new step to expand java wildcard imports

[Plunts]

As requested in #2594, this MR introduces an expandWildcardImports step. To do this, JavaParser is used to parse the complete sourcecode and resolve the full qualified name of all used classes and static methods.

The operation is currently only implemented for Gradle, as I am not familiar enough with the maven plugin system to provide the necessary classpath information.

[nedtwigg]

Amazing! This would be a fantastic feature to merge. I don't have time to examine it in detail at the moment, burned by time budget on fixing problems in our CI. Thanks for the great contribution and I'll try to get to this ASAP! Hopefully some other reviewers can take a stab at it...

[Pankraz76]

great feature, thanks.

• keycloak/keycloak#43235

[Pankraz76]

finally don´t have to rely on rewrite anymore, as its not applying all.

• Add importOrder and forbidWildcardImports to Spotless keycloak/keycloak#43235
  • Add importOrder and forbidWildcardImports to Spotless keycloak/keycloak#43235 (comment)
• https://docs.openrewrite.org/recipes/java/removeunusedimports

[Pankraz76]

rebase will fix CI, thanks for the feature.

Sorry for noisy delay.

[Pankraz76]

well done seems ready to merge.

polish and might deprecating removeWildcard could be follow up issues.

Appreciate the initiative and contribution.

[Pankraz76]

package does not reflect folder name. idk whats the ideal for this.

• spotless/rewrite.yml

  Line 33 in fed07d9

  - org.openrewrite.staticanalysis.LowercasePackage

Suggested change

	package com.diffplug.spotless.glue.javaparser;
	package com.diffplug.spotless.glue.javaParser;