Here is a list of some of the Open Source Software that I actively support, by either answering questions, submitting patches, evangelizing, or providing documentation.

• Maven - a project management tool
• Torque - an Object/Relational Mapping Tool
• Hibernate - another Object/Relational Mapping Tool
• Jetty - a very nice Servlet container
• Turbine - a Web application framework
• Velocity - a general templating engine
• WebOGNL - a component Web application framework