code: public final ReturnValue sendCommand(final String sCommandName, final String... arguments) throws JNRPEClientException {
          return sendRequest(new JNRPERequest(sCommandName, arguments));
      }
docs: Inovoke a command installed in JNRPE.
  
  @param sCommandName
  The name of the command to be invoked
  @param arguments
  The arguments to pass to the command (will substitute the
  $ARGSx$ parameters)
  @return The value returned by the server
  @throws JNRPEClientException
  Thrown on any communication error.