java.lang.NoClassDefFoundError: org/languagetool/JLanguageTool

[bricewge]

Hello,

This is my setup with languagetool 2.5:

java version "1.7.0_51"
OpenJDK Runtime Environment (IcedTea 2.4.6) (ArchLinux build 7.u51_2.4.6-1-x86_64)
OpenJDK 64-Bit Server VM (build 24.51-b03, mixed mode)

GNU Emacs 24.3.1

I configure it this way:

(require 'langtool)
(setq langtool-language-tool-jar "/usr/share/java/languagetool/languagetool-commandline.jar")
(setq langtool-java-bin "/usr/bin/java")
;; Set keybindings
(global-set-key "\C-x4w" 'langtool-check)
(global-set-key "\C-x4W" 'langtool-check-done)
(global-set-key "\C-x4l" 'langtool-switch-default-language)
(global-set-key "\C-x44" 'langtool-show-message-at-point)
(global-set-key "\C-x4c" 'langtool-correct-buffer)

(setq langtool-mother-tongue "fr")

But langtool-check always return me the following:

LanguageTool exited abnormally with code 1 (Exception in thread "main" java.lang.NoClassDefFoundError: org/languagetool/JLanguageTool)

[mhayashi1120]

Thanks for the report.

This is my setup with languagetool 2.5:

Hmm, version 2.5 is working for me.

(setq langtool-language-tool-jar "/usr/share/java/languagetool/languagetool-commandline.jar")

It seems under package system file. Please download and try original zip file from https://www.languagetool.org/

[mhayashi1120]

And please look into environment variables.

[bricewge]

When used with the original zip file, langtool for emacs is working, thanks. Do you know how to use it with the package from a package manager?

[mhayashi1120]

@bricewge I don't enough know about ArchLinux package system and Java. Please try:

diff -r /path/to/LanguageTool-2.5 /usr/share/java/languagetool/

This may help to disclose the difference between zip and Arch package system.

[bricewge]

From the diff I get this: http://hastebin.com/xowirigide.avrasm. And the package has been built with this recipe https://projects.archlinux.org/svntogit/community.git/tree/trunk/PKGBUILD?h=packages/languagetool. It looks like the .jar and the libs directory had moved to /usr/share/java instead of all the files being in the same directory.

[mhayashi1120]

@bricewge Is this Arch package working?

For instance, languagetool-commandline.jar is just a zip file, this contains:

 META-INF/MANIFEST.MF

This file seems to say this jar file need to keep directory structure. I think that you need to bug report to archlinux project.

[bricewge]

:+1: Thanks a lot @mhayashi1120, you nailed it! I filed a bug here: https://bugs.archlinux.org/task/39925

[bricewge]

If someone else get the same issue on Archlinux, you should use the emacs-langtool AUR package instead of the languagetool package.