HBASE-29860 Fix NullPointerException on Maven site build

[PDavid]

This occurs when the parser encounters a section in an .xdoc file that it cannot properly index, such as sections without a name attribute.

[Apache-HBase]

🎊 +1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	0m 14s		Docker mode activated.
-0 ⚠️	yetus	0m 5s		Unprocessed flag(s): --brief-report-file --spotbugs-strict-precheck --author-ignore-list --blanks-eol-ignore-file --blanks-tabs-ignore-file --quick-hadoopcheck
			_ Prechecks _
			_ branch-2.5 Compile Tests _
			_ Patch Compile Tests _
			_ Other Tests _
		1m 21s

Subsystem	Report/Notes
Docker	ClientAPI=1.53 ServerAPI=1.53 base: https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-7693/1/artifact/yetus-jdk8-hadoop2-check/output/Dockerfile
GITHUB PR	#7693
Optional Tests
uname	Linux 977d5fb50842 6.14.0-1018-aws #18~24.04.1-Ubuntu SMP Mon Nov 24 19:46:27 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/hbase-personality.sh
git revision	branch-2.5 / a7f93a1
Max. process+thread count	29 (vs. ulimit of 30000)
modules	C: . U: .
Console output	https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-7693/1/console
versions	git=2.34.1 maven=3.9.8
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[Apache-HBase]

🎊 +1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	0m 55s		Docker mode activated.
-0 ⚠️	yetus	0m 6s		Unprocessed flag(s): --brief-report-file --spotbugs-strict-precheck --author-ignore-list --blanks-eol-ignore-file --blanks-tabs-ignore-file --quick-hadoopcheck
			_ Prechecks _
			_ branch-2.5 Compile Tests _
			_ Patch Compile Tests _
			_ Other Tests _
		2m 16s

Subsystem	Report/Notes
Docker	ClientAPI=1.43 ServerAPI=1.43 base: https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-7693/1/artifact/yetus-jdk11-hadoop3-check/output/Dockerfile
GITHUB PR	#7693
Optional Tests
uname	Linux d4ef50852b14 5.4.0-1103-aws #111~18.04.1-Ubuntu SMP Tue May 23 20:04:10 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/hbase-personality.sh
git revision	branch-2.5 / a7f93a1
Max. process+thread count	38 (vs. ulimit of 30000)
modules	C: . U: .
Console output	https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-7693/1/console
versions	git=2.34.1 maven=3.9.8
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[Apache-HBase]

🎊 +1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	0m 49s		Docker mode activated.
-0 ⚠️	yetus	0m 6s		Unprocessed flag(s): --brief-report-file --spotbugs-strict-precheck --author-ignore-list --blanks-eol-ignore-file --blanks-tabs-ignore-file --quick-hadoopcheck
			_ Prechecks _
			_ branch-2.5 Compile Tests _
			_ Patch Compile Tests _
			_ Other Tests _
		2m 39s

Subsystem	Report/Notes
Docker	ClientAPI=1.43 ServerAPI=1.43 base: https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-7693/1/artifact/yetus-jdk17-hadoop3-check/output/Dockerfile
GITHUB PR	#7693
Optional Tests
uname	Linux 9ecc59545e68 5.4.0-1103-aws #111~18.04.1-Ubuntu SMP Tue May 23 20:04:10 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/hbase-personality.sh
git revision	branch-2.5 / a7f93a1
Max. process+thread count	42 (vs. ulimit of 30000)
modules	C: . U: .
Console output	https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-7693/1/console
versions	git=2.34.1 maven=3.9.8
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[Apache-HBase]

💔 -1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	0m 14s		Docker mode activated.
			_ Prechecks _
+1 💚	dupname	0m 0s		No case conflicting files found.
+0 🆗	codespell	0m 0s		codespell was not available.
+0 🆗	detsecrets	0m 0s		detect-secrets was not available.
+1 💚	@author	0m 0s		The patch does not contain any @author tags.
			_ branch-2.5 Compile Tests _
+1 💚	mvninstall	2m 33s		branch-2.5 passed
-1 ❌	mvnsite	0m 13s	/branch-mvnsite-root.txt	root in branch-2.5 failed.
+1 💚	spotless	0m 36s		branch has no errors when running spotless:check.
			_ Patch Compile Tests _
+1 💚	mvninstall	2m 12s		the patch passed
+1 💚	blanks	0m 0s		The patch has no blanks issues.
+1 💚	mvnsite	2m 27s		the patch passed
+1 💚	xmllint	0m 0s		No new issues.
+1 💚	spotless	0m 35s		patch has no errors when running spotless:check.
			_ Other Tests _
+1 💚	asflicense	0m 12s		The patch does not generate ASF License warnings.
		10m 26s

Subsystem	Report/Notes
Docker	ClientAPI=1.52 ServerAPI=1.52 base: https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-7693/1/artifact/yetus-general-check/output/Dockerfile
GITHUB PR	#7693
Optional Tests	dupname asflicense mvnsite codespell detsecrets xmllint spotless
uname	Linux e991bfff222d 6.14.0-1018-aws #18~24.04.1-Ubuntu SMP Mon Nov 24 19:46:27 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/hbase-personality.sh
git revision	branch-2.5 / a7f93a1
Max. process+thread count	76 (vs. ulimit of 30000)
modules	C: . U: .
Console output	https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-7693/1/console
versions	git=2.34.1 maven=3.9.8 xmllint=20913
Powered by	Apache Yetus 0.15.0 https://yetus.apache.org

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[apurtell]

I approved the changes because they are good on their own merit but do not seem to be fixing the site build issues per the precommit report.

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-site-plugin:3.21.0:site (default-site) on project hbase: Execution default-site of goal org.apache.maven.plugins:maven-site-plugin:3.21.0:site failed. NullPointerException -> [Help 1]

I think more needs to be done here before we can claim it is a NPE fix @PDavid

[PDavid]

I approved the changes because they are good on their own merit but do not seem to be fixing the site build issues per the precommit report.

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-site-plugin:3.21.0:site (default-site) on project hbase: Execution default-site of goal org.apache.maven.plugins:maven-site-plugin:3.21.0:site failed. NullPointerException -> [Help 1]

I think more needs to be done here before we can claim it is a NPE fix @PDavid

Hi @apurtell,
Many thanks for your feedback. 👍 Maybe I'm wrong but I understood the Yetus result as the mvn site fails in base branch ("root in branch-2.5 failed.") and in this feature branch mvn site is successful (the patch passed): https://ci-hbase.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-7693/1/artifact/yetus-general-check/output/patch-mvnsite-root.txt