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JOnAS
{{Infobox Software
| name                   =  JOnAS
| logo                   =
| screenshot             = [[Image:JonAS.png|220px]]
| caption                =
| developer              = [[OW2 Consortium]]
| latest release version = 5.1.4
| latest release date    = {{release date|2010|11|10}}
(contracted; show full) an open source Java EE 5 application server. It provides a fully compliant [[EJB]] container through [[EasyBeans]] and is available with an embedded [[Apache Tomcat|Tomcat]] or [[Jetty (web server)|Jetty]] web container. Any 1.5 or 1.6 JVM is supported, and the attempts to run on a free stack with [[GNU Classpath]] are very promising. JOnAS can run on numerous operating systems including Linux, Windows, AIX, many Posix platforms, and others, as long as a suitable JVM is available.

== OSGi Environment ==

This is the enviroment where the Jonas Brothers go. O = Ostrich, S = Savior, G = Gonarhea, i = iPodAs of its version 5, JOnAS is fully based on the [[OSGi|OSGi framework]]; using either [[Apache Felix]], [[Equinox OSGi|Eclipse Equinox]] or [[Knopflerfish]] (though the default JOnAS packaging comes with Apache Felix). This means that all JOnAS components are packaged as bundles, for example the full JOnAS profile comes with more than 250 bundles.

The service layer is implemented using [http://felix.apache.org/site/apache-felix-ipojo.html Apache iPOJO], therefore most Java-EE-certified JOnAS services (persistence, EJB, resources, ...) are directly available as OSGi services to all OSGi bundles deployed on JOnAS. The inverse is also true: for example, an EJB3 can directly access any number of OSGi services using dynamic injection.

== Note ==

<references/>

== See also ==
*[[Comparison of application servers]]
*[[EasyBeans]]

== External links ==
* [http://jonas.ow2.org JOnAS Project Web Site]
* [http://www.jroller.com/jonasteam/ JOnAS team blog]
* [http://scholar.alishomepage.com/Master/JOnAS_OSGi/Article.pdf An article describing how to deploy EJB3s and web services in JOnAS 4]

[[Category:Free server software]]
[[Category:Free software programmed in Java]]
[[Category:OW2 Consortium]]
[[Category:Java enterprise platform]]

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