NioDatagramAcceptor.unbind does not unbind cleanly
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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
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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