HADOOP-18312. Yarn WebApps to support IPv6 address.

[prasad-acit]

org.apache.hadoop.yarn.webapp.WebApps.Builder#at(java.lang.String)

This fails to parse an IPV6 address. Only IPv4 supported by the builder.

[hadoop-yetus]

💔 -1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	24m 5s		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 appears to include 1 new or modified test files.
			_ HADOOP-17800 Compile Tests _
+0 🆗	mvndep	14m 50s		Maven dependency ordering for branch
-1 ❌	mvninstall	24m 42s	/branch-mvninstall-root.txt	root in HADOOP-17800 failed.
-1 ❌	compile	19m 8s	/branch-compile-root-jdkPrivateBuild-11.0.15+10-Ubuntu-0ubuntu0.20.04.1.txt	root in HADOOP-17800 failed with JDK Private Build-11.0.15+10-Ubuntu-0ubuntu0.20.04.1.
-1 ❌	compile	14m 38s	/branch-compile-root-jdkPrivateBuild-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07.txt	root in HADOOP-17800 failed with JDK Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07.
+1 💚	checkstyle	5m 37s		HADOOP-17800 passed
+1 💚	mvnsite	2m 55s		HADOOP-17800 passed
+1 💚	javadoc	2m 18s		HADOOP-17800 passed with JDK Private Build-11.0.15+10-Ubuntu-0ubuntu0.20.04.1
+1 💚	javadoc	2m 39s		HADOOP-17800 passed with JDK Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07
+1 💚	spotbugs	5m 11s		HADOOP-17800 passed
+1 💚	shadedclient	18m 26s		branch has no errors when building and testing our client artifacts.
			_ Patch Compile Tests _
+0 🆗	mvndep	0m 30s		Maven dependency ordering for patch
+1 💚	mvninstall	1m 47s		the patch passed
-1 ❌	compile	15m 31s	/patch-compile-root-jdkPrivateBuild-11.0.15+10-Ubuntu-0ubuntu0.20.04.1.txt	root in the patch failed with JDK Private Build-11.0.15+10-Ubuntu-0ubuntu0.20.04.1.
-1 ❌	javac	15m 31s	/patch-compile-root-jdkPrivateBuild-11.0.15+10-Ubuntu-0ubuntu0.20.04.1.txt	root in the patch failed with JDK Private Build-11.0.15+10-Ubuntu-0ubuntu0.20.04.1.
-1 ❌	compile	16m 9s	/patch-compile-root-jdkPrivateBuild-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07.txt	root in the patch failed with JDK Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07.
-1 ❌	javac	16m 9s	/patch-compile-root-jdkPrivateBuild-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07.txt	root in the patch failed with JDK Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07.
+1 💚	blanks	0m 0s		The patch has no blanks issues.
-0 ⚠️	checkstyle	4m 24s	/results-checkstyle-root.txt	root: The patch generated 1 new + 73 unchanged - 0 fixed = 74 total (was 73)
+1 💚	mvnsite	2m 30s		the patch passed
+1 💚	javadoc	2m 8s		the patch passed with JDK Private Build-11.0.15+10-Ubuntu-0ubuntu0.20.04.1
+1 💚	javadoc	2m 38s		the patch passed with JDK Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07
+1 💚	spotbugs	5m 22s		the patch passed
+1 💚	shadedclient	20m 10s		patch has no errors when building and testing our client artifacts.
			_ Other Tests _
+1 💚	unit	18m 3s		hadoop-common in the patch passed.
+1 💚	unit	4m 45s		hadoop-yarn-common in the patch passed.
+1 💚	asflicense	0m 46s		The patch does not generate ASF License warnings.
		230m 34s

Subsystem	Report/Notes
Docker	ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4504/1/artifact/out/Dockerfile
GITHUB PR	#4504
Optional Tests	dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell
uname	Linux ece936f6eebb 4.15.0-175-generic #184-Ubuntu SMP Thu Mar 24 17:48:36 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/bin/hadoop.sh
git revision	HADOOP-17800 / 83edf9f
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-4504/1/testReport/
Max. process+thread count	2814 (vs. ulimit of 5500)
modules	C: hadoop-common-project/hadoop-common hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common U: .
Console output	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4504/1/console
versions	git=2.25.1 maven=3.6.3 spotbugs=4.2.2
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