[java] Fix #4990 - Add attribute @PackageQualifier to ASTClassType

[oowekyala]

Describe the PR

Related issues

• Fixes [java] Add an attribute @PackageQualifier to ASTClassType #4990

Ready?

• Added unit tests for fixed bug/feature
• Passing all unit tests
• Complete build ./mvnw clean verify passes (checked automatically by github actions)
• Added (in-code) documentation (if needed)

[pmd-test]

	1 Message
📖	Compared to master: This changeset changes 0 violations, introduces 0 new violations, 0 new errors and 0 new configuration errors, removes 0 violations, 0 errors and 0 configuration errors. Download full report as build artifact
✅	Compared to master: This changeset changes 0 violations, introduces 0 new violations, 0 new errors and 0 new configuration errors, removes 0 violations, 0 errors and 0 configuration errors. Download full report as build artifact
✅	Compared to master: This changeset changes 0 violations, introduces 0 new violations, 0 new errors and 0 new configuration errors, removes 0 violations, 0 errors and 0 configuration errors. Download full report as build artifact

Generated by 🚫 Danger

[adangel]

I think, we should add an explicit test to verify the use case, that this change is supposed to fix. You can use the code snippet from #4946 and verify that that PackageQualifier has the expected values (the package name). In most tests I've seen here, we expect "null"....

[adangel]

Thanks!