log.error(e);
System.err.println(e);
    public static void main(String[] args) {	char defaultChar = 'A';	int  default_mode=0; // receiver	int  MSG_SIZE=30000;	int  num_msgs=5;	long timeout=1000;	int  frag_size=8195;	for(int i=0; i < args.length; i++) {	    if("-help".equals(args[i])) {		usage();		return;	    }	    if("-sender".equals(args[i])) {		default_mode=1;		continue;	    }	    if("-size".equals(args[i])) {		MSG_SIZE=Integer.parseInt(args[++i]);		continue;	    }	    if("-num_msgs".equals(args[i])) {		num_msgs=Integer.parseInt(args[++i]);		continue;	    }	    if("-frag_size".equals(args[i])) {		frag_size=Integer.parseInt(args[++i]);		continue;	    }	    if("-timeout".equals(args[i])) {		timeout=Long.parseLong(args[++i]);		continue;	    }	    if("-char".equals(args[i])) {		defaultChar=args[++i].charAt(0);		continue;	    }	    usage();	    return;	}	try {	    new FragTestUnicast(defaultChar , default_mode, MSG_SIZE, num_msgs, timeout, frag_size).start();	}	catch(Exception e) {	    log.error(e);	}    }