java runs continious at 100% when opening a webpage with a java applet

[André Düwel]

Binary package hint: firefox

Opening a website in Firefox which starts a java applet causes the java process to run continuous at 100% CPU.

cut from top:
   PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
12784 raynor 20 0 1562m 214m 12m S 101 5.4 5:52.09 /usr/lib/jvm/java-6-openjdk/jre/lib/amd64/../../bin/java sun.applet.PluginMain /tmp/icedteaplugin-raynor/12514-icedteanp-plugin-to-appletviewer /tmp/icedteaplugin-raynor/12514...

The process will terminate if all Firefox instances are closed.

lsb_release -rd:
Description: Ubuntu 10.04 LTS
Release: 10.04

apt-cache policy firefox
firefox:
  Installed: 3.6.3+nobinonly-0ubuntu4
  Candidate: 3.6.3+nobinonly-0ubuntu4
  Version table:
 *** 3.6.3+nobinonly-0ubuntu4 0
        500 http://de.archive.ubuntu.com/ubuntu/ lucid/main Packages
        100 /var/lib/dpkg/status

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: firefox 3.6.3+nobinonly-0ubuntu4
ProcVersionSignature: Ubuntu 2.6.32-21.32-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-21-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
Date: Tue Apr 27 13:27:38 2010
FirefoxPackages:
 firefox 3.6.3+nobinonly-0ubuntu4
 firefox-gnome-support 3.6.3+nobinonly-0ubuntu4
 firefox-branding 3.6.3+nobinonly-0ubuntu4
 abroswer N/A
 abrowser-branding N/A
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Beta amd64 (20100318)
ProcEnviron:
 LANGUAGE=en
 LANG=en_US.utf8
 SHELL=/bin/bash
SourcePackage: firefox

[bedfojo (bedfojo)]

Confirmed. I have the same problem.

Killing the java process stops the 100% CPU usage.

[bedfojo (bedfojo)]

Further investigation - it is the icedtea6-plugin which causes the problem.

As a workaround, remove it and replace with the sun-java6-plugin, which solves the problem.