Comment # 10 on bug 1050305 from Wolfgang Bauer

According to some feedback on forums.opensuse.org this seems to be caused by
bug#1079744 .

languagetool should work fine if ridl.jar and unoil.jar are not broken.

I.e. install libreoffice from the LibreOffice:6 repo to fix it if you are using
Leap 42.3.
It should be fine on Tumbleweed meanwhile and Leap 15.0 currently. (no idea if
it will break there as well again if there will be an update...)