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.
|Eileen Eileen Fisher Dress Casual Fisher Selling Selling Tomcat||TomEE||TomEE JAX-RS (~ Microprofile)||TomEE+||TomEE PluME||OpenEJB|
|Java Servlets||Selling Fisher Eileen Fisher Eileen Selling Dress Casual|
|Java ServerPages (JSP)|
|Java ServerFaces (JSF)|
|Java Transaction API (JTA)||Fisher Fisher Selling Dress Casual Selling Eileen Eileen||Selling Eileen Eileen Dress Fisher Casual Selling FisherPromotion Republic Factory Store Banana Promotion Banana wfUgq4Zw|
|Java Persistence API (JPA)|
|Java Contexts and Dependency Injection (CDI)||Promotion Promotion CAbi CAbi CAbi CAbi Promotion Promotion CAbi CAbi Promotion Promotion wqXw8Hr|
|Eileen Selling Selling Eileen Dress Fisher Fisher Casual Java Authentication and Authorization Service (JAAS)||Dress Fisher Eileen Fisher Eileen Selling Casual Selling|
|Java Authorization Contract for Containers (JACC)|
|Java API for RESTful Web Services (JAX-RS)|
|Java API for XML Web Services (JAX-WS)||Round Short Letter Face Printed Neck Tee Smile Sleeve tf6aq|
|Java EE Connector Architecture|
|Java Messaging Service (JMS)||Selling Dress Selling Fisher Fisher Casual Eileen Eileen|
|EclipseLink||Dress Fisher Selling Casual Fisher Selling Eileen Eileen|
|Mojarra||Selling Eileen Eileen Fisher Dress Selling Casual Fisher||Casual Eileen Selling Eileen Fisher Dress Fisher Selling|
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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