XWork2 documentation is out of date due to some stuff added to make it works with Struts2. The XWork1 documentation is merged into
WebWork
About XWork
Features
Concepts
Team
Contributing
Bugs and Issues
Articles
License
Getting Started
Download
Installation
Requirements and Dependencies
Tutorial
Reference
API
Architecture
xwork.xml
Configurations
Interceptors
Package
Actions
Pre Result Listeners
Results
Object Factory
Conversion
Validation
Profiling
Value Stack
Annotations
Reloading
OGNL
Localization
Integration
Spring
Hibernate
Help
FAQs
Contributors Guide
Source
Building the Framework from Source
How to Write Doc Comments for the Javadoc Tool
(Sun)
Precise Error Reporting
Distribution
Documentation
Documentation Colophon
Documentation Style Guide