[GitHub] [flink] 1996fanrui commented on a diff in pull request #19864: [FLINK-27162][runtime] Trigger non-periodic checkpoint in 'timer' thread

[GitBox <gi...@apache.org>]

1996fanrui commented on code in PR #19864:
URL: https://github.com/apache/flink/pull/19864#discussion_r894984520


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flink-runtime/src/main/java/org/apache/flink/runtime/checkpoint/CheckpointCoordinator.java:
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@@ -74,11 +74,14 @@
 import java.util.Set;
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.CompletionException;
+import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.Executor;
 import java.util.concurrent.RejectedExecutionException;
 import java.util.concurrent.ScheduledFuture;
 import java.util.concurrent.ThreadLocalRandom;
 import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.concurrent.locks.LockSupport;

Review Comment:
   Hi @akalash , thanks for your contribution. Could you run 'mvn spotless:apply' to remove these useless code?



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