It appears you've updated this thread here: https://developer.jboss.org/thread/203253
This class is referenced (used by the tag file), but cannot be found in classpath.
Confirm which jar contains this class and put the correct jar inside your deployment /WEB-INF/lib, or install it as JBoss custom module.
If you still cannot sort it out, Is that possible to upload a simple reproducer (contains minimized files only necessary to reproduce the issue on an out-of-box EAP 6.3) ?
That was a perfect reply and directed me in correct direction.
I was thinking about modifying No library as thought it should work with the same library as it was on IBM WAS 7.0.
To avoid java.lang.ClassNotFoundException: org.springframework.web.servlet.tags.RequestContextAwareTag
I added org.springframework.web.servlet-3.1.0.M2.jar in classpath
Then I got error java.lang.ClassNotFoundException: org.apache.commons.validator.ValidatorResources
So added commons-validator-1.4.0.jar
And problem got resolved.
Thank you so much.