* <p> This handler filters out all the system apps from the list of objName available
* through the event object, based on the object-type attribute.
*/
@Handler( id="filterSystemApps")
public static Object filterSystemApps(HandlerContext context) {
FilterTreeEvent event = (FilterTreeEvent) context.getEventObject();
Object[] obj = event.getChildObjects();
ArrayList result = new ArrayList();
if(obj != null && obj.length > 0){
for (int i=0; i<obj.length; i++){
ObjectName objName = (ObjectName)obj[i];