Corrections to Chapter 17 of Java I/O, The Java Communications API

The output of the PortOpener program varies from PC to PC depending on what's installed and what else is running. It's also changed a little from the betas to the release version, even for the same configuration. Currently when I run it on my PC this is the output I get:

COM1, a serial port, is not currently owned.
COM2, a serial port, is currently owned by Port currently not owned.
LPT1, a parallel port, is not currently owned.
LPT2, a parallel port, is currently owned by Port currently not owned.

p. 509: In the third case of Example 17-5, "onwership" should be "ownership"

  public static void testProperties(CommPort thePort) {

    try {
      thePort.enableReceiveThreshold(10);
      System.out.println("Receive threshold supported");      
    }
    catch (UnsupportedCommOperationException e) {
      System.out.println("Receive threshold not supported");   
    }

    try {
      thePort.enableReceiveTimeout(10);
      System.out.println("Receive timeout supported");      
    }
    catch (UnsupportedCommOperationException e) {
      System.out.println("Receive timeout not supported");   
    }
    
    try {
      thePort.enableReceiveFraming(10);
      System.out.println("Receive framing supported");      
    }
    catch (UnsupportedCommOperationException e) {
      System.out.println("Receive framing not supported");   
    }
    
  } 

 com1.setFlowControlMode(SerialPort.FLOWCONTROL_RTSCTS_IN 
  | SerialPort.FLOWCONTROL_RTSCTS_OUT);