After some more testing that seems to be an upstream openjdk issue as reported in https://bugs.openjdk.java.net/browse/JDK-8185424 [1].
Reason why it did only show up in debian/ubuntu builds is the patch: disable-doclint-by-default.diff. which defaults javadoc to -Xdoclint:none to avoid warnings. Adding that -Xdoclint:none option manually make the issue easily reproducible in a.) oracle binary jdk 8u151 b.) jdk8u openjdk mercurial checkout c.) not in oracle binary jdk 9.0.1 As i can't directly comment on the openjdk bug i asked in #openjdk to get that issue re-opened there and the info added. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1706969 Title: JavaDoc reports warning for methods named is*Property* To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openjdk-8/+bug/1706969/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs