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From "willem Jiang (JIRA)" <j...@apache.org>
Subject [jira] Created: (CXF-865) CXF http-jetty transport do not call the jetty server engine shutdown when the server stop
Date Tue, 31 Jul 2007 07:41:53 GMT
CXF http-jetty transport do not call the jetty server engine shutdown when the server stop
------------------------------------------------------------------------------------------

                 Key: CXF-865
                 URL: https://issues.apache.org/jira/browse/CXF-865
             Project: CXF
          Issue Type: Bug
          Components: Transports
    Affects Versions: 2.0
            Reporter: willem Jiang


It appears that stopping the server in CXF is not shutting down the Jetty engine, which causes
my application to hang because Jetty's threads are still blocking on the server socket accept.
After a shutdown, I still see Thread [btpool0-0 - Acceptor0 SelectChannelConnector@0.0.0.0:10001]
(Running).

I have a simple test application pasted below that can reproduce the problem. At this point
I had to add some calls to get the destination and cast it to a Jetty specific class to get
things to exit. Is there a better way to do this? Is there something I'm not configuring correctly?
Any help is appreciated.
 
This is under Java 1.5 with CXF 2.0. Jetty is being included from the CXF libs directory.

 
package org.mpilone.cxftest;
 
import java.io.IOException;
import org.apache.cxf.endpoint.Server;
import org.apache.cxf.frontend.ServerFactoryBean;
 
public class CxfJettyTest
{
  public void doIt()
  {
    System.out.println("Running test method");
  }
 
  public static void main(String[] args) throws IOException
  {
    // Create an Service and Server
    ServerFactoryBean serverFactory = new ServerFactoryBean();
    serverFactory.setServiceClass(CxfJettyTest.class);
    serverFactory.setServiceBean(new CxfJettyTest());
    serverFactory.setAddress("http://localhost:10001/RemoteApi");
    Server mServer = serverFactory.create();
 
    mServer.start();
    System.in.read();
    mServer.stop();
 
    // Adding these lines allows the application to exit, but
    // WARNING: EXCEPTION
    // java.nio.channels.ClosedChannelException
    // log statements are produced.
 
// JettyHTTPDestination jettyDest = (JettyHTTPDestination)
// mServer.getDestination();
// JettyHTTPServerEngine jettyEngine = (JettyHTTPServerEngine)
// jettyDest.getEngine();
// jettyEngine.shutdown();
 
    System.out.println("Exiting");
  }
}


If you looking into the code you will find there is a note in the JettyHTTPServerEngine's
removeServant(URL url)

            /* Bug in Jetty, we cannot do this.  If we restart later, data goes off
             * someplace unknown
            if (servantCount == 0) {
                try {
                   ....
            }*/

I just added the shutdown engine's code below the comments and tested it against the systest.
There were some  tests (such as ws.rm , mtom )failed.
It looks like if we shutdown the engine, when the engine start again , the engine can not
get the request info again , specially the http keep alive message.
Current I can't reproduce this bug by adding the unit test which simply calls start and shutdown
method the JettyHTTPServerEngine.
It may take some time to resolve this issue. 


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