Description of problem:

A ClassCastException like the following is hit if a valve forwards a request:

ERROR [org.apache.catalina.connector] (http-localhost/127.0.0.1:8080-1) JBWEB001018: An exception or error occurred in the container during the request processing: java.lang.ClassCastException: org.apache.catalina.connector.Request cannot be cast to javax.servlet.ServletRequestWrapper
	at org.apache.catalina.core.ApplicationFilterFactory.createFilterChain(ApplicationFilterFactory.java:136) [jbossweb-7.5.7.Final-redhat-1.jar:7.5.7.Final-redhat-1]
	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:819) [jbossweb-7.5.7.Final-redhat-1.jar:7.5.7.Final-redhat-1]
	at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:620) [jbossweb-7.5.7.Final-redhat-1.jar:7.5.7.Final-redhat-1]
	at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:553) [jbossweb-7.5.7.Final-redhat-1.jar:7.5.7.Final-redhat-1]
	at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:482) [jbossweb-7.5.7.Final-redhat-1.jar:7.5.7.Final-redhat-1]

Version-Release number of selected component (if applicable):

7.5.12

How reproducible:

Very

Steps to Reproduce:
1. Forward a request from a valve
2.
3.

Actual results:

ClassCastException

Expected results:

No exceptions

Additional info: