code: public static void staticSetSerialPortParams(String f, int b, int d, int s, int p) throws UnsupportedCommOperationException {
  
          logger.fine(
                  "RXTXPort:staticSetSerialPortParams( "
                  + f + " " + b + " " + d + " " + s + " " + p);
          nativeStaticSetSerialPortParams(f, b, d, s, p);
      }
docs: Extension to CommAPI This is an extension to CommAPI. It may not be
  supported on all operating systems.
  
  Set the SerialPort parameters 1.5 stop bits requires 5 databits
  
  @param f filename
  @param b baudrate
  @param d databits
  @param s stopbits
  @param p parity
  
  @throws UnsupportedCommOperationException on error
  @see gnu.io.UnsupportedCommOperationException