When I google it I reached to Manning's site there is a book on struts in action.
I think you are talking about book source code struts in action.
I am not sure but I just seen table of contents online there are some actions which you mentioned.
@Jose: download the Struts source code. Read the Javadocs for the classes you mention, and read the source code.
Note that some you mention (SuccessAction, for example), are part of the examples/cookbook. How simple can an action be, and why am I encouraging you to just *look* instead of wait? Here's the (expurgated) source code for SuccessAction:They're not all that easy--but ShowSomeEffort.