That's why I think Kotlin is going to clean up. It's a language specifically designed to be commercially successful by providing you with a better Java. For instance this line of code:

  data class Person(var name: String, val age: Int)

compiles down to a JavaBean with getName/setName type methods, a getAge but no setAge (val is immutable), an equals, a hashCode, a toString and a few other useful methods as well like copy() which lets you create clones of the object with any fields modified.

So with Kotlin you get many of the benefits of C# and some features that C# is only just introducing now, or in its next versions, but it all interops seamlessly with Java.