Re: [ajug-members]: caught java.lang.nullpointerexception: name can'tbe null while loading driver com.sun.comm.win32driver

[Jason Chambers <tooger@bellsouth.net>]

I'd be very surprised if the security model of an applet would permit 
opening a serial port (although I could be wrong).  Wouldn't it need to 
be a signed applet?

Jason

Phelix wrote:

> Hi, all
>  
> I am writting an applet to open the serial port using javax.comm api. 
> The applet is on the same machine of the serail port. I use 
> appletviewer to run my applet. I keep getting this error:
>  
> caught java.lang.nullpointerexception: name can't be null while 
> loading driver com.sun.comm.win32driver
>  
> Seached on the web, but still could not get any progress. Somebody 
> said this error is due to a "Comm API" / "JDK1.2 Security Model" 
> mismatch. Is there any way to work around it?
>  
>  
> String drivername = "com.sun.comm.Win32Driver";
> try {
> CommDriver driver = (CommDriver) Class.forName(drivername).newInstance();
> driver.initialize();  //error occured
> } catch (myException e) {
>  
> }
>
> Thanks a lot
> Phelix
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