eclipse crashed while editing file

[Jakob Wachtel]

Ubuntu release Ubuntu 10.04.4 LTS
openjdk packages:
$ apt-cache policy openjdk-6-jdk
openjdk-6-jdk:
  Installiert: 6b20-1.9.10-0ubuntu1~10.04.3
  Kandidat: 6b20-1.9.10-0ubuntu1~10.04.3
  Versions-Tabelle:
 *** 6b20-1.9.10-0ubuntu1~10.04.3 0
        500 http://ftp-stud.hs-esslingen.de/ubuntu/ lucid-updates/main Packages
        500 http://ftp-stud.hs-esslingen.de/ubuntu/ lucid-security/main Packages
        100 /var/lib/dpkg/status
     6b18-1.8-0ubuntu1 0
        500 http://ftp-stud.hs-esslingen.de/ubuntu/ lucid/main Packages
$ apt-cache policy openjdk-6-jre
openjdk-6-jre:
  Installiert: 6b20-1.9.10-0ubuntu1~10.04.3
  Kandidat: 6b20-1.9.10-0ubuntu1~10.04.3
  Versions-Tabelle:
 *** 6b20-1.9.10-0ubuntu1~10.04.3 0
        500 http://ftp-stud.hs-esslingen.de/ubuntu/ lucid-updates/main Packages
        500 http://ftp-stud.hs-esslingen.de/ubuntu/ lucid-security/main Packages
        100 /var/lib/dpkg/status
     6b18-1.8-0ubuntu1 0
        500 http://ftp-stud.hs-esslingen.de/ubuntu/ lucid/main Packages

I was using eclipse galileo, using cdt c/c++ perspective. My eclipse configuration is attached:

And the error:

# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0xb5ca8ffe, pid=5706, tid=3079210688
#
# JRE version: 6.0_20-b20
# Java VM: OpenJDK Client VM (19.0-b09 mixed mode, sharing linux-x86 )
# Derivative: IcedTea6 1.9.10
# Distribution: Ubuntu 10.04.1 LTS, package 6b20-1.9.10-0ubuntu1~10.04.3
# Problematic frame:
# J org.eclipse.cdt.internal.core.model.Include.equals(Ljava/lang/Object;)Z
#
# An error report file with more information is saved as:
# /home/jwachtel/hs_err_pid5706.log
#
# If you would like to submit a bug report, please include
# instructions how to reproduce the bug and visit:
# https://bugs.launchpad.net/ubuntu/+source/openjdk-6/

The error occured doing normal file editing so I don't know how to reproduce the bug, unfortunately.