Languages:
JAVA, JSP

Frameworks:
J2EE, Struts, Hibernate, Spring, JSF, AspectJ, Lucene, Velocity, Tapestry

Application Servers:
Web logic, Web Sphere, JBoss, Oracle Application Server, Apache

IDE:
WSAD, Eclipse, JBuilder, NetBeans

Messaging Servers:
ActiveMQ, JMS

Caching:
memcached, OSCache

CMS:
Alfresco, dotCMS

Configuration Management:
Ant, Maven, Cruise Control, CVS, SVN

Reports:
Jasper Reports, BIRT

Testing:
JUnit