code: public void addUnsignedByte( short value ) {
          if ( 1 + length < capacity ) {
              DynamicByteBufferHelper.unsignedByteTo( buffer, length, value );
          } else {
              buffer = DynamicByteBufferHelper.grow( buffer, buffer.length * 2 + 1 );
              capacity = buffer.length;
  
              DynamicByteBufferHelper.unsignedByteTo( buffer, length, value );
          }
  
          length += 1;
  
      }
docs: Adds the unsigned byte.
  
  @param value the value