The portlet API and WSRP are quite new technologies and few books where published. As The eXo platform was one of the very first portal to be certified we obtained a great momumtum and the first book about JSR 168 portals based all its code examples on our software. We did not write any line of this book so all the great comments about our architecture were not influenced.
This book does not only contain usefull information about the portlet API but also many interesting technologies that are usefull while developing its custom enterprise portal.
Here is the agenda :
Lucene
James (Mail Server)
Java Mail API
Jakarta Slide (WebDAV Content Management System)
Object Relational Bridge (OJB), with ODMG and JDO
Oasis Web Services Security (WSS)
Tomcat Security Realms
JSR 168 - Portlet API
SSL Security
Quality Assurance using Ant, Junit
Rational Unified Process
Extreme Programming (in the same chapter as RUP no less)
CRC Card Design
UML
Model 1, Model2, and Model2x Architectures (2X what's that? Um.. Model 2 with some extra XML I guess)
GoF Patterns (MVC, Memento, Adaptor, etc)
Web Services for Remote Portals
Javascript (An entire chapter)
eXo Portal Server/JBoss
SOAP, WDSL
CVS
Subversion
AntHill
JMeter
Scarab (Bug Tracking)
JMX
JSPWiki
Java Web Start