Hi, I'm hoping this is an easy fix, I think it has to do with Configuration,
but I can't find anything to answer the question. I'm trying to set up a
simple servlet that dump text into the topic/testTopic topic that is configured
on JBoss 4.0.4RC1. I've pretty much pulled the code out of Ch6 of the
documentation and adjusted it for Web App use. See Source:
| public void setupPubSub() throws JMSException, NamingException
| {
| InitialContext iniCtx = new InitialContext();
| TopicConnectionFactory tcf =
(TopicConnectionFactory)iniCtx.lookup("java:comp/env/jms/ConnectionFactory");
| if (tcf == null)
| System.out.println("tcf is null");
| else
| System.out.println("tcf is NOT null");
|
| conn = tcf.createTopicConnection();
| topic = (Topic) iniCtx.lookup("java:comp/env/jms/testTopic");
| if (topic == null)
| System.out.println("topic is null");
| else
| System.out.println("topic is NOT null");
| session = conn.createTopicSession(false,
| TopicSession.AUTO_ACKNOWLEDGE);
| conn.start();
| }
|
|
A NullPointerException is thrown at:
conn = tcf.createTopicConnection();
The "if" block directly above it confirms that tcf is indeed null. Originally
I had been having problems getting the naming correct through the
jboss-web.xml, and web.xml, however that all seems to be working now. FYI:
the "topic" returned is not null, so I know that call works anyway.
It seems that I am getting the naming correct, but for some reason the object
returned by the lookup is null. Help please.
web.xml (parts):
| <resource-ref>
| <description>
| Testing the reference info for a TopicConnection Factory
| </description>
| <res-ref-name>jms/ConnectionFactory</res-ref-name>
| <res-type>javax.jms.TopicConnectionFactory</res-type>
| <res-auth>Container</res-auth>
| </resource-ref>
|
| <resource-env-ref>
| <resource-env-ref-name>jms/testTopic</resource-env-ref-name>
| <resource-env-ref-type>javax.jms.Topic</resource-env-ref-type>
| </resource-env-ref>
|
jboss-web.xml:
| <jboss-web>
| <!-- Jboss web XML file to set mapping for JMS to test topic -->
|
| <resource-ref>
| <res-ref-name>jms/ConnectionFactory</res-ref-name>
| <res-type>javax.jms.TopicConnectionFactory</res-type>
| <jndi-name>java:ConnectionFactory</jndi-name>
| </resource-ref>
|
| <resource-env-ref>
| <resource-env-ref-name>jms/testTopic</resource-env-ref-name>
| <jndi-name>java:topic/testTopic</jndi-name>
| </resource-env-ref>
| </jboss-web>
|
Thanks,
Mark Loper
[EMAIL PROTECTED]
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