Why the language tool is error?

I tried to install language tool. The installation process was error. The message that I got:

[jni_uno bridge error] UNO calling Java method writeRegistryInfo: non-UNO exception occurred: java.lang.NoClassDefFoundError: com/sun/star/task/XJobExecutor
java stack trace:
java.lang.NoClassDefFoundError: com/sun/star/task/XJobExecutor
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at java.lang.ClassLoader.loadClass(ClassLoader.java:412)
at java.net.FactoryURLClassLoader.loadClass(URLClassLoader.java:789)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
at com.sun.star.comp.loader.RegistrationClassFinder.find(RegistrationClassFinder.java:52)
at com.sun.star.comp.loader.JavaLoader.writeRegistryInfo(JavaLoader.java:399)
Caused by: java.lang.ClassNotFoundException: com.sun.star.task.XJobExecutor
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
… 15 more

I’m using ubuntu 14.04 LTS

Thanks.

…and instead simply copy&paste the message itself, you take a screnshot, upload to dropbox and copy&paste the link … how dumb could we be ???

Yeah…you are right I should just copy and paste the message. So, do you have any solution for that?

Read these guidelines and ask a good question.

Since this question was highly ranked in search I’ll link to the solution: https://askubuntu.com/a/671946/25639
So install the libreoffice java package, e.g.

sudo apt-get install libreoffice-java-common