Public bug reported:
As a NetBeans IDE developer, I am frequently launching the IDE (a Swing-
based Java application) in one or more copies. From time to time when
opening the IDE main window (i.e. a javax.swing.JFrame) while running
Unity 2D, unity-2d-panel suddenly crashes, leaving a blank space
(showing the screen background) where the panel normally is. The window
manager continues to work, so I can switch between apps using Alt-TAB,
but the panel and all its applets are gone.
Running 'killall -HUP unity-2d-panel' restores the panel in this case,
meaning I guess that the process was still alive but somehow not
responding.
I have not yet managed to pinpoint the exact conditions under which this
bug happens. Generally it is when I already have one copy of NetBeans
running and then run a second (testing) copy, though this does not
reliably trigger the bug by any means. I use (Oracle) JDK 6u31 and 7u3,
both in the 32-bit version.
Will attach a redacted copy of my ~/.xsession-errors from the current
session. You can see several instances of "WARNING: Application 'unity-
2d-panel.desktop' killed by signal" - any immediately preceding messages
might be related to the crash.
ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: unity-2d-panel 4.12.0-0ubuntu1.1
ProcVersionSignature: Ubuntu 3.0.0-16.28-generic 3.0.17
Uname: Linux 3.0.0-16-generic x86_64
ApportVersion: 1.23-0ubuntu4
Architecture: amd64
Date: Thu Mar 1 08:40:49 2012
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
ProcEnviron:
PATH=(custom, user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: unity-2d
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: unity-2d (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug java netbeans oneiric running-unity
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https://bugs.launchpad.net/bugs/944007
Title:
unity-2d-panel crashes occasionally after launching NetBeans
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