public ByteVector putByte(final int byteValue) {
        int currentLength = length;
        if (currentLength + 1 > data.length) {
            enlarge(1);
        }
        data[currentLength++] = (byte) byteValue;
        length = currentLength;
        return this;
    }
Puts a byte into this byte vector. The byte vector is automatically enlarged if necessary.

@param byteValue a byte.
@return this byte vector.
core/src/main/java/com/alibaba/fastjson2/internal/asm/ByteVector.java