[jermo]

I've found that Project Lombok solves this problem for me. Simply add a @Data or @Value annotation and it will generate getters/setters/hashCode/toString etc. https://projectlombok.org/features/Value.html

[lmm]

I started with Lombok but found that you're effectivly writing a different language from Java anyway - all your tools (IDEs, code coverage, binary compatibility checking, build infrastructure... ) need to support it. So it's just as much effort as Scala, and gives you a lot less in return.