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You could just simplify this all to `it == obj` - the only caveat is that if `it` and `obj` are both `null` - you'll get `true`.
If that's not desired, then this would yield the same result as the original code `it != null &amp;&amp; it == obj`

This assumes that `it` and `obj` are of the same type. Using equals allows for a custom comparison function. In this case I have a custom data class which I want to support a comparison to an ID of type Long.

sure, but doesn’t `==` translate to a `.equals()` call in Kotlin?

<https://kotlinlang.org/docs/reference/equality.html#structural-equality>

or am I missing an edge case or something else unintuitive?

Yes <@U74HWEPTP> you are correct, in kotlin `a == b` and `a.equals(b)` are identical.
<@U5PRA0FLJ> if you want the java "==" you'll have to use === in kotlin.

Nice, yeah it does. <@U7LCPFVKL> I only had that second part in to support matching a `null`, and since that is taken care of by what == is translated to. I can do what I need by just having `a == b`