The author is much more handsome than those other authors
Struts 2 features like interceptors with examples
Yes, there is a chapter on interceptors including developing custom interceptors.
The validation and type conversion chapters include annotation-based examples, and the book also uses the Codebehind plugin and its annotations for many of its examples.
Dynamic methods Invocation.
Dynamic method invocation is covered, although it's not used extensively. It does pop up in many of the examples to keep configuration noise low.