Upgrade Spotless and wire Cleanthat

[blacelle]

This proposes an upgrade of Spotless, and the integration of Cleanthat (to improve automatically the codebase).

The default configuration integrate SafeAndConsensual mutators.

[skylot]

Unfortunately, spotless stop supporting java 8 in version 6.14.0 and jadx still uses java 8 for build. I plan to move to java 11 in future versions, but not decided in which one yet.

Another issue: I don't want integration tests to be changed by cleanthat (but formatting with spotless is fine) and for now I am not sure how to archive this.

So, I can't accept this PR right now, but once above issues are resolved I will try to add cleanthat again because it looks cool! 🙂

[blacelle]

I don't want integration tests to be changed by cleanthat (but formatting with spotless is fine) and for now I am not sure how to archive this.

I updated the PR to achieve this.

Unfortunately, spotless stop supporting java 8 in version 6.14.0 and jadx still uses java 8 for build. I plan to move to java 11 in future versions, but not decided in which one yet.

Fine. Cleanthat is also JDk11+.

So, I can't accept this PR right now, but once above issues are resolved I will try to add cleanthat again because it looks cool! 🙂

Thanks for the positive feedback.

[skylot]

I updated the PR to achieve this.

exclude 'jadx-core/src/test/java/jadx/tests/integration/**/*.java'

I mean, I want these files to be formatted by spotless but not changed by cleanthat, because code in these files IS a test, so it shouldn't be changed. 😄