How can i get caller object by MethodEntryEvent

Hi ,
I have problem that I want to get the caller object when the program call any method. I use com.sun.jdi.MethodEntryEvent to catch the calling event but I don't know how to get the caller.
thanks for any answers.

I use
com.sun.jdi.MethodEntryEvent to catch the calling
event but I don't know how to get the caller. You have to go from the MethodEntryEvent to the Thread
and from the Thread to the active stack frame on that
thread. Then you can query the stack frame for 'this',
or for other information.
Given:
com.sun.jdi.event.MethodEntryEvent mee;
then the following will return the ObjectReference
of 'this' for the current frame:
mee.thread().frame(0).thisObject();
References:
MethodEntryEvent:
http://java.sun.com/j2se/1.4.2/docs/guide/jpda/jdi/com/sun/jdi/event/MethodEntryEvent.html
LocatableEvent
http://java.sun.com/j2se/1.4.2/docs/guide/jpda/jdi/com/sun/jdi/event/LocatableEvent.html
ThreadReference:
http://java.sun.com/j2se/1.4.2/docs/guide/jpda/jdi/com/sun/jdi/ThreadReference.html
StackFrame:
http://java.sun.com/j2se/1.4.2/docs/guide/jpda/jdi/com/sun/jdi/StackFrame.html

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