Open Source

Hibernate - Relational Persistence for Java and .NET [Object-Relational Persistence]
Hibernate is a powerful, high performance object/relational persistence and query service. Hibernate lets you develop persistent classes following object-oriented idiom - including...
Nutch - an open-source web search engine [Search Engines]
Nutch is a nascent effort to implement an open-source web search engine. Web search is a basic requirement for internet navigation, yet the number of web search engines is decre...
Apache Lucene [Search Engines]
Apache Lucene is a high-performance, full-featured text search engine library written entirely in Java. It is a technology suitable for nearly any application that requires full-te...
Apache Velocity [Template Engines]
Velocity is a project of the Apache Software Foundation, charged with the creation and maintenance of open-source software related to the Apache Velocity Engine . All software crea...
Apache Struts [Web Frameworks]
Apache Struts is a free open-source framework for creating Java web applications. Web applications differ from conventional websites in that web applications can create a dynami...
Spring Framework [Web Frameworks]
Welcome to the home of the Spring Framework, the leading full-stack Java/JEE application framework. Led and sustained by Interface21, Spring delivers significant benefits for many ...
Apache Web Services Project [Web Services Tools]
Project List Axis (1.X) - an implementation of the Simple Object Access Protocol (SOAP). Axis2 - a redesign of Axis (1.X) supporting SOAP 1.2/SOAP1.2/REST/and more. WS-Com...
JDOM [XML Parsers]
We want to provide a solution for using XML from Java that is as simple as Java itself. There is no compelling reason for a Java API to manipulate XML to be complex, tricky, uni...
The Xerces Java Parser [XML Parsers]
The Xerces Java Parser 1.4.4 supports the XML 1.0 recommendation and contains advanced parser functionality, such as support for the W3C's XML Schema recommendation version 1.0 , D...
Apache Commons [Common Tools]
The Commons is an Apache project focused on all aspects of reusable Java components. The Apache Commons project is composed of three parts: The Commons Proper - A repository ...