For a long time I used the locally running server:
java -cp $LTDIR/languagetool-server.jar org.languagetool.server.HTTPServer --port 8081 -t
Somehow, this does not start any longer.
This does not help either (The page is not where the link directs to):
languagetool-server.jar org.languagetool.server.HTTPServer --port 8081 -t
WARNING: unknown option: org.languagetool.server.HTTPServer
WARNING: unknown option: -t
Parameter --config must be set and point to a property file
Note: this is the HTTPS server - if you want to use plain HTTP instead, please see http://languagetool.org/http-server/
I don’t remember the -t option - LT has, I think, become stricter about accpeting nonexisting options. So I think the behaviour is correct, just remove the -t and it should work again.
java -cp $LTDIR/languagetool-server.jar org.languagetool.server.HTTPServer --port 8081
Error: Could not find or load main class org.languagetool.server.HTTPServer
Yes, I am sure. Maybe something else changed on my system; I would not know what, however. Anyway, I worked around it, using minimized LT gui as a server now.