I'd probably be more willing to dive in with Kotlin if there were a reliable way of translating back to passable Java. In other words, an escape hatch in case i

I'd probably be more willing to dive in with Kotlin if there were a reliable way of translating back to passable Java. In other words, an escape hatch in case it doesn't work out, or the use of a not-Java language causes too much trouble with other employees down the road. I'm not sure how feasible that is but many features seem to have fairly direct translations. For others like co-routines I'd be willing to put up with the Java project depending on a Kotlin runtime jar.