Issue in dequeuing messages on Linux using AQjmsTextMessage_C.getFactory().

Question

Hi All,
This is regarding issue related to Dequeuing of message from AQ on Linux platform using JAVA API. Our appliaction is sending message on AQ which has queue payload type of type 'SYS.AQ$_JMS_TEXT_MESSAGE'. For dequeuing of this message we are using method AQjmsTextMessage_C.getFactory() that returns CustomDatumFactory.
The code snippet is as follows:
AQDequeueOption dequeueOption = new AQDequeueOption();
message = ((AQOracleQueue)l_queue).dequeue(dequeueOption,AQjmsTextMessage_C.getFactory());
The code is working fine on Windows environment. I ran the code from JDev IDE and also from batch file which was hitting the Oracle AQ installed on Linux environment. In both the case either through IDE or through batch file the code is running properly.
The same code on Linux is not working properly i.e. when the method AQjmsTextMessage_C.getFactory() is called we are not able to get the CustomDatumFactory. We are not getting any errors/exceptions and the control is directly going to finally block of our method and we are not getting the message from AQ. We tried with different jar files that contain the AQjmsTextMessage_C class but still not able to figure out the issue(The jar files used are viz. aqapi.jar,aqapi12.jar,aqapi13.jar,aqapi_g.jar,aqapi12_g.jar,aqapi13_g.jar).
The script that we used for creating the queue is as follows:
BEGIN
dbms_aqadm.create_queue_table(
queue_table=>'SAMPLE_T',
queue_payload_type=>'SYS.AQ$_JMS_TEXT_MESSAGE',
multiple_consumers => false,
comment => 'Queue Table For Text Message'
END;
BEGIN
dbms_aqadm.create_queue (
queue_name => 'SAMPLE_Q',
queue_table => 'SAMPLE_T');
END;
BEGIN
dbms_aqadm.start_queue (queue_name=>'SAMPLE_Q');
END;
Please let me know if you have faced such issue on Linux environment or have any pointers about the same.
Regards,
Abhishek

Answer 1

If "control is directly going to finally block" there must be some (unchecked) runtime exception. Catch it.
try{
  AQDequeueOption dequeueOption = new AQDequeueOption();
  message = ((AQOracleQueue)l_queue).dequeue(dequeueOption,AQjmsTextMessage_C.getFactory());
} catch (Throwable t) {
  t.printStackTrace()
}You probably just don't have native code in the library path.