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[Vlad Adrian <398280@xxxxxxxxxxxxxxxxxx>]

Here's a somewhat recent crash report with latest netbeans version (7.0)
on xubuntu natty. Same stability problems, it crashes randomly and  very
often so i was forced to change to sun/oracle jdk.

** Attachment added: "Crash report Netbeans 7.0"
   https://bugs.launchpad.net/ubuntu/+source/openjdk-6/+bug/398280/+attachment/2120828/+files/hs_err_pid3258.log

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https://bugs.launchpad.net/bugs/398280

Title:
  experiencing frequent netbeans crashing

Status in “netbeans” package in Ubuntu:
  New
Status in “openjdk-6” package in Ubuntu:
  Confirmed

Bug description:
  The last 3 errors all look like this (pids being different of course).
  All mention nmethod.cpp line 1836, JavaThread "AWT-EventQueue-1", and
  libjvm.so.  I can't deliberately reproduce the error but if I run
  netbeans for long enough it will crash.

  #
  # A fatal error has been detected by the Java Runtime Environment:
  #
  #  Internal Error (nmethod.cpp:1836), pid=10665, tid=140316030511440
  #  Error: guarantee(cont_offset != 0,"unhandled implicit exception in compiled code")
  #
  # Java VM: OpenJDK 64-Bit Server VM (14.0-b08 mixed mode linux-amd64 )
  # Distribution: Ubuntu 9.04, package 6b14-1.4.1-0ubuntu10
  # 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/
  #

  ---------------  T H R E A D  ---------------

  Current thread (0x0000000000aaf000):  JavaThread "AWT-EventQueue-1"
  [_thread_in_Java, id=11553,
  stack(0x00007f9ddf07a000,0x00007f9ddf27b000)]

  Stack: [0x00007f9ddf07a000,0x00007f9ddf27b000],  sp=0x00007f9ddf277d60,  free space=2039k
  Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
  V  [libjvm.so+0x66e7ef]
  V  [libjvm.so+0x66eb51]
  V  [libjvm.so+0x2cdc26]
  V  [libjvm.so+0x52b006]
  V  [libjvm.so+0x5bb6e9]
  V  [libjvm.so+0x54f017]