NoClassDefFoundError in spring

Question

I wrote a Spring application which runs on Weblogic 10.3. In this application I have some JMS Queue consumers.

Sometimes I got an error when the application is closing

Answer 1

That Exception means that the class is not getting loaded into the JVM. Make sure that the spring.jar is in the Weblogic server's classpath or library folder.

Answer 2

It's all very well that you have this class in your war, but in Weblogic, the war has its own classloader. Since your stack trace shows a JMS listener, I'd ask: where is the listener? If it's in the war, then you have a mystery. But it sure looks as though it's somewhere else, and it's that somewhere else that would be missing this Spring class.