I don't know why I can't find the answer to this, but I need to pass a blank UUID object in one of my functions to represent a lack of UUID. What is the UUID analagous form of 

```
val x: "" 

```

, which would be an empty string. I'm essentially trying to get an empty UUID. I tried

```
UUID.fromString("")

```

but received an error, as you need a valid UUID string.

EDIT: I am implementing this in Scala.