HDFS-15208. Supress bogus AbstractWadlGeneratorGrammarGenerator in KMS stderr in hdfs

[jojochuang]

Verified manually by running TestEncryptionZonesWithKMS.

Change-Id: I7abeaf4b65e2a4758356aa69ab8930f7e993077d

[hadoop-yetus]

🎊 +1 overall

Vote	Subsystem	Runtime	Comment
+0 🆗	reexec	1m 8s	Docker mode activated.
		_ Prechecks _
+1 💚	dupname	0m 0s	No case conflicting files found.
+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	22m 0s	trunk passed
+1 💚	shadedclient	37m 40s	branch has no errors when building and testing our client artifacts.
		_ Patch Compile Tests _
+1 💚	mvninstall	1m 26s	the patch passed
+1 💚	whitespace	0m 0s	The patch has no whitespace issues.
+1 💚	shadedclient	15m 56s	patch has no errors when building and testing our client artifacts.
		_ Other Tests _
+1 💚	unit	1m 15s	hadoop-hdfs in the patch passed.
+1 💚	asflicense	0m 32s	The patch does not generate ASF License warnings.
		60m 34s

Subsystem	Report/Notes
Docker	Client=19.03.7 Server=19.03.7 base: https://builds.apache.org/job/hadoop-multibranch/job/PR-1879/1/artifact/out/Dockerfile
GITHUB PR	#1879
Optional Tests	dupname asflicense unit
uname	Linux 497b678f9ebf 4.15.0-74-generic #84-Ubuntu SMP Thu Dec 19 08:06:28 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	personality/hadoop.sh
git revision	trunk / 004e955
Test Results	https://builds.apache.org/job/hadoop-multibranch/job/PR-1879/1/testReport/
Max. process+thread count	307 (vs. ulimit of 5500)
modules	C: hadoop-hdfs-project/hadoop-hdfs U: hadoop-hdfs-project/hadoop-hdfs
Console output	https://builds.apache.org/job/hadoop-multibranch/job/PR-1879/1/console
versions	git=2.7.4 maven=3.3.9
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[steveloughran]

+1

[jojochuang]

Thanks. I'll cherrypick this to lower branches.