We have a tiny XPages app that gives us a few details like:

Current heap size
Max heap size
Free Memory in heap
Available Procesors

Seems like there may be other opportunities for displaying Java status information like these on the About Page.

My code was is simple:

runTime =  new java.lang.Runtime.getRuntime();

<br/>
heapSize = runTime.totalMemory(); &nbsp;</div>

heapMaxSize = runTime.maxMemory(); &nbsp;

heapFreeSize = runTime.freeMemory();&nbsp;

availProc = runTime.availableProcessors();