The ASF is made up of more than 150 top level projects which cover a wide range of technologies. Chances are if you are looking for a rewarding experience in Open Source, you are going to find it here.
Set of user interface components based on JSF.
The goal of Tobago is to provide the community with a well designed set of user interface components based on JSF.
Java API To Access Microsoft Document File Formats
APIs for manipulating various file formats based upon Open Office XML (ECMA-376) and Microsoft's OLE 2 Compound Document formats using pure Java. Apache POI is your Java Excel, Word and PowerPoint solution. We have a complete API for porting other OOXML and OLE 2 Compound Document formats and welcome others to participate.
Taverna is a domain-independent suite of tools used to design and execute data-driven scientific workflows, combining WSDL/REST web services and local tools.
Taverna include the Workbench (desktop client application), the Command Line Tool (for a quick execution of workflows from a terminal), the Server (for remote execution of workflows) and the Player (Web interface plugin for submitting workflows for remote execution). The Taverna Platform gives OSGi-based programmatic access to the Taverna workflow engine.