code: public void handleApiPersistentConnection(HttpMessage msg,
  			HttpInputStream httpIn, HttpOutputStream httpOut, String name,
  			JSONObject params) throws ApiException {
  		throw new ApiException(ApiException.Type.BAD_PCONN, name);
  	}
docs: Override if implementing one or more 'persistent connection' operations.
  These are operations that maintain long running connections, potentially staying alive
  as long as the client holds them open.
  @param msg the HTTP message containing the API request
  @param httpIn the input stream
  @param httpOut the output stream
  @param name the name of the requested pconn endpoint
  @param params the API request parameters
  @throws ApiException if an error occurred while handling the API pconn endpoint