Eclipse 3.7 doesn't close correctly with opened VPE sometimes

When close eclipse 3.7 with opened VPE error occurs.
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1. A fatal error has been detected by the Java Runtime Environment:
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2. SIGSEGV (0xb) at pc=0xb78573bd, pid=17777, tid=1507662704
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3. JRE version: 6.0_23-b05
4. Java VM: Java HotSpot(TM) Server VM (19.0-b09 mixed mode linux-x86 )
5. Problematic frame:
6. C [libpthread.so.0+0x83bd] __pthread_mutex_lock+0x1d
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7. An error report file with more information is saved as:
8. /home/mareshkau/Projects/jboss/trunk/vpe/tests/org.jboss.tools.vpe.ui.test/hs_err_pid17777.log
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9. If you would like to submit a bug report, please visit:
10. http://java.sun.com/webapps/bugreport/crash.jsp
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