CODEWITHSUNDEEP
springjmsjndiibm-mqspring-jms
Bharath
Bharath

Reputation: 259

ClassCastException on @Resource injection of MQQueueConnectionFactory

I am trying to inject the MQQueueConnectionFactory defined as a JNDI resource into my spring configuration using @Resource. I am getting a ClassCastException while doing this. I am really confused on how to solve this. I am using JDK7 and spring 4.1.6.RELEASE. The MQ client is installed in a standard way and exported to tomcat classpath. 

[ERROR] [TokenId=] [2015-05-29 21:33:53.496] [DispatcherServlet] - [Context initialization failed]
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'messagingConfig': Injection of resource dependencies failed; nested exception is org.
springframework.beans.factory.BeanNotOfRequiredTypeException: Bean named 'java:comp/env/jms/SSAJMSQueueConnectionFactory' must be of type [javax.jms.ConnectionFactory], but
was actually of type [com.ibm.mq.jms.MQQueueConnectionFactory]

Upvotes: 0

Views: 200

Answers (1)

Tim McCormick
Tim McCormick

Reputation: 956

When you see a ClassCastException which doesn't make sense, where you know for example that MQQueueConnectionFactory is an extension of ConnectionFactory, then it usually points to a classloader problem.

In most cases MQQueueConnectionFactory has been loaded with a different classloader to ConnectionFactory - this will cause a ClassCastException if you attempt to cast one to another even though you'd expect it to work.

Upvotes: 1

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