Java Code Examples for org.apache.qpid.proton.engine.Sender#open()

@Override
public void onConnectionInit(Event event) {
    Connection conn = event.getConnection();

    // Every session or link could have their own handler(s) if we
    // wanted simply by adding the handler to the given session
    // or link
    Session ssn = conn.session();

    // If a link doesn't have an event handler, the events go to
    // its parent session. If the session doesn't have a handler
    // the events go to its parent connection. If the connection
    // doesn't have a handler, the events go to the reactor.
    Sender snd = ssn.sender("sender");
    conn.open();
    ssn.open();
    snd.open();
}
 

@Override
public void onConnectionInit(Event event) {
    Connection conn = event.getConnection();
    Session ssn = conn.session();
    Sender snd = ssn.sender("sender");
    conn.open();
    ssn.open();
    snd.open();
}
 

@Test
public void testSenderSendBeforeOpenConnection()
{
    MockTransportImpl transport = new MockTransportImpl();

    Connection connection = Proton.connection();
    transport.bind(connection);

    Collector collector = Collector.Factory.create();
    connection.collect(collector);

    Session session = connection.session();
    session.open();

    String linkName = "mySender";
    Sender sender = session.sender(linkName);
    sender.open();

    sendMessage(sender, "tag1", "content1");

    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 0, transport.writes.size());

    // Now open the connection, expect the Open and Begin and Attach frames but
    // nothing else as we the sender wont have credit yet.
    connection.open();

    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 3, transport.writes.size());

    assertTrue("Unexpected frame type", transport.writes.get(0) instanceof Open);
    assertTrue("Unexpected frame type", transport.writes.get(1) instanceof Begin);
    assertTrue("Unexpected frame type", transport.writes.get(2) instanceof Attach);

    // Send the necessary responses to open/begin/attach then give sender credit
    transport.handleFrame(new TransportFrame(0, new Open(), null));

    Begin begin = new Begin();
    begin.setRemoteChannel(UnsignedShort.valueOf((short) 0));
    transport.handleFrame(new TransportFrame(0, begin, null));

    Attach attach = new Attach();
    attach.setHandle(UnsignedInteger.ZERO);
    attach.setRole(Role.RECEIVER);
    attach.setName(linkName);
    attach.setInitialDeliveryCount(UnsignedInteger.ZERO);
    transport.handleFrame(new TransportFrame(0, attach, null));

    Flow flow = new Flow();
    flow.setHandle(UnsignedInteger.ZERO);
    flow.setDeliveryCount(UnsignedInteger.ZERO);
    flow.setNextIncomingId(UnsignedInteger.ONE);
    flow.setNextOutgoingId(UnsignedInteger.ZERO);
    flow.setIncomingWindow(UnsignedInteger.valueOf(1024));
    flow.setOutgoingWindow(UnsignedInteger.valueOf(1024));
    flow.setLinkCredit(UnsignedInteger.valueOf(10));

    transport.handleFrame(new TransportFrame(0, flow, null));

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 3, transport.writes.size());

    // Now pump the transport again and expect a transfer for the message
    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 4, transport.writes.size());
    assertTrue("Unexpected frame type", transport.writes.get(3) instanceof Transfer);
}
 

void doEmitFlowOnSendTestImpl(boolean emitFlowEventOnSend)
{
    MockTransportImpl transport = new MockTransportImpl();
    transport.setEmitFlowEventOnSend(emitFlowEventOnSend);

    Connection connection = Proton.connection();
    transport.bind(connection);

    Collector collector = Collector.Factory.create();
    connection.collect(collector);

    Session session = connection.session();
    session.open();

    String linkName = "mySender";
    Sender sender = session.sender(linkName);
    sender.open();

    sendMessage(sender, "tag1", "content1");

    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 0, transport.writes.size());

    assertEvents(collector, Event.Type.CONNECTION_INIT, Event.Type.SESSION_INIT, Event.Type.SESSION_LOCAL_OPEN,
                            Event.Type.TRANSPORT, Event.Type.LINK_INIT, Event.Type.LINK_LOCAL_OPEN, Event.Type.TRANSPORT);

    // Now open the connection, expect the Open and Begin frames but
    // nothing else as we haven't opened the receiver itself yet.
    connection.open();

    pumpMockTransport(transport);

    assertEvents(collector, Event.Type.CONNECTION_LOCAL_OPEN, Event.Type.TRANSPORT);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 3, transport.writes.size());

    assertTrue("Unexpected frame type", transport.writes.get(0) instanceof Open);
    assertTrue("Unexpected frame type", transport.writes.get(1) instanceof Begin);
    assertTrue("Unexpected frame type", transport.writes.get(2) instanceof Attach);

    // Send the necessary responses to open/begin/attach then give sender credit
    transport.handleFrame(new TransportFrame(0, new Open(), null));

    Begin begin = new Begin();
    begin.setRemoteChannel(UnsignedShort.valueOf((short) 0));
    transport.handleFrame(new TransportFrame(0, begin, null));

    Attach attach = new Attach();
    attach.setHandle(UnsignedInteger.ZERO);
    attach.setRole(Role.RECEIVER);
    attach.setName(linkName);
    attach.setInitialDeliveryCount(UnsignedInteger.ZERO);
    transport.handleFrame(new TransportFrame(0, attach, null));

    Flow flow = new Flow();
    flow.setHandle(UnsignedInteger.ZERO);
    flow.setDeliveryCount(UnsignedInteger.ZERO);
    flow.setNextIncomingId(UnsignedInteger.ONE);
    flow.setNextOutgoingId(UnsignedInteger.ZERO);
    flow.setIncomingWindow(UnsignedInteger.valueOf(1024));
    flow.setOutgoingWindow(UnsignedInteger.valueOf(1024));
    flow.setLinkCredit(UnsignedInteger.valueOf(10));

    transport.handleFrame(new TransportFrame(0, flow, null));

    assertEvents(collector, Event.Type.CONNECTION_REMOTE_OPEN, Event.Type.SESSION_REMOTE_OPEN,
                            Event.Type.LINK_REMOTE_OPEN, Event.Type.LINK_FLOW);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 3, transport.writes.size());

    // Now pump the transport again and expect a transfer for the message
    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 4, transport.writes.size());
    assertTrue("Unexpected frame type", transport.writes.get(3) instanceof Transfer);

    // Verify that we did, or did not, emit a flow event
    if(emitFlowEventOnSend)
    {
        assertEvents(collector, Event.Type.LINK_FLOW);
    }
    else
    {
        assertNoEvents(collector);
    }
}
 

/**
 * Verify that no Flow frame is emitted by the Transport should a Sender
 * have credit drained added after the Close frame was sent.
 */
@Test
public void testSenderFlowAfterCloseSent()
{
    MockTransportImpl transport = new MockTransportImpl();

    Connection connection = Proton.connection();
    transport.bind(connection);

    connection.open();

    Collector collector = Collector.Factory.create();
    connection.collect(collector);

    Session session = connection.session();
    session.open();

    String linkName = "mySender";
    Sender sender = session.sender(linkName);
    sender.open();

    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 3, transport.writes.size());

    assertTrue("Unexpected frame type", transport.writes.get(0) instanceof Open);
    assertTrue("Unexpected frame type", transport.writes.get(1) instanceof Begin);
    assertTrue("Unexpected frame type", transport.writes.get(2) instanceof Attach);

    assertFalse("Should not be in drain yet", sender.getDrain());

    // Send the necessary responses to open/begin/attach then give sender credit and drain
    transport.handleFrame(new TransportFrame(0, new Open(), null));

    Begin begin = new Begin();
    begin.setRemoteChannel(UnsignedShort.valueOf((short) 0));
    transport.handleFrame(new TransportFrame(0, begin, null));

    Attach attach = new Attach();
    attach.setHandle(UnsignedInteger.ZERO);
    attach.setRole(Role.RECEIVER);
    attach.setName(linkName);
    attach.setInitialDeliveryCount(UnsignedInteger.ZERO);
    transport.handleFrame(new TransportFrame(0, attach, null));

    int credit = 10;
    Flow flow = new Flow();
    flow.setHandle(UnsignedInteger.ZERO);
    flow.setDeliveryCount(UnsignedInteger.ZERO);
    flow.setNextIncomingId(UnsignedInteger.ONE);
    flow.setNextOutgoingId(UnsignedInteger.ZERO);
    flow.setIncomingWindow(UnsignedInteger.valueOf(1024));
    flow.setOutgoingWindow(UnsignedInteger.valueOf(1024));
    flow.setDrain(true);
    flow.setLinkCredit(UnsignedInteger.valueOf(credit));

    transport.handleFrame(new TransportFrame(0, flow, null));

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 3, transport.writes.size());

    assertTrue("Should not be in drain", sender.getDrain());
    assertEquals("Should have credit", credit, sender.getCredit());

    // Cause the Close frame to be sent
    connection.close();
    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 4, transport.writes.size());
    assertTrue("Unexpected frame type", transport.writes.get(3) instanceof Close);

    // Drain the credit and verify the transport doesn't
    // send any Flow frame, as a Close frame was sent already.
    int drained = sender.drained();
    assertEquals("Should have drained all credit", credit, drained);

    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 4, transport.writes.size());
}
 

/**
 * Verify that no Transfer frame is emitted by the Transport should a Delivery
 * be sendable after the Close frame was sent.
 */
@Test
public void testTransferAfterCloseSent()
{
    MockTransportImpl transport = new MockTransportImpl();

    Connection connection = Proton.connection();
    transport.bind(connection);

    connection.open();

    Collector collector = Collector.Factory.create();
    connection.collect(collector);

    Session session = connection.session();
    session.open();

    String linkName = "mySender";
    Sender sender = session.sender(linkName);
    sender.open();

    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 3, transport.writes.size());

    assertTrue("Unexpected frame type", transport.writes.get(0) instanceof Open);
    assertTrue("Unexpected frame type", transport.writes.get(1) instanceof Begin);
    assertTrue("Unexpected frame type", transport.writes.get(2) instanceof Attach);

    // Send the necessary responses to open/begin/attach then give sender credit
    transport.handleFrame(new TransportFrame(0, new Open(), null));

    Begin begin = new Begin();
    begin.setRemoteChannel(UnsignedShort.valueOf((short) 0));
    transport.handleFrame(new TransportFrame(0, begin, null));

    Attach attach = new Attach();
    attach.setHandle(UnsignedInteger.ZERO);
    attach.setRole(Role.RECEIVER);
    attach.setName(linkName);
    attach.setInitialDeliveryCount(UnsignedInteger.ZERO);
    transport.handleFrame(new TransportFrame(0, attach, null));

    Flow flow = new Flow();
    flow.setHandle(UnsignedInteger.ZERO);
    flow.setDeliveryCount(UnsignedInteger.ZERO);
    flow.setNextIncomingId(UnsignedInteger.ONE);
    flow.setNextOutgoingId(UnsignedInteger.ZERO);
    flow.setIncomingWindow(UnsignedInteger.valueOf(1024));
    flow.setOutgoingWindow(UnsignedInteger.valueOf(1024));
    flow.setLinkCredit(UnsignedInteger.valueOf(10));

    transport.handleFrame(new TransportFrame(0, flow, null));

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 3, transport.writes.size());

    // Cause the Close frame to be sent
    connection.close();
    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 4, transport.writes.size());
    assertTrue("Unexpected frame type", transport.writes.get(3) instanceof Close);

    // Send a new message and verify the transport doesn't
    // send any Transfer frame, as a Close frame was sent already.
    sendMessage(sender, "tag1", "content1");
    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 4, transport.writes.size());
}
 

@Test
public void testEndpointOpenAndCloseAreIdempotent()
{
    MockTransportImpl transport = new MockTransportImpl();

    Connection connection = Proton.connection();
    transport.bind(connection);

    Collector collector = Collector.Factory.create();
    connection.collect(collector);

    connection.open();
    connection.open();

    Session session = connection.session();
    session.open();

    String linkName = "mySender";
    Sender sender = session.sender(linkName);
    sender.open();

    pumpMockTransport(transport);

    assertEvents(collector, Event.Type.CONNECTION_INIT, Event.Type.CONNECTION_LOCAL_OPEN, Event.Type.TRANSPORT,
                            Event.Type.SESSION_INIT, Event.Type.SESSION_LOCAL_OPEN,
                            Event.Type.TRANSPORT, Event.Type.LINK_INIT, Event.Type.LINK_LOCAL_OPEN, Event.Type.TRANSPORT);

    pumpMockTransport(transport);

    connection.open();
    session.open();
    sender.open();

    assertNoEvents(collector);

    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 3, transport.writes.size());

    assertTrue("Unexpected frame type", transport.writes.get(0) instanceof Open);
    assertTrue("Unexpected frame type", transport.writes.get(1) instanceof Begin);
    assertTrue("Unexpected frame type", transport.writes.get(2) instanceof Attach);

    // Send the necessary responses to open/begin/attach then give sender credit
    transport.handleFrame(new TransportFrame(0, new Open(), null));

    Begin begin = new Begin();
    begin.setRemoteChannel(UnsignedShort.valueOf((short) 0));
    transport.handleFrame(new TransportFrame(0, begin, null));

    Attach attach = new Attach();
    attach.setHandle(UnsignedInteger.ZERO);
    attach.setRole(Role.RECEIVER);
    attach.setName(linkName);
    attach.setInitialDeliveryCount(UnsignedInteger.ZERO);
    transport.handleFrame(new TransportFrame(0, attach, null));

    assertEvents(collector, Event.Type.CONNECTION_REMOTE_OPEN, Event.Type.SESSION_REMOTE_OPEN,
                            Event.Type.LINK_REMOTE_OPEN);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 3, transport.writes.size());

    // Now close the link and expect one event
    sender.close();
    sender.close();

    assertEvents(collector, Event.Type.LINK_LOCAL_CLOSE, Event.Type.TRANSPORT);

    pumpMockTransport(transport);

    sender.close();

    assertNoEvents(collector);

    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 4, transport.writes.size());
    assertTrue("Unexpected frame type", transport.writes.get(3) instanceof Detach);
}
 

private void doInvalidDispositionProvokesDecodeErrorTestImpl(byte[] bytes, String description) {
    MockTransportImpl transport = new MockTransportImpl();
    Connection connection = Proton.connection();

    Collector collector = Collector.Factory.create();
    connection.collect(collector);

    transport.bind(connection);
    connection.open();

    Session session = connection.session();
    session.open();

    String linkName = "mySender";
    Sender sender = session.sender(linkName);
    sender.open();

    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 3, transport.writes.size());
    assertTrue("Unexpected frame type", transport.writes.get(0) instanceof Open);
    assertTrue("Unexpected frame type", transport.writes.get(1) instanceof Begin);
    assertTrue("Unexpected frame type", transport.writes.get(2) instanceof Attach);

    // Provide the response bytes for the header
    transport.tail().put(AmqpHeader.HEADER);
    transport.process();

    // Send the necessary response to Open/Begin/Attach plus some credit
    transport.handleFrame(new TransportFrame(0, new Open(), null));

    Begin begin = new Begin();
    begin.setRemoteChannel(UnsignedShort.valueOf((short) 0));
    begin.setNextOutgoingId(UnsignedInteger.ONE);
    begin.setIncomingWindow(UnsignedInteger.valueOf(1024));
    begin.setOutgoingWindow(UnsignedInteger.valueOf(1024));
    transport.handleFrame(new TransportFrame(0, begin, null));

    Attach attach = new Attach();
    attach.setHandle(UnsignedInteger.ZERO);
    attach.setRole(Role.SENDER);
    attach.setName(linkName);
    attach.setInitialDeliveryCount(UnsignedInteger.ZERO);
    transport.handleFrame(new TransportFrame(0, attach, null));

    int credit = 1;
    Flow flow = new Flow();
    flow.setHandle(UnsignedInteger.ZERO);
    flow.setDeliveryCount(UnsignedInteger.ZERO);
    flow.setNextIncomingId(UnsignedInteger.ONE);
    flow.setNextOutgoingId(UnsignedInteger.ZERO);
    flow.setIncomingWindow(UnsignedInteger.valueOf(1024));
    flow.setOutgoingWindow(UnsignedInteger.valueOf(1024));
    flow.setDrain(true);
    flow.setLinkCredit(UnsignedInteger.valueOf(credit));
    transport.handleFrame(new TransportFrame(0, flow, null));

    sendMessage(sender, "tag1", "content1");

    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 4, transport.writes.size());
    assertTrue("Unexpected frame type", transport.writes.get(3) instanceof Transfer);

    int capacity = transport.capacity();
    assertTrue("Unexpected transport capacity: " + capacity, capacity > bytes.length);

    transport.tail().put(bytes);
    transport.process();

    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 5, transport.writes.size());
    FrameBody frameBody = transport.writes.get(4);
    assertTrue("Unexpected frame type", frameBody instanceof Close);

    // Expect the close frame generated to contain a decode error condition referencing the missing container-id.
    ErrorCondition expectedCondition = new ErrorCondition();
    expectedCondition.setCondition(AmqpError.DECODE_ERROR);
    expectedCondition.setDescription(description);

    assertEquals("Unexpected condition", expectedCondition, ((Close) frameBody).getError());
}
 

/**
 * Verify that no Disposition frame is emitted by the Transport should a Delivery
 * have disposition applied after the delivery has been settled previously.
 */
@Test
public void testNoDispositionUpdatesAfterSettlementProceessedReceiver()
{
    MockTransportImpl transport = new MockTransportImpl();
    Connection connection = Proton.connection();
    transport.bind(connection);

    connection.open();

    Session session = connection.session();
    session.open();

    String linkName = "myReceiver";
    Sender sender = session.sender(linkName);
    sender.open();

    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 3, transport.writes.size());

    assertTrue("Unexpected frame type", transport.writes.get(0) instanceof Open);
    assertTrue("Unexpected frame type", transport.writes.get(1) instanceof Begin);
    assertTrue("Unexpected frame type", transport.writes.get(2) instanceof Attach);

    // Send the necessary responses to open/begin/attach as well as a transfer
    transport.handleFrame(new TransportFrame(0, new Open(), null));

    Begin begin = new Begin();
    begin.setRemoteChannel(UnsignedShort.valueOf((short) 0));
    begin.setNextOutgoingId(UnsignedInteger.ONE);
    begin.setIncomingWindow(UnsignedInteger.valueOf(1024));
    begin.setOutgoingWindow(UnsignedInteger.valueOf(1024));
    transport.handleFrame(new TransportFrame(0, begin, null));

    Attach attach = new Attach();
    attach.setHandle(UnsignedInteger.ZERO);
    attach.setRole(Role.RECEIVER);
    attach.setName(linkName);
    attach.setInitialDeliveryCount(UnsignedInteger.ZERO);
    transport.handleFrame(new TransportFrame(0, attach, null));

    int credit = 1;
    Flow flow = new Flow();
    flow.setHandle(UnsignedInteger.ZERO);
    flow.setDeliveryCount(UnsignedInteger.ZERO);
    flow.setNextIncomingId(UnsignedInteger.ONE);
    flow.setNextOutgoingId(UnsignedInteger.ZERO);
    flow.setIncomingWindow(UnsignedInteger.valueOf(1024));
    flow.setOutgoingWindow(UnsignedInteger.valueOf(1024));
    flow.setDrain(true);
    flow.setLinkCredit(UnsignedInteger.valueOf(credit));
    transport.handleFrame(new TransportFrame(0, flow, null));

    Delivery delivery = sendMessage(sender, "tag1", "content1");

    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 4, transport.writes.size());
    assertTrue("Unexpected frame type", transport.writes.get(3) instanceof Transfer);

    delivery.disposition(Accepted.getInstance());
    delivery.settle();

    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 5, transport.writes.size());
    assertTrue("Unexpected frame type", transport.writes.get(4) instanceof Disposition);

    // Should not produce any new frames being written
    delivery.disposition(Accepted.getInstance());

    connection.close();
    pumpMockTransport(transport);

    assertEquals("Unexpected frames written: " + getFrameTypesWritten(transport), 6, transport.writes.size());
    assertTrue("Unexpected frame type", transport.writes.get(5) instanceof Close);
}
 

@Test
public void testMaxMessageSizeValue() throws Exception
{
    LOGGER.fine(bold("======== About to create transports"));

    Transport clientTransport = Proton.transport();
    getClient().setTransport(clientTransport);
    ProtocolTracerEnabler.setProtocolTracer(clientTransport, TestLoggingHelper.CLIENT_PREFIX);

    Transport serverTransport = Proton.transport();
    getServer().setTransport(serverTransport);
    ProtocolTracerEnabler.setProtocolTracer(serverTransport, "            " + TestLoggingHelper.SERVER_PREFIX);

    doOutputInputCycle();

    Connection clientConnection = Proton.connection();
    getClient().setConnection(clientConnection);
    clientTransport.bind(clientConnection);

    Connection serverConnection = Proton.connection();
    getServer().setConnection(serverConnection);
    serverTransport.bind(serverConnection);

    LOGGER.fine(bold("======== About to open connections"));
    clientConnection.open();
    serverConnection.open();

    doOutputInputCycle();

    LOGGER.fine(bold("======== About to open sessions"));
    Session clientSession = clientConnection.session();
    getClient().setSession(clientSession);
    clientSession.open();

    pumpClientToServer();

    Session serverSession = serverConnection.sessionHead(of(UNINITIALIZED), of(ACTIVE));
    getServer().setSession(serverSession);

    serverSession.open();

    pumpServerToClient();

    LOGGER.fine(bold("======== About to create receiver"));

    Source clientSource = new Source();
    getClient().setSource(clientSource);
    clientSource.setAddress(_sourceAddress);

    Target clientTarget = new Target();
    getClient().setTarget(clientTarget);
    clientTarget.setAddress(null);

    Receiver clientReceiver = clientSession.receiver("link1");
    getClient().setReceiver(clientReceiver);
    clientReceiver.setTarget(clientTarget);
    clientReceiver.setSource(clientSource);

    clientReceiver.setReceiverSettleMode(ReceiverSettleMode.FIRST);
    clientReceiver.setSenderSettleMode(SenderSettleMode.UNSETTLED);

    // Set the local link max-message-size
    assertNull("Expected no value to be set", clientReceiver.getMaxMessageSize());
    clientReceiver.setMaxMessageSize(CLIENT_MAX_MSG_SIZE);
    assertEquals("Expected value to be set", CLIENT_MAX_MSG_SIZE, clientReceiver.getMaxMessageSize());

    clientReceiver.open();
    pumpClientToServer();

    LOGGER.fine(bold("======== About to set up implicitly created sender"));

    Sender serverSender = (Sender) getServer().getConnection().linkHead(of(UNINITIALIZED), of(ACTIVE));
    getServer().setSender(serverSender);

    serverSender.setReceiverSettleMode(serverSender.getRemoteReceiverSettleMode());
    serverSender.setSenderSettleMode(serverSender.getRemoteSenderSettleMode());

    org.apache.qpid.proton.amqp.transport.Source serverRemoteSource = serverSender.getRemoteSource();
    serverSender.setSource(serverRemoteSource);

    assertEquals("Expected value to be set", CLIENT_MAX_MSG_SIZE, serverSender.getRemoteMaxMessageSize());

    // Set the local link max-message-size
    assertNull("Expected no value to be set", serverSender.getMaxMessageSize());
    serverSender.setMaxMessageSize(SERVER_MAX_MSG_SIZE);
    assertEquals("Expected value to be set", SERVER_MAX_MSG_SIZE, serverSender.getMaxMessageSize());

    serverSender.open();

    assertNull("Expected no value to be present yet", clientReceiver.getRemoteMaxMessageSize());

    pumpServerToClient();

    assertEquals("Expected value to be set", SERVER_MAX_MSG_SIZE, clientReceiver.getRemoteMaxMessageSize());
}