private Vector createInitialHosts(String l) {
private Vector createInitialHosts(String l) throws UnknownHostException {
    private Vector createInitialHosts(String l) {        Vector tmp=new Vector();        String host;        int port;        IpAddress addr;        StringTokenizer tok=new StringTokenizer(l, ",");        String t;        while(tok.hasMoreTokens()) {            try {                t=tok.nextToken();                host=t.substring(0, t.indexOf('['));                port=Integer.parseInt(t.substring(t.indexOf('[') + 1, t.indexOf(']')));                addr=new IpAddress(host, port);                tmp.addElement(addr);            }            catch(NumberFormatException e) {                if(log.isErrorEnabled()) log.error("exeption is " + e);            }        }        return tmp;    }