Question on HAT (Heap Analysis Tool) - Sun's jhat

[Gurumurthy Ramamurthy]

Guys,

I know starting jdk1.6, sun bundled hat tool with the name jhat.

I have seen the HAT tool and started working on this also. Is it compatibile with JREs like IBM JRE and BEA JROCKIT JRE? I mean that using different JREs (IBM JRE, JROCKIT JRE, SUN JRE), I take dumps using the JVM option -Xrunhprof:file=dump.hprof, format=b.

Is this generated dump will be opened using Sun JRE? Because I found no/little answer in the website.

Thanks for your answers,
Guru