I confirm that jtreg 4.2-b13-1ubuntu0.1~18.04.1 works as expected. Please notice that jtreg 4.2-b10-1 is not affect as it is old enough to have been build with openjdk-8. Had it ever been rebuild with openjdk- lts it would have been affected.
[More Information] $ apt policy jtreg jtreg: Installed: 4.2-b13-1ubuntu0.1~18.04.1 Candidate: 4.2-b13-1ubuntu0.1~18.04.1 Version table: *** 4.2-b13-1ubuntu0.1~18.04.1 500 500 http://us.archive.ubuntu.com/ubuntu bionic-proposed/universe amd64 Packages 100 /var/lib/dpkg/status 4.2-b10-1 500 500 http://us.archive.ubuntu.com/ubuntu bionic/universe amd64 Packages ** Tags removed: verification-needed verification-needed-bionic ** Tags added: verification-done-bionic -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1803628 Title: jtreg fails to run under openjdk-8 due to api incompatibility with openjdk-9 or later To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/jtreg/+bug/1803628/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs