Add validation test for JEP 433: Pattern Matching for switch

[Godin]

This requires OpenJDK 17 Early Access build with openjdk/jdk#3863

[marchof]

@Godin Before we add new validation test project for Java 17 what about my proposed validation test cleanups up to Java 16 in #1165? Maybe we merge this first?

[Godin]

@marchof

what about my proposed validation test cleanups up to Java 16 in #1165? Maybe we merge this first?

yup - I was about to look at it today 😉
and this one is still draft - we can't merge it before openjdk/jdk#3863 😉 for which I did this changes locally to play with it a bit, and created this draft just to not loose/forget

[mirabilos]

Can you please move this to 0.8.9 and release 0.8.8 in the meantime? I don’t use JDK 17, only JDK 8/11 with JRE 8, but I do need the assert filtering… Thanks in advance!

[Godin]

@marchof I updated this PR to the most recent https://openjdk.org/jeps/433

[marchof]

Hi @Godin, I wonder whether we still want to provide Eclipse .project and .classpath files like for the other projects (disclaimer: JavaSE-20 is not yet supported by latest Eclipse).

[Godin]

I wonder whether we still want to provide Eclipse .project and .classpath files like for the other projects

Oops, I have them locally, but forgot to commit, because I use IntelliJ IDEA and my global .gitignore excludes everything starting with the dot 🤦

JavaSE-20 is not yet supported by latest Eclipse

I don't think that this should stop us from the addition of tests so that they can be executed at least in CI.
Thus IMO there are two options - I can create a ticket to not forget to add these files later when Eclipse will add support for JavaSE-20, or include them in this PR. Which option do you prefer?

[marchof]

I would add execution environment JavaSE-20 right now. It will be supported in 4 week with the upcoming Eclipse release.

[Godin]

@marchof done!