About heap dump for weblogic JRockit, the heap usage was fully eat up, but the heap dump size is small -

in weblogic jrockit, heap gets full (usage reaches heap max size 4096m). however, after dump heap, dump file size 200~ 300m. strange, , on top of can not identify objects occupy heap through ema tool.

has experienced similar , know jrockit heap dump mechanism?

whenever take heap dump full gc run , heap dumped. may that's reason heap dump size small.

if want analyze memory leak between full gcs, probably memory profilingusing java profiler (mission control, jprofiler, etc) option.