Java gained 4.29% on popularity in one year and now Java is leading again the Tiobe programming language index. Seems like Java is not only hot on github... Also an interesting observation:
"[...]Surprisingly or may be not, Java is consuming a large part of the market share that Objective-C is losing, while Objective-C's successor Swift was supposed to do this [...]"From: [Tiobe Index for August 2015]
Big thanks to Samuel Santos @samaxes for the hint.
NEW MUC Airport Workshop: Migrating Java Client (Swing / Java FX) to Web Standards