Examples of java.nio.channels.DatagramChannel.disconnect()

java.nio.channels.DatagramChannel.disconnect()
Disconnect the socket of this channel, which is connected before for getting and sending datagrams.
This method can be called at any moment, and won't affect the processing read and write operation. It won't has any effect if the socket is not connected or the channel is closed.
@return This channel. @throws IOException Some other IO error occurred.

        } catch (IOException e) {
            return DefaultConnectFuture.newFailedFuture(e);
        } finally {
            if (!initialized && ch != null) {
                try {
                    ch.disconnect();
                    ch.close();
                } catch (IOException e) {
                    ExceptionMonitor.getInstance().exceptionCaught(e);
                }
            }

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        synchronized (this) {
            try {
                startupWorker();
            } catch (IOException e) {
                try {
                    ch.disconnect();
                    ch.close();
                } catch (IOException e2) {
                    ExceptionMonitor.getInstance().exceptionCaught(e2);
                }

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                break;
            else {
                SelectionKey key = session.getSelectionKey();
                DatagramChannel ch = (DatagramChannel) key.channel();
                try {
                    ch.disconnect();
                    ch.close();
                } catch (IOException e) {
                    ExceptionMonitor.getInstance().exceptionCaught(e);
                }

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                    req.notify();
                }


                if (ch != null && req.exception != null) {
                    try {
                        ch.disconnect();
                        ch.close();
                    } catch (Throwable e) {
                        ExceptionMonitor.getInstance().exceptionCaught(e);
                    }
                }

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                    SelectionKey key = ch.keyFor(selector);
                    request.registrationRequest = (RegistrationRequest) key
                            .attachment();
                    key.cancel();
                    selector.wakeup(); // wake up again to trigger thread death
                    ch.disconnect();
                    ch.close();
                }
            } catch (Throwable t) {
                ExceptionMonitor.getInstance().exceptionCaught(t);
            } finally {

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                else
                {
                    SelectionKey key = ch.keyFor( selector );
                    key.cancel();
                    selector.wakeup(); // wake up again to trigger thread death
                    ch.disconnect();
                    ch.close();
                }
            }
            catch( Throwable t )
            {

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        }
        finally
        {
            if( !initialized )
            {
                ch.disconnect();
                ch.close();
            }
        }


        RegistrationRequest request = new RegistrationRequest( ch, handler );

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            {
                SelectionKey key = session.getSelectionKey();
                DatagramChannel ch = ( DatagramChannel ) key.channel();
                try
                {
                    ch.disconnect();
                    ch.close();
                }
                catch( IOException e )
                {
                    exceptionMonitor.exceptionCaught( this, e );

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                if( ch != null && req.exception != null )
                {
                    try
                    {
                        ch.disconnect();
                        ch.close();
                    }
                    catch( Throwable e )
                    {
                        exceptionMonitor.exceptionCaught( this, e );

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                if( ch != null && req.exception != null )
                {
                    try
                    {
                        ch.disconnect();
                        ch.close();
                    }
                    catch( Throwable e )
                    {
                        ExceptionMonitor.getInstance().exceptionCaught( e );

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