The regression test fails with JDK 7b73 on X11 (linux-i586, Gnome/Metacity 2.24) with the following output:

----------System.err:(15/843)----------
java.lang.RuntimeException: Popup shown on the left side of screen, should be on the right.

at bug4786415.main(bug4786415.java:75)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:617)
at com.sun.javatest.regtest.MainWrapper$MainThread.run(MainWrapper.java:94)
at java.lang.Thread.run(Thread.java:717)