In Eclipse MAT's OQL: how to construct a date from a long integer?
<p>I'm doing some investigation in a core dump via Eclipse MAT. 
I've got some OQL that gets me pretty close to the information I want about web client sessions that haven't been collected (and are holding onto a LOT of memory).</p>

<p>The session data has a date, in long integer format. </p>

<p>This is a small thing (or should be) but I've not figured out how to convert that long integer into a meaningful date object inside the OQL, but doing so would help me filter the harmless live sessions from the potential leaks.</p>

<p>So, what is the trick for converting long to date or timestamp in MAT's OQL?  </p>