Compare Arrays
class Utils { /** * * @param first * @param second * @return -1 on success, -2 if length differs, otherwise the index that failed */ public static int compareArrays(byte[] first, byte[] second) { if(first.length != second.length) return -2; for (int i = 0; i < first.length; i++) { if(first[i] != second[i]) return i; } return -1; } }