HBASE-25277 postScannerFilterRow impacts Scan performance a lot in HBase 2.x

[pankaj72981]

1. Added a check for Object class in RegionCoprocessorHost to avoid wrong initialization of hasCustomPostScannerFilterRow
2. Removed dummy implementation of postScannerFilterRow from AccessController, VisibilityController & ConstraintProcessor (which are not required currently)

[Apache-HBase]

💔 -1 overall

Vote	Subsystem	Runtime	Comment
+0 🆗	reexec	0m 0s	Docker mode activated.
-1 ❌	docker	3m 32s	Docker failed to build yetus/hbase:588e902fcb.

Subsystem	Report/Notes
GITHUB PR	#2765
Console output	https://ci-hadoop.apache.org/job/HBase/job/HBase-PreCommit-GitHub-PR/job/PR-2765/1/console
versions	git=2.17.1
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[pankaj72981]

@infraio
Can you please help me to check the build failure, even retry also not working.

[Apache-HBase]

💔 -1 overall

Vote	Subsystem	Runtime	Comment
+0 🆗	reexec	0m 0s	Docker mode activated.
-1 ❌	docker	1m 16s	Docker failed to build yetus/hbase:588e902fcb.

Subsystem	Report/Notes
GITHUB PR	#2765
Console output	https://ci-hadoop.apache.org/job/HBase/job/HBase-PreCommit-GitHub-PR/job/PR-2765/2/console
versions	git=2.17.1
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[Apache-HBase]

🎊 +1 overall

Vote	Subsystem	Runtime	Comment
+0 🆗	reexec	2m 27s	Docker mode activated.
		_ Prechecks _
+1 💚	dupname	0m 0s	No case conflicting files found.
+1 💚	hbaseanti	0m 0s	Patch does not have any anti-patterns.
+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.
		_ branch-2.2 Compile Tests _
+1 💚	mvninstall	3m 18s	branch-2.2 passed
+1 💚	compile	0m 56s	branch-2.2 passed
+1 💚	checkstyle	1m 21s	branch-2.2 passed
+1 💚	shadedjars	4m 3s	branch has no errors when building our shaded downstream artifacts.
+1 💚	javadoc	0m 36s	branch-2.2 passed
+0 🆗	spotbugs	3m 19s	Used deprecated FindBugs config; considering switching to SpotBugs.
+1 💚	findbugs	3m 17s	branch-2.2 passed
		_ Patch Compile Tests _
+1 💚	mvninstall	3m 2s	the patch passed
+1 💚	compile	0m 58s	the patch passed
+1 💚	javac	0m 58s	the patch passed
+1 💚	checkstyle	1m 22s	hbase-server: The patch generated 0 new + 114 unchanged - 2 fixed = 114 total (was 116)
+1 💚	whitespace	0m 0s	The patch has no whitespace issues.
+1 💚	shadedjars	4m 15s	patch has no errors when building our shaded downstream artifacts.
+1 💚	hadoopcheck	26m 5s	Patch does not cause any errors with Hadoop 2.8.5 2.9.2 2.10.0 or 3.1.2 3.2.1.
+1 💚	javadoc	0m 36s	the patch passed
+1 💚	findbugs	3m 28s	the patch passed
		_ Other Tests _
+1 💚	unit	151m 18s	hbase-server in the patch passed.
+1 💚	asflicense	0m 38s	The patch does not generate ASF License warnings.
		213m 55s

Subsystem	Report/Notes
Docker	ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hadoop.apache.org/job/HBase/job/HBase-PreCommit-GitHub-PR/job/PR-2765/3/artifact/out/Dockerfile
GITHUB PR	#2765
Optional Tests	dupname asflicense javac javadoc unit spotbugs findbugs shadedjars hadoopcheck hbaseanti checkstyle compile
uname	Linux 3502f976fc23 4.15.0-58-generic #64-Ubuntu SMP Tue Aug 6 11:12:41 UTC 2019 x86_64 GNU/Linux
Build tool	maven
Personality	/home/jenkins/jenkins-home/workspace/Base-PreCommit-GitHub-PR_PR-2765/out/precommit/personality/provided.sh
git revision	branch-2.2 / 4e75ac5
Default Java	Oracle Corporation-1.8.0_275-b01
Test Results	https://ci-hadoop.apache.org/job/HBase/job/HBase-PreCommit-GitHub-PR/job/PR-2765/3/testReport/
Max. process+thread count	3191 (vs. ulimit of 12500)
modules	C: hbase-server U: hbase-server
Console output	https://ci-hadoop.apache.org/job/HBase/job/HBase-PreCommit-GitHub-PR/job/PR-2765/3/console
versions	git=2.20.1 maven=3.6.3 findbugs=3.1.11
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