How to use Weka JSONLoader in Java IDE?

I want to use Weka in order to parse an existing json file in java eclipse. I believe this can be done using the JSONLoader class. After I read the classes’ specifications (http://weka.sourceforge.net/doc.dev/weka/core/converters/JSONLoader.html#JSONLoader–) I thought that this could be easily done by doing this:

JSONLoader jsonLoader = new JSONLoader(jsonFile);

Then I thought by just doing jsonLoader.getFileDescription() or jsonLoader.getSource() would give me results. This is not how it’s done though and I can’t find anywhere how to use the JSONLoader class in my java code. So in order not to make this question too broad, how can I create a JSONLoader object that reads a source that is in JSON format?