package com.ninty.utils;

/**
 * Created by ninty on 2017/7/8.
 */
public class VMUtils {

    public static boolean isEmpty(String str){
        return str == null || str.trim().equals("");
    }
}

@@ -189,11 +189,83 @@
 );%0A    %7D
+%0A%0A    public static int toUInt(byte val)%7B%0A        return val&0xff;%0A    %7D
 %0A%7D%0A

convert byte to unsign int