Revise Javadoc config

[mp911de]

Our Javadoc config still builds with Java 1.8 and Framework has switched their Javadocs build to Java 17. We should make sure that all config is in place for proper cross-linking.

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-javadoc-plugin:3.4.0:jar (package-javadoc) on project spring-data-rest-webmvc: MavenReportException: Error while generating Javadoc: 
[ERROR] Exit code: 1 - warning: unknown enum constant When.MAYBE
[ERROR]   reason: class file for javax.annotation.meta.When not found
[ERROR] error: Error fetching URL: https://docs.spring.io/spring-data/commons/docs/current/api/ (java.io.FileNotFoundException: https://docs.spring.io/spring-data/commons/docs/current/api/package-list)