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: Web Components training (online)
Airport MUC workshops: Java EE 8, Java 9: Bootstrap, Effective, Architectures, Single Page Apps, Progressive Web Apps, HTML 5, ES 6, CSS 3 and Microservices
Podcast: airhacks.fm and newsletter: airhacks.news
A book about rethinking Java EE Patterns