About Question enthuware.ocpjp.ii.v11.2.1826 :

[vts.vts]

It's probably just a typo (not -> note), but as a non-native English speaker, I had to read the sentence many times to understand what is meant by it.

Not that it is the value contained in the Optional that is passed to the Consumer and not the Optional itself.

I suppose it should be:
Note that it is the value contained in the Optional that is passed to the Consumer and not the Optional itself.[/quote]
Or am I missing something?
Well, today I found that 1Z0-817 is discontinued anyway, but maybe it appears in other exams too?