Enthuware

What jdk is this question based upon?

I have 1.7.0_60 and under it there is File[] listRoots() method in FileSystem (which is also referenced in File#listRoots). There is no FileSystem#getRootDirectories() method, and yet the answer variant using it is listed as correct.

In case it is relevant, I use question bank com.enthuware.ets.ocp-jp-ii.v7 version 1.76.

It is there: http://docs.oracle.com/javase/7/docs/ap ... irectories()

Funny:
FileSystem.getRootDirectories() returns [ C:\, D:\, E:\ ]
File.listRoots() returns { C:\, D:\ }
(E:\ is my DVD drive)