Test javax/swing/JPopupMenu/4966112/bug4966112.java fails for 6u

Test name(s): javax/swing/JPopupMenu/4966112/bug4966112.java
JDK tested: 6u95b09,6u91b13,7u80b07,8u45b05,9b43
OS tested:Linux
Is it a regression? No
Regression introduced in release/build: N/A
                           
Is it platform specific? No
                  
The is failure reproduced:Linux

----------System.out:(0/0)----------
----------System.err:(15/745)----------
java.lang.RuntimeException:
Popup was not shown on spinner
at bug4966112.main(bug4966112.java:175)
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:597)
at com.sun.javatest.regtest.MainWrapper$MainThread.run(MainWrapper.java:94)
at java.lang.Thread.run(Thread.java:682)

JavaTest Message: Test threw exception: java.lang.RuntimeException:
Popup was not shown on spinner
JavaTest Message: shutting down test

STATUS:Failed.`main' threw exception: java.lang.RuntimeException: Popup was not shown on spinner