eContent is a Web-based content management system for creating information systems, intranets, B2B, B2C, catalogs, and vertical portals. Written in Java for scalability, and based on open standards Struts and Expresso for stability, eContent integrates content management, scalable content and application delivery, resource management, workflow and personalization. It supports executables, all documents types, OLAP reports, Java programs, and legacy integration.
JGraphpad Pro is a complete application framework for rapid development of JGraph tools. It is meant for developers who wish to provide a stand-alone, rich-client graph application. The user interface is configurable with XML, and it uses a plugin architecture for extra functionality. It features a wide range of application components like palette, overview, the ability to export to many image and XML formats, copy and paste, drag and drop, rich text labels, database or backend connectivity, and visual complexity management. You can use it to create workflow editors, call graphs, CAD tools, network diagrams, database visualization tools, and more.
Plone is a content management system that is simple to set up, maintain, and modify. It is designed to be a corporate-ready content management system. It is ideal as an intranet and extranet server, as a document/Web publishing system, and as a groupware tool for collaboration between separately located entities. It aims to be a proper content management and publishing system, sharing the same qualities as Teamsite, Livelink, and Documentum.
Babeldoc is a framework and set of applications to process documents for business-to-business and other Internet/integration applications. It is primarily intended for text documents, especially XML, but supports a wide range of operations and data types. It has a sophisticated journaling system that supports replaying and reprocessing. Babeldoc is pipeline based and supports numerous ways to combine the pipeline stages in a dynamically reconfigurable fashion. It has a GUI and a Web-based console for document processing and monitoring, and comes with tools for the tranformation of flatfile data to XML, archival, and cryptography. Additionally it is able to scan various data sources based on sophisticated constraints.
Copper is a Web-based project management software tool designed to help creative teams manage clients, projects, tasks, files, budgets, and events. It has an HTML/AJAX front end. It is available with full source for a licence fee or as a SAAS hosted service (compatible with iPhone, but available via PC/Mac/Linux and a Web browser).
Interleave is a Web-enabled business process automation application. It enables you to model your business process like purchasing, project management, and contract management and make it available online. It's meant to replace processes which currently rely on paper, email, or spreadsheets and it has a very good workflow engine. You can create invoices, export to RTF and PDF based on templates, export to MS Excel, interpret incoming email, and publish your data to the Web.
Taverna is a collection of workflow enactment and description components, including a high level language for workflows called Scufl (Simple Conceptual Unified Flow Language), a pure Java object model, parser to populate the model, and a set of views and controllers (including some Swing components to drop into your workflow-enabled applications). In order to actually run workflows you also need the myGrid workflow enactment engine.
BIE (Business Integration Engine) is an open source integration system that makes it easy for organizations to exchange data with external trading partners regardless of their native applications. It competes in the same space as applications like Microsoft BizTalk except that it is truly cross-platform since it written in Java.