If you're using struts2 I don't think there is a tag that will give you the ability to get values directly from the request object like you can in struts1. I also don't think that request attributes and parameters get put onto the value stack automatically (if they do I haven't found the correct syntax with which to access them) so you may need to put a scriptlet in your JSP to get the data from your request. If you want to access the values from STRUTS tags with OGNL you'll need to push the value onto the stack.
You could also store the arraylist in your action class and create setters and getters for it. Then your JSP will have access to it and it will be on your OGNL stack automatically.