VisualVM - not a valid core dump

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

When I try to add this file in VisualVM, it tells me fil开发者_如何学Goe is not a valid core dump.

However from I'm able to run jhat for this dump file without any issue.

any ideas why ?

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

Follow this steps:

1. Go to File > Load...
2. Select the File Format: as Heap Dumps (*.hprof, *.*)
3. Choose your file and click on Open.

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Heap dump is not a core dump. So you have to open your .hprof file as a heap dump in VisualVM.