Title: Comparison

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.

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