This rule flags the use of the com.ibm.websphere.servlet.filter classes that were removed in WebSphere Application Server version 7.0. These packages are no longer available for use by applications. This rule scans for the use of these packages in Java files.
Rearchitect your applications to use javax.servlet.filter classes rather than com.ibm.websphere.servlet.filter classes. Starting from the Servlet 2.3 specification, javax.servlet.filter classes give you the capability to intercept requests and examine responses. You can also chain functionality as well as embellish and truncate responses.
Information on how to use servlet filtering in WebSphere can be found in the Servlet Filtering documentation.
The documentation has a detailed list of the removed features in version 6.1. Go to the Removed features article and select Features removed in Version 7.0 to see the complete list. Comprehensive information for other versions of WebSphere is also available in that article.