HADOOP-18808. LogExactlyOnce to add a debug() method

[steveloughran]

How was this patch tested?

waiting for yetus

For code changes:

• Does the title or this PR starts with the corresponding JIRA issue id (e.g. 'HADOOP-17799. Your PR title ...')?
• Object storage: have the integration tests been executed and the endpoint declared according to the connector-specific documentation?
• If adding new dependencies to the code, are these dependencies licensed in a way that is compatible for inclusion under ASF 2.0?
• If applicable, have you updated the LICENSE, LICENSE-binary, NOTICE-binary files?

[hadoop-yetus]

💔 -1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	1m 0s		Docker mode activated.
			_ Prechecks _
+1 💚	dupname	0m 0s		No case conflicting files found.
+0 🆗	codespell	0m 1s		codespell was not available.
+0 🆗	detsecrets	0m 1s		detect-secrets was not available.
+1 💚	@author	0m 0s		The patch does not contain any @author tags.
-1 ❌	test4tests	0m 0s		The patch doesn't appear to include any new or modified tests. Please justify why no new tests are needed for this patch. Also please list what manual steps were performed to verify this patch.
			_ trunk Compile Tests _
+1 💚	mvninstall	53m 18s		trunk passed
+1 💚	compile	19m 37s		trunk passed with JDK Ubuntu-11.0.19+7-post-Ubuntu-0ubuntu120.04.1
+1 💚	compile	17m 31s		trunk passed with JDK Private Build-1.8.0_362-8u372-gaus1-0ubuntu120.04-b09
+1 💚	checkstyle	1m 14s		trunk passed
+1 💚	mvnsite	1m 42s		trunk passed
+1 💚	javadoc	1m 14s		trunk passed with JDK Ubuntu-11.0.19+7-post-Ubuntu-0ubuntu120.04.1
+1 💚	javadoc	0m 52s		trunk passed with JDK Private Build-1.8.0_362-8u372-gaus1-0ubuntu120.04-b09
+1 💚	spotbugs	2m 38s		trunk passed
+1 💚	shadedclient	37m 1s		branch has no errors when building and testing our client artifacts.
			_ Patch Compile Tests _
+1 💚	mvninstall	1m 0s		the patch passed
+1 💚	compile	17m 26s		the patch passed with JDK Ubuntu-11.0.19+7-post-Ubuntu-0ubuntu120.04.1
+1 💚	javac	17m 26s		the patch passed
+1 💚	compile	16m 55s		the patch passed with JDK Private Build-1.8.0_362-8u372-gaus1-0ubuntu120.04-b09
+1 💚	javac	16m 55s		the patch passed
+1 💚	blanks	0m 0s		The patch has no blanks issues.
+1 💚	checkstyle	1m 19s		the patch passed
+1 💚	mvnsite	1m 47s		the patch passed
+1 💚	javadoc	1m 16s		the patch passed with JDK Ubuntu-11.0.19+7-post-Ubuntu-0ubuntu120.04.1
+1 💚	javadoc	0m 58s		the patch passed with JDK Private Build-1.8.0_362-8u372-gaus1-0ubuntu120.04-b09
+1 💚	spotbugs	2m 51s		the patch passed
+1 💚	shadedclient	37m 58s		patch has no errors when building and testing our client artifacts.
			_ Other Tests _
+1 💚	unit	19m 34s		hadoop-common in the patch passed.
+1 💚	asflicense	1m 6s		The patch does not generate ASF License warnings.
		241m 52s

Subsystem	Report/Notes
Docker	ClientAPI=1.43 ServerAPI=1.43 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-5850/1/artifact/out/Dockerfile
GITHUB PR	#5850
Optional Tests	dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets
uname	Linux 9f5ad9d1eddc 4.15.0-212-generic #223-Ubuntu SMP Tue May 23 13:09:22 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/bin/hadoop.sh
git revision	trunk / 9759bdc
Default Java	Private Build-1.8.0_362-8u372-gaus1-0ubuntu120.04-b09
Multi-JDK versions	/usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.19+7-post-Ubuntu-0ubuntu120.04.1 /usr/lib/jvm/java-8-openjdk-amd64:Private Build-1.8.0_362-8u372-gaus1-0ubuntu120.04-b09
Test Results	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-5850/1/testReport/
Max. process+thread count	1278 (vs. ulimit of 5500)
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-5850/1/console
versions	git=2.25.1 maven=3.6.3 spotbugs=4.2.2
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[mukund-thakur]

LGTM +1

[ayushtkn]

LGTM