what exactly are you interested in?
when i was using tomcat, i read from the above book its architecture on chapter 3 and a brief about its components.
Now i am developing jax-ws and i am using wildfly.
I have read the following, javaee architecture (CHAPTER EE.2 from the specs), "Apache cxf web service development" (chapter2 cxf architecture & chapter5 phase and chain ) and also undertow documentation (section Architecture Overview). Although it is not necessary for me now, I would like to know more about wildfly architecture, how it is structured and about its components.
Thanks a lot
I don't know if Wildfly Cookbook by Luigi Fugaro or Wildfly Configuration, Deployment and Administration by Christopher Ritchie can help