SAP NetWeaver Cloud
Application Server is Java EE 6 Web Profile Certified. All major application servers are supporting Java EE 6 now (compatibility list).
It seems like you can get the developer license in 5 minutes.
NEW online workshop: WebStandards Igniter (online)
Airport MUC workshops: Java EE 7: Bootstrap, Effective, Architectures, Web, React and Angular, Testing and Microservices
Podcast: airhacks.fm and newsletter: airhacks.news
A book about rethinking Java EE Patterns