So I thought that might be the case in that regards but the hashcode is correct because I print the hashcode on handler add and the hashcode on message send and they both match up. I'll do more testing tonight to see if I made a mistake because that is a likely candidate so hopefully I find something tonight.Also, do I need the "event.getCometContext().resumeCometHandler(this);" in the handler because from looking at the code it removes it from the map?ThanksMinh> Date: Mon, 15 Oct 2007 20:06:52 -0400> From: Jeanfrancois.Arcand@Sun.COM> Subject: Re: comet help> To: minh13_o@hotmail.com> CC: users@grizzly.dev.java.net> > Hi Minh,> > The problem seems to be related to the hash code used to notify the > second client. I suspect line 56:> > int hashCode = context.addCometHandler(handler);> > is not called when you invoke the sendMessage(....):> > int hashCode = handler.hashCode();> context.notify(message, CometEvent.NOTIFY, hashCode);> > this is probably line 158 that produce the exception. Internally, what > it does is:> > > 443 public void notify(final E attachment,final int eventType,final int cometHandlerID)> > 444 throws IOException{> > 445 CometHandler cometHandler = getCometHandler(cometHandlerID);> > 446 > > 447 if (cometHandler == null){> > 448 throw new IllegalStateException(INVALID_COMET_HANDLER);> > 449 }> > Here the getCometHandler() will return null if the addCometHandler > hasn't been invoked previously. Can you double check your CometHandler > has been added?> > You code looks good (and you seems to use the non blocking read/write, > which is something I still need to blog on :-) You will beat me on those > features :-) :-)> > Thanks!> > -- Jeanfrancois> > > > Minh O wrote:> > Hi Jeanfrancois,> > > > I'm using glassfish-installer-v2-b58g-windows > > <
http://java.net/download/javaee5/v2_branch/promoted/WINNT/glassfish-installer-v2-b58g.jar>> > > > For the part where the resume is happening, I assume that you are > > refering to> > > > "//event.getCometContext().resumeCometHandler(this);"> > > > That was in originally but I didn't work for me so I commented it out > > and add the these 2 lines below it and that still didn't work so I left > > them all commented out.> > > > "//event.getCometContext().registerAsyncRead(this);> > //event.getCometContext().registerAsyncWrite(this);"> > > > Thanks for responding so quickly, you probably get tons of emails for > > help. Once I get this working, I'd like to post a tutorial on this as I > > think it would be a great example and provide a lot of insight to how it > > works.> > > > Thanks again,> > > > Minh> > > > > Date: Mon, 15 Oct 2007 09:50:01 -0400> > > From: Jeanfrancois.Arcand@Sun.COM> > > Subject: Re: comet help> > > To: users@grizzly.dev.java.net> > > CC: minh13_o@hotmail.com> > >> > > Hi Minh,> > >> > >> > >> > >> > > Minh O wrote:> > > > Hi Jeanfrancois,> > > >> > > > I've been trying to implement a chat program where a user can send a> > > > message to his/her buddies. I've implemented it so that there are only> > > > 2 people that can send messages to each other but when I send a > > post to> > > > forward to a user, I get this message.> > > >> > > > 'java.lang.IllegalStateException: CometHandler cannot be null. This> > > > CometHandler> > > > was probably resumed and an invalid reference was made to it.'> > > >> > > > Below is the code that is invoked to forward the message to the user.> > > >> > > > {code}> > > > public void sendMessage(Message message, CometHandler handler) {> > > >> > > > if(handler != null) {> > > > try {> > > > CometEngine engine = CometEngine.getEngine();> > > > CometContext context => > > > engine.getCometContext(CHAT_CONTEXT_PATH);> > > > int hashCode = handler.hashCode();> > > > sLogger.info('[CometChat2]\tSending message to: ' +> > > > message.getTo()> > > > + ' from: ' + message.getFrom() + ' handler> > > > hashcode: ' + hashCode);> > > > context.notify(message, CometEvent.NOTIFY, hashCode);> > > > } catch (IOException e) {> > > > // TODO Auto-generated catch block> > > > e.printStackTrace();> > > > }> > > > } else {> > > > sLogger.severe('[CometChat]\tHandler is null for sending> > > > message to: ' + message.getTo());> > > > }> > > > }> > > > {code}> > > >> > > >> > > > This is what is in the CometHandler implementation.> > > > {code}> > > > @Override> > > > public void onEvent(CometEvent event) throws IOException {> > > > // TODO Auto-generated method stub> > > > sLogger.info('[CometChatHandler]\tEvent type is: ' +> > > > event.getType());> > > > if(event.getType() == CometEvent.NOTIFY) {> > > > Object obj = event.attachment();> > > >> > > > if(obj != null && obj instanceof Message) {> > > > PrintWriter writer = response.getWriter();> > > > writer.write(XStreamUtil.objectToJSON('jsonMSG', obj));> > > > writer.flush();> > > >> > > > //event.getCometContext().resumeCometHandler(this);> > > > //event.getCometContext().registerAsyncRead(this);> > > > //event.getCometContext().registerAsyncWrite(this);> > > >> > > > } else {> > > > sLogger.severe('[CometChatHandler]\tEvent attachment is> > > > not a Message obj: ' + obj.getClass().getName());> > > > }> > > > }> > > > }> > > > {code}> > > >> > > > I've attach the servlet code and the handler code. If you could point> > > > me to the right direction, it would be greatly appreciated.> > >> > > Hum...this is strange as your code that resume the CometHandler is> > > commented out. Let me take a look . Are you using GlassFish or Grizzly> > > standalone?> > >> > > Thanks> > >> > > -- Jeanfrancois> > >> > >> > >> > > >> > > > Minh> > > >> > > > > > ------------------------------------------------------------------------> > > > Climb to the top of the charts! Play Star Shuffle: the word scramble> > > > challenge with star power. Play Now!> > > > > > <
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