// be ignored; see tryClose comment.
        if( socket == null ) {
            socket = new DatagramSocket( lport, laddr );
            thread = new Thread( this, "JCIFS-NameServiceClient" );
            thread.setDaemon( true );
            thread.start();
        }
    }
    void tryClose() {
        synchronized( LOCK ) {

        // be ignored; see tryClose comment.
        if ( this.socket == null ) {
            this.socket = new DatagramSocket(this.lport, this.laddr);
            this.thread = new Thread(this, "JCIFS-NameServiceClient");
            this.thread.setDaemon(true);
            this.thread.start();
        }
    }


    void tryClose () {
        synchronized ( this.LOCK ) {