The ASF is made up of nearly 150 top level projects which cover a wide range of technologies. Chances are if you are looking for a rewarding experience in Open Source, you are going to find it here.
A Java Servlet and JavaServer Pages specifications implementation.
Apache Tomcat is a web server that is an open source software implementation of the Java Servlet and JavaServer Pages technologies. The Java Servlet and JavaServer Pages specifications are developed under the Java Community Process. Apache Tomcat is developed in an open and participatory environment and released under the Apache License version 2. Apache Tomcat is intended to be a collaboration of the best-of-breed developers from around the world. We invite you to participate in this open development project. Apache Tomcat powers numerous large-scale, mission-critical web applications across a diverse range of industries and organizations. Some of these users and...
Apache OFBiz (The Apache Open For Business Project) is an open source enterprise automation software project
Apache OFBiz (The Apache Open For Business Project) is an open source enterprise automation software project. By open source enterprise automation we mean: Open Source ERP, Open Source CRM, Open Source E-Business / E-Commerce, Open Source SCM, Open Source MRP, Open Source CMMS/EAM, and so on. It is one of the few apps of this type to be developed by a community, rather than one corporation.
DeltaSpike is a collection of portable Extensions for CDI Containers
Apache DeltaSpike is a portable JSR-299 CDI (Contexts and Dependency Injection for Java) Extension library which contains lots of useful tools and helpers which are missing in the CDI core spec. DeltaSpike is not a CDI-container itself, but a portable Extension library which can run on all CDI-containers! DeltaSpike is tested and runs on many Java EE Servers like Apache TomEE, Red Hat JBoss Application Server, JBoss Wildfly, Oracle WebLogic, Oracle Glassfish, IBM WebSphere, and also on simple Servlet containers like Apache Tomcat or Jetty in combination with either JBoss Weld or Apache OpenWebBeans.