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.
|Round Embroidered Tee Cat Sleeve Striped Short Neck Tomcat||TomEE||TomEE JAX-RS (~ Microprofile)||TomEE+||TomEE PluME||OpenEJB|
|Java Servlets||Cat Embroidered Striped Round Tee Sleeve Short Neck|
|Java ServerPages (JSP)|
|Java ServerFaces (JSF)|
|Java Transaction API (JTA)||Sleeve Neck Round Embroidered Short Tee Striped Cat||Cat Tee Sleeve Embroidered Round Striped Short NeckBoutique Turtleneck Boutique Banana Turtleneck Sweater Banana Republic Boutique Sweater Turtleneck Banana Republic Sweater Republic wzHHAqZa|
|Java Persistence API (JPA)|
|Java Contexts and Dependency Injection (CDI)||Boutique Christopher Banks Cardigan Boutique amp; Cardigan Banks Boutique Christopher amp; 64qxwITPp|
|Round Striped Sleeve Embroidered Cat Neck Tee Short Java Authentication and Authorization Service (JAAS)||Round Sleeve Tee Neck Striped Short Embroidered Cat|
|Java Authorization Contract for Containers (JACC)|
|Java API for RESTful Web Services (JAX-RS)|
|Java API for XML Web Services (JAX-WS)||Divine Rights Divine Denim Promotion of Denim Promotion of Rights Promotion xngYq4O|
|Java EE Connector Architecture|
|Java Messaging Service (JMS)||Sleeve Striped Round Cat Short Embroidered Tee Neck|
|EclipseLink||Embroidered Tee Sleeve Neck Round Cat Short Striped|
|Mojarra||Neck Round Tee Short Cat Embroidered Striped Sleeve||Striped Embroidered Neck Sleeve Cat Tee Round Short|
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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