TEZ-4633: Set Baseline to JDK 21 and cleanup obsolete JVM configurations

[Aggarwal-Raghav]

• Get rid of deprecated JVM OPTS flags
• Removed java8-16, java17 profiles and moved the version specific src directories in tez-javadoc-tools to standard directory

[tez-yetus]

💔 -1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	8m 56s		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.
+1 💚	test4tests	0m 0s		The patch appears to include 2 new or modified test files.
			_ master Compile Tests _
+0 🆗	mvndep	0m 41s		Maven dependency ordering for branch
+1 💚	mvninstall	4m 42s		master passed
+1 💚	compile	3m 56s		master passed
+1 💚	checkstyle	2m 18s		master passed
-1 ❌	mvnsite	0m 45s	/branch-mvnsite-tez-api.txt	tez-api in master failed.
-1 ❌	mvnsite	1m 57s	/branch-mvnsite-root.txt	root in master failed.
+1 💚	javadoc	2m 56s		master passed
+0 🆗	spotbugs	1m 20s		tez-api in master has 92 extant spotbugs warnings.
+0 🆗	spotbugs	0m 39s		tez-tools/tez-javadoc-tools in master has 3 extant spotbugs warnings.
+0 🆗	spotbugs	0m 23s		branch/docs no spotbugs output file (spotbugsXml.xml)
+0 🆗	spotbugs	7m 24s		root in master has 1054 extant spotbugs warnings.
			_ Patch Compile Tests _
+0 🆗	mvndep	0m 16s		Maven dependency ordering for patch
+1 💚	mvninstall	4m 27s		the patch passed
+1 💚	codespell	2m 5s		No new issues.
+1 💚	compile	4m 36s		the patch passed
+1 💚	javac	4m 36s		the patch passed
+1 💚	blanks	0m 0s		The patch has no blanks issues.
+1 💚	checkstyle	0m 31s		tez-api: The patch generated 0 new + 80 unchanged - 3 fixed = 80 total (was 83)
-0 ⚠️	checkstyle	0m 27s	/results-checkstyle-tez-tools_tez-javadoc-tools.txt	tez-tools/tez-javadoc-tools: The patch generated 1 new + 0 unchanged - 0 fixed = 1 total (was 0)
+1 💚	checkstyle	0m 20s		The patch passed checkstyle in docs
-0 ⚠️	checkstyle	1m 12s	/results-checkstyle-root.txt	root: The patch generated 1 new + 80 unchanged - 3 fixed = 81 total (was 83)
-1 ❌	markdownlint	0m 5s	/results-markdownlint.txt	The patch generated 1 new + 118 unchanged - 1 fixed = 119 total (was 119)
-1 ❌	mvnsite	0m 53s	/patch-mvnsite-tez-api.txt	tez-api in the patch failed.
-1 ❌	mvnsite	1m 58s	/patch-mvnsite-root.txt	root in the patch failed.
+1 💚	javadoc	2m 55s		the patch passed
+0 🆗	spotbugs	0m 22s		docs has no data from spotbugs
			_ Other Tests _
+1 💚	unit	71m 27s		root in the patch passed.
+1 💚	asflicense	2m 16s		The patch does not generate ASF License warnings.
		145m 43s

Subsystem	Report/Notes
Docker	ClientAPI=1.54 ServerAPI=1.54 base: https://ci-hadoop.apache.org/job/tez-multibranch/job/PR-506/1/artifact/out/Dockerfile
Optional Tests	dupname compile unit asflicense codespell detsecrets markdownlint mvnsite javac javadoc xmllint spotbugs checkstyle
uname	Linux f93f32aa7d49 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	tez-personality.sh
git revision	master / 330fdc8
Default Java	Eclipse Adoptium-21.0.11+10-LTS
Test Results	https://ci-hadoop.apache.org/job/tez-multibranch/job/PR-506/1/testReport/
Max. process+thread count	1315 (vs. ulimit of 5500)
modules	C: tez-api tez-tools/tez-javadoc-tools docs . U: .
Console output	https://ci-hadoop.apache.org/job/tez-multibranch/job/PR-506/1/console
versions	git=2.43.0 maven=3.9.15 spotbugs=4.9.3 codespell=2.4.1 markdownlint=0.46.0
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[Aggarwal-Raghav]

The mvn site issues will be fixed when we move to Hadoop-3.5.0, for more info: #478

[abstractdog]

The mvn site issues will be fixed when we move to Hadoop-3.5.0, for more info: #478
thanks, I hope we can get hadoop 3.5 upgrade in soon