HDDS-2023. Fix rat check failures in trunk

[vivekratnavel]

No description provided.

[vivekratnavel]

/label ozone

[vivekratnavel]

@elek @anuengineer Please review

[adoroszlai]

Thanks @vivekratnavel for the fix. Verified with rat.sh (after fixes in #1343).

[elek]

+1 thanks the fix very much.

I am enabling the rat checks in the argo based ozone builds:

https://github.com/elek/argo-ozone

[hadoop-yetus]

💔 -1 overall

Vote	Subsystem	Runtime	Comment
0	reexec	40	Docker mode activated.
		_ Prechecks _
+1	dupname	1	No case conflicting files found.
+1	@author	0	The patch does not contain any @author tags.
+1	test4tests	0	The patch appears to include 5 new or modified test files.
		_ trunk Compile Tests _
0	mvndep	73	Maven dependency ordering for branch
+1	mvninstall	610	trunk passed
+1	compile	344	trunk passed
+1	checkstyle	64	trunk passed
+1	mvnsite	0	trunk passed
+1	shadedclient	790	branch has no errors when building and testing our client artifacts.
+1	javadoc	156	trunk passed
0	spotbugs	408	Used deprecated FindBugs config; considering switching to SpotBugs.
+1	findbugs	602	trunk passed
		_ Patch Compile Tests _
0	mvndep	29	Maven dependency ordering for patch
+1	mvninstall	546	the patch passed
+1	compile	364	the patch passed
+1	javac	364	the patch passed
+1	checkstyle	70	the patch passed
+1	mvnsite	0	the patch passed
+1	whitespace	0	The patch has no whitespace issues.
+1	shadedclient	667	patch has no errors when building and testing our client artifacts.
+1	javadoc	152	the patch passed
+1	findbugs	616	the patch passed
		_ Other Tests _
+1	unit	282	hadoop-hdds in the patch passed.
-1	unit	1729	hadoop-ozone in the patch failed.
+1	asflicense	45	The patch does not generate ASF License warnings.
		7328

Reason	Tests
Failed junit tests	hadoop.ozone.client.rpc.TestOzoneAtRestEncryption
	hadoop.ozone.container.server.TestSecureContainerServer
	hadoop.ozone.om.TestOzoneManagerHA

Subsystem	Report/Notes
Docker	Client=19.03.1 Server=19.03.1 base: https://builds.apache.org/job/hadoop-multibranch/job/PR-1342/1/artifact/out/Dockerfile
GITHUB PR	#1342
Optional Tests	dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient findbugs checkstyle
uname	Linux fbadb4fcee90 4.4.0-138-generic #164-Ubuntu SMP Tue Oct 2 17:16:02 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	personality/hadoop.sh
git revision	trunk / bd7baea
Default Java	1.8.0_222
unit	https://builds.apache.org/job/hadoop-multibranch/job/PR-1342/1/artifact/out/patch-unit-hadoop-ozone.txt
Test Results	https://builds.apache.org/job/hadoop-multibranch/job/PR-1342/1/testReport/
Max. process+thread count	5213 (vs. ulimit of 5500)
modules	C: hadoop-hdds/common hadoop-ozone/common hadoop-ozone/dist hadoop-ozone/integration-test hadoop-ozone/ozone-manager U: .
Console output	https://builds.apache.org/job/hadoop-multibranch/job/PR-1342/1/console
versions	git=2.7.4 maven=3.3.9 findbugs=3.1.0-RC1
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