Why do the JMS dbms_aqadm.add_subscriber and dbms_aqadm.remove_subscriber calls sometimes hang when there are concurrent enqueues or dequeues happening on the same queue to which these calls are issued?
1 1872Why do the TopicSession.createDurableSubscriber and TopicSession.unubscribe calls raise JMSException with the message "ORA - 4020 - deadlock detected while trying to lock object"?
1 1543Why doesn't AQ_ADMINISTRATOR_ROLE or AQ_USER_ROLE always work for AQ applications using Java/JMS API?
1 2937
A person says that he compiled a java class successfully without even having a main method in it? Is it possible?
What is thin driver in jdbc?
What is called servlet mapping?
What are orm integration modules?
How will you add panel to a frame?
What is the difference between conversation & casting?
What is the difference between an argument and a parameter?
What are orm tools?
What is meant by memory leak?
What do you understand by synchronization? Why is it important?
What is hibernate dialect for oracle?
What is JDBC Driver interface?How can you retrieve data from the ResultSet
What is a multipartresolver and when is it used?
How do I write a self declaration?
What are the two types of exceptions in java? Which are the differences between them?