JDK9b120 + OS X 10.10

java.lang.RuntimeException: invalid extended modifiers: expected 1536 to equal 9728
at jdk.testlibrary.Asserts.fail(Asserts.java:540)
at jdk.testlibrary.Asserts.assertEquals(Asserts.java:209)
at jdk.testlibrary.Asserts.assertEQ(Asserts.java:182)
at MouseButtonsAndKeyMasksTest.doTest(MouseButtonsAndKeyMasksTest.java:275)
at MouseButtonsAndKeyMasksTest.main(MouseButtonsAndKeyMasksTest.java:300)
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(java.base@9-ea/Native Method)
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(java.base@9-ea/NativeMethodAccessorImpl.java:62)
at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(java.base@9-ea/DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(java.base@9-ea/Method.java:531)
at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:110)
at java.lang.Thread.run(java.base@9-ea/Thread.java:843)


Doesn't fail, e.g., on Ubuntu 14.04 Linux

at a 1st glance looks like a regression