I have reported it under https://bugreport.java.com and got the bug number 9053855 - it is now under review by Oracle, I will update it here when they make the report public.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1770278 Title: Swing applications look strange with OpenJDK-11 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openjdk-lts/+bug/1770278/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
