Setup Instructions: JRE a requirement for OpenRefine?

[zormit]

The Setup Instructions page does not explain that JRE is needed for OpenRefine.
But after communicating with a prospective student, it seems that it is indeed required, also the OpenRefine Setup Instructions do list JRE as requirement.

Installing JRE is very much dependent on the System again. Do we have any attempts to describe this to the students? In my example, it even was a 32bit system, so the first attempt failed (by trying to install 64 bit JRE).

Is this a known issue, i.e. was this a point of failure in previous DC Workshops?