I’m having trouble getting a message to go through using ErraiBus.  I’m using this on the client side:

                     CommandMessage msg = (CommandMessage) CommandMessage.create().toSubject("Items").set("SerialNumber", serialInput.getValue());

                     bus.conversationWith(msg, new MessageCallback() {

                           @Override

                           public void callback(Message message) {

                                //throw new UnsupportedOperationException("Not supported yet.");

                                Item item = message.get(Item.class, "Item");

                                MessageBox.alert("Errai", item.getSerialNumber().toString(), null);

                           }

                     });

With this on the server side:

@Service("Items")

public class Items implements MessageCallback {

     private MessageBus bus;

     @Inject

     public Items(MessageBus bus) {

           this.bus = bus;

           System.out.println("Got a bus...");

     }

     @Override

     public void callback(Message message) {

           //throw new UnsupportedOperationException("Not supported yet.");

           System.out.println("Incoming message...");

           Long serialNum = message.get(Long.class, "SerialNumber");

           System.out.println(serialNum);

           Item item = new Item();

           item.setSerialNumber(serialNum);

           ConversationMessage.create(message).set("Item",item).sendNowWith(bus);

     }

}

However, all it seems to send is:

{"CommandType":"RemoteSubscribe","ToSubject":"ServerBus","Subject":"temp:Conversation:2","PriorityProcessing":"1"}

I don’t see where it actually sends my body or the subject that I fill out in my message.  Nothing also gets to the Service class.  Am I doing something wrong?  I have Tomcat running NIO and everything else seems set up correctly.  It will keep a GET connection open and do the POST of the JSON above, but nowhere does it seem to send what I want it to.  I also seem to be getting these occasionally, usually on some of the first requests to in.erraiBus:

java.lang.NullPointerException

        at org.jboss.errai.bus.server.servlet.TomcatCometServlet.event(TomcatCometServlet.java:105)

        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilterEvent(Unknown Source)

        at org.apache.catalina.core.ApplicationFilterChain.doFilterEvent(Unknown Source)

        at org.apache.catalina.core.StandardWrapperValve.event(Unknown Source)

        at org.apache.catalina.core.StandardContextValve.event(Unknown Source)

        at org.apache.catalina.core.StandardHostValve.event(Unknown Source)

        at org.apache.catalina.valves.ValveBase.event(Unknown Source)

        at org.apache.catalina.core.StandardEngineValve.event(Unknown Source)

        at org.apache.catalina.connector.CoyoteAdapter.event(Unknown Source)

        at org.apache.coyote.http11.Http11NioProcessor.event(Unknown Source)

        at org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.event(Unknown Source)

        at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(Unknown Source)

        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)

        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)

        at java.lang.Thread.run(Thread.java:619)

Can anyone point me at what I’m missing?