||This article has multiple issues. Please help improve it or discuss these issues on the talk page.
|Stable release||7.1.1.Final / March 9, 2012|
|License||GNU Lesser General Public License|
The renaming to WildFly was done to reduce confusion. The renaming only affects the JBoss Application Server project. The JBoss Community or the Red Hat JBoss product line (with JBoss Enteprise Application Platform) all retain their names.
In 1999, Marc Fleury started a free software project named EJB-OSS (stands for Enterprise Java Bean Open Source Software) implementing the EJB API from J2EE (Java 2 Enterprise Edition). Sun Microsystems asked the project to stop using the EJB trademark within its name. EJB-OSS was then renamed to JBOSS, then JBoss later. .
JBoss AS 4.0, a Java EE 1.4 application server, features an embedded Apache Tomcat 5.5 servlet container. It supports any Java Virtual Machine (JVM) between versions 1.4 and 1.6. JBoss can run on numerous operating systems including many POSIX platforms (like GNU/Linux, FreeBSD and Mac OS X), Microsoft Windows and others, as long as a suitable JVM is present.
JBoss AS 5.1, released in 2009, operates as a Java EE 5 application server. It is a minor update of the major release JBoss AS 5.0, which was in development for at least three years and was built on top of a new JBoss microcontainer. JBoss AS 5.1 contains a preview of some elements from the Java EE 6 specification.
JBoss AS 6.0, an unofficial implementation of Java EE 6, was released on December 28, 2010. Although JBoss AS 6 does not support the full Java EE 6 stack, it chose not to support this officially by obtaining an official certification from Oracle. It does, however, officially support the Java EE 6 Web Profile.
JBoss AS 7, was released on July 12, 2011, only six months after the last major release, JBoss AS 6. Unlike previous increments of the major versioning number, JBoss AS 7 supports the same Java EE specification as the last major release, namely Java EE 6. The Java EE profile is only partially implemented in JBoss AS 7, e.g. it includes MDBs, but listening to JMS destinations (which is mandated by the full spec) is not supported. It is, however, certified for the Web Profile. The software code has been completely rewritten for JBoss AS 7. Major changes visible to the user are the inability to define resources like JMS destinations and datasources inside archives (war/ear), the way datasources are defined, a much smaller size (less than half of JBoss AS 6) and a 10-fold reduction in startup time.
JBoss AS 7.1, the current stable version, was released in February 2012. The remaining parts of the EE spec were implemented, and this version was certified for the EE full profile.
WildFly 8 is the direct continuation to the JBoss AS project.
Product features 
- Aspect-oriented programming (AOP) support
- Deployment API
- Distributed caching (using JBoss Cache, a standalone product)
- Distributed deployment (farming)
- Enterprise JavaBeans versions 3 and 2.1
- Failover (including sessions)
- Hibernate integration (for persistence programming; Java Persistence API or JPA)
- Java Authentication and Authorization Service (JAAS)
- Java EE Connector Architecture (JCA) integration
- Java Management Extensions
- Java Message Service (JMS) integration
- Java Naming and Directory Interface (JNDI)
- Java Transaction API (JTA)
- Java Authorization Contract for Containers (JACC) integration
- Java Server Faces 1.2 (Mojarra)
- Java Server Pages (JSP) / Java Servlet 2.1/2.5 (Tomcat)
- JBossWS (JBoss Web Services) for Java EE web services like JAX-WS
- Load balancing
- Management API
- OSGi framework
- RMI-IIOP (JacORB, contraction of Java and CORBA)
- SOAP with Attachments API for Java (SAAJ)
- Teiid data virtualization system
Licensing and pricing 
JBoss itself is open source, but Red Hat charges to provide a support subscription for JBoss Enterprise Middleware. Before November 2010 JBoss was licensed as annual subscription in bundles of 4 and 32 CPU sockets. As of November 2010 the licensing changed and all cores on the system are now counted. The core bundles licensing is available for 16 and 64 cores.
See also 
- Comparison of application servers
- JBoss Enterprise Application Platform
- List of JBoss software
- Apache TomEE
- Apache Geronimo
- IBM WebSphere Application Server
- JOnAS application server
- Oracle WebLogic Server
- "JBoss Application Server downloads".
- "JBoss Application Server has a new name... WildFly". Retrieved 2013-04-23.
- "Frequently Asked Questions About WildFly". Retrieved 2013-04-23.
- Jamae, Javid; Johnson, Peter (2009-01-20). "1.1 Introducing JBoss". JBoss in Action: Configuring the JBoss Application Server. Manning Publications. p. 4. ISBN 978-1-933988-02-3. Retrieved 2011-12-01.
- "JBossAS 5.0.0.GA Released". 2008-12-05.
- "JBoss 5.1.0.GA Release Notes". 2009-05-23.
- "Home / JBoss / 6.0.0.Final". JBoss Community. 2010-12-28.
- How to create and manage datasources in AS7
- JBoss Application Server 7.
- "JBOSS NA Channel SKUs: Production Subscription SKUs". Red Hat.
- Marrs, Tom; Davis, Scott (July 1, 2009). JBoss At Work: A Practical Guide. O'Reilly. p. 306. ISBN 0596007345.
- Jamae, Javid; Johnson, Peter (January 28, 2010). JBoss in Action: Configuring the JBoss Application Server. Manning Publications. p. 496. ISBN 1933988029.
- Stark, Scott; Fleury, Marc; Richards, Norman (April 30, 2005). JBoss 4.0 The Official Guide. Sams. p. 648. ISBN 9780672326486.