EDIT

Rank.getRankByName() is a preliminary implementation to meet the Berlin Model and other import requirements. That has been documented in the java doc.

Anyway we should think about dictionaries for rank names and other defined term vocabularies.

Maybe we should open a new ticket for this and close this one.

I guess we can close this ticket?

Yes, still open. I created a Test to reproduce this issue. However it is completely unclear what is being meant by "byName" in the method name ("Returns the rank identified through a name.") There is no way to find out the supported names without reading the code.

Another point the UnknownCdmTypeException that can be thrown by the getRankByName method. This should be EntityNotFoundException instead

This seems to be a misunderstanding. I did not mean that the issue is "fixed" but according to note-1 it is not an issue. All getRankByName methods do have a javadoc saying that they are preliminary implementation and that they serve only supporting the parser.
I did now additionally change the name of the method to getRankByLatinName() to make the semantics of these methods clearer as they actually only check for Latin labels. Checking for English labels is done by the method getRankByEnglishName or so.

I removed the test and close the ticket.