[SOLVED] 500 Internal Error Cannot invoke java.util.List because getAbTest is null

1

I’m running LanguageTool server on Archlinux version 6.3-1, and it is working fine on Obsidian Plugin. But on Firefox via the LanguageTool extention, it is failing with:

Error: Internal Error: Cannot invoke “java.util.List.contains(Object)” because the return value of “org.languagetool.server.HTTPServerConfig.getAbTest()” is null

The request the extension is making:
POST http:///v2/check?c=1&instanceId=36918:1701808777485&v=8.3.0

data=%7B%22text%22%3A%22test%2C+is+this+workaf%3F%5Cn%22%7D&textSessionId=36918%3A1701808777485&enableHiddenRules=true&level=picky&language=auto&noopLanguages=en%2Cpt&preferredVariants=en-US%2Cde-DE%2Cpt-BR%2Cca-ES&abtest=&preferredLanguages=en%2Cpt&disabledRules=WHITESPACE_RULE%2COXFORD_SPELLING_Z_NOT_S&useragent=webextension-firefox-ng&mode=textLevelOnly

2

Please see here for a workaround.

3

Thank you. That worked!