Pack and unpack IP address (InetAddress) to/from int

IPUtil.java

public static int pack(byte[] bytes) {
    int val = 0;
    for (byte oneByte : bytes) {
        val <<= 8;
        val |= oneByte & 0xff;
    }
    return val;
}

public static short[] unpack(int bytes) {
    return new short[] {
            (short)((bytes >>> 24) & 0xff),
            (short)((bytes >>> 16) & 0xff),
            (short)((bytes >>>  8) & 0xff),
            (short)((bytes       ) & 0xff)
    };
}