Apache Software Foundation projects

blog server written in Java

open source mail server

open source OSGi framework by Apache Software Foundation

columnar data analytics framework

Java security framework that performs authentication, authorization, cryptography, and session management

open-source software framework

package management software

Open Source Java framework for object relational mapping (ORM), persistence, and caching

open-source distributed stream processing

implementation of the Content Repository for Java Technology API (JCR)

open source semantic web framework for Java

content detection and analysis framework

Blueprint container software

event processor software

open-source implementation of Java Persistence API

open-source PDF library

open source software

software for presenting, online training, web conferencing, etc.