Struts2 Documentation

Where is it? Clearly I’m missing something here. There’s a wiki with some good getting started overview stuff and some other chicken scratching but I’m yet to find an actual reference telling me what’s actually allowed in struts.xml. Shouldn’t that be pointed to in a big neon sign? The struts.xml page on the wiki isn’t exactly comprehensive and while the DTD is listed on the examples page it’s not exactly commented..

Oh and did I mention that wiki’s are a horrible way to write documentation?