Problem with JMS AQ in Oracle 8i

Question

Hi Everyone
I found an exception when I tried to publish the message which shown below. The connection is already established bit it's exception at publisher.publish(topic, obj_message);
Could anyone please help me sort it out?
The exception is:
java.lang.NullPointerException at oracle.jms.AQjmsTextMessage.populateTextMessageContainer(AQjmsTextMessage.java:179)
My code is:
public void publish(javax.jms.TopicSession jms_session, javax.jms.TextMessage obj_message) {
javax.jms.TopicPublisher publisher;
javax.jms.Topic topic;
try{
     /* get a handle to the booked_orders topic */
     System.out.println("Get Topic");
     topic = ((oracle.jms.AQjmsSession) jms_session).getTopic("WWW","THINK_QUEUE");
     System.out.println("Finished");
     publisher = jms_session.createPublisher(topic);
     System.out.println("CreatePublisher");
     publisher.publish(topic, obj_message);
     System.out.println("Finished");
     jms_session.commit();
catch (javax.jms.JMSException ex)
     System.out.println("Exception: " + ex);
Many Thanks,

Answer 1

Hi,
Are you sure the text message is populated. Add the following before the publish
obj_message.setText("abc");
Hi Everyone
I found an exception when I tried to publish the message which shown below. The connection is already established bit it's exception at publisher.publish(topic, obj_message);
Could anyone please help me sort it out?
The exception is:
java.lang.NullPointerException at oracle.jms.AQjmsTextMessage.populateTextMessageContainer(AQjmsTextMessage.java:179)
My code is:
public void publish(javax.jms.TopicSession jms_session, javax.jms.TextMessage obj_message) {
javax.jms.TopicPublisher publisher;
javax.jms.Topic topic;
try{
     /* get a handle to the booked_orders topic */
     System.out.println("Get Topic");
     topic = ((oracle.jms.AQjmsSession) jms_session).getTopic("WWW","THINK_QUEUE");
     System.out.println("Finished");
     publisher = jms_session.createPublisher(topic);
     System.out.println("CreatePublisher");
     publisher.publish(topic, obj_message);
     System.out.println("Finished");
     jms_session.commit();
catch (javax.jms.JMSException ex)
     System.out.println("Exception: " + ex);
Many Thanks,