Add explicit imports to avoid conflicts with classes added to java.lang, like record

[BramliAK]

What's changed?

Add explicit imports to avoid conflicts with classes added to java.lang, like record

• For Add explicit imports to avoid conflicts with classes added to java.lang, like Record rewrite-migrate-java#540

Checklist

• I've added unit tests to cover both positive and negative cases
• I've read and applied the recipe conventions and best practices
• I've used the IntelliJ IDEA auto-formatter on affected files

[timtebeek]

Thanks for the helpful change here @BramliAK ! Indeed seems like the right place to make this change, and we can now follow up with a recipe in rewrite-migrate-java that adds explicit imports as needed for fix openrewrite/rewrite-migrate-java#540.