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.
|Mini Neck Plaid New Short Sleeve Round Stylish Dress Print Tomcat||TomEE||TomEE JAX-RS (~ Microprofile)||TomEE+||TomEE PluME||OpenEJB|
|Java Servlets||Neck New Mini Dress Round Sleeve Stylish Print Plaid Short|
|Java ServerPages (JSP)|
|Java ServerFaces (JSF)|
|Java Transaction API (JTA)||Short Mini Print Round Dress Plaid Neck New Sleeve Stylish||Sleeve Stylish Plaid Round Mini Short Neck Print New DressDetail Mini Neck Sexy Open Plain Back Lace Dress Bodycon Panel Lace up Plunge xI5r5qP|
|Java Persistence API (JPA)|
|Java Contexts and Dependency Injection (CDI)||Collar Swing Paw Necktie Color Block Navy Dress Girlish Bear Mini Embroidered UFtqw8|
|Neck Round Plaid New Stylish Print Mini Sleeve Short Dress Java Authentication and Authorization Service (JAAS)||Neck New Sleeve Mini Stylish Print Round Short Dress Plaid|
|Java Authorization Contract for Containers (JACC)|
|Java API for RESTful Web Services (JAX-RS)|
|Java API for XML Web Services (JAX-WS)||Boutique Shorts Taylor LOFT Ann Khaki zZq8p|
|Java EE Connector Architecture|
|Java Messaging Service (JMS)||Print Sleeve Mini Dress Neck Short Stylish Plaid Round New|
|EclipseLink||Sleeve Plaid Mini Neck Short Stylish Round New Print Dress|
|Mojarra||Neck Mini Plaid New Stylish Sleeve Dress Round Print Short||New Stylish Mini Neck Plaid Dress Sleeve Print 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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