private void enlarge(final int size) {
		final int length1 = 2 * data.length;
		final int length2 = length + size;
		final byte[] newData = new byte[length1 > length2 ? length1 : length2];
		System.arraycopy(data, 0, newData, 0, length);
		data = newData;
	}
Enlarge this byte vector so that it can receive n more bytes.

@param size number of additional bytes that this byte vector should be able
            to receive.
src/main/java/com/alibaba/fastjson/asm/ByteVector.java