Throw exceptions in some cases

Julien LepillerFri Apr 19 21:28:51+0200 2019

0b58b87

nani/app/furiganatextview/src
namelast commitdate
androidTest/Add furiganaMon Apr 15 20:09:48+0200 2019
main/Add furiganaMon Apr 15 20:09:48+0200 2019
test/Add furiganaMon Apr 15 20:09:48+0200 2019