There are serious fifteen year old reported errors in java.util.Random which have never been fixed and have finally been declared WONTFIX. Ten years ago I reported that ArrayList's get(), set(), and add() methods were non-inlineable (!) and could be trivially repaired with a single line of code: this was never fixed until recent versions of HotSpot which finally obviated the issue.
We're talking core classes here. So I don't have a lot of faith in the bug reporting process.
