No, you won't earn anything. T is not listed as an earning class on the
Etihad Guest earning page for flights on Etihad, meaning that you will earn no miles.
This is the price you pay for getting such an incredibly cheap ticket. It's certainly not unusual that deeply discounted fares (and to me this looks like some special tour operator fare) do not earn miles or any form of credit in any Frequent Flyer Programme.
Enjoy Japan, amazing country!
EDIT: I found the fare rules on Expert Flyer for this fare - TAMSPL. The base fare is only €55!!!
Code:
TRAVEL RESTRICTIONS
VALID FOR TRAVEL COMMENCING ON/AFTER 01JUN14 AND ON/
BEFORE 30JUN14. ALL TRAVEL MUST BE COMPLETED BY
MIDNIGHT ON 30JUN14.
SALES RESTRICTIONS
FOOTNOTE RULE
TICKETS MUST BE ISSUED ON/AFTER 12MAY14 AND ON/BEFORE
15MAY14.
FARE RULE
TICKETS MUST BE ISSUED ON THE STOCK OF EY.