The java heap is the area of memory used by instances of objects
The heap can be inspected
or a snapshot of the heap can be output to file
HPROF binary formatted heap dumps. Those heap dumps are written by Sun HotSpot and any VM derived from HotSpot. Depending on your scenario, your OS platform and your JDK version, you have different options to acquire a heap dump.
Portable Heap Dump (PHD) files are produced by IBM syste
eclipse MAT requires the DTFJ feature to analyse PHD dumps