Once every few days the JVM running Tomcat dies with the following
error in the log.  

This bug is to track progress on determining what is causing this
fatal error.

INFO: Server startup in 5917 ms
#
# HotSpot Virtual Machine Error, Internal Error
# Please report this error at
# http://java.sun.com/cgi-bin/bugreport.cgi
#
# Java VM: Java HotSpot(TM) Client VM (1.4.2_04-b05 mixed mode)
#
# Error ID: 43113F32554E54494D45110E4350500308
#
# Problematic Thread: prio=1 tid=0x0856fef0 nid=0x7f63 runnable 
#

Heap at VM Abort:
Heap
 def new generation   total 1664K, used 1622K [0x44870000, 0x44a30000,
0x44d50000)
  eden space 1536K,  99% used [0x44870000, 0x449effd8, 0x449f0000)
  from space 128K,  67% used [0x44a10000, 0x44a25a50, 0x44a30000)
  to   space 128K,   0% used [0x449f0000, 0x449f0000, 0x44a10000)
 tenured generation   total 20756K, used 16288K [0x44d50000,
0x46195000, 0x48870000)
   the space 20756K,  78% used [0x44d50000, 0x45d381a8, 0x45d38200,
0x46195000)
 compacting perm gen  total 14592K, used 14395K [0x48870000,
0x496b0000, 0x4c870000)
   the space 14592K,  98% used [0x48870000, 0x4967ed68, 0x4967ee00,
0x496b0000)