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From "Emmanuel Lecharny (JIRA)" <j...@apache.org>
Subject [jira] Updated: (DIRMINA-804) NioDatagramAcceptor.unbind does not unbind cleanly
Date Mon, 29 Nov 2010 23:05:11 GMT

     [ https://issues.apache.org/jira/browse/DIRMINA-804?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Emmanuel Lecharny updated DIRMINA-804:
--------------------------------------

    Fix Version/s: 2.0.3

To be investigated

> NioDatagramAcceptor.unbind does not unbind cleanly
> --------------------------------------------------
>
>                 Key: DIRMINA-804
>                 URL: https://issues.apache.org/jira/browse/DIRMINA-804
>             Project: MINA
>          Issue Type: Bug
>          Components: Transport
>    Affects Versions: 2.0.0
>         Environment: Windows 7
>            Reporter: Zhou
>             Fix For: 2.0.3
>
>
> Steps to reproduce:
> 1.  Use below code.
> NioDatagramAcceptor acceptor = new NioDatagramAcceptor();
> acceptor.setHandler(new IoHandlerAdapter());
> SocketAddress localAddress = new InetSocketAddress("localhost",9001);
> acceptor.bind(localAddress);
> acceptor.unbind(localAddress);
> 2. use debugger to step over here after unbind() call but before exiting the process
> 3. use netstat to check current UDP sockets. you can find port 9001 not released yet.
> Possible solution: invoke selector.selectNow() after closing the channel.
>  @Override
>     protected void close(DatagramChannel handle) throws Exception {
>         SelectionKey key = handle.keyFor(selector);
>         if (key != null) {
>             key.cancel();
>         }
>         
>         handle.disconnect();
>         handle.close();
>         selector.selectNow();
>     }

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