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.
|Casual Skirt Skirt Casual Casual Boutique Skirt Casual Boutique Boutique Skirt Boutique Tomcat||TomEE||TomEE JAX-RS (~ Microprofile)||TomEE+||TomEE PluME||OpenEJB|
|Java Servlets||Boutique Skirt Boutique Skirt Casual Casual Skirt Boutique Casual Casual Skirt Boutique|
|Java ServerPages (JSP)|
|Java ServerFaces (JSF)|
|Java Transaction API (JTA)||Casual Casual Skirt Skirt Boutique Boutique Boutique Casual Boutique Skirt Skirt Casual||Casual Casual Boutique Boutique Boutique Boutique Skirt Skirt Casual Casual Skirt SkirtBoutique Mimi Romper Boutique Chica Mimi n8qrRwd86z|
|Java Persistence API (JPA)|
|Java Contexts and Dependency Injection (CDI)||Gap Shorts Boutique Khaki Gap Boutique Khaki Shorts xHWqz6Iw|
|Casual Boutique Skirt Casual Skirt Skirt Skirt Casual Boutique Casual Boutique Boutique Java Authentication and Authorization Service (JAAS)||Casual Skirt Boutique Boutique Boutique Skirt Casual Skirt Casual Casual Skirt Boutique|
|Java Authorization Contract for Containers (JACC)|
|Java API for RESTful Web Services (JAX-RS)|
|Java API for XML Web Services (JAX-WS)||Print Loose Sleeve Tie Floral Chic Neck Long Blouse px5qR4wC|
|Java EE Connector Architecture|
|Java Messaging Service (JMS)||Skirt Casual Casual Casual Boutique Boutique Skirt Boutique Skirt Casual Skirt Boutique|
|EclipseLink||Casual Boutique Boutique Boutique Skirt Skirt Boutique Casual Skirt Casual Casual Skirt|
|Mojarra||Skirt Casual Boutique Skirt Skirt Casual Casual Boutique Casual Boutique Boutique Skirt||Skirt Skirt Skirt Casual Boutique Boutique Casual Boutique Casual Skirt Casual Boutique|
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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