java.lang.ClassCastException: sun.awt.HeadlessToolkit cannot be cast to sun.awt.SunToolkit
        at bug6462008.main(bug6462008.java:48)
        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:606)
        at com.sun.javatest.regtest.MainWrapper$MainThread.run(MainWrapper.java:96)
        at java.lang.Thread.run(Thread.java:724)