HADOOP-19964. Restore TimedOutTestsListener thread dumps on test timeout.

[joseluisll]

Description of PR

JIRA: HADOOP-19964

GenericTestUtils.waitFor built a 16 KB thread dump into every
TimeoutException message, at 650 call sites. It now dumps to stderr the
moment the wait expires, while the threads are still hung, and the message
drops to one line. Sample failure report: 18,223 -> 1,642 bytes.

TimedOutTestsListener has registered nothing since HADOOP-19415 Part 4 moved
Surefire onto the JUnit Platform provider, which ignores the listener
property. It now implements TestExecutionListener, so the property the eight
poms already carry binds to it once the provider accepts platform listeners
(SUREFIRE-1639, apache/maven-surefire#3438). Dormant until then. No pom is
touched.

• -Dhadoop.test.timedout.dump=false disables dumps.
• -Dhadoop.test.timedout.dump.limit (default 5) caps them per JVM. Both entry
  points share the budget.
• The message records "Thread dump printed to stderr." only when one was.

Not covered: a fork killed at forkedProcessTimeoutInSeconds (Shutdown.KILL
-> Runtime.halt()). HADOOP-19950 captures those.

Release note: waitFor's TimeoutException message no longer carries the
thread dump. Nothing in the Hadoop tree asserted on it; downstream code that
does will need adjusting.

Contains content generated by Claude Code.

How was this patch tested?

mvn test -pl hadoop-common-project/hadoop-common -Dtest='TestTimedOutTestsListener,TestGenericTestUtils'
— 15 tests, all pass.

TestTimedOutTestsListener covers deadlock detection, timeout-failure
detection, the off switch, the dump limit and its elision notice,
dumpForTimeout's return value, and waitFor's exact message with a dump
printed, with dumps off, and with the budget spent — driving the real
waitFor. Checkstyle clean on both listener files; the two violations the 2012
test file carried are fixed.

For code changes:

• Does the title of this PR start with the corresponding JIRA issue id?
• Object storage: integration tests — N/A
• New dependencies licensed compatibly with ASF 2.0 — N/A, none added
• LICENSE, LICENSE-binary, NOTICE-binary updated — N/A

AI Tooling

• The PR includes the phrase "Contains content generated by Claude Code"
• My use of AI contributions follows the ASF legal policy
  https://www.apache.org/legal/generative-tooling.html

[joseluisll]

Cross-reference: this pairs with #8659 (HDFS-17957), which sets a default
junit.jupiter.execution.timeout.default on the hdfs modules.
The two cover different halves of the same problem. This PR restores the thread
dump for tests that fail through JUnit, and explicitly cannot cover a fork
killed at forkedProcessTimeoutInSeconds: Surefire sends the fork
Shutdown.KILL, the fork executes Runtime.halt(), and that bypasses
listeners and shutdown hooks alike. #8659 is what moves hung hdfs tests off
that path — with a default @Timeout they fail through JUnit instead, at which
point this listener produces the dump. Neither PR alone yields a usable
diagnostic for a hung HDFS test.
The two touch one file in common, hadoop-hdfs-project/hadoop-hdfs/pom.xml:
#8659 adds inside <systemPropertyVariables>, this one removes the dead
<properties> listener block just after it. I trial-merged the two heads and
the result is clean, with both changes intact, in either order — no rebase
needed whichever lands first.

[pan3793]

The AI-generated PR description is too verbose

[hadoop-yetus]

🎊 +1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	18m 28s		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.
+1 💚	test4tests	0m 0s		The patch appears to include 3 new or modified test files.
			_ trunk Compile Tests _
+1 💚	mvninstall	49m 7s		trunk passed
+1 💚	compile	18m 35s		trunk passed with JDK Ubuntu-21.0.11+10-1-24.04.2-Ubuntu
+1 💚	compile	18m 7s		trunk passed with JDK Ubuntu-17.0.19+10-1-24.04.2-Ubuntu
+1 💚	checkstyle	1m 29s		trunk passed
+1 💚	mvnsite	2m 0s		trunk passed
+1 💚	javadoc	1m 27s		trunk passed with JDK Ubuntu-21.0.11+10-1-24.04.2-Ubuntu
+1 💚	javadoc	1m 24s		trunk passed with JDK Ubuntu-17.0.19+10-1-24.04.2-Ubuntu
+1 💚	spotbugs	3m 12s		trunk passed
+1 💚	shadedclient	37m 2s		branch has no errors when building and testing our client artifacts.
			_ Patch Compile Tests _
+1 💚	mvninstall	1m 15s		the patch passed
+1 💚	compile	16m 51s		the patch passed with JDK Ubuntu-21.0.11+10-1-24.04.2-Ubuntu
+1 💚	javac	16m 51s		the patch passed
+1 💚	compile	18m 16s		the patch passed with JDK Ubuntu-17.0.19+10-1-24.04.2-Ubuntu
+1 💚	javac	18m 16s		the patch passed
+1 💚	blanks	0m 0s		The patch has no blanks issues.
+1 💚	checkstyle	1m 23s		hadoop-common-project/hadoop-common: The patch generated 0 new + 10 unchanged - 3 fixed = 10 total (was 13)
+1 💚	mvnsite	1m 57s		the patch passed
+1 💚	javadoc	1m 20s		the patch passed with JDK Ubuntu-21.0.11+10-1-24.04.2-Ubuntu
+1 💚	javadoc	1m 18s		the patch passed with JDK Ubuntu-17.0.19+10-1-24.04.2-Ubuntu
+1 💚	spotbugs	3m 22s		the patch passed
+1 💚	shadedclient	37m 42s		patch has no errors when building and testing our client artifacts.
			_ Other Tests _
+1 💚	unit	23m 26s		hadoop-common in the patch passed.
+1 💚	asflicense	1m 15s		The patch does not generate ASF License warnings.
		260m 15s

Subsystem	Report/Notes
Docker	ClientAPI=1.55 ServerAPI=1.55 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-8682/3/artifact/out/Dockerfile
GITHUB PR	#8682
Optional Tests	dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets
uname	Linux 0d6d2dafd7bb 5.15.0-181-generic #191-Ubuntu SMP Fri May 22 19:09:02 UTC 2026 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/bin/hadoop.sh
git revision	trunk / d2d6f0b
Default Java	Ubuntu-17.0.19+10-1-24.04.2-Ubuntu
Multi-JDK versions	/usr/lib/jvm/java-21-openjdk-amd64:Ubuntu-21.0.11+10-1-24.04.2-Ubuntu /usr/lib/jvm/java-17-openjdk-amd64:Ubuntu-17.0.19+10-1-24.04.2-Ubuntu
Test Results	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-8682/3/testReport/
Max. process+thread count	1557 (vs. ulimit of 10000)
modules	C: hadoop-common-project/hadoop-common U: hadoop-common-project/hadoop-common
Console output	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-8682/3/console
versions	git=2.43.0 maven=3.9.15 spotbugs=4.9.7
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[pan3793]

The Maven community has accepted SUREFIRE-1639, and it will be included in the 3.6.0-M2. Let me convert this to a draft first and wait for the release.