For CORBA calls, the Java agent will only identify class names starting with “_sk_” or “_st_” as CORBA classes. For classes that don't match that naming convention, custom CorbaTracing identifiers will need to be added.
For classes whose names that don't match that convention, you need to add a line similar to the following to a custom pbd, for each class that should be identified:
IdentifyClassAs: a.b.c_QueryStub CorbaTracing
for a broader match, you can use syntax such as
IdentifyMatchingClassesAs: "a.b.c._*Stub" CorbaTracing