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Announcement: LanguageTool 2.8

I’m pleased to announce the release of LanguageTool 2.8. As usual, it is available for download at If you’re using the LibreOffice/OpenOffice add-on you can also make the update directly from the extension manager (right mouse button -> Update).

Changes include:

  • Many updates for the error detection rules for Breton, Catalan, Dutch, English, French, German, Polish, Portuguese, Spanish, Russian, and Ukrainian
  • Several bug fixes
  • Java API: removed deprecated methods

Please see for a complete list of changes.

SHA256 checksums:
8faccacf82c84d67ee89a35b31f70aebd6a5ac2ef8c5cfa399a2ba3e62b11edd LanguageTool-2.8.oxt


I am trying to install (update from 2.1) and get these errors:

(same for 2.7)

( { { Message = “[jni_uno bridge error] UNO calling Java method writeRegistryInfo: non-UNO exception occurred: java.lang.UnsupportedClassVersionError: org/languagetool/openoffice/Main : Unsupported major.minor version 51.0\X000ajava stack trace:\X000ajava.lang.UnsupportedClassVersionError: org/languagetool/openoffice/Main : Unsupported major.minor version 51.0\X000a\X0009at java.lang.ClassLoader.defineClass1(Native Method)\X000a\X0009at java.lang.ClassLoader.defineClassCond(\X000a\X0009at java.lang.ClassLoader.defineClass(\X000a\X0009at\X000a\X0009at\X000a\X0009at$000(\X000a\X0009at$\X000a\X0009at Method)\X000a\X0009at\X000a\X0009at java.lang.ClassLoader.loadClass(\X000a\X0009at java.lang.ClassLoader.loadClass(\X000a\X0009at\X000a\X0009at java.lang.ClassLoader.loadClass(\X000a\X0009at\X000a\X0009at\X000a”, Context = ( @0 } }

Seems your version of Java is not Java 7 or 8. Please also see