Window's title height was increased in Gnome/Unity since it was written, so the test tries to initiate drag on frame's header instead of its body. Making the frame undecorated solves the issue. Testing is green on all platforms.
------------- Commit messages: - initial Changes: https://git.openjdk.java.net/jdk/pull/8221/files Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=8221&range=00 Issue: https://bugs.openjdk.java.net/browse/JDK-8159694 Stats: 11 lines in 3 files changed: 6 ins; 1 del; 4 mod Patch: https://git.openjdk.java.net/jdk/pull/8221.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/8221/head:pull/8221 PR: https://git.openjdk.java.net/jdk/pull/8221
