Using the Generate JVM Dump command

The Generate JVM Dump (GENJVMDMP) CL command can be used to generate Java™, system, and heap dumps.

The GENJVMDMP command generates Java Virtual Machine (JVM) dumps upon request. You can generate the following types of dumps:
Generates multiple files that contain diagnostic information for the JVM and the Java applications running within the JVM.
Generates a binary format raw memory image of the job that was running when the dump was initiated.
Generates a dump of all the heap space allocations which have not yet been freed.