Migrate Commons Lang from 2 to 3

[jonesbusy]

Hello kubernetes developers! 👋

This is an automated pull request created by the Jenkins Plugin Modernizer tool. The tool has applied the following recipes to modernize the plugin:

Migrate Commons Lang from 2 to 3 and StringEscapeUtils to Commons Text

io.jenkins.tools.pluginmodernizer.MigrateCommonsLang2ToLang3AndCommonText

Migrate Commons Lang from 2 to 3 and StringEscapeUtils to Commons Text.

This pull request upgrades Apache Commons Lang 2 to Apache Commons Lang 3. Additionally, if the plugin uses StringEscapeUtils from Apache Commons Lang, it will be migrated to use Apache Commons Text instead.
The Apache Commons community recommends using Apache Commons Text for string escaping operations, as it offers a more focused and feature-rich API for text processing.

What's Changed?

• Migrated from deprecated/EOL Apache Commons Lang 2 to Commons Lang 3.
• If applicable: Transitioned from deprecated/EOL StringEscapeUtils in Apache Commons Lang to Commons Text.

[jglick]

Would prefer to have CL2 usages replaced with plain Java idioms rather than introducing the new dep. (To src/main/java/; do not care about test-scoped deps.) Do we not have an automatic translator for the common cases?

[jglick]

kubernetes-plugin/src/main/java/org/csanchez/jenkins/plugins/kubernetes/KubernetesSlave.java

Lines 688 to 689 in 39f3fb8

	Validate.notNull(podTemplate);
	Validate.notNull(cloud);

better handled with Objects

[jglick]

kubernetes-plugin/src/main/java/org/csanchez/jenkins/plugins/kubernetes/ContainerTemplate.java

Line 310 in 39f3fb8

if (!StringUtils.isEmpty(shell)) {

better inlined

[jonesbusy]

Sure. The OpenRewrite recipe I have naively replace it with common lang3.

When it is not wanted I just use copilot AI assisted PR to perform Java 17 native API changes. Most of the time it gives good results.