A modern programming language that makes developers happier.

kotlinlang

2 - Unpopular amongst end users: if you write a Swing app that uses an old-looking skin and splat the Java logo everywhere then sure, because years ago every geek was telling their family "Java and Flash are insecure! Turn them off!". But there's a simple fix for that, just don't brand things as Java. There are actually some quite successful desktop apps that run on the JVM and they simply don't mention that fact anywhere, after all, why should they? Look at Minecraft, or Esoteric Software's Spine software.