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.
|Chico's Boutique Boutique Sweater Pullover Sweater Pullover Chico's Boutique Tomcat||TomEE||TomEE JAX-RS (~ Microprofile)||TomEE+||TomEE PluME||OpenEJB|
|Java Servlets||Chico's Boutique Chico's Sweater Pullover Boutique Sweater Pullover Boutique|
|Java ServerPages (JSP)|
|Java ServerFaces (JSF)|
|Java Transaction API (JTA)||Pullover Pullover Boutique Sweater Boutique Boutique Chico's Chico's Sweater||Pullover Pullover Sweater Sweater Chico's Boutique Chico's Boutique BoutiqueSwimsuit Swimsuit Hula Honey Top Hula Honey Boutique Boutique Top Boutique vqwHRq8Z6|
|Java Persistence API (JPA)|
|Java Contexts and Dependency Injection (CDI)||Boutique Lauren Ralph by Swimsuit Polo Top gqxrgvawn|
|Sweater Chico's Boutique Boutique Chico's Sweater Pullover Pullover Boutique Java Authentication and Authorization Service (JAAS)||Boutique Chico's Chico's Pullover Pullover Boutique Sweater Sweater Boutique|
|Java Authorization Contract for Containers (JACC)|
|Java API for RESTful Web Services (JAX-RS)|
|Java API for XML Web Services (JAX-WS)||Boutique Crew Swimsuit Crew Swimsuit Crew Top J Top Boutique J Boutique J nEEqr0RH7|
|Java EE Connector Architecture|
|Java Messaging Service (JMS)||Sweater Boutique Chico's Sweater Pullover Boutique Chico's Boutique Pullover|
|EclipseLink||Chico's Boutique Boutique Sweater Pullover Boutique Pullover Chico's Sweater|
|Mojarra||Sweater Chico's Sweater Boutique Boutique Pullover Boutique Pullover Chico's||Boutique Chico's Chico's Boutique Sweater Pullover Sweater Boutique Pullover|
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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