Java application window freezes

[Heitor Moreira]

After replacing Sun-JRE-6-26 by OpenJDK-6, I started to experiment a window freezing while I'm inputting information in a Java app.

The issue is that the entire window freezes and I can't do anything more into it. All the window's objects still perfect but completely locked, even if I resize the window the rendered components don't rearrange as they usually do.

The JVM doesn't seem to be locked since I'm able to connect to this JVM using visualvm and I can see some change in CPU and Memory.

The only way to close this JVM session is killing the referenced java process.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: openjdk-6-jre-headless 6b23~pre11-0ubuntu1.11.10
ProcVersionSignature: Ubuntu 3.0.0-14.23-generic 3.0.9
Uname: Linux 3.0.0-14-generic x86_64
ApportVersion: 1.23-0ubuntu4
Architecture: amd64
Date: Wed Dec 21 18:49:52 2011
ExecutablePath: /usr/lib/jvm/java-6-openjdk/jre/bin/java
InstallationMedia: Kubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427)
ProcEnviron:
 LANGUAGE=pt_BR:pt:en
 LANG=pt_BR.UTF-8
 SHELL=/bin/bash
SourcePackage: openjdk-6
UpgradeStatus: Upgraded to oneiric on 2011-10-13 (69 days ago)

[Heitor Moreira (heitormsilva)]

I think that this issue has something related to audio reproduction. Every time a registry has its input finished a sound is played and the freezes happens at the moment of an application sound effect should be played (actually in the second time a registry is finished because I manage to insert one registry without any problem).

After disabling the sound effects in the application preferences configuration the freezing seems to be gone.