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luseng

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java.net.SocketException: Unrecognized Windows Sockets error: 10106

hi,
i open a socket in my program. when i execute this program from another program (by using Runtime.getRuntime().exec()), the problem occurs. the program i tried to open a socket gives the following exception :
java.net.SocketException: Unrecognized Windows Sockets error: 10106: create

what can be the reason? if i execute the program by itself, there is no problem..
thanks..
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CEHJ
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Why use runtime exec btw? Why not

OtherClass.main(stringArray);

?
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CEHJ
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Or maybe it's not a Java program?
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luseng

ASKER

 i exec 4 different programs in this program..   all of them includes Threads, System.exit(0), etc.. if i execute them by calling main, it seems to me that there can be some problems..
   
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luseng

ASKER

they are java programs..

 for example  : Runtime.getRuntime().exec("a.jar")
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CEHJ
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>>for example  : Runtime.getRuntime().exec("a.jar")

That particular example, if accurate, makes no sense. Can you give the actual commands?
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CEHJ
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>>makes no sense

I know you can 'execute' a jar by double-clicking it, but that's only on account of Windows shell integration. The command should really be

Runtime.getRuntime().exec("java -jar a.jar")

(if an executable jar)
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CEHJ
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>>it seems to me that there can be some problems..

What problems? You're going to have a much better chance of remaining problem-free doing things this way than using Runtime.exec
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luseng

ASKER

   I use the following commands :  

    String javaexec = System.getProperty("java.home") + File.separator +
                          "bin" + File.separator + "java";

     String cmd =  "\"" +javaexec + "\" -jar " + "a.jar";
            
    Runtime.getRuntime().exec(cmd , env, file);
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CEHJ
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luseng

ASKER

 ok...
  what about using Runtime.getRuntime().exec? what can be the reason of exception? i am  wondering that..
  thanks..
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CEHJ
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Have you missed my point - i'm saying to *not* use Runtime?
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luseng

ASKER

 sorry, i missed it.  
  why not?
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CEHJ
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Because it's introducing a layer of complexity you don't need, that can lead to problems
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luseng

ASKER

ok, thanks..
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luseng

ASKER

 do i need to call main class of a.jar?
 
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CEHJ
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>> do i need to call main class of a.jar?

Yes. If you want to try an interim 'quicker fix' pass all commands to Runtime.exec as a String[], not a String
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Mick Barry
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try running:

cmd /c java -jar a.jar