code: @Override
  	public void write(byte[] b, int off, int len) {
  		this.checkIncreaseArray(len);
  		System.arraycopy(b, off, this.buffer, this.pos, len);
  		this.pos += len;
  	}
docs: Writes a byte array content into the stream
  
  @param b
  @param off
  @param len