I have build applications with J2EE technologies

Middleware

Spring, EJB3.0, JPA, Hibernate, Toplink, JDO

Presentation

Wicket, Struts, Volocity, Freemarker, JSP, Applets, AJAX

Tools

I use Eclipse, SVN, CVS, Maven2, Ant etc.

Servers

JBOSS application server and Tomcat

Test framework

Cactus, JUnit, TestNG