JDK              : JDK 6u12b02 b02_j4b
Platforms[s]     : x64-RHEL5.2-jvm64 , solaris 9 sun4u
testbase         : /net/vice.russia.sun.com/export/home0/dtf/dtf_ws/suites/6.0/awt

Differen tests fails on RHEL 5.2 and solaris9 sun4u. 

More offen fails this test:
result:
/net/stt-13/export/stt/gtee/global/1.6.0_12/b02/awt/01/awt_stt_suites_rhel52-amd64/run1/stt-robot.Linux.amd64/DefaultTraversalKeyTest.html
src:
/set/stt/dtf/dtf_ws/suites/suites/6.0/awt/src/AWT_Focus/Automated/Swing/DefaultTraversalKeyTest

jstack results:

/net/stt-13/export/stt/gtee/global/1.6.0_12/b02/awt/01/awt_stt_suites_rhel52-amd64/run1/stt-robot.Linux.amd64/DefaultTraversalKeyTest.html/jstack

cat jstack
.............
	at javax.swing.JComponent.removeNotify(JComponent.java:4699)
	at javax.swing.text.JTextComponent.removeNotify(JTextComponent.java:1623)
	at java.awt.Container.removeNotify(Container.java:2604)
	- locked <0x00002aaab00a25b0> (a java.awt.Component$AWTTreeLock)
	at javax.swing.JComponent.removeNotify(JComponent.java:4699)
	at java.awt.Container.removeNotify(Container.java:2604)
	- locked <0x00002aaab00a25b0> (a java.awt.Component$AWTTreeLock)
	at javax.swing.JComponent.removeNotify(JComponent.java:4699)
	at java.awt.Container.removeNotify(Container.java:2604)
	- locked <0x00002aaab00a25b0> (a java.awt.Component$AWTTreeLock)
	at javax.swing.JComponent.removeNotify(JComponent.java:4699)
	at java.awt.Container.removeNotify(Container.java:2604)
	- locked <0x00002aaab00a25b0> (a java.awt.Component$AWTTreeLock)
	at javax.swing.JComponent.removeNotify(JComponent.java:4699)
	at javax.swing.JRootPane.removeNotify(JRootPane.java:750)
	at java.awt.Container.removeNotify(Container.java:2604)
	- locked <0x00002aaab00a25b0> (a java.awt.Component$AWTTreeLock)
	at java.awt.Window.removeNotify(Window.java:685)
	- locked <0x00002aaab00a25b0> (a java.awt.Component$AWTTreeLock)
	at java.awt.Frame.removeNotify(Frame.java:886)
	- locked <0x00002aaab00a25b0> (a java.awt.Component$AWTTreeLock)
	at java.awt.Window$1DisposeAction.run(Window.java:1013)
	at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:199)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:597)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)

Found 1 deadlock.