Reducing the chance of flaky test failure

[java-codehunger]

Description: This test is flakily fails. I run this test many times and it makes assertion fails.

I was running this test many times and it fails. The failure message is as follows.

Failure: Running org.fluentd.logger.TestFluentLogger 2023-03-31 10:11:42,340 DEBUG [pool-2-thread-1] Started MockFluentd port:33845 Exception in thread "pool-3-thread-15" java.lang.NullPointerException at org.fluentd.logger.FluentLogger.log(FluentLogger.java:101) at org.fluentd.logger.FluentLogger.log(FluentLogger.java:86) at org.fluentd.logger.TestFluentLogger$7.run(TestFluentLogger.java:436) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) at java.base/java.lang.Thread.run(Thread.java:829) java.lang.NullPointerException at org.fluentd.logger.FluentLogger.log(FluentLogger.java:101) at org.fluentd.logger.FluentLogger.log(FluentLogger.java:86) at org.fluentd.logger.TestFluentLogger$7.run(TestFluentLogger.java:436) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) at java.base/java.lang.Thread.run(Thread.java:829) Exception in thread "pool-3-thread-7" java.lang.NullPointerException at org.fluentd.logger.FluentLogger.log(FluentLogger.java:101) at org.fluentd.logger.FluentLogger.log(FluentLogger.java:86) at org.fluentd.logger.TestFluentLogger$7.run(TestFluentLogger.java:436) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) at java.base/java.lang.Thread.run(Thread.java:829) Exception in thread "pool-3-thread-10" java.lang.NullPointerException at org.fluentd.logger.FluentLogger.log(FluentLogger.java:101) at org.fluentd.logger.FluentLogger.log(FluentLogger.java:86) at org.fluentd.logger.TestFluentLogger$7.run(TestFluentLogger.java:436) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) at java.base/java.lang.Thread.run(Thread.java:829) 2023-03-31 10:16:50,774 ERROR [main] Timed out 2023-03-31 10:16:50,774 DEBUG [pool-2-thread-1] Terminated MockFluentd port:33845 Tests run: 1, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 308.585 sec <<< FAILURE!

Results :

Failed tests: testInMultiThreading(org.fluentd.logger.TestFluentLogger): expected:<210000> but was:<209591>

Tests run: 1, Failures: 1, Errors: 0, Skipped: 0