Exception sending context initialized event to listener

When i am running my application it give me this exception:-

Exception sending context initialized event to listener instance of class org.springframework.web.util.Log4jConfigListener
java.lang.ExceptionInInitializerError



But this problem is not permanent. Id i remove the log4j entries from web.xml and restart p.c and then again add log4j entries and start the server, then the application works fine.
I noticed that when the application is deployed and when i undeploy and again deploy the same application, this problem emerge.

Please help me ........ i am facing this problem from 3 months...

Hello

1) use code tags
2) post the complete error stack trace to get a complete idea, according with that I should ask for some source code
to see what is wrong