public int stcmp(StackTraceElement a, StackTraceElement b) {
	    int sc = equals(a.getFileName(), b.getFileName());
	    if(sc != 0)
		return(sc);
	    
	    sc = equals(a.getClassName(), b.getClassName());
	    if(sc != 0)
		return(sc);
	    
	    sc = equals(a.getMethodName(), b.getMethodName());
	    if(sc != 0)
		return(sc);
	    
	    if(a.getLineNumber() != b.getLineNumber())
		return(a.getLineNumber() - b.getLineNumber());
	    return(0);
	}