WAS Migration from 6.1 to 7.0 - Steps

Websphere Application Server Migration from 6.1 to 7.0

I faced lot of issues while migrating our application from Application Server 6.1 to websphere Application Server 7.0. Our Application is build on Spring 2.5.4, JSF 1.1, Richfaces, JPA. I was finally able to fix the issues and make the application up and running in WAS 7.0.

Basically we need to do is Jar file need to be used appropriately to migrate from 6.1 to 7.0.
WAS 7.0 support JSF 1.2 in default. So if you are pointing to 1.1 jar please remove it.

Following are core steps taken to migrate
1. Use Websphere 7.0 runtime server configuration and JRE.

2. Use ojdbc6.jar instead of ojdbc14.jar

3. Remove JSF 1.2 from lib and use the default JSF 1.2 from WAS 7.0

4. Upgrade Fecelets for JSF 1.2 (facelets-1.1.15-jsf1.2)

5. Upgrade Richfaces to

        > richfaces-ui-3.3.1.GA.jar

        > richfaces-impl-3.3.1.GA.jar

        > richfaces-api-3.3.1.GA.jar
6. Add all the spring 2.5.6 dependent jars in your workspace including jar files  given in step 7

7. Add following Jar files

        > spring-agent.jar

        > spring-aspects.jar

If you are coming across below exception please follow above steps to resolve it. Basically issue is in jar file conflict in your working environment. Once dependency jars are fixed you are good go.


org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.context.annotation.internalPersistenceAnnotationProcessor': Initialization of bean failed; nested exception is java.lang.NullPointerException