I have Java 1.4, WordNet 2.1 and JWNL 1.2 on my machine, and I wish to be able to use WordNet from inside a Java program to infer various lexical information about words. Typically, I will need to see if a word is a hyponym of person, for instance.

My problem is that I am not getting started at all! I have made a correction in the file_properties.xml file so that the dictionary path leads to the dict folder of my WordNet installation:

C:\Programfiler\WordNet\2.1\dict

Still I get the below quoted error message when I try to run my short test file:

Please help, anyone!

net.didion.jwnl.JWNLException: Unable to install net.didion.jwnl.dictionary.FileBackedDictionary
        at net.didion.jwnl.util.factory.Element.install(Element.java:34)
        at net.didion.jwnl.JWNL.initialize(JWNL.java:157)
        at Dissertation.WNTest.<init>(WNTest.java:17)
        at Dissertation.WNTest.main(WNTest.java:37)
Caused by: net.didion.jwnl.JWNLException: The properties file must specify a dictionary path
        at net.didion.jwnl.util.factory.AbstractValueParam.create(AbstractValueParam.java:34)
        at net.didion.jwnl.dictionary.FileBackedDictionary.install(FileBackedDictionary.java:99)
        at net.didion.jwnl.util.factory.Element.install(Element.java:32)
        ... 3 more
Caused by: java.lang.ClassNotFoundException: net.didion.jwnl.dictionary.DefaultMorphologicalProcessor
        at java.net.URLClassLoader$1.run(URLClassLoader.java:199)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:187)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:289)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:235)
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302)
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Class.java:141)
        at net.didion.jwnl.util.factory.AbstractValueParam.create(AbstractValueParam.java:30)
        ... 5 more

Hi,

is it possible that there is a typo in your path?
> C:\Programfiler\WordNet\2.1\dict
                        ^^^^    

Lars

What do you mean? Capital C? I have tried lower case c, it doesn't make any difference. I am sure that the path is correct, any other tips?

No, sorry. I was thinking of a typo in the word 'Programfiler' since this directory is often called 'Program Files'. However, your Windows installation probably uses your native language.

Lars

Oh, I see. Well, I am sure that is correct. Can you think of any other reasons?