Idiom question: I'm converting some java code that...

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[michaelsims]

Idiom question: I'm converting some java code that has a private field of type Object that exists so various code within the object can use its monitor to synchronize on. So I have private Object lock = new Object();. The convertor replaces this with private val lock = Any(), but this looks slightly funny to me for some reason. using Object() here also works. Which would you consider idiomatic?