throwing Exceptions from perform()

[Jonathan]

I am seeing that I can only throw IOException and ServletException from my Action classes.  Now I was thinking about adding Exceptions to the Action class but that would make it proprietary.  I could add just Exception, but I dont want to change anything without good reason.  Can you all telll me why I am limited to these two exceptions and what you all are doing about this.  The reason is that I have my own exceptions for my app, and will need to throw them sometimes within the perform method. Thanx Jonathan