Basically yes, the Java based API (Plugin API) is already available
Currently Lua is still supported for reasons of compatibility. Even though we want to discard the Lua API as soon as possible (on the one hand to increase the server performance, on the other hand to clean up the code), we don't want to break anything. Many servers still rely on Lua scripts, there aren't enough plugins available to fully replace all Lua scripts yet (also the API itself is still missing some important features).
Of course you can still use the Lua scripts for your server, for example. It'll take some time until Lua is no longer supported. But if you want to start working with the Lua API, I highly recommend to stay away from it, sooner or later it will be fully removed. In this case it's much more preferable to deal with the Plugin API instead
Ich persönlich finde es schade, dass Lua irgendwann nicht mehr unterstützt wird. Ich kann die Entscheidung jedoch voll verstehen, dass man nicht beides pflegen will.
Lua finde ich sehr praktisch um etwas schnell zu scripten um zu testen ... nur die "schnell mal Lösungen" bleiben meistens 
D.h. wieder mit JAVA befassen 
und Plugin API zu Favoriten hinzufügen
danke 
