The Jackrabbit Project has been formed to develop an open source implementation of the Content Repository for Java Technology API (JCR), being specified within the Java Community Process as JSR-170. Jackrabbit is hosted by the Apache Software Foundation, where it successfully graduated from incubation to a Top Level Project. Open source refers to projects that are open to the public and which draw on other projects that are freely available to the general public. ... Java is an object-oriented programming language developed by James Gosling and colleagues at Sun Microsystems in the early 1990s. ... The Java Community Process or JCP, established in 1995, is a formalized process which allows interested parties to be involved in the definition of future versions and features of the Java platform. ... The Apache Software Foundation (ASF) is a non-profit corporation (classified as 501(c)3 in the United States) to support Apache software projects, including the Apache HTTP Server. ... Apache Incubator is the gateway for projects hoping to become fully fledged Apache Software Foundation projects. ...
JCR specifies an API for application developers (and application frameworks) to use for interaction with modern content repositories that provide content services such as searching, versioning, transactions, etc.