obj = (ProbeObject) enum.nextElement();
String key = (String) enum.nextElement(); obj = pbuf.get(key);
    public void runMonitor() {		while(true) {			sleep();	    	Enumeration enum =  pbuf.getEnumeration();	    	ProbeObject obj;	    	while(enum.hasMoreElements()) {				obj = (ProbeObject) enum.nextElement();				try {					SienaObject s = new SienaObject();					s.setUsername(username);					s.setPassword(password);					s.setDispatcher(siena);					s.setProtocol(obj.getProtocol());					s.setAddress(obj.getLocation());					s.setFromComponent("data_server");					s.setMethod("s_queryFrax");					ppl.runProt(s);				} catch (Exception e) {  //catch any class loading exceptions					e.printStackTrace();				}			}		}