initial_mbrs.notify();
initial_mbrs.notifyAll();
    public boolean handleUpEvent(Event evt) {        Vector tmp;        switch(evt.getType()) {            case Event.FIND_INITIAL_MBRS_OK:                tmp=(Vector)evt.getArg();                synchronized(initial_mbrs) {                    if(tmp != null && tmp.size() > 0)                        for(int i=0; i < tmp.size(); i++)                            initial_mbrs.addElement(tmp.elementAt(i));                    initial_mbrs_received=true;                    initial_mbrs.notify();                }                return false;  // don't pass up the stack        }        return true;    }