it seems that you are running under 32 bit... The maximum amount of memory
that can be allocated under Windows 32-bit is roughly 1.4 - 1.5 GB (for
Java processes).
To get rid of the OOM during parsing the heapdump you should increase the
memory setting inside the eclipse.ini... In my installation eclipse 3.4.2
runs with
256 Mb... Try to replace the value of the -Xmx option with -Xmx1024m or a
higher value.