java/awt/Mixing/HWDisappear.java fails

The test fails with JDK 7b72:

----------System.err:(15/828)----------
java.lang.RuntimeException: The button cannot be clicked.
at HWDisappear.fail(HWDisappear.java:230)
at HWDisappear.init(HWDisappear.java:121)
at HWDisappear.main(HWDisappear.java:156)
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)