Ubuntu 12.04 Crash on Exit

[slmpika]

Jpcsp never exits cleanly. It always crashes when exiting. This wouldn't be much of a problem, except that it never saves my settings, so I have to go through the settings dialog every time I open the emulator. My terminal output is below:

#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0x00007f8e5014cc58, pid=15507, tid=140249351366400
#
# JRE version: 6.0_24-b24
# Java VM: OpenJDK 64-Bit Server VM (20.0-b12 mixed mode linux-amd64 compressed oops)
# Derivative: IcedTea6 1.11.4
# Distribution: Ubuntu 12.04 LTS, package 6b24-1.11.4-1ubuntu0.12.04.1
# Problematic frame:
# C [libX11.so.6+0x33c58] XQueryExtension+0x28
#
# An error report file with more information is saved as:
# /tmp/hs_err_pid15507.log
#
# If you would like to submit a bug report, please include
# instructions how to reproduce the bug and visit:
# https://bugs.launchpad.net/ubuntu/+source/openjdk-6/
#
Aborted (core dumped)

Specs:
Ubuntu 12.04
i5-2500k
Radeon HD 6870

The log is attached. Is there a fix for this? As a suggestion, I think it might be better if the settings were saved when the settings dialog is closed, rather than when the emulator exits.