JDK Version: 1.6.0-beta2-b84, b77
Platform: solaris-sparc 10 sun4u sparc SUNW,Ultra-5_10
Failing test: javax/swing/DataTransfer/DnDAutoTests/TreeAutoTest.java

Test ssource location:
/java/re/jdk/1.6.0/promoted/latest/ws/j2se/test/javax/swing/DataTransfer/DnDAutoTests/TreeAutoTest.java

Problems:
When run the test in mustang promoted build b84 and trace back to b77, the test fails with the following exceptions, the exceptions are different with mustang b50 exceptions:

java.lang.RuntimeException: Test failed: an expected drop has not occured.
at DnDTest.managedWaitForDrop_END(DnDTest.java:174)
at DnDTest.managedMouseRelease(DnDTest.java:155)
at DnDTest.managedMouseRelease(DnDTest.java:149)
at TreeAutoTest$TreeAutoTestFrame.doRobotWork_ON_OR_INSERT_Test_4(TreeAutoTest.java:634)
at TreeAutoTest.doTests(TreeAutoTest.java:137)
at DnDTest.execute(DnDTest.java:111)
at TreeAutoTest.main(TreeAutoTest.java:160)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:589)
at com.sun.javatest.regtest.MainWrapper$MainThread.run(MainWrapper.java:83)
at java.lang.Thread.run(Thread.java:619)

Please see attached TreeAutoTest.jtr for more details.

But if I run the test by using mustang b50, I got diff exceptions:
 
java.lang.RuntimeException: Test failed: 'sports' != 'food'
at TreeAutoTest$TreeAutoTestFrame.managedWaitCorrectSelection(TreeAutoTest.java:1075)
at TreeAutoTest$TreeAutoTestFrame.impl_ON_AND_USE_SELECTION(TreeAutoTest.java:783)
at TreeAutoTest$TreeAutoTestFrame.doRobotWork_USE_SELECTION_Test_1(TreeAutoTest.java:258)
at TreeAutoTest.doTests(TreeAutoTest.java:125)
at DnDTest.execute(DnDTest.java:111)
at TreeAutoTest.main(TreeAutoTest.java:160)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at com.sun.javatest.regtest.MainWrapper$MainThread.run(MainWrapper.java:83)
at java.lang.Thread.run(Thread.java:608)