Hi,

I looked around and found some sample code to publish to a JBoss topic...

public static boolean publish(String xml) throws Exception
 {
 log.info("Creating jndi context - alternatively use a jndi.properties");
 Properties properties = new Properties();
 properties.put(Context.INITIAL_CONTEXT_FACTORY, "org.jnp.interfaces.NamingContextFactory");
 properties.put(Context.URL_PKG_PREFIXES, "org.jnp.interfaces");
 properties.put(Context.PROVIDER_URL, "jnp://myserver:1099");
 InitialContext ctx = new InitialContext(properties);

 Topic topic = (Topic) ctx.lookup("topic/myTopic");
 TopicConnectionFactory tcf = (TopicConnectionFactory) ctx.lookup("ConnectionFactory");
 TopicConnection tc = tcf.createTopicConnection("user","pwd");
 try
 {
 TopicSession ts = tc.createTopicSession(false, Session.AUTO_ACKNOWLEDGE);
 TopicPublisher publisher = ts.createPublisher(topic);
 TextMessage message = ts.createTextMessage(xml);

 publisher.send(message);
 publisher.close();
 tc.close();
 return true;
 }
 catch(Exception e){
 log.error("Exception thrown trying to send to topic", e);
 return false;
 }
 finally
 {
 tc.close();
 }
 }

If I disable the subscriber to the topic and look in the JMS_MESSAGES table (HA JMS is configured), I find 8 duplicated messages. There is no looping and only a single subscriber has been configured. Since this is the first tested topic other than the samples that come already installed, this is the only custom configuration so far. I set up the topic in the *-service.xml file as follows...

<mbean code="org.jboss.mq.server.jmx.Topic"
 name="jboss.mq.destination:service=Topic,name=myTopic">
 <depends optional-attribute-name="DestinationManager">jboss.mq:service=DestinationManager</depends>
 <depends optional-attribute-name="SecurityManager">jboss.mq:service=SecurityManager</depends>
 <attribute name="SecurityConf">
 <security>
 <role name="guest" read="true" write="true"/>
 <role name="publisher" read="true" write="true" create="false"/>
 <role name="durpublisher" read="true" write="true" create="true"/>
 </security>
 </attribute>
 </mbean>

I am not sure what could be causing the superfluous messages. Is there a known issue with publishing to topics? I am using JBoss 4.0.2 and JDK 1.5.

Thanks in advance!

Theresa