YARN-11829. Added retry to release file handler

[ASHISH-RANJAN59]

Description of PR

UTs in yarn-resourcemanager is failing with below error: 

Caused by: org.apache.commons.io.IOIndexedException: IOException #0: Cannot delete file: C:\hadoop\hadoop-yarn-project\hadoop-yarn\hadoop-yarn-server\hadoop-yarn-server-resourcemanager\target\test-dir\conversion-output\capacity-scheduler.xml
    at org.apache.commons.io.function.IOStream.lambda$forAll$11(IOStream.java:354)
    at java.util.Spliterators$ArraySpliterator.forEachRemaining(Spliterators.java:948)
    at java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:647)
    at org.apache.commons.io.function.IOStream.forAll(IOStream.java:345)
    ... 79 more
Caused by: java.io.IOException: Cannot delete file: C:\hadoop\hadoop-yarn-project\hadoop-yarn\hadoop-yarn-server\hadoop-yarn-server-resourcemanager\target\test-dir\conversion-output\capacity-scheduler.xml
    at org.apache.commons.io.FileUtils.forceDelete(FileUtils.java:1390)
    at org.apache.commons.io.function.IOStream.lambda$forAll$11(IOStream.java:347)
    ... 82 more
Caused by: java.nio.file.FileSystemException: C:\hadoop\hadoop-yarn-project\hadoop-yarn\hadoop-yarn-server\hadoop-yarn-server-resourcemanager\target\test-dir\conversion-output\capacity-scheduler.xml: The process cannot access the file because it is being used by another process.

The above error shows up when all the UTs for class TestFSConfigToCSConfigConverter runs together as we are using same folder structure which is being created/deleted after every test case.
The issue happens when the file handlers are not closed properly resulting in unsuccessful deletion of test directory.

How was this patch tested?

The patch was tested by running UTs in local.

For code changes:

• Does the title or this PR starts with the corresponding JIRA issue id (e.g. 'HADOOP-17799. Your PR title ...')?
• Object storage: have the integration tests been executed and the endpoint declared according to the connector-specific documentation?
• If adding new dependencies to the code, are these dependencies licensed in a way that is compatible for inclusion under ASF 2.0?
• If applicable, have you updated the LICENSE, LICENSE-binary, NOTICE-binary files?

[ASHISH-RANJAN59]

[hadoop-yetus]

💔 -1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	0m 33s		Docker mode activated.
			_ Prechecks _
+1 💚	dupname	0m 0s		No case conflicting files found.
+0 🆗	codespell	0m 1s		codespell was not available.
+0 🆗	detsecrets	0m 1s		detect-secrets was not available.
+1 💚	@author	0m 0s		The patch does not contain any @author tags.
+1 💚	test4tests	0m 0s		The patch appears to include 1 new or modified test files.
			_ trunk Compile Tests _
+1 💚	mvninstall	37m 1s		trunk passed
+1 💚	compile	1m 2s		trunk passed with JDK Ubuntu-11.0.27+6-post-Ubuntu-0ubuntu120.04
+1 💚	compile	0m 56s		trunk passed with JDK Private Build-1.8.0_452-8u452-gaus1-0ubuntu120.04-b09
+1 💚	checkstyle	0m 54s		trunk passed
+1 💚	mvnsite	0m 59s		trunk passed
+1 💚	javadoc	0m 59s		trunk passed with JDK Ubuntu-11.0.27+6-post-Ubuntu-0ubuntu120.04
+1 💚	javadoc	0m 49s		trunk passed with JDK Private Build-1.8.0_452-8u452-gaus1-0ubuntu120.04-b09
+1 💚	spotbugs	1m 57s		trunk passed
+1 💚	shadedclient	36m 28s		branch has no errors when building and testing our client artifacts.
			_ Patch Compile Tests _
+1 💚	mvninstall	0m 47s		the patch passed
+1 💚	compile	0m 55s		the patch passed with JDK Ubuntu-11.0.27+6-post-Ubuntu-0ubuntu120.04
+1 💚	javac	0m 55s		the patch passed
+1 💚	compile	0m 48s		the patch passed with JDK Private Build-1.8.0_452-8u452-gaus1-0ubuntu120.04-b09
+1 💚	javac	0m 48s		the patch passed
+1 💚	blanks	0m 0s		The patch has no blanks issues.
-0 ⚠️	checkstyle	0m 41s	/results-checkstyle-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager.txt	hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager: The patch generated 1 new + 0 unchanged - 0 fixed = 1 total (was 0)
+1 💚	mvnsite	0m 50s		the patch passed
+1 💚	javadoc	0m 43s		the patch passed with JDK Ubuntu-11.0.27+6-post-Ubuntu-0ubuntu120.04
+1 💚	javadoc	0m 40s		the patch passed with JDK Private Build-1.8.0_452-8u452-gaus1-0ubuntu120.04-b09
+1 💚	spotbugs	1m 56s		the patch passed
+1 💚	shadedclient	36m 15s		patch has no errors when building and testing our client artifacts.
			_ Other Tests _
-1 ❌	unit	156m 37s	/patch-unit-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-resourcemanager.txt	hadoop-yarn-server-resourcemanager in the patch passed.
+1 💚	asflicense	0m 38s		The patch does not generate ASF License warnings.
		282m 15s

Reason	Tests
Failed junit tests	hadoop.yarn.server.resourcemanager.TestRMEmbeddedElector
	hadoop.yarn.server.resourcemanager.TestRMHAForAsyncScheduler
	hadoop.yarn.server.resourcemanager.TestKillApplicationWithRMHA

Subsystem	Report/Notes
Docker	ClientAPI=1.50 ServerAPI=1.50 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7755/1/artifact/out/Dockerfile
GITHUB PR	#7755
Optional Tests	dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets
uname	Linux 242ba208f769 5.15.0-136-generic #147-Ubuntu SMP Sat Mar 15 15:53:30 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/bin/hadoop.sh
git revision	trunk / 14ae8b8
Default Java	Private Build-1.8.0_452-8u452-gaus1-0ubuntu120.04-b09
Multi-JDK versions	/usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.27+6-post-Ubuntu-0ubuntu120.04 /usr/lib/jvm/java-8-openjdk-amd64:Private Build-1.8.0_452-8u452-gaus1-0ubuntu120.04-b09
Test Results	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7755/1/testReport/
Max. process+thread count	1002 (vs. ulimit of 5500)
modules	C: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager U: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager
Console output	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7755/1/console
versions	git=2.25.1 maven=3.6.3 spotbugs=4.2.2
Powered by	Apache Yetus 0.14.0 https://yetus.apache.org

This message was automatically generated.

[GauthamBanasandra]

Let's handle the folder deletion reliably.

[GauthamBanasandra]

This still may not guarantee the folder deletion. A better way to solve this would be to configure this class to never run the unit tests in parallel. You can use the @Execution(ExecutionMode.SAME_THREAD) annotation on the class in JUnit 5.

Could you please use an equivalent approach for the version of JUnit used here?