= Comparison
:index-group: General Information
:jbake-date: 2018-12-05
:jbake-type: page
:jbake-status: published


Apache OpenEJB and Apache TomEE are born from the same project and
community. They differ in two major ways, only one of them technical:

* TomEE incorporates two additional projects; Tomcat and MyFaces
* TomEE, as a name, more easily implies the breadth of technologies
included

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.

Tomcat

TomEE

TomEE JAX-RS (~ Microprofile)

TomEE+

TomEE PluME

OpenEJB

Java Servlets

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Java ServerPages (JSP)

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Java ServerFaces (JSF)

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Java Transaction API (JTA)

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Java Persistence API (JPA)

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Java Contexts and Dependency Injection (CDI)

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Java Authentication and Authorization Service (JAAS)

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Java Authorization Contract for Containers (JACC)

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JavaMail API

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Bean Validation

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Enterprise JavaBeans

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Java API for RESTful Web Services (JAX-RS)

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Java API for XML Web Services (JAX-WS)

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Java EE Connector Architecture

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Java Messaging Service (JMS)

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EclipseLink

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Mojarra

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TomEE 7 targets JavaEE 7 and implements these specifications (in
parenthesis the distibution(s) containing it if not part of the basic
packages):

* WebSocket JSR 356
* JSON-P JSR 353
* Servlet 3.1 JSR 340
* JSF 2.2 JSR 344
* EL 3.0 JSR 341
* JSP 2.3 JSR 245
* JSTL 1.2 JSR 52
* JBatch (plus) JSR 352
* Concurrency utilities for EE JSR 236
* CDI 1.2, DI, Interceptors 1.2, Common Annotations JSR 346 + JSR 330 +
JSR 318 + JSR 250
* Bean Validation 1.1 JSR 349
* EJB 3.2 JSR 345
* JavaEE Connector JSR 322
* JPA 2.1 JSR 338 (WARNING: openjpa based distributions provide a JPA
2.0 runtime)
* JMS 2.0 JSR 343 (layer based on ActiveMQ 5 / JMS 1.1 for default
distributions)
* JTA 1.2 JSR 907
* Javamail 1.4 (NOTE: EE 7 requires 1.5)
* JAX-RS 2.0 JSR 339
* JAX-WS 2.2 JSR 224
* JAXB 2.2 JSR 222
* and more inherited from TomEE 1/JavaEE 6