YARN-11130. removed unused import

[slfan1989]

RouterClientRMService Has Unused import, keep the code clean and remove unused.
JIRA:YARN-11130

[hadoop-yetus]

💔 -1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	0m 45s		Docker mode activated.
			_ Prechecks _
+1 💚	dupname	0m 0s		No case conflicting files found.
+0 🆗	codespell	0m 0s		codespell was not available.
+1 💚	@author	0m 0s		The patch does not contain any @author tags.
-1 ❌	test4tests	0m 0s		The patch doesn't appear to include any new or modified tests. Please justify why no new tests are needed for this patch. Also please list what manual steps were performed to verify this patch.
			_ trunk Compile Tests _
+1 💚	mvninstall	39m 52s		trunk passed
+1 💚	compile	0m 31s		trunk passed with JDK Private Build-11.0.15+10-Ubuntu-0ubuntu0.20.04.1
+1 💚	compile	0m 27s		trunk passed with JDK Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07
+1 💚	checkstyle	0m 28s		trunk passed
+1 💚	mvnsite	0m 31s		trunk passed
+1 💚	javadoc	0m 38s		trunk passed with JDK Private Build-11.0.15+10-Ubuntu-0ubuntu0.20.04.1
+1 💚	javadoc	0m 23s		trunk passed with JDK Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07
+1 💚	spotbugs	1m 1s		trunk passed
+1 💚	shadedclient	19m 35s		branch has no errors when building and testing our client artifacts.
			_ Patch Compile Tests _
+1 💚	mvninstall	0m 25s		the patch passed
+1 💚	compile	0m 24s		the patch passed with JDK Private Build-11.0.15+10-Ubuntu-0ubuntu0.20.04.1
+1 💚	javac	0m 24s		the patch passed
+1 💚	compile	0m 22s		the patch passed with JDK Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07
+1 💚	javac	0m 22s		the patch passed
+1 💚	blanks	0m 0s		The patch has no blanks issues.
+1 💚	checkstyle	0m 16s		hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-router: The patch generated 0 new + 0 unchanged - 1 fixed = 0 total (was 1)
+1 💚	mvnsite	0m 23s		the patch passed
+1 💚	javadoc	0m 21s		the patch passed with JDK Private Build-11.0.15+10-Ubuntu-0ubuntu0.20.04.1
+1 💚	javadoc	0m 20s		the patch passed with JDK Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07
+1 💚	spotbugs	0m 52s		the patch passed
+1 💚	shadedclient	21m 0s		patch has no errors when building and testing our client artifacts.
			_ Other Tests _
-1 ❌	unit	1m 56s	/patch-unit-hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-router.txt	hadoop-yarn-server-router in the patch passed.
+1 💚	asflicense	0m 37s		The patch does not generate ASF License warnings.
		92m 38s

Reason	Tests
Failed junit tests	hadoop.yarn.server.router.webapp.TestRouterWebServicesREST

Subsystem	Report/Notes
Docker	ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4276/1/artifact/out/Dockerfile
GITHUB PR	#4276
JIRA Issue	YARN-11130
Optional Tests	dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell
uname	Linux d516f62cb41a 4.15.0-169-generic #177-Ubuntu SMP Thu Feb 3 10:50:38 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/bin/hadoop.sh
git revision	trunk / 27c684b
Default Java	Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07
Multi-JDK versions	/usr/lib/jvm/java-11-openjdk-amd64:Private Build-11.0.15+10-Ubuntu-0ubuntu0.20.04.1 /usr/lib/jvm/java-8-openjdk-amd64:Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07
Test Results	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4276/1/testReport/
Max. process+thread count	746 (vs. ulimit of 5500)
modules	C: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-router U: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-router
Console output	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4276/1/console
versions	git=2.25.1 maven=3.6.3 spotbugs=4.2.2
Powered by	Apache Yetus 0.14.0-SNAPSHOT https://yetus.apache.org

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[ayushtkn]

LGTM

[tomscut]

LGTM.

[slfan1989]

@ayushtkn @tomscut Thanks for your help review the code, Can you help me merge to trunk?

[hadoop-yetus]

🎊 +1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	0m 42s		Docker mode activated.
			_ Prechecks _
+1 💚	dupname	0m 0s		No case conflicting files found.
+0 🆗	codespell	0m 1s		codespell 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 _
+0 🆗	mvndep	16m 5s		Maven dependency ordering for branch
+1 💚	mvninstall	25m 44s		trunk passed
+1 💚	compile	3m 46s		trunk passed with JDK Private Build-11.0.15+10-Ubuntu-0ubuntu0.20.04.1
+1 💚	compile	3m 13s		trunk passed with JDK Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07
+1 💚	checkstyle	1m 13s		trunk passed
+1 💚	mvnsite	1m 4s		trunk passed
+1 💚	javadoc	1m 24s		trunk passed with JDK Private Build-11.0.15+10-Ubuntu-0ubuntu0.20.04.1
+1 💚	javadoc	0m 53s		trunk passed with JDK Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07
+0 🆗	spotbugs	0m 44s		branch/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-tests no spotbugs output file (spotbugsXml.xml)
+1 💚	shadedclient	19m 27s		branch has no errors when building and testing our client artifacts.
			_ Patch Compile Tests _
+0 🆗	mvndep	0m 56s		Maven dependency ordering for patch
+1 💚	mvninstall	0m 47s		the patch passed
+1 💚	compile	3m 38s		the patch passed with JDK Private Build-11.0.15+10-Ubuntu-0ubuntu0.20.04.1
+1 💚	javac	3m 38s		the patch passed
+1 💚	compile	3m 8s		the patch passed with JDK Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07
+1 💚	javac	3m 8s		the patch passed
+1 💚	blanks	0m 0s		The patch has no blanks issues.
+1 💚	checkstyle	1m 1s		hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server: The patch generated 0 new + 2 unchanged - 2 fixed = 2 total (was 4)
+1 💚	mvnsite	0m 50s		the patch passed
+1 💚	javadoc	0m 41s		the patch passed with JDK Private Build-11.0.15+10-Ubuntu-0ubuntu0.20.04.1
+1 💚	javadoc	0m 40s		the patch passed with JDK Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07
+0 🆗	spotbugs	0m 23s		hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-tests has no data from spotbugs
+1 💚	shadedclient	19m 32s		patch has no errors when building and testing our client artifacts.
			_ Other Tests _
+1 💚	unit	3m 15s		hadoop-yarn-server-tests in the patch passed.
+1 💚	unit	2m 34s		hadoop-yarn-server-router in the patch passed.
+1 💚	asflicense	0m 39s		The patch does not generate ASF License warnings.
		115m 59s

Subsystem	Report/Notes
Docker	ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4276/2/artifact/out/Dockerfile
GITHUB PR	#4276
Optional Tests	dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell
uname	Linux 948a7f605fb6 4.15.0-169-generic #177-Ubuntu SMP Thu Feb 3 10:50:38 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/bin/hadoop.sh
git revision	trunk / 1b60299
Default Java	Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07
Multi-JDK versions	/usr/lib/jvm/java-11-openjdk-amd64:Private Build-11.0.15+10-Ubuntu-0ubuntu0.20.04.1 /usr/lib/jvm/java-8-openjdk-amd64:Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07
Test Results	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4276/2/testReport/
Max. process+thread count	726 (vs. ulimit of 5500)
modules	C: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-tests hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-router U: hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server
Console output	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4276/2/console
versions	git=2.25.1 maven=3.6.3 spotbugs=4.2.2
Powered by	Apache Yetus 0.14.0-SNAPSHOT https://yetus.apache.org

This message was automatically generated.

[slfan1989]

Hi ，@ayushtkn @tomscut @szilard-nemeth, the Junit Test problem has been fixed, please help to review the code, thank you

[ayushtkn]

Merged. Thanx Everyone!!!