closed/javax/swing/JPopupMenu/6580930/bug6580930.java fails on Linux

Bug Info
=========
closed/javax/swing/JPopupMenu/6580930/bug6580930.java fails on Linux with the following exception.

java.lang.RuntimeException: HeavyWeightPopup is unexpectedly hidden
at bug6580930.main(bug6580930.java:87)
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:623)
at com.sun.javatest.regtest.MainWrapper$MainThread.run(MainWrapper.java:82)
at java.lang.Thread.run(Thread.java:717)

JDK Info
=========
java version "1.7.0-internal"
Java(TM) SE Runtime Environment (build 1.7.0-internal-administrator_2009_06_01_0
1_18-b00)
Java HotSpot(TM) Client VM (build 16.0-b03, mixed mode, sharing)

Steps to reproduce
===================
Set the following envrionment and run the test.

1. Set JTREG PATH
2. Set JDK HOME
3. Set WORK DIR and REPORT DIR
4. Set the SUITE(ex: SUITE=/net/sqindia.india/export/disk01/vinay/src/jdk/test/closed/javax/swing/JPopupMenu/6580930/bug6580930.java)
5. Run the following command once set the above environment.

ksh ${JTREG_PATH}/bin/jtreg -v -jdk:${JDK_HOME} -r:${REPORT_DIR} -w:${WORK_DIR} ${SUITE}

Please find the attached test log file more details.