VisualVM - Invalid Kernel Dump

Question

I have a .hprof dump heap created from JVM OutOfMemory (JDK version 1.5).

When I try to add this file to VisualVM, it tells me that the file is not a valid core dump.

However, I can run jhat for this dump file without any problems.

any ideas why?

Answer 1

A heap dump is not a core dump. So you should open your .hprof file as a bunch of dump in VisualVM.

Answer 2

The file you are trying to open is Dump Head, not Core Dump.

Follow these steps:

• Go to File > Download ...
• Select file format: Heap dumps (* .hprof, *. *)
• Select a file and click "Open."