It looks like you are attempting to use the serial ports from java.
Which java serial IO library are you using? What serial device are you
using? You need to provide alot more info than this if you expect
people to help...
On Wed, 19 Jan 2005 13:41:34 -0800 (PST), mohamed rafi
<email@hidden> wrote:
> Hi,
>
> I have connected a Serial Device to my Mac's USB Port,
> and its getting recognized (Could see the entries in
> /dev/ folder).
>
> However, when I try to open the port by doing a
>
> serialPort = (SerialPort) portId.open("TestApp",
> 2000);
> (portId is a CommPortIdentifier object)
>
> I am getting a PortInUseException. Following is the
> stacktrace of the error:
>
> javax.comm.PortInUseException: Could not open
> usbserial-3B13
> usbserial-3B13: SerOpenPort failed: : 16
> at
> javax.comm.CommPortIdentifier.open(CommPortIdentifier.java:180)
> at
> ScannerFunctionality.main(ScannerFunctionality.java:47)
> Exception in thread "main"
> java.lang.NullPointerException
> at
> ScannerFunctionality.main(ScannerFunctionality.java:56)
>
> Also, I tried to get the port owner, by doing a
> PortInUseException.currentOwner, and this gives as
> 'Unknown'.
>
> Any idea of what could be causing this error, and how
> to avoid this issue ?
>
> Thanks,
> Rafi SM
>
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