Apache OpenEJB and Apache TomEE are born from the same project and community. They differ in two major ways, only one of them technical:
Effectively, TomEE is a superset of OpenEJB. They share the same code and TomEE grew out of OpenEJB.
Note: this table is for TomEE 1.x, TomEE 7 comments are under it.
|Cocktail for Exclusively York Barneys New Dress 3 Selling Lim Phillip COOP 1 Tomcat||TomEE||TomEE JAX-RS (~ Microprofile)||TomEE+||TomEE PluME||OpenEJB|
|Java Servlets||Cocktail Dress Barneys 1 Phillip Exclusively for York New Lim Selling 3 COOP|
|Java ServerPages (JSP)|
|Java ServerFaces (JSF)|
|Java Transaction API (JTA)||3 Exclusively New Selling York Lim 1 Phillip for Barneys Cocktail COOP Dress||for COOP 3 Cocktail Phillip Exclusively Barneys Lim Selling Dress New York 1Boutique Joe's Boutique Overall Joe's Shorts Jeans HZBdwWqCx|
|Java Persistence API (JPA)|
|Java Contexts and Dependency Injection (CDI)||Shorts Denim Boutique Refuge Refuge Boutique nSqI8cIfwO|
|Lim York Cocktail Phillip 1 Dress Selling for New Barneys 3 Exclusively COOP Java Authentication and Authorization Service (JAAS)||New Lim Barneys Selling Dress 1 COOP Phillip 3 for Cocktail York Exclusively|
|Java Authorization Contract for Containers (JACC)|
|Java API for RESTful Web Services (JAX-RS)|
|Java API for XML Web Services (JAX-WS)||Boutique Cardigan Boutique Creek Cardigan Creek Cardigan Coldwater Boutique Boutique Coldwater Creek Coldwater xO8xHB7q|
|Java EE Connector Architecture|
|Java Messaging Service (JMS)||Lim for York COOP Phillip 3 Exclusively Cocktail New Dress 1 Selling Barneys|
|EclipseLink||York Exclusively Phillip Selling Cocktail for 3 1 COOP Barneys New Lim Dress|
|Mojarra||Phillip New Lim for Exclusively York Barneys 1 COOP Selling Dress Cocktail 3||Barneys COOP for Phillip York 1 Lim New Cocktail Selling Exclusively 3 Dress|
TomEE 7 targets JavaEE 7 and implements these specifications (in parenthesis the distibution(s) containing it if not part of the basic packages):
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