JProfiler 5.2.2

Friends -

I am using JProfiler 5.2.2 (cpu profiling) to profile my web app to identify the most time-consuming methods.

I have a secific question around JProfiler call tree view:

In the call tree view in Jprofiler, can someone suggest what does head ‘direct calls to methods of filtered classes’ signify? We do not give any explicit filter during or after profiling, but still this head always comes in call tree with some %age – sometimes even upto 70%. (and is not even expandable to show details).

One thought was that it probably represents calls to core java.* classes, but they are already included in rest of the hierarchy. Also the available documentation doesn’t seem to throw light on this.

Example:
54.5% - 2,829 ms - 7 inv. direct calls to methods of filtered classes

Can someone please suggest?

THanks,
- Nitin