closed/javax/swing/plaf/metal/MetalUtils/bug6190373.java apparently has a bug surfaced in LWAWT but quite independent of it. See the analysis in http://java.net/jira/browse/MACOSX_PORT-724.
After some consideration it was decided not to add a restriction to the coding practice but to fix the issue in jdk8. So there's maybe nothing to fix in this test: just keep this CR for Aurora matching purposes.