Java
Used by 21 peoplejava.com ↗

“I still stubbornly use it even when working in Java or other environments with strong IDEs — there are too many keybindings burned too deep into my psyche.”
Nelson Elhage Interview, Software developer (Stripe) · via Uses This 
“Java has an older style, but I sometimes use it to leverage the JVM (especially its garbage collector) and the multithread libraries.”
Sadayuki Furuhashi Interview, Hacker (MessagePack, Fluentd) · via Uses This 
“Most of the software I write is in Java and usually meant to run in servers.”
Dhanji Prasanna Interview, Hacker, ex-Googler (Wave, Plus, Search) · via Uses This