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kotlinlang

I'm trying to compare nullable classes. Has anyone been able to do this? E.g.
```
        fun isObjectOfSameType(first: Comparable?, second: Comparable?) : Boolean {
            return first::class.java.isAssignableFrom(second)
        }
```
however  `javaClass` or `::class.java` can't be called on `Nullable` types

You will need to add null checks then
```
   fun isObjectOfSameType(first: Comparable&lt;*&gt;?, second: Comparable&lt;*&gt;?): Boolean {
        if (first == null &amp;&amp; second == null) {
            return true
        }
        if (first == null || second == null) {
            return false
        }
        return first::class.java.isAssignableFrom(second::class.java)
    }
```

Late to the party but thanks, I ended up doing that in many places, forgot to come back and now I see threads.