Github user srowen commented on the pull request:
https://github.com/apache/spark/pull/4534#issuecomment-73946196
This works, so it's not quite empty partitions:
```
sc.parallelize(Seq[Int](), 1).isEmpty()
```
This also creates an exception, so it's to do with `Seq()` (which is of
`Nothing`, not `Any`, sorry):
```
sc.parallelize(Seq(), 1).take(1)
```
I think the problem roughly boils down to this behavior in Scala:
```
Seq(Seq().toArray,Seq().toArray).toArray
java.lang.ArrayStoreException: [Ljava.lang.Object;
...
```
The problem is the `Nothing` type, rather than emptiness, but I'm still
scratching my head figuring out the cleanest way to deal with that.
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