code: public ActivityHandle getActivityHandle(Object arg0) {
  		if (tracer.isFineEnabled()) {
  			tracer.fine("getActivityHandle");
  	    }
  	    XCAPResourceAdaptorActivityHandle activityHandle = ((AsyncActivityImpl)arg0).getHandle();
  	    if (activities.containsKey(activityHandle)) {
  	    	return activityHandle;
  	    }
  	    else {
  	    	return null;
  	    }
  	}
docs: /*
  (non-Javadoc)
  @see javax.slee.resource.ResourceAdaptor#getActivityHandle(java.lang.Object)