X-1.0rc3: RedHat Linux: (r905) IDE crashes randomly

[secwineman]

Hello,
when I'm using Sikuli IDE it crashes randomly. It could crash if I save the file, if I click on an image, if I close the application, if I take a screenshot ...
I'm running on Red Hat Enterprise Linux 6.1 x64.

I have 2 versions of java on my system :
- Jdk 1.7.0_03 x64 (Default)
- jre-6u38-linux-x64

I have an application which absolutely needs Java 7, that's why I have 2 versions.
In order to use Java 6 with Sikuli IDE, I've changed the sikuli-ide.sh script this way :

(Line 4) : LC_NUMERIC=C /usr/java/jre1.6.0_38/bin/java -Dsikuli.console=true -Dsikuli.debug=0 -Xms64M -Xmx512M -Dfile.encoding=UTF-8 -jar $DIR/sikuli-ide.jar $*

I attached the java crash report. Please let me know if you need more information.