1.2. Components

JBoss Enterprise Web Server consists of the following components:

Apache Tomcat is a servlet container in accordance with Java Servlet Specification. JBoss Enterprise Web Server contains Apache Tomcat 6 and Apache Tomcat 7.
Apache Native is a Tomcat library, which improves Tomcat scalability, performance, and integration with native server technologies. It also contains an implementation of APR (Apache Portable Runtime). APR is a binary protocol for communication of Apache HTTP Server and Apache Tomcat.
Apache Tomcat Connectors (mod_jk, mod_cluster) are connectors between Apache HTTP Server and Apache Tomcat. Note that mod_cluster is a JBoss native load balancer and is more efficient, reliable, and scalable than mod_jk.
Apache HTTP Server is an open-source web server developed by the Apache Software Foundation. The implementation follows the current HTTP standards.
Note
The delivered Apache HTTP Server by default provides the support for the Secure Socket Layer (SSL) protocol. To remove it, see the section on removing SSL for your installation.
Hibernate is an object-relational mapping framework. The delivered Hibernate contains Hibernate Core, Hibernate Annotations, Hibernate EntityManager with JPA 1.0 APIs.

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