I wasn't surprised that it's written in a JVM language, but I was surprised that that language is Java, not JetBrains' very own Kotlin...

▲

atraac 3 hours ago | parent | next [-]

Youtrack was made long before Kotlin so I suspect the rewrite just wasn't worth it

	▲	rob74 3 hours ago \| parent \| next [-]
		TIL - YouTrack was first released in 2009, Kotlin in 2011, so I wouldn't call it long before, but definitely before. Guess I'm more interested in programming languages than in task management tools, that's probably why I have been aware of Kotlin longer than of YouTrack...
	▲	Cthulhu_ 3 hours ago \| parent \| prev [-]
		Thing is, iirc Kotlin is mostly compatiable / interchangeable with Java so they could write any new code in Kotlin.

▲

mike_hearn 3 hours ago | parent | prev [-]

You can port files from Java to Kotlin by pressing a button, but Jetbrains has generally not done bulk ports. They leave it up to individual devs to convert a file when it's being worked on, if the diff and VCS history pollution is worth it.