarantined(b.path.address, Some(remoteAddressUid)))
         }
       }
 
@@ -279,7 +279,7 @@ class RemoteWatcherSpec
         monitorA ! Stats
         expectMsg(Stats.empty)
       }
-      expectNoMessage(2 seconds)
+      expectNoMessage(2.seconds)
 
       // assume that connection comes up again, or remote system is restarted
       val c = createRemoteActor(Props[MyActor](), "c6")
@@ -289,37 +289,37 @@ class RemoteWatcherSpec
       monitorA ! HeartbeatTick
       expectMsg(ArteryHeartbeat)
       monitorA.tell(heartbeatRspB, monitorB)
-      expectNoMessage(1 second)
+      expectNoMessage(1.second)
       monitorA ! HeartbeatTick
       expectMsg(ArteryHeartbeat)
       monitorA.tell(heartbeatRspB, monitorB)
       monitorA ! HeartbeatTick
       expectMsg(ArteryHeartbeat)
       monitorA ! ReapUnreachableTick
-      p.expectNoMessage(1 second)
+      p.expectNoMessage(1.second)
       monitorA ! HeartbeatTick
       expectMsg(ArteryHeartbeat)
       monitorA.tell(heartbeatRspB, monitorB)
       monitorA ! HeartbeatTick
       expectMsg(ArteryHeartbeat)
       monitorA ! ReapUnreachableTick
-      p.expectNoMessage(1 second)
-      q.expectNoMessage(1 second)
+      p.expectNoMessage(1.second)
+      q.expectNoMessage(1.second)
 
       // then stop heartbeating again, should generate new AddressTerminated
-      within(10 seconds) {
+      within(10.seconds) {
         awaitAssert {
           monitorA ! HeartbeatTick
           expectMsg(ArteryHeartbeat)
           // but no HeartbeatRsp
           monitorA ! ReapUnreachableTick
-          p.expectMsg(1 second, TestRemoteWatcher.AddressTerm(c.path.address))
-          q.expectMsg(1 second, TestRemoteWatcher.Quarantined(c.path.address, Some(remoteAddressUid)))
+          p.expectMsg(1.second, TestRemoteWatcher.AddressTerm(c.path.address))
+          q.expectMsg(1.second, TestRemoteWatcher.Quarantined(c.path.address, Some(remoteAddressUid)))
         }
       }
 
       // make sure nothing floods over to next test
-      expectNoMessage(2 seconds)
+      expectNoMessage(2.seconds)
     }
 
   }
diff --git a/remote/src/test/scala/org/apache/pekko/remote/classic/RemoteInitErrorSpec.scala b/remote/src/test/scala/org/apache/pekko/remote/classic/RemoteInitErrorSpec.scala
index 5d374eaa11..313be08387 100644
--- a/remote/src/test/scala/org/apache/pekko/remote/classic/RemoteInitErrorSpec.scala
+++ b/remote/src/test/scala/org/apache/pekko/remote/classic/RemoteInitErrorSpec.scala
@@ -62,7 +62,7 @@ class RemoteInitErrorSpec extends AnyWordSpec with Matchers {
         fail("initialization should fail due to invalid IP address")
       } catch {
         case NonFatal(_) => {
-          eventually(timeout(30 seconds), interval(800 milliseconds)) {
+          eventually(timeout(30.seconds), interval(800.milliseconds)) {
             val current = currentThreadIds()
             // no new threads should remain compared to the start state
             (current.diff(start)) should be(empty)
diff --git a/remote/src/test/scala/org/apache/pekko/remote/classic/RemoteWatcherSpec.scala b/remote/src/test/scala/org/apache/pekko/remote/classic/RemoteWatcherSpec.scala
index d5ba9b048f..c1ee2daeef 100644
--- a/remote/src/test/scala/org/apache/pekko/remote/classic/RemoteWatcherSpec.scala
+++ b/remote/src/test/scala/org/apache/pekko/remote/classic/RemoteWatcherSpec.scala
@@ -140,48 +140,48 @@ class RemoteWatcherSpec extends PekkoSpec("""
       monitorA ! Stats
       // (a1->b1), (a1->b2), (a2->b2)
       expectMsg(Stats.counts(watching = 3, watchingNodes = 1))
-      expectNoMessage(100 millis)
+      expectNoMessage(100.millis)
       monitorA ! HeartbeatTick
       expectMsg(Heartbeat)
-      expectNoMessage(100 millis)
+      expectNoMessage(100.millis)
       monitorA ! HeartbeatTick
       expectMsg(Heartbeat)
-      expectNoMessage(100 millis)
+      expectNoMessage(100.millis)
       monitorA.tell(heartbeatRspB, monitorB)
       monitorA ! HeartbeatTick
       expectMsg(Heartbeat)
-      expectNoMessage(100 millis)
+      expectNoMessage(100.millis)
 
       monitorA ! UnwatchRemote(b1, a1)
       // still (a1->b2) and (a2->b2) left
       monitorA ! Stats
       expectMsg(Stats.counts(watching = 2, watchingNodes = 1))
-      expectNoMessage(100 millis)
+      expectNoMessage(100.millis)
       monitorA ! HeartbeatTick
       expectMsg(Heartbeat)
-      expectNoMessage(100 millis)
+      expectNoMessage(100.millis)
 
       monitorA ! UnwatchRemote(b2, a2)
       // still (a1->b2) left
       monitorA ! Stats
       expectMsg(Stats.counts(watching = 1, watchingNodes = 1))
-      expectNoMessage(100 millis)
+      expectNoMessage(100.millis)
       monitorA ! HeartbeatTick
       expectMsg(Heartbeat)
-      expectNoMessage(100 millis)
+      expectNoMessage(100.millis)
 
       monitorA ! UnwatchRemote(b2, a1)
       // all unwatched
       monitorA ! Stats
       expectMsg(Stats.empty)
-      expectNoMessage(100 millis)
+      expectNoMessage(100.millis)
       monitorA ! HeartbeatTick
-      expectNoMessage(100 millis)
+      expectNoMessage(100.millis)
       monitorA ! HeartbeatTick
-      expectNoMessage(100 millis)
+      expectNoMessage(100.millis)
 
       // make sure nothing floods over to next test
-      expectNoMessage(2 seconds)
+      expectNoMessage(2.seconds)
     }
 
     "generate AddressTerminated when missing heartbeats" taggedAs LongRunningTest in {
@@ -201,24 +201,24 @@ class RemoteWatcherSpec extends PekkoSpec("""
       monitorA ! HeartbeatTick
       expectMsg(Heartbeat)
       monitorA.tell(heartbeatRspB, monitorB)
-      expectNoMessage(1 second)
+      expectNoMessage(1.second)
       monitorA ! HeartbeatTick
       expectMsg(Heartbeat)
       monitorA.tell(heartbeatRspB, monitorB)
 
-      within(10 seconds) {
+      within(10.seconds) {
         awaitAssert {
           monitorA ! HeartbeatTick
           expectMsg(Heartbeat)
           // but no HeartbeatRsp
           monitorA ! ReapUnreachableTick
-          p.expectMsg(1 second, TestRemoteWatcher.AddressTerm(b.path.address))
-          q.expectMsg(1 second, TestRemoteWatcher.Quarantined(b.path.address, Some(remoteAddressUid)))
+          p.expectMsg(1.second, TestRemoteWatcher.AddressTerm(b.path.address))
+          q.expectMsg(1.second, TestRemoteWatcher.Quarantined(b.path.address, Some(remoteAddressUid)))
         }
       }
 
       // make sure nothing floods over to next test
-      expectNoMessage(2 seconds)
+      expectNoMessage(2.seconds)
     }
 
     "generate AddressTerminated when missing first heartbeat" taggedAs LongRunningTest in {
@@ -240,20 +240,20 @@ class RemoteWatcherSpec extends PekkoSpec("""
       expectMsg(Heartbeat)
       // no HeartbeatRsp sent
 
-      within(20 seconds) {
+      within(20.seconds) {
         awaitAssert {
           monitorA ! HeartbeatTick
           expectMsg(Heartbeat)
           // but no HeartbeatRsp
           monitorA ! ReapUnreachableTick
-          p.expectMsg(1 second, TestRemoteWatcher.AddressTerm(b.path.address))
+          p.expectMsg(1.second, TestRemoteWatcher.AddressTerm(b.path.address))
           // no real quarantine when missing first heartbeat, uid unknown
-          q.expectMsg(1 second, TestRemoteWatcher.Quarantined(b.path.address, None))
+          q.expectMsg(1.second, TestRemoteWatcher.Quarantined(b.path.address, None))
         }
       }
 
       // make sure nothing floods over to next test
-      expectNoMessage(2 seconds)
+      expectNoMessage(2.seconds)
     }
 
     "generate AddressTerminated for new watch after broken connection that was re-established and broken again" taggedAs LongRunningTest in {
@@ -273,19 +273,19 @@ class RemoteWatcherSpec extends PekkoSpec("""
       monitorA ! HeartbeatTick
       expectMsg(Heartbeat)
       monitorA.tell(heartbeatRspB, monitorB)
-      expectNoMessage(1 second)
+      expectNoMessage(1.second)
       monitorA ! HeartbeatTick
       expectMsg(Heartbeat)
       monitorA.tell(heartbeatRspB, monitorB)
 
-      within(10 seconds) {
+      within(10.seconds) {
         awaitAssert {
           monitorA ! HeartbeatTick
           expectMsg(Heartbeat)
           // but no HeartbeatRsp
           monitorA ! ReapUnreachableTick
-          p.expectMsg(1 second, TestRemoteWatcher.AddressTerm(b.path.address))
-          q.expectMsg(1 second, TestRemoteWatcher.Quarantined(b.path.address, Some(remoteAddressUid)))
+          p.expectMsg(1.second, TestRemoteWatcher.AddressTerm(b.path.address))
+          q.expectMsg(1.second, TestRemoteWatcher.Quarantined(b.path.address, Some(remoteAddressUid)))
         }
       }
 
@@ -295,7 +295,7 @@ class RemoteWatcherSpec extends PekkoSpec("""
         monitorA ! Stats
         expectMsg(Stats.empty)
       }
-      expectNoMessage(2 seconds)
+      expectNoMessage(2.seconds)
 
       // assume that connection comes up again, or remote system is restarted
       val c = createRemoteActor(Props[MyActor](), "c6")
@@ -305,37 +305,37 @@ class RemoteWatcherSpec extends PekkoSpec("""
       monitorA ! HeartbeatTick
       expectMsg(Heartbeat)
       monitorA.tell(heartbeatRspB, monitorB)
-      expectNoMessage(1 second)
+      expectNoMessage(1.second)
       monitorA ! HeartbeatTick
       expectMsg(Heartbeat)
       monitorA.tell(heartbeatRspB, monitorB)
       monitorA ! HeartbeatTick
       expectMsg(Heartbeat)
       monitorA ! ReapUnreachableTick
-      p.expectNoMessage(1 second)
+      p.expectNoMessage(1.second)
       monitorA ! HeartbeatTick
       expectMsg(Heartbeat)
       monitorA.tell(heartbeatRspB, monitorB)
       monitorA ! HeartbeatTick
       expectMsg(Heartbeat)
       monitorA ! ReapUnreachableTick
-      p.expectNoMessage(1 second)
-      q.expectNoMessage(1 second)
+      p.expectNoMessage(1.second)
+      q.expectNoMessage(1.second)
 
       // then stop heartbeating again, should generate new AddressTerminated
-      within(10 seconds) {
+      within(10.seconds) {
         awaitAssert {
           monitorA ! HeartbeatTick
           expectMsg(Heartbeat)
           // but no HeartbeatRsp
           monitorA ! ReapUnreachableTick
-          p.expectMsg(1 second, TestRemoteWatcher.AddressTerm(c.path.address))
-          q.expectMsg(1 second, TestRemoteWatcher.Quarantined(c.path.address, Some(remoteAddressUid)))
+          p.expectMsg(1.second, TestRemoteWatcher.AddressTerm(c.path.address))
+          q.expectMsg(1.second, TestRemoteWatcher.Quarantined(c.path.address, Some(remoteAddressUid)))
         }
       }
 
       // make sure nothing floods over to next test
-      expectNoMessage(2 seconds)
+      expectNoMessage(2.seconds)
     }
 
   }
diff --git a/slf4j/src/test/scala/org/apache/pekko/event/slf4j/Slf4jLoggerSpec.scala b/slf4j/src/test/scala/org/apache/pekko/event/slf4j/Slf4jLoggerSpec.scala
index 612874a0b6..70ab8f7350 100644
--- a/slf4j/src/test/scala/org/apache/pekko/event/slf4j/Slf4jLoggerSpec.scala
+++ b/slf4j/src/test/scala/org/apache/pekko/event/slf4j/Slf4jLoggerSpec.scala
@@ -100,7 +100,7 @@ class Slf4jLoggerSpec extends PekkoSpec(Slf4jLoggerSpec.config) with BeforeAndAf
     "log error with stackTrace" in {
       producer ! new RuntimeException("Simulated error")
 
-      awaitCond(outputString.contains("----"), 5 seconds)
+      awaitCond(outputString.contains("----"), 5.seconds)
       val s = outputString
       s should include("pekkoSource=pekko://Slf4jLoggerSpec/user/logProducer")
       s should include("pekkoAddress=pekko://Slf4jLoggerSpec")
@@ -116,7 +116,7 @@ class Slf4jLoggerSpec extends PekkoSpec(Slf4jLoggerSpec.config) with BeforeAndAf
     "log info with parameters" in {
       producer ! (("test x={} y={}", 3, 17))
 
-      awaitCond(outputString.contains("----"), 5 seconds)
+      awaitCond(outputString.contains("----"), 5.seconds)
       val s = outputString
       s should include("pekkoSource=pekko://Slf4jLoggerSpec/user/logProducer")
       s should include("pekkoAddress=pekko://Slf4jLoggerSpec")
@@ -129,7 +129,7 @@ class Slf4jLoggerSpec extends PekkoSpec(Slf4jLoggerSpec.config) with BeforeAndAf
     "log info with marker" in {
       producer ! StringWithMarker("security-wise interesting message", LogMarker("SECURITY"))
 
-      awaitCond(outputString.contains("----"), 5 seconds)
+      awaitCond(outputString.contains("----"), 5.seconds)
       val s = outputString
       s should include("marker=[SECURITY]")
       s should include("msg=[security-wise interesting message]")
@@ -138,7 +138,7 @@ class Slf4jLoggerSpec extends PekkoSpec(Slf4jLoggerSpec.config) with BeforeAndAf
     "log info with marker and properties" in {
       producer ! StringWithMarker("interesting message", LogMarker("testMarker", Map("p1" -> 1, "p2" -> "B")))
 
-      awaitCond(outputString.contains("----"), 5 seconds)
+      awaitCond(outputString.contains("----"), 5.seconds)
       val s = outputString
       s should include("marker=[testMarker]")
       s should include("p1=1")
@@ -151,7 +151,7 @@ class Slf4jLoggerSpec extends PekkoSpec(Slf4jLoggerSpec.config) with BeforeAndAf
       slf4jMarker.add(MarkerFactory.getMarker("ADDED")) // slf4j markers can have children
       producer ! StringWithSlf4jMarker("security-wise interesting message", slf4jMarker)
 
-      awaitCond(outputString.contains("----"), 5 seconds)
+      awaitCond(outputString.contains("----"), 5.seconds)
       val s = outputString
       s should include("marker=[SLF [ ADDED ]]")
       s should include("msg=[security-wise interesting message]")
@@ -164,7 +164,7 @@ class Slf4jLoggerSpec extends PekkoSpec(Slf4jLoggerSpec.config) with BeforeAndAf
         slf4jMarker,
         Map("ticketNumber" -> 3671, "ticketDesc" -> "Custom MDC Values"))
 
-      awaitCond(outputString.contains("----"), 5 seconds)
+      awaitCond(outputString.contains("----"), 5.seconds)
       val s = outputString
       s should include("marker=[SLF [ ADDED ]]")
       s should include("ticketDesc=Custom MDC Values")
@@ -176,7 +176,7 @@ class Slf4jLoggerSpec extends PekkoSpec(Slf4jLoggerSpec.config) with BeforeAndAf
         "Message with custom MDC values",
         Map("ticketNumber" -> 3671, "ticketDesc" -> "Custom MDC Values"))
 
-      awaitCond(outputString.contains("----"), 5 seconds)
+      awaitCond(outputString.contains("----"), 5.seconds)
       val s = outputString
       s should include("pekkoSource=pekko://Slf4jLoggerSpec/user/logProducer")
       s should include("level=[INFO]")
@@ -189,7 +189,7 @@ class Slf4jLoggerSpec extends PekkoSpec(Slf4jLoggerSpec.config) with BeforeAndAf
     "support null marker" in {
       producer ! StringWithMarker("security-wise interesting message", null)
 
-      awaitCond(outputString.contains("----"), 5 seconds)
+      awaitCond(outputString.contains("----"), 5.seconds)
       val s = outputString
       s should include("msg=[security-wise interesting message]")
     }
@@ -197,7 +197,7 @@ class Slf4jLoggerSpec extends PekkoSpec(Slf4jLoggerSpec.config) with BeforeAndAf
     "Support null values in custom MDC" in {
       producer ! StringWithMDC("Message with null custom MDC values", Map("ticketNumber" -> 3671, "ticketDesc" -> null))
 
-      awaitCond(outputString.contains("----"), 5 seconds)
+      awaitCond(outputString.contains("----"), 5.seconds)
       val s = outputString
       s should include("pekkoSource=pekko://Slf4jLoggerSpec/user/logProducer")
       s should include("level=[INFO]")
@@ -211,7 +211,7 @@ class Slf4jLoggerSpec extends PekkoSpec(Slf4jLoggerSpec.config) with BeforeAndAf
     "include system info in pekkoSource when creating Logging with system" in {
       val log = Logging(system, "org.apache.pekko.event.slf4j.Slf4jLoggerSpec.MyLogSource")
       log.info("test")
-      awaitCond(outputString.contains("----"), 5 seconds)
+      awaitCond(outputString.contains("----"), 5.seconds)
       val s = outputString
       s should include("pekkoSource=org.apache.pekko.event.slf4j.Slf4jLoggerSpec.MyLogSource(pekko://Slf4jLoggerSpec)")
       s should include("logger=[org.apache.pekko.event.slf4j.Slf4jLoggerSpec.MyLogSource(pekko://Slf4jLoggerSpec)]")
@@ -220,7 +220,7 @@ class Slf4jLoggerSpec extends PekkoSpec(Slf4jLoggerSpec.config) with BeforeAndAf
     "not include system info in pekkoSource when creating Logging with system.eventStream" in {
       val log = Logging(system.eventStream, "org.apache.pekko.event.slf4j.Slf4jLoggerSpec.MyLogSource")
       log.info("test")
-      awaitCond(outputString.contains("----"), 5 seconds)
+      awaitCond(outputString.contains("----"), 5.seconds)
       val s = outputString
       s should include("pekkoSource=org.apache.pekko.event.slf4j.Slf4jLoggerSpec.MyLogSource")
       s should include("logger=[org.apache.pekko.event.slf4j.Slf4jLoggerSpec.MyLogSource]")
@@ -229,7 +229,7 @@ class Slf4jLoggerSpec extends PekkoSpec(Slf4jLoggerSpec.config) with BeforeAndAf
     "use short class name and include system info in pekkoSource when creating Logging with system and class" in {
       val log = Logging(system, classOf[MyLogSource])
       log.info("test")
-      awaitCond(outputString.contains("----"), 5 seconds)
+      awaitCond(outputString.contains("----"), 5.seconds)
       val s = outputString
       s should include("pekkoSource=Slf4jLoggerSpec$MyLogSource(pekko://Slf4jLoggerSpec)")
       s should include("logger=[org.apache.pekko.event.slf4j.Slf4jLoggerSpec$MyLogSource]")
@@ -238,7 +238,7 @@ class Slf4jLoggerSpec extends PekkoSpec(Slf4jLoggerSpec.config) with BeforeAndAf
     "use short class name in pekkoSource when creating Logging with system.eventStream and class" in {
       val log = Logging(system.eventStream, classOf[MyLogSource])
       log.info("test")
-      awaitCond(outputString.contains("----"), 5 seconds)
+      awaitCond(outputString.contains("----"), 5.seconds)
       val s = outputString
       s should include("pekkoSource=Slf4jLoggerSpec$MyLogSource")
       s should include("logger=[org.apache.pekko.event.slf4j.Slf4jLoggerSpec$MyLogSource]")
@@ -247,7 +247,7 @@ class Slf4jLoggerSpec extends PekkoSpec(Slf4jLoggerSpec.config) with BeforeAndAf
     "include actorSystem name in sourceActorSystem" in {
       val log = Logging(system.eventStream, classOf[MyLogSource])
       log.info("test")
-      awaitCond(outputString.contains("----"), 5 seconds)
+      awaitCond(outputString.contains("----"), 5.seconds)
       val s = outputString
       s should include("sourceActorSystem=Slf4jLoggerSpec")
     }
diff --git a/stream-tests/src/test/scala/org/apache/pekko/stream/scaladsl/GraphZipLatestSpec.scala b/stream-tests/src/test/scala/org/apache/pekko/stream/scaladsl/GraphZipLatestSpec.scala
index fdea832c4e..13663ae4a0 100644
--- a/stream-tests/src/test/scala/org/apache/pekko/stream/scaladsl/GraphZipLatestSpec.scala
+++ b/stream-tests/src/test/scala/org/apache/pekko/stream/scaladsl/GraphZipLatestSpec.scala
@@ -48,7 +48,7 @@ class GraphZipLatestSpec extends StreamSpec with ScalaCheckPropertyChecks with S
       bools.sendNext(true)
 
       // does not emit yet
-      probe.expectNoMessage(0 seconds)
+      probe.expectNoMessage(0.seconds)
 
       // an element pushed on the other source
       ints.sendNext(1)
@@ -94,7 +94,7 @@ class GraphZipLatestSpec extends StreamSpec with ScalaCheckPropertyChecks with S
 
       // another request does not emit a duplicate
       probe.request(1)
-      probe.expectNoMessage(0 seconds)
+      probe.expectNoMessage(0.seconds)
 
       bools.sendComplete()
       probe.expectComplete()
@@ -116,7 +116,7 @@ class GraphZipLatestSpec extends StreamSpec with ScalaCheckPropertyChecks with S
 
       // another request does not emit a duplicate
       probe.request(1)
-      probe.expectNoMessage(0 seconds)
+      probe.expectNoMessage(0.seconds)
 
       as.sendComplete()
       probe.expectComplete()
diff --git a/stream-tests/src/test/scala/org/apache/pekko/stream/scaladsl/GraphZipLatestWithSpec.scala b/stream-tests/src/test/scala/org/apache/pekko/stream/scaladsl/GraphZipLatestWithSpec.scala
index 6468d9f43e..9e688f1827 100644
--- a/stream-tests/src/test/scala/org/apache/pekko/stream/scaladsl/GraphZipLatestWithSpec.scala
+++ b/stream-tests/src/test/scala/org/apache/pekko/stream/scaladsl/GraphZipLatestWithSpec.scala
@@ -57,7 +57,7 @@ class GraphZipLatestWithSpec extends TwoStreamsSetup {
       RunnableGraph
         .fromGraph(GraphDSL.create() { implicit b =>
           val zipLatest = b.add(ZipLatestWith((_: Int) + (_: Int)))
-          val never = Source.single(3).initialDelay(1 day)
+          val never = Source.single(3).initialDelay(1.day)
           Source(1 to 2).concat(never)        ~> zipLatest.in0
           Source.fromPublisher(upstreamProbe) ~> zipLatest.in1
           zipLatest.out                       ~> Sink.fromSubscriber(downstreamProbe)
@@ -92,7 +92,7 @@ class GraphZipLatestWithSpec extends TwoStreamsSetup {
       RunnableGraph
         .fromGraph(GraphDSL.create() { implicit b =>
           val zip = b.add(ZipLatestWith[Int, Int, Int]((_: Int) / (_: Int)))
-          val never = Source.single(2).initialDelay(1 day)
+          val never = Source.single(2).initialDelay(1.day)
           Source.single(1).concat(never) ~> zip.in0
           Source(-2 to 2)                ~> zip.in1
 
diff --git a/stream-tests/src/test/scala/org/apache/pekko/stream/scaladsl/SinkForeachAsyncSpec.scala b/stream-tests/src/test/scala/org/apache/pekko/stream/scaladsl/SinkForeachAsyncSpec.scala
index dcb2e62b82..79fba2fb91 100644
--- a/stream-tests/src/test/scala/org/apache/pekko/stream/scaladsl/SinkForeachAsyncSpec.scala
+++ b/stream-tests/src/test/scala/org/apache/pekko/stream/scaladsl/SinkForeachAsyncSpec.scala
@@ -121,7 +121,7 @@ class SinkForeachAsyncSpec extends StreamSpec {
       assert(!threeCalled)
       assert(!fourCalled)
 
-      probe.expectNoMessage(2 seconds)
+      probe.expectNoMessage(2.seconds)
 
       latch(2).countDown()
       probe.expectMsg(2)
@@ -129,14 +129,14 @@ class SinkForeachAsyncSpec extends StreamSpec {
       assert(!threeCalled)
       assert(!fourCalled)
 
-      probe.expectNoMessage(2 seconds)
+      probe.expectNoMessage(2.seconds)
 
       latch(3).countDown()
       probe.expectMsg(3)
 
       assert(!fourCalled)
 
-      probe.expectNoMessage(2 seconds)
+      probe.expectNoMessage(2.seconds)
 
       latch(4).countDown()
       probe.expectMsg(4)
diff --git a/stream-typed-tests/src/test/scala/org/apache/pekko/stream/MapAsyncPartitionedSpec.scala b/stream-typed-tests/src/test/scala/org/apache/pekko/stream/MapAsyncPartitionedSpec.scala
index 0b5a01a20b..32943ce071 100644
--- a/stream-typed-tests/src/test/scala/org/apache/pekko/stream/MapAsyncPartitionedSpec.scala
+++ b/stream-typed-tests/src/test/scala/org/apache/pekko/stream/MapAsyncPartitionedSpec.scala
@@ -93,8 +93,8 @@ class MapAsyncPartitionedSpec
   import MapAsyncPartitionedSpec.TestData._
 
   override implicit def patienceConfig: PatienceConfig = PatienceConfig(
-    timeout = 5 seconds,
-    interval = 100 millis)
+    timeout = 5.seconds,
+    interval = 100.millis)
 
   private implicit val system: ActorSystem[_] = ActorSystem(Behaviors.empty, "test-system")
   private implicit val ec: ExecutionContext = ExecutionContext.fromExecutor(Executors.newCachedThreadPool())
@@ -116,11 +116,11 @@ class MapAsyncPartitionedSpec
 
   it should "process elements in parallel by partition" in {
     val elements = List(
-      TestKeyValue(key = 1, delay = 1000 millis, value = "1.a"),
-      TestKeyValue(key = 2, delay = 700 millis, value = "2.a"),
-      TestKeyValue(key = 1, delay = 500 millis, value = "1.b"),
-      TestKeyValue(key = 2, delay = 900 millis, value = "2.b"),
-      TestKeyValue(key = 1, delay = 500 millis, value = "1.c"))
+      TestKeyValue(key = 1, delay = 1000.millis, value = "1.a"),
+      TestKeyValue(key = 2, delay = 700.millis, value = "2.a"),
+      TestKeyValue(key = 1, delay = 500.millis, value = "1.b"),
+      TestKeyValue(key = 2, delay = 900.millis, value = "2.b"),
+      TestKeyValue(key = 1, delay = 500.millis, value = "1.c"))
 
     val result =
       Source(elements)
@@ -222,9 +222,9 @@ class MapAsyncPartitionedSpec
 
   it should "handle nulls" in {
     val elements = List(
-      TestKeyValue(key = 1, delay = 1000 millis, value = "1.a"),
-      TestKeyValue(key = 2, delay = 700 millis, value = "2.a"),
-      TestKeyValue(key = 1, delay = 500 millis, value = null))
+      TestKeyValue(key = 1, delay = 1000.millis, value = "1.a"),
+      TestKeyValue(key = 2, delay = 700.millis, value = "2.a"),
+      TestKeyValue(key = 1, delay = 500.millis, value = null))
 
     @nowarn("msg=never used")
     def fun(v: TestKeyValue, p: Int): Future[String] = Future.successful(v.value)
@@ -254,11 +254,11 @@ class MapAsyncPartitionedSpec
 
   it should "process elements in parallel by partition" in {
     val elements = List(
-      TestKeyValue(key = 1, delay = 1000 millis, value = "1.a"),
-      TestKeyValue(key = 2, delay = 700 millis, value = "2.a"),
-      TestKeyValue(key = 1, delay = 500 millis, value = "1.b"),
-      TestKeyValue(key = 1, delay = 500 millis, value = "1.c"),
-      TestKeyValue(key = 2, delay = 900 millis, value = "2.b"))
+      TestKeyValue(key = 1, delay = 1000.millis, value = "1.a"),
+      TestKeyValue(key = 2, delay = 700.millis, value = "2.a"),
+      TestKeyValue(key = 1, delay = 500.millis, value = "1.b"),
+      TestKeyValue(key = 1, delay = 500.millis, value = "1.c"),
+      TestKeyValue(key = 2, delay = 900.millis, value = "2.b"))
 
     def processElement(e: TestKeyValue, p: Int)(implicit ec: ExecutionContext): Future[(Int, (String, Instant))] =
       Future {
@@ -374,9 +374,9 @@ class MapAsyncPartitionedSpec
 
   it should "handle nulls" in {
     val elements = List(
-      TestKeyValue(key = 1, delay = 1000 millis, value = "1.a"),
-      TestKeyValue(key = 2, delay = 700 millis, value = "2.a"),
-      TestKeyValue(key = 1, delay = 500 millis, value = null))
+      TestKeyValue(key = 1, delay = 1000.millis, value = "1.a"),
+      TestKeyValue(key = 2, delay = 700.millis, value = "2.a"),
+      TestKeyValue(key = 1, delay = 500.millis, value = null))
 
     @nowarn("msg=never used")
     def fun(v: TestKeyValue, p: Int): Future[String] = Future.successful(v.value)
diff --git a/stream/src/main/scala/org/apache/pekko/stream/javadsl/Flow.scala b/stream/src/main/scala/org/apache/pekko/stream/javadsl/Flow.scala
index 1eb248c0c0..d8b6d2f813 100755
--- a/stream/src/main/scala/org/apache/pekko/stream/javadsl/Flow.scala
+++ b/stream/src/main/scala/org/apache/pekko/stream/javadsl/Flow.scala
@@ -93,7 +93,8 @@ object Flow {
       viaFlow: Flow[FOut, FViaOut, FViaMat],
       combine: function.Function2[FMat, FViaMat, Mat]
   ): Flow[FIn, Optional[FViaOut], Mat] =
-    scaladsl.Flow.optionalVia(flow.map(_.toScala).asScala, viaFlow.asScala)(combinerToScala(combine)).map(_.toJava).asJava
+    scaladsl.Flow.optionalVia(flow.map(_.toScala).asScala, viaFlow.asScala)(combinerToScala(combine)).map(
+      _.toJava).asJava
 
   /** Create a `Flow` which can process elements of type `T`. */
   def of[T](@unused clazz: Class[T]): javadsl.Flow[T, T, NotUsed] = create[T]()
diff --git a/stream/src/main/scala/org/apache/pekko/stream/javadsl/Source.scala b/stream/src/main/scala/org/apache/pekko/stream/javadsl/Source.scala
index 7ad5bd0df7..5241f8b7c2 100755
--- a/stream/src/main/scala/org/apache/pekko/stream/javadsl/Source.scala
+++ b/stream/src/main/scala/org/apache/pekko/stream/javadsl/Source.scala
@@ -161,7 +161,8 @@ object Source {
       viaFlow: Flow[SOut, FOut, FMat],
       combine: function.Function2[SMat, FMat, Mat]
   ): Source[Optional[FOut], Mat] =
-    scaladsl.Source.optionalVia(source.map(_.toScala).asScala, viaFlow.asScala)(combinerToScala(combine)).map(_.toJava).asJava
+    scaladsl.Source.optionalVia(source.map(_.toScala).asScala, viaFlow.asScala)(combinerToScala(combine)).map(
+      _.toJava).asJava
 
   /**
    * Helper to create [[Source]] from `Iterable`.
diff --git a/testkit/src/main/scala/org/apache/pekko/testkit/CallingThreadDispatcher.scala b/testkit/src/main/scala/org/apache/pekko/testkit/CallingThreadDispatcher.scala
index 291969ff52..dfa86caad8 100644
--- a/testkit/src/main/scala/org/apache/pekko/testkit/CallingThreadDispatcher.scala
+++ b/testkit/src/main/scala/org/apache/pekko/testkit/CallingThreadDispatcher.scala
@@ -179,7 +179,7 @@ class CallingThreadDispatcher(_configurator: MessageDispatcherConfigurator) exte
       hasMessageHint: Boolean,
       hasSystemMessageHint: Boolean): Boolean = false
 
-  protected[pekko] override def shutdownTimeout = 1 second
+  protected[pekko] override def shutdownTimeout = 1.second
 
   protected[pekko] override def register(actor: ActorCell): Unit = {
     super.register(actor)
diff --git a/testkit/src/main/scala/org/apache/pekko/testkit/TestKit.scala b/testkit/src/main/scala/org/apache/pekko/testkit/TestKit.scala
index 1b43f58501..504470e2fe 100644
--- a/testkit/src/main/scala/org/apache/pekko/testkit/TestKit.scala
+++ b/testkit/src/main/scala/org/apache/pekko/testkit/TestKit.scala
@@ -441,7 +441,7 @@ trait TestKitBase {
   /**
    * Same as calling `within(0 seconds, max)(f)`.
    */
-  def within[T](max: FiniteDuration)(f: => T): T = within(0 seconds, max)(f)
+  def within[T](max: FiniteDuration)(f: => T): T = within(0.seconds, max)(f)
 
   /**
    * Same as `expectMsg(remainingOrDefault, obj)`, but correctly treating the timeFactor.
diff --git a/testkit/src/test/scala/org/apache/pekko/testkit/PekkoSpec.scala b/testkit/src/test/scala/org/apache/pekko/testkit/PekkoSpec.scala
index 807b2f556f..00a4b90c75 100644
--- a/testkit/src/test/scala/org/apache/pekko/testkit/PekkoSpec.scala
+++ b/testkit/src/test/scala/org/apache/pekko/testkit/PekkoSpec.scala
@@ -126,7 +126,7 @@ abstract class PekkoSpec(_system: ActorSystem)
   def spawn(dispatcherId: String = Dispatchers.DefaultDispatcherId)(body: => Unit): Unit =
     Future(body)(system.dispatchers.lookup(dispatcherId))
 
-  override def expectedTestDuration: FiniteDuration = 60 seconds
+  override def expectedTestDuration: FiniteDuration = 60.seconds
 
   def muteDeadLetters(messageClasses: Class[_]*)(sys: ActorSystem = system): Unit =
     if (!sys.log.isDebugEnabled) {
diff --git a/testkit/src/test/scala/org/apache/pekko/testkit/PekkoSpecSpec.scala b/testkit/src/test/scala/org/apache/pekko/testkit/PekkoSpecSpec.scala
index 93442cc279..863592875c 100644
--- a/testkit/src/test/scala/org/apache/pekko/testkit/PekkoSpecSpec.scala
+++ b/testkit/src/test/scala/org/apache/pekko/testkit/PekkoSpecSpec.scala
@@ -59,7 +59,7 @@ class PekkoSpecSpec extends AnyWordSpec with Matchers {
       val spec = new PekkoSpec(localSystem) { refs = Seq(testActor, localSystem.actorOf(Props.empty, "name")) }
       refs.foreach(_.isTerminated should not be true)
       TestKit.shutdownActorSystem(localSystem)
-      spec.awaitCond(refs.forall(_.isTerminated), 2 seconds)
+      spec.awaitCond(refs.forall(_.isTerminated), 2.seconds)
     }
 
     "stop correctly when sending PoisonPill to rootGuardian" in {
@@ -70,7 +70,7 @@ class PekkoSpecSpec extends AnyWordSpec with Matchers {
 
       system.actorSelection("/") ! PoisonPill
 
-      Await.ready(latch, 2 seconds)
+      Await.ready(latch, 2.seconds)
     }
 
     "enqueue unread messages from testActor to deadLetters" in {
@@ -95,14 +95,14 @@ class PekkoSpecSpec extends AnyWordSpec with Matchers {
          * may happen that the system.stop() suspends the testActor before it had
          * a chance to put the message into its private queue
          */
-        probe.receiveWhile(1 second) {
+        probe.receiveWhile(1.second) {
           case null =>
         }
 
         val latch = new TestLatch(1)(system)
         system.registerOnTermination(latch.countDown())
         TestKit.shutdownActorSystem(system)
-        Await.ready(latch, 2 seconds)
+        Await.ready(latch, 2.seconds)
         Await.result(davyJones ? "Die!", timeout.duration) should ===("finally gone")
 
         // this will typically also contain log messages which were sent after the logger shutdown
diff --git a/testkit/src/test/scala/org/apache/pekko/testkit/TestActorRefSpec.scala b/testkit/src/test/scala/org/apache/pekko/testkit/TestActorRefSpec.scala
index 004dc16f46..93ede6bc50 100644
--- a/testkit/src/test/scala/org/apache/pekko/testkit/TestActorRefSpec.scala
+++ b/testkit/src/test/scala/org/apache/pekko/testkit/TestActorRefSpec.scala
@@ -190,7 +190,7 @@ class TestActorRefSpec extends PekkoSpec("disp1.type=Dispatcher") with BeforeAnd
           }
         }))
         a.!(PoisonPill)(testActor)
-        expectMsgPF(5 seconds) {
+        expectMsgPF(5.seconds) {
           case WrappedTerminated(Terminated(`a`)) => true
         }
         a.isTerminated should ===(true)
@@ -210,7 +210,7 @@ class TestActorRefSpec extends PekkoSpec("disp1.type=Dispatcher") with BeforeAnd
             }), self, "child")
 
           override def supervisorStrategy =
-            OneForOneStrategy(maxNrOfRetries = 5, withinTimeRange = 1 second)(List(classOf[ActorKilledException]))
+            OneForOneStrategy(maxNrOfRetries = 5, withinTimeRange = 1.second)(List(classOf[ActorKilledException]))
 
           def receiveT = { case "sendKill" => ref ! Kill }
         }))
diff --git a/testkit/src/test/scala/org/apache/pekko/testkit/TestFSMRefSpec.scala b/testkit/src/test/scala/org/apache/pekko/testkit/TestFSMRefSpec.scala
index ca1aaef7db..e2ccd4d9be 100644
--- a/testkit/src/test/scala/org/apache/pekko/testkit/TestFSMRefSpec.scala
+++ b/testkit/src/test/scala/org/apache/pekko/testkit/TestFSMRefSpec.scala
@@ -45,8 +45,8 @@ class TestFSMRefSpec extends PekkoSpec {
       fsm.setState(stateData = "buh")
       fsm.stateName should ===(1)
       fsm.stateData should ===("buh")
-      fsm.setState(timeout = 100 millis)
-      within(80 millis, 500 millis) {
+      fsm.setState(timeout = 100.millis)
+      within(80.millis, 500.millis) {
         awaitCond(fsm.stateName == 2 && fsm.stateData == "timeout")
       }
     }
@@ -59,7 +59,7 @@ class TestFSMRefSpec extends PekkoSpec {
           }
         }, "test-fsm-ref-2")
       fsm.isTimerActive("test") should ===(false)
-      fsm.startTimerWithFixedDelay("test", 12, 10 millis)
+      fsm.startTimerWithFixedDelay("test", 12, 10.millis)
       fsm.isTimerActive("test") should ===(true)
       fsm.cancelTimer("test")
       fsm.isTimerActive("test") should ===(false)
diff --git a/testkit/src/test/scala/org/apache/pekko/testkit/TestProbeSpec.scala b/testkit/src/test/scala/org/apache/pekko/testkit/TestProbeSpec.scala
index 7872c3483e..3ca118f684 100644
--- a/testkit/src/test/scala/org/apache/pekko/testkit/TestProbeSpec.scala
+++ b/testkit/src/test/scala/org/apache/pekko/testkit/TestProbeSpec.scala
@@ -33,7 +33,7 @@ class TestProbeSpec extends PekkoSpec with DefaultTimeout with Eventually {
     "reply to futures" in {
       val tk = TestProbe()
       val future = tk.ref ? "hello"
-      tk.expectMsg(0 millis, "hello") // TestActor runs on CallingThreadDispatcher
+      tk.expectMsg(0.millis, "hello") // TestActor runs on CallingThreadDispatcher
       tk.lastMessage.sender ! "world"
       future.isCompleted should be(true)
       Await.result(future, timeout.duration) should ===("world")
@@ -43,18 +43,18 @@ class TestProbeSpec extends PekkoSpec with DefaultTimeout with Eventually {
       val tk1 = TestProbe()
       val tk2 = TestProbe()
       tk1.ref.!("hello")(tk2.ref)
-      tk1.expectMsg(0 millis, "hello")
+      tk1.expectMsg(0.millis, "hello")
       tk1.lastMessage.sender ! "world"
-      tk2.expectMsg(0 millis, "world")
+      tk2.expectMsg(0.millis, "world")
     }
 
     "properly send and reply to messages" in {
       val probe1 = TestProbe()
       val probe2 = TestProbe()
       probe1.send(probe2.ref, "hello")
-      probe2.expectMsg(0 millis, "hello")
+      probe2.expectMsg(0.millis, "hello")
       probe2.lastMessage.sender ! "world"
-      probe1.expectMsg(0 millis, "some hint here", "world")
+      probe1.expectMsg(0.millis, "some hint here", "world")
     }
 
     "create a child when invoking actorOf" in {
@@ -110,7 +110,7 @@ class TestProbeSpec extends PekkoSpec with DefaultTimeout with Eventually {
       val hint = "some hint"
 
       assertFailureMessageContains(hint) {
-        probe.expectMsg(0 millis, hint, "hello")
+        probe.expectMsg(0.millis, hint, "hello")
       }
     }
 
@@ -120,7 +120,7 @@ class TestProbeSpec extends PekkoSpec with DefaultTimeout with Eventually {
 
       assertFailureMessageContains(hint) {
         probe.ref ! "hello"
-        probe.expectMsg(0 millis, hint, "bye")
+        probe.expectMsg(0.millis, hint, "bye")
       }
     }
 
@@ -155,9 +155,9 @@ class TestProbeSpec extends PekkoSpec with DefaultTimeout with Eventually {
       expectMsgAnyClassOf(classOf[Int]) should ===(42)
       expectMsgAllClassOf(classOf[Int]) should ===(Seq(42))
       expectMsgAllConformingOf(classOf[Int]) should ===(Seq(42))
-      expectMsgAllConformingOf(5 seconds, classOf[Int]) should ===(Seq(42))
+      expectMsgAllConformingOf(5.seconds, classOf[Int]) should ===(Seq(42))
       expectMsgAllClassOf(classOf[Int]) should ===(Seq(42))
-      expectMsgAllClassOf(5 seconds, classOf[Int]) should ===(Seq(42))
+      expectMsgAllClassOf(5.seconds, classOf[Int]) should ===(Seq(42))
     }
 
     "be able to fish for messages" in {
@@ -172,7 +172,7 @@ class TestProbeSpec extends PekkoSpec with DefaultTimeout with Eventually {
         case _           => false
       }
 
-      probe.expectMsg(1 second, "done")
+      probe.expectMsg(1.second, "done")
     }
 
     "be able to fish for specific messages" in {
@@ -188,7 +188,7 @@ class TestProbeSpec extends PekkoSpec with DefaultTimeout with Eventually {
 
       msg should be("fishForMe")
 
-      probe.expectMsg(1 second, "done")
+      probe.expectMsg(1.second, "done")
     }
 
     "be able to ignore primitive types" in {


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