Null Pointer Exception in KeyProviderCryptoExtension due to Class Not Found Exception

[teamconfx]

Description of PR

https://issues.apache.org/jira/browse/HADOOP-19338

A null pointer exception occurs in KeyProviderExtension when trying to close a null CryptoCodec object. If supplied with an invalid class name for hadoop.security.crypto.codec.classes.aes.ctr.nopadding getClassbyName throws a ClassNotFound exception and consequently the CryptoCodec object is not created.

How was this patch tested?

(1) Set hadoop.security.crypto.codec.classes.aes.ctr.nopadding to org.apache.hadoop.crypto.OpensslAesCtrCryptoCodec/
(2) Run test: org.apache.hadoop.crypto.key.TestKeyProviderCryptoExtension#testReencryptEncryptedKeys

Instead of throwing NPE, the test now throws a new IO exception which informs that the CryptoCodec object is null.

For code changes:

• [x ] 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	11m 55s		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 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	44m 14s		trunk passed
+1 💚	compile	17m 42s		trunk passed with JDK Ubuntu-11.0.25+9-post-Ubuntu-1ubuntu120.04
+1 💚	compile	16m 14s		trunk passed with JDK Private Build-1.8.0_432-8u432-gaus1-0ubuntu220.04-ga
+1 💚	checkstyle	1m 18s		trunk passed
+1 💚	mvnsite	1m 45s		trunk passed
+1 💚	javadoc	1m 16s		trunk passed with JDK Ubuntu-11.0.25+9-post-Ubuntu-1ubuntu120.04
+1 💚	javadoc	0m 54s		trunk passed with JDK Private Build-1.8.0_432-8u432-gaus1-0ubuntu220.04-ga
+1 💚	spotbugs	2m 39s		trunk passed
+1 💚	shadedclient	37m 12s		branch has no errors when building and testing our client artifacts.
			_ Patch Compile Tests _
+1 💚	mvninstall	1m 0s		the patch passed
+1 💚	compile	16m 43s		the patch passed with JDK Ubuntu-11.0.25+9-post-Ubuntu-1ubuntu120.04
+1 💚	javac	16m 43s		the patch passed
+1 💚	compile	16m 20s		the patch passed with JDK Private Build-1.8.0_432-8u432-gaus1-0ubuntu220.04-ga
+1 💚	javac	16m 20s		the patch passed
+1 💚	blanks	0m 0s		The patch has no blanks issues.
+1 💚	checkstyle	1m 15s		the patch passed
+1 💚	mvnsite	1m 42s		the patch passed
+1 💚	javadoc	1m 13s		the patch passed with JDK Ubuntu-11.0.25+9-post-Ubuntu-1ubuntu120.04
+1 💚	javadoc	0m 55s		the patch passed with JDK Private Build-1.8.0_432-8u432-gaus1-0ubuntu220.04-ga
+1 💚	spotbugs	2m 46s		the patch passed
+1 💚	shadedclient	36m 52s		patch has no errors when building and testing our client artifacts.
			_ Other Tests _
+1 💚	unit	20m 30s		hadoop-common in the patch passed.
+1 💚	asflicense	1m 5s		The patch does not generate ASF License warnings.
		236m 21s

Subsystem	Report/Notes
Docker	ClientAPI=1.47 ServerAPI=1.47 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7166/1/artifact/out/Dockerfile
GITHUB PR	#7166
Optional Tests	dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets
uname	Linux d768da0906fa 5.15.0-122-generic #132-Ubuntu SMP Thu Aug 29 13:45:52 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/bin/hadoop.sh
git revision	trunk / aa9126e
Default Java	Private Build-1.8.0_432-8u432-gaus1-0ubuntu220.04-ga
Multi-JDK versions	/usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.25+9-post-Ubuntu-1ubuntu120.04 /usr/lib/jvm/java-8-openjdk-amd64:Private Build-1.8.0_432-8u432-gaus1-0ubuntu220.04-ga
Test Results	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7166/1/testReport/
Max. process+thread count	1430 (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-7166/1/console
versions	git=2.25.1 maven=3.6.3 spotbugs=4.2.2
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