RE: Running Consumer sample:

Verify the type of the object, before casting:

Object object = context.lookup(topicName);
if (object instanceof Topic) {
 ....
} else if (object != null) {
  System.err.println("Expected a topic, but got " +
object.getClass().getName());
} else {
  System.err.println("Topic is null");
}


> -----Original Message-----
> From: openjms-developer-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
> [mailto:openjms-developer-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org]On Behalf Of
> Thomas, Ivy
> Sent: Sunday, 27 July 2003 6:06 AM
> To: 'openjms-developer-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org'
> Subject: RE: [openjms-developer] Running Consumer sample:
>
>
> It is a topic and I tried casting it to both Topic and JmsTopic. Same
> problem. I tried running the Publisher sample and added the rebind and
> lookup but it failed.
> Thanks
> Ivy
>
> -----Original Message-----
> From: Thomas, Ivy [mailto:ithomas-T2hhe/[email protected]]
> Sent: Thursday, July 24, 2003 5:25 PM
> To: 'openjms-developer-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org'
> Subject: [openjms-developer] Running Consumer sample:
>
>
> Hello,
>  Lookup of topic failed. Here is what I did.
>  1. startup -config ../config/tcp_jms.xml
>  2. runconsumer -topic topic1 -mode tcp -persistent
>  The error is :
>
> examples client.console.SimpleConsumer -topic topic1 -mode tcp -persistent
> java.lang.ClassCastException
>         at
> openjms.examples.client.console.SimpleConsumer.main(SimpleConsumer.ja
> va:251)
> Fatal error: java.lang.ClassCastException
> Exiting.....
>  In the non persistent mode the Consumer (createtopic instead of lookup)
> works fine.  It is failing at lookup of the topic name. I ran this example
> after my code started failing on lookup:(
> Appreciate your help.
> Thanks
> Ivy
>
>
>
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