[BEAM-7165] FileIOTest.testMatchWatchForNewFiles flakey in java presubmit

[Alex Amato <aj...@google.com>]

https://issues.apache.org/jira/browse/BEAM-7165

https://builds.apache.org/job/beam_PreCommit_Java_Commit/5634/testReport/junit/org.apache.beam.sdk.io/FileIOTest/testMatchWatchForNewFiles/

Note: This test was flakey and fixed in BEAM-6491
<https://issues.apache.org/jira/browse/BEAM-6491>, filed this new ticket
since I am not sure if its the same issue.
Stacktrace

java.lang.AssertionError:
FileIO.MatchAll/Reshuffle.ViaRandomKey/Values/Values/Map/ParMultiDo(Anonymous).output:
Expected: iterable with items
[<Metadata\{resourceId=/tmp/junit7697965342227553672/watch/first,
sizeBytes=42, isReadSeekEfficient=true, lastModifiedMillis=0}>,
<Metadata\{resourceId=/tmp/junit7697965342227553672/watch/second,
sizeBytes=37, isReadSeekEfficient=true, lastModifiedMillis=0}>,
<Metadata\{resourceId=/tmp/junit7697965342227553672/watch/third,
sizeBytes=99, isReadSeekEfficient=true, lastModifiedMillis=0}>] in any
order but: not matched:
<Metadata{resourceId=/tmp/junit7697965342227553672/watch/first,
sizeBytes=0, isReadSeekEfficient=true, lastModifiedMillis=0}> at
org.apache.beam.sdk.testing.PAssert$PAssertionSite.capture(PAssert.java:169)
at org.apache.beam.sdk.testing.PAssert.that(PAssert.java:393) at
org.apache.beam.sdk.testing.PAssert.that(PAssert.java:385) at
org.apache.beam.sdk.io.FileIOTest.testMatchWatchForNewFiles(FileIOTest.java:262)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498) at
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)
at
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
at
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at
org.apache.beam.sdk.testing.TestPipeline$1.evaluate(TestPipeline.java:319)
at
org.junit.rules.ExpectedException$ExpectedExceptionStatement.evaluate(ExpectedException.java:265)
at org.junit.rules.ExternalResource$1.evaluate(ExternalResource.java:54) at
org.junit.runners.BlockJUnit4ClassRunner$1.evaluate(BlockJUnit4ClassRunner.java:100)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:349) at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:103)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:63)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:314) at
org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79) at
org.junit.runners.ParentRunner.runChildren(ParentRunner.java:312) at
org.junit.runners.ParentRunner.access$100(ParentRunner.java:66) at
org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:292) at
org.junit.runners.ParentRunner.run(ParentRunner.java:396) at
org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecutor.runTestClass(JUnitTestClassExecutor.java:110)
at
org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecutor.execute(JUnitTestClassExecutor.java:58)
at
org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecutor.execute(JUnitTestClassExecutor.java:38)
at
org.gradle.api.internal.tasks.testing.junit.AbstractJUnitTestClassProcessor.processTestClass(AbstractJUnitTestClassProcessor.java:62)
at
org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.processTestClass(SuiteTestClassProcessor.java:51)
at sun.reflect.GeneratedMethodAccessor28.invoke(Unknown Source) at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498) at
org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
at
org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
at
org.gradle.internal.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:32)
at
org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)
at com.sun.proxy.$Proxy2.processTestClass(Unknown Source) at
org.gradle.api.internal.tasks.testing.worker.TestWorker.processTestClass(TestWorker.java:118)
at sun.reflect.GeneratedMethodAccessor27.invoke(Unknown Source) at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498) at
org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
at
org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
at
org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:175)
at
org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:157)
at
org.gradle.internal.remote.internal.hub.MessageHub$Handler.run(MessageHub.java:404)
at
org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
at
org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:46)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at
org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)
Caused by: java.lang.AssertionError: Expected: iterable with items
[<Metadata\{resourceId=/tmp/junit7697965342227553672/watch/first,
sizeBytes=42, isReadSeekEfficient=true, lastModifiedMillis=0}>,
<Metadata\{resourceId=/tmp/junit7697965342227553672/watch/second,
sizeBytes=37, isReadSeekEfficient=true, lastModifiedMillis=0}>,
<Metadata\{resourceId=/tmp/junit7697965342227553672/watch/third,
sizeBytes=99, isReadSeekEfficient=true, lastModifiedMillis=0}>] in any
order but: not matched:
<Metadata{resourceId=/tmp/junit7697965342227553672/watch/first,
sizeBytes=0, isReadSeekEfficient=true, lastModifiedMillis=0}> at
org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:18) at
org.junit.Assert.assertThat(Assert.java:966) at
org.junit.Assert.assertThat(Assert.java:931) at
org.apache.beam.sdk.testing.PAssert$AssertContainsInAnyOrder.apply(PAssert.java:1459)
at
org.apache.beam.sdk.testing.PAssert$AssertContainsInAnyOrder.apply(PAssert.java:1438)
at
org.apache.beam.sdk.testing.PAssert$CheckRelationAgainstExpected.apply(PAssert.java:1108)
at
org.apache.beam.sdk.testing.PAssert$CheckRelationAgainstExpected.apply(PAssert.java:1088)
at org.apache.beam.sdk.testing.PAssert.doChecks(PAssert.java:1387) at
org.apache.beam.sdk.testing.PAssert$GroupedValuesCheckerDoFn.processElement(PAssert.java:1354)
at
org.apache.beam.sdk.testing.PAssert$GroupedValuesCheckerDoFn$DoFnInvoker.invokeProcessElement(Unknown
Source) at
org.apache.beam.repackaged.beam_runners_direct_java.runners.core.SimpleDoFnRunner.invokeProcessElement(SimpleDoFnRunner.java:213)
at
org.apache.beam.repackaged.beam_runners_direct_java.runners.core.SimpleDoFnRunner.processElement(SimpleDoFnRunner.java:178)
at
org.apache.beam.repackaged.beam_runners_direct_java.runners.core.SimplePushbackSideInputDoFnRunner.processElementInReadyWindows(SimplePushbackSideInputDoFnRunner.java:78)
at
org.apache.beam.runners.direct.ParDoEvaluator.processElement(ParDoEvaluator.java:211)
at
org.apache.beam.runners.direct.DoFnLifecycleManagerRemovingTransformEvaluator.processElement(DoFnLifecycleManagerRemovingTransformEvaluator.java:54)
at
org.apache.beam.runners.direct.DirectTransformExecutor.processElements(DirectTransformExecutor.java:160)
at
org.apache.beam.runners.direct.DirectTransformExecutor.run(DirectTransformExecutor.java:124)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266) at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)