code: @Override
      public boolean setUARTType(String type, boolean test)
              throws UnsupportedCommOperationException {
  
          logger.fine("RXTXPort:setUARTType()");
          return nativeSetUartType(type, test);
      }
docs: Extension to CommAPI This is an extension to CommAPI. It may not be
  supported on all operating systems.
  
  @param type String representation of the UART type which mayb be "none",
  "8250", "16450", "16550", "16550A", "16650", "16550V2" or "16750".
  @param test boolean flag to determin if the UART should be tested.
  @return boolean true on success
  @throws UnsupportedCommOperationException on error