I concur with Jesper. In fact, since the Ajax ActionEvent is part of JSF since JSF 2.0, I'm suspecting that you are attempting to deploy a JSF application written for JSF version 1, or
you should have found some ActionEvent class even if it was the wrong copy.
In fact, the most likely scenario here is a JSF version 1 app that was built for a pre-JEE server (or for
Tomcat or jeTTY, which don't have integrated JSF) so that the JSF libraries build into WebLogic are being hidden.
And if that's true, you have a lot of work ahead of you, since any such app probably used
JSP View Templates, which don't work at all under JSF version 2.
The secret of how to be miserable is to constantly expect things are going to happen the way that they are "supposed" to happen.
You can have faith, which carries the understanding that you may be disappointed. Then there's being a willfully-blind idiot, which virtually guarantees it.