Hi Florian, Fair enough. I've been a developer for over twenty years and thinking about various production environments I suppose the ones I know of are still at Java 6. Our current Neocortext project has been Java 7 for awhile, but I can probably backtrack the Java 7 features in the EntityManager for JSPWiki without too much difficulty. Frustrating, yes, but doable.
Cheers, Ichiro