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[Bug 432677] Re: Java JComboBox callback freezes Xorg

 

** Package changed: xorg-server (Ubuntu) => openjdk-6 (Ubuntu)

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Java JComboBox callback freezes Xorg
https://bugs.launchpad.net/bugs/432677
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Status in “openjdk-6” package in Ubuntu: Confirmed

Bug description:
My machine is a desktop with an Intel Core 2 Quad, 2Gb and a video board Intel(R) 965G.
I am using Ubuntu 9.04 32 bits, Eclipse 3.5 (Galileo), Sun Java 1.6.0_16 provided by sun-java6-* packages.

Steps to reproduce (please read it until the end before trying):
 * Create a Java project in Eclipse.
 * Add the attached XLock Java class in this project
 * Put a breakpoint in the method actionPerformed()
 * Run this class (note that it has a method main()) in debug mode
 * A tiny window will appear
 * Select another animal in the combo box
 * Eclipse should stop in the breakpoint
 * All your Xorg is locked now. You can move your mouse, but nothing responds any more
 * To unlock it press CONTROL+ALT+F1, login to the terminal and kill the latest Java process
 * Everything gets back to normal

I don't know exactly where the problem is, but Xorg should never lock because of a problem in an application.