Why don't I see any of my application's classes in Mission Control?

Question

Hi Forum,
My system: JRockit JVM version R28.0.0-679-130297-1.6.0_17-20100312-2123-windows-ia32, Oracle® JRockit Mission Control 4.0.0 (M4.0.0-20, 130319); JAX-WS annotated Web Services; EJB 3.0 annotated SLSBs;
When either analyzing the live remote WLS/OSB server through JRMC's management console, or viewing a previously-dumped jfr file in JRMC, how come I don't see any of my application's classes in any of the various traces (memory, gc, events, etc.)?
The application's architecture is basically:
                         OSB
     (proxies, xquery transformations, biz svcs)
                          |
                         WLS
           (jms, jax-ws, ejb, jdbc, jaxb)                         I've created and viewed a couple dozen jfr recordings. I've patiently trawled the management console traces. But I've yet to see any of my application's classes; nor any of the classes from the apis I've listed in my "WLS" layer above (jms, jax-ws, ejb, jdbc, jaxb).
All I ever see in JRMC's management console or in my flight recordings are either classes at the OSB infrastructure-related, or WLS container-related classes. Plus, of course, the usual JDK classes.
Based on the "Shows classes that take up more than 0.5% of the heap..." label I've seen displayed on the "Object Statistics/Heap Contents" tab, I've been assuming that my applications classes (plus those other api classes above) just don't take up more than half a percent of the heap. Is that right? If so, then that's "a good thing"! Right?
If I've assumed incorrectly, please can anybody fill me in on where to look, or how to see more application-related classes?
Thanks in advance for your help.

Answer 1

Hi,
That sounds really strange, I can't imagine how some classes could be filtered out. There is no filtering mechanism built into the JVM, the Management Console or Flight Recorder.
Are you 100.00% sure you are connected to the right JVM and that your application has loaded correctly?
I've been assuming that my applications classes (plus those other api classes above) just don't take up more than half a percent of the heap. Is that right? If so, then that's "a good thing"! Right?
There is a cut off around 0.5%, if it's good or bad thing depends on what your application is supposed to do :)
If you want to see all classes with the exact count you can use the Memory Leak Detector, but you have to go to Window -> Preferences-> JRockit Mission Control->Memory Leak Detector->Trend and set the instance count threshold to zero.
Best regards
Erik