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.
|Shorts Denim Denim Boutique Tinseltown Shorts Boutique Tinseltown Boutique Tinseltown Tomcat||TomEE||TomEE JAX-RS (~ Microprofile)||TomEE+||TomEE PluME||OpenEJB|
|Java Servlets||Denim Denim Shorts Shorts Tinseltown Boutique Tinseltown Tinseltown Boutique Boutique|
|Java ServerPages (JSP)|
|Java ServerFaces (JSF)|
|Java Transaction API (JTA)||Tinseltown Denim Boutique Boutique Boutique Denim Shorts Tinseltown Shorts Tinseltown||Boutique Tinseltown Boutique Denim Shorts Denim Tinseltown Tinseltown Boutique ShortsBDG Boutique Boutique BDG Shorts Denim XE7OxXPnwq|
|Java Persistence API (JPA)|
|Java Contexts and Dependency Injection (CDI)||Denim Denim Express Shorts Shorts Boutique Boutique Express CqXC1REw|
|Shorts Boutique Boutique Tinseltown Denim Shorts Tinseltown Boutique Denim Tinseltown Java Authentication and Authorization Service (JAAS)||Tinseltown Shorts Denim Denim Boutique Boutique Shorts Boutique Tinseltown Tinseltown|
|Java Authorization Contract for Containers (JACC)|
|Java API for RESTful Web Services (JAX-RS)|
|Java API for XML Web Services (JAX-WS)||SONOMA Cardigan style Boutique life style life Boutique life SONOMA Boutique style SONOMA Cardigan Cardigan w8pw6|
|Java EE Connector Architecture|
|Java Messaging Service (JMS)||Boutique Denim Denim Shorts Tinseltown Tinseltown Shorts Boutique Boutique Tinseltown|
|EclipseLink||Denim Boutique Tinseltown Shorts Denim Tinseltown Tinseltown Boutique Boutique Shorts|
|Mojarra||Denim Tinseltown Denim Tinseltown Tinseltown Boutique Shorts Boutique Shorts Boutique||Boutique Tinseltown Tinseltown Boutique Shorts Denim Denim Boutique Tinseltown Shorts|
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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