TEZ-4712: Class-level SpotBugs exclusions for generated Protobuf classes

[Aggarwal-Raghav]

1. Consolidate specific SpotBugs exclusions into class-level regex matches in findbugs-exclude.xml files.
2. Generated code should not be manually modified to fix SpotBugs warnings.
3. This change removes redundant rules targeting individual fields (e.g., PARSER, unknownFields) and methods (e.g., maybeForceBuilderInitialization).

[Aggarwal-Raghav]

Once this is merge, will add the rule as part of TEZ-4708 to

<Match>
    <Class name="~org\.apache\.tez\.runtime\.internals\.protocolPB\.TezTaskUmbilicalProtocolProtos.*" />
</Match>

which is causing lot of spotbugs verbose alarms.

[tez-yetus]

🎊 +1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	13m 36s		Docker mode activated.
			_ Prechecks _
+1 💚	dupname	0m 0s		No case conflicting files found.
+0 🆗	detsecrets	0m 0s		detect-secrets was not available.
+0 🆗	xmllint	0m 0s		xmllint was not available.
+1 💚	@author	0m 0s		The patch does not contain any @author tags.
			_ master Compile Tests _
+0 🆗	mvndep	0m 34s		Maven dependency ordering for branch
			_ Patch Compile Tests _
+0 🆗	mvndep	0m 10s		Maven dependency ordering for patch
+1 💚	codespell	0m 8s		No new issues.
+1 💚	blanks	0m 0s		The patch has no blanks issues.
			_ Other Tests _
+1 💚	asflicense	0m 50s		The patch does not generate ASF License warnings.
		16m 9s

Subsystem	Report/Notes
Docker	ClientAPI=1.54 ServerAPI=1.54 base: https://ci-hadoop.apache.org/job/tez-multibranch/job/PR-489/1/artifact/out/Dockerfile
GITHUB PR	#489
Optional Tests	dupname asflicense codespell detsecrets xmllint
uname	Linux 43927600ef72 5.15.0-174-generic #184-Ubuntu SMP Fri Mar 13 18:41:50 UTC 2026 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	/home/jenkins/jenkins-agent/workspace/tez-multibranch_PR-489/src/.yetus/personality.sh
git revision	master / 39f2e4c
Max. process+thread count	52 (vs. ulimit of 5500)
modules	C: tez-api tez-runtime-internals tez-runtime-library tez-mapreduce tez-dag U: .
Console output	https://ci-hadoop.apache.org/job/tez-multibranch/job/PR-489/1/console
versions	git=2.43.0 maven=3.9.14 codespell=2.4.1
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[tez-yetus]

💔 -1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	0m 0s		Docker mode activated.
-1 ❌	docker	9m 40s		Docker failed to build run-specific yetus/tez:tp-20126}.

Subsystem	Report/Notes
GITHUB PR	#489
Console output	https://ci-hadoop.apache.org/job/tez-multibranch/job/PR-489/2/console
versions	git=2.34.1
Powered by	Apache Yetus 0.15.1 https://yetus.apache.org

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[tez-yetus]

🎊 +1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	6m 29s		Docker mode activated.
			_ Prechecks _
+1 💚	dupname	0m 0s		No case conflicting files found.
+0 🆗	detsecrets	0m 0s		detect-secrets was not available.
+0 🆗	xmllint	0m 0s		xmllint was not available.
+1 💚	@author	0m 0s		The patch does not contain any @author tags.
			_ master Compile Tests _
+0 🆗	mvndep	0m 34s		Maven dependency ordering for branch
			_ Patch Compile Tests _
+0 🆗	mvndep	0m 9s		Maven dependency ordering for patch
+1 💚	codespell	0m 7s		No new issues.
+1 💚	blanks	0m 0s		The patch has no blanks issues.
			_ Other Tests _
+1 💚	asflicense	0m 51s		The patch does not generate ASF License warnings.
		9m 4s

Subsystem	Report/Notes
Docker	ClientAPI=1.54 ServerAPI=1.54 base: https://ci-hadoop.apache.org/job/tez-multibranch/job/PR-489/3/artifact/out/Dockerfile
GITHUB PR	#489
Optional Tests	dupname asflicense codespell detsecrets xmllint
uname	Linux e18429ac581d 5.15.0-174-generic #184-Ubuntu SMP Fri Mar 13 18:41:50 UTC 2026 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	/home/jenkins/jenkins-agent/workspace/tez-multibranch_PR-489/src/.yetus/personality.sh
git revision	master / 5f1d624
Max. process+thread count	50 (vs. ulimit of 5500)
modules	C: tez-api tez-runtime-internals tez-runtime-library tez-mapreduce tez-dag U: .
Console output	https://ci-hadoop.apache.org/job/tez-multibranch/job/PR-489/3/console
versions	git=2.43.0 maven=3.9.14 codespell=2.4.1
Powered by	Apache Yetus 0.15.1 https://yetus.apache.org

This message was automatically generated.

[Aggarwal-Raghav]

@abstractdog , please check the CI outcome for #493 https://ci-hadoop.apache.org/job/tez-multibranch/job/PR-493/1/Yetus_20Report/
for generated proto code the spotbugs is giving -1 which is wrong IMO. This PR will address it, Let me know what's your stance on this

[Aggarwal-Raghav]

Hadoop also has this: https://github.com/apache/hadoop/blob/trunk/hadoop-yarn-project/hadoop-yarn/dev-support/findbugs-exclude.xml#L18C1-L33C9

[abstractdog]

+1
This is a very good improvement, not only prevents Findbugs alerts that we cannot help with, but also simplifies our exclude files, thanks @Aggarwal-Raghav !