Backport "HBASE-22504 Addendum: restore findCommonPrefix" to branch-2.3

[ndimiduk]

Address incompatibility issue raised in 2.3.0RC0 vote thread.

[Apache-HBase]

💔 -1 overall

Vote	Subsystem	Runtime	Comment
+0 🆗	reexec	0m 0s	Docker mode activated.
-1 ❌	patch	0m 8s	#1974 does not apply to branch-2.3. Rebase required? Wrong Branch? See https://yetus.apache.org/documentation/in-progress/precommit-patchnames for help.

Subsystem	Report/Notes
GITHUB PR	#1974
Console output	https://builds.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-1974/1/console
versions	git=2.17.1
Powered by	Apache Yetus 0.11.1 https://yetus.apache.org

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[Apache-HBase]

💔 -1 overall

Vote	Subsystem	Runtime	Comment
+0 🆗	reexec	0m 0s	Docker mode activated.
-1 ❌	patch	0m 6s	#1974 does not apply to branch-2.3. Rebase required? Wrong Branch? See https://yetus.apache.org/documentation/in-progress/precommit-patchnames for help.

Subsystem	Report/Notes
GITHUB PR	#1974
Console output	https://builds.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-1974/1/console
versions	git=2.17.1
Powered by	Apache Yetus 0.11.1 https://yetus.apache.org

This message was automatically generated.

[Apache-HBase]

💔 -1 overall

Vote	Subsystem	Runtime	Comment
+0 🆗	reexec	0m 0s	Docker mode activated.
-1 ❌	patch	0m 6s	#1974 does not apply to branch-2.3. Rebase required? Wrong Branch? See https://yetus.apache.org/documentation/in-progress/precommit-patchnames for help.

Subsystem	Report/Notes
GITHUB PR	#1974
Console output	https://builds.apache.org/job/HBase-PreCommit-GitHub-PR/job/PR-1974/1/console
versions	git=2.17.1
Powered by	Apache Yetus 0.11.1 https://yetus.apache.org

This message was automatically generated.