application freezes while debugging OSX Drop action on NSOutlineview
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I'm having difficulty finding out what is wrong with my application.

When I call the method below, it works fine. (although does nothing)

    -(BOOL)outlineView:(NSOutlineView *)outlineView acceptDrop:(id<NSDraggingInfo>)info item:(id)item childIndex:(NSInteger)index{
     int d = 6; //just an assignment to make the breakpoint hitch on
     return YES;
    }

When I put a breakpoint in place, the system hangs when I theoretically enter this method. Application not responding on the target, and XCode I can't bring to the forefront.

How can I debug this?

Tx