Apache Geronimo is an easy-to-use implementation of the Java 2 Platform, Enterprise Edition (J2EE). As a full application server, Geronimo provides support for Java Servlet and JavaServer Pages through either Tomcat or Jetty, JMS through ActiveMQ, EJB through OpenEJB, Java Persistence API through OpenJPA, ESB through ServiceMix, and more. It is also combined with enterprise grade configuration and management. Geronimo 1.1.1 has passed the J2EE certification test suite and it is officially J2EE certified.
Hermes JMS Browser is a Java/Swing application for interacting with and monitoring queues/topics. In addition to normal JMS functionality, it supports plugins for gaining access to provider administrative functionality. This could be used to efficiently query queue depths. It is especially useful when dealing with a very mixed environment of messaging providers and need a single tool to interact and monitor them all.
Oness is an ERP, CRM, SRM, and inventory management solution primarily supporting the textile commerce. It is based on J2EE technologies such as Spring, Hibernate, Struts, XDoclet, AspectJ, and Maven with a JSP-based Web interface. It is completely modular and thoroughly documented.
Rasqal is a C library for querying RDF graphs, supporting the SPARQL, RDQL, and LAQRS languages. It provides APIs for creating a query and parsing query syntax. It features pluggable triple-stores and matching interfaces, query engines for executing the queries, an API for manipulating results as bindings, and multiple ways to format the results to XML, CSV, TSV, and JSON. It uses the Raptor RDF parser to return triples from RDF content, and can alternatively work with the Redland RDF library's persistent triple stores. It is portable across many POSIX systems.
FreeSB is a (service oriented) alternative to hub-and-spoke messaging, enabling new and legacy systems to plug in to the bus and communicate with other systems on it, thus providing loosely-coupled application integration. FreeSB is currently implemented in Java but ESB clients should be implementable in other languages (Python, .Net, etc.).
Roundhouse is a modular J2EE application platform that allows applications to combine Struts modules, JSR-168 portlets, and Web services into a single application. It is intended to take the drudgery out of new J2EE application development by providing existing user and security architecture, navigation, and logging although it can be used standalone with no additional development. It ships with forum and blog modules along with several handy portlets which essentially make it a a portal based blog and forums application. The architecture is Struts-based and includes a Struts-based JSR-168 Portlet container. Developers extend Roundhouse by creating new standalone modules which can be independently developed without mucking around in the Roundhouse codebase and merged with Roundhouse and any number of other modules at build time. Modules can be created, packaged as MARF files, and redistributed.
Apache Rivet is a system for creating dynamic Web content via a programming language integrated with Apache Web Server. It is designed to be fast, powerful and extensible, consume few system resources, be easy to learn, and to provide the user with a platform that can also be used for other programming tasks outside the web (GUIs, system administration tasks, text processing, database manipulation, XML, etc.). It is similar to PHP, except that it uses Tcl, and provides both HTML/Tcl pages as well as pure Tcl pages to aid the programmer in separating logic and presentation when necessary.