The test uses the `DragSource.getDefaultDragSource()` which throws HeadlessException. The test should be marked as headful.
------------- Commit messages: - 8307135: java/awt/dnd/NotReallySerializableTest/NotReallySerializableTest.java failed Changes: https://git.openjdk.org/jdk/pull/13733/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=13733&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8307135 Stats: 2 lines in 1 file changed: 1 ins; 0 del; 1 mod Patch: https://git.openjdk.org/jdk/pull/13733.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/13733/head:pull/13733 PR: https://git.openjdk.org/jdk/pull/13733