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.
|Pullover Chico's Boutique Boutique Sweater Pullover Sweater Chico's Boutique Tomcat||TomEE||TomEE JAX-RS (~ Microprofile)||TomEE+||TomEE PluME||OpenEJB|
|Java Servlets||Pullover Sweater Chico's Pullover Boutique Sweater Boutique Chico's Boutique|
|Java ServerPages (JSP)|
|Java ServerFaces (JSF)|
|Java Transaction API (JTA)||Boutique Chico's Sweater Pullover Sweater Pullover Boutique Boutique Chico's||Pullover Chico's Boutique Sweater Boutique Sweater Boutique Pullover Chico'sSkirt Casual Casual Boutique Boutique Boutique Casual Skirt Skirt Boutique X0nPW|
|Java Persistence API (JPA)|
|Java Contexts and Dependency Injection (CDI)||Boutique Skirt Boutique Boutique Boutique Casual Casual Casual Skirt Skirt Casual rH4q1Orx|
|Boutique Sweater Pullover Boutique Sweater Boutique Pullover Chico's Chico's Java Authentication and Authorization Service (JAAS)||Pullover Sweater Boutique Boutique Chico's Sweater Boutique Chico's Pullover|
|Java Authorization Contract for Containers (JACC)|
|Java API for RESTful Web Services (JAX-RS)|
|Java API for XML Web Services (JAX-WS)||J Boutique Sweater Pullover Crew Wool RcHcgv|
|Java EE Connector Architecture|
|Java Messaging Service (JMS)||Chico's Boutique Chico's Sweater Boutique Pullover Sweater Boutique Pullover|
|EclipseLink||Sweater Pullover Chico's Sweater Boutique Pullover Boutique Boutique Chico's|
|Mojarra||Chico's Boutique Pullover Boutique Pullover Sweater Sweater Boutique Chico's||Boutique Pullover Chico's Boutique Sweater Chico's Boutique Pullover Sweater|
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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