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From Jason van Zyl <ja...@zenplex.com>
Subject Re: NullPointerException on server close
Date Fri, 21 Jun 2002 13:30:31 GMT
On Fri, 2002-06-21 at 07:31, Brian Dobby wrote:
> Hi, I'm just trying xmlrpc for the first time. I'm impressed with its
> ease of use, but I do have one problem with it; I always get a null
> pointer exception reported when the WebServer closes, and this doesn't
> look good in a production system. 
> 
> I create the WebServer like this:
>    myserver = new WebServer(m_apiPort);
>    myserver.addHandler("MyRPC", myClass);
>    myserver.start();
> 
> I stop it like this:
>    myserver.removeHandler("MyRPC");
>    myserver.shutdown();

Try just doing the myserver.shutdown() and don't remove the handlers.
I'm taking a peek now at what's going on.
 
> I get this at the console:
> Closing XML-RPC server socket.
> Exception in XML-RPC listener loop (java.net.SocketException: Socket
> closed).
> Closing XML-RPC server socket.
> Hit uncaught exception java.lang.NullPointerException
> java.lang.NullPointerException
> 	at org.apache.xmlrpc.WebServer.run(WebServer.java)
> 	at java.lang.Thread.run(Thread.java:484)
> 
> This happens whether or not I actually run a client. I'm running with
> JDK 1.3 under Windows 2000 Server. Does anyone know what I'm doing
> wrong?
> 
>    TIA
>       Brian
> 
-- 
jvz.

Jason van Zyl
jason@apache.org
http://tambora.zenplex.org

In short, man creates for himself a new religion of a rational
and technical order to justify his work and to be justified in it.
  
  -- Jacques Ellul, The Technological Society


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