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Message #10955
[Bug 432677] Re: Java JComboBox callback freezes Xorg
Additional Information: Interestingly, it only happens when using System
LookAndFeel. Using standard Java Look and Feel, nothing crashes,
everything works as expected. Both in normal runtime mode as well as
during debugging.
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https://bugs.launchpad.net/bugs/432677
Title:
Java JComboBox callback freezes Xorg
Status in Sun Java SE Development Kit:
New
Status in openjdk-6 package in Ubuntu:
Triaged
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.
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