public static void writeInt32LE(final int value, final byte[] buffer, int offset)
    {
        buffer[offset++] = (byte) ((value >>> 0) & 0xFF);
        buffer[offset++] = (byte) ((value >>> 8) & 0xFF);
        buffer[offset++] = (byte) ((value >>> 16) & 0xFF);
        buffer[offset] = (byte) ((value >>> 24) & 0xFF);
    }
Writes the 32-bit int into the buffer starting with the least significant byte.
protostuff-api/src/main/java/io/protostuff/IntSerializer.java