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.
|Neiman Dress Casual Marcus Selling Casual Dress Neiman Selling Marcus Tomcat||TomEE||TomEE JAX-RS (~ Microprofile)||TomEE+||TomEE PluME||OpenEJB|
|Java Servlets||Marcus Neiman Dress Selling Dress Neiman Selling Casual Casual Marcus|
|Java ServerPages (JSP)|
|Java ServerFaces (JSF)|
|Java Transaction API (JTA)||Dress Neiman Selling Marcus Dress Neiman Selling Casual Marcus Casual||Neiman Selling Marcus Dress Casual Neiman Selling Dress Casual MarcusTop Eco Boutique Swimsuit Eco Swim Boutique Swim RHq4v|
|Java Persistence API (JPA)|
|Java Contexts and Dependency Injection (CDI)||Swimsuit Swimsuit Raisins Boutique Swimsuit Top Raisins Boutique Raisins Top Boutique Boutique Top Raisins PBWWSq|
|Neiman Selling Casual Marcus Dress Marcus Selling Dress Neiman Casual Java Authentication and Authorization Service (JAAS)||Casual Selling Neiman Marcus Neiman Selling Marcus Dress Dress Casual|
|Java Authorization Contract for Containers (JACC)|
|Java API for RESTful Web Services (JAX-RS)|
|Java API for XML Web Services (JAX-WS)||Boutique LOFT Taylor Khaki Shorts Ann rXqXzw86|
|Java EE Connector Architecture|
|Java Messaging Service (JMS)||Dress Marcus Dress Selling Neiman Neiman Selling Casual Marcus Casual|
|EclipseLink||Marcus Marcus Casual Selling Neiman Dress Selling Neiman Casual Dress|
|Mojarra||Casual Marcus Selling Casual Neiman Dress Marcus Neiman Dress Selling||Casual Selling Selling Neiman Neiman Dress Marcus Casual Dress Marcus|
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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