code: @Override
  	public ServletInputStream getInputStream() {
  		byte[] data = content == null ? new byte[0] : content;
  
  		return new MockServletInputStream(new ByteArrayInputStream(data));
  	}
docs: Returns a stream to read the request content. If the content has not been set previously by
  {@link #setContent(byte[])}, an empty input stream is returned.
  
  @return the request input stream.