HADOOP-19580. [ABFS][BugFix][Backport 3.4] IsNonEmptyDirectory Check should loop on listing using updated continuation token

[anujmodi2021]

Description of PR

As part of recent change, loop over listing was added when checking if a directory is empty or not.
Continuation token was not getting updated in subsequent listblob calls leading to infinite loop of list calls.

[hadoop-yetus]

💔 -1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	0m 0s		Docker mode activated.
-1 ❌	docker	4m 53s		Docker failed to build run-specific yetus/hadoop:tp-19132}.

Subsystem	Report/Notes
GITHUB PR	#7719
Console output	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7719/1/console
versions	git=2.34.1
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[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 2 new or modified test files.
			_ branch-3.4 Compile Tests _
+1 💚	mvninstall	22m 13s		branch-3.4 passed
+1 💚	compile	0m 27s		branch-3.4 passed with JDK Ubuntu-11.0.27+6-post-Ubuntu-0ubuntu120.04
+1 💚	compile	0m 20s		branch-3.4 passed with JDK Private Build-1.8.0_452-8u452-gaus1-0ubuntu120.04-b09
+1 💚	checkstyle	0m 22s		branch-3.4 passed
+1 💚	mvnsite	0m 24s		branch-3.4 passed
+1 💚	javadoc	0m 27s		branch-3.4 passed with JDK Ubuntu-11.0.27+6-post-Ubuntu-0ubuntu120.04
+1 💚	javadoc	0m 24s		branch-3.4 passed with JDK Private Build-1.8.0_452-8u452-gaus1-0ubuntu120.04-b09
+1 💚	spotbugs	0m 48s		branch-3.4 passed
+1 💚	shadedclient	19m 17s		branch has no errors when building and testing our client artifacts.
			_ Patch Compile Tests _
+1 💚	mvninstall	0m 21s		the patch passed
+1 💚	compile	0m 19s		the patch passed with JDK Ubuntu-11.0.27+6-post-Ubuntu-0ubuntu120.04
+1 💚	javac	0m 19s		the patch passed
+1 💚	compile	0m 15s		the patch passed with JDK Private Build-1.8.0_452-8u452-gaus1-0ubuntu120.04-b09
+1 💚	javac	0m 15s		the patch passed
+1 💚	blanks	0m 0s		The patch has no blanks issues.
+1 💚	checkstyle	0m 13s		the patch passed
+1 💚	mvnsite	0m 19s		the patch passed
+1 💚	javadoc	0m 16s		the patch passed with JDK Ubuntu-11.0.27+6-post-Ubuntu-0ubuntu120.04
+1 💚	javadoc	0m 18s		the patch passed with JDK Private Build-1.8.0_452-8u452-gaus1-0ubuntu120.04-b09
+1 💚	spotbugs	0m 43s		the patch passed
+1 💚	shadedclient	21m 32s		patch has no errors when building and testing our client artifacts.
			_ Other Tests _
+1 💚	unit	2m 2s		hadoop-azure in the patch passed.
+1 💚	asflicense	0m 26s		The patch does not generate ASF License warnings.
		91m 2s

Subsystem	Report/Notes
Docker	ClientAPI=1.50 ServerAPI=1.50 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7719/2/artifact/out/Dockerfile
GITHUB PR	#7719
Optional Tests	dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets
uname	Linux 24bb71acef6c 5.15.0-136-generic #147-Ubuntu SMP Sat Mar 15 15:53:30 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/bin/hadoop.sh
git revision	branch-3.4 / cad71d4
Default Java	Private Build-1.8.0_452-8u452-gaus1-0ubuntu120.04-b09
Multi-JDK versions	/usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.27+6-post-Ubuntu-0ubuntu120.04 /usr/lib/jvm/java-8-openjdk-amd64:Private Build-1.8.0_452-8u452-gaus1-0ubuntu120.04-b09
Test Results	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7719/2/testReport/
Max. process+thread count	551 (vs. ulimit of 5500)
modules	C: hadoop-tools/hadoop-azure U: hadoop-tools/hadoop-azure
Console output	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7719/2/console
versions	git=2.25.1 maven=3.6.3 spotbugs=4.2.2
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