code: public Map readHeaders(Hessian2Input hessian2Input) throws IOException {
  		Map headers = new HashMap();
  		String header = hessian2Input.readHeader();
  		while (header != null) {
  			headers.put(header, hessian2Input.readObject());
  			header = hessian2Input.readHeader();
  		}
  		return headers;
  	}
docs: Reads headers from call.
  
  @param hessian2Input -
  HessianInput
  @return Map of headers
  @throws java.io.IOException
  If error occurs