private static void tryToSetList(Object object, Node param) throws TikaConfigException {
        if (hasClass(param)) {
            tryToSetClassList(object, param);
        } else {
            tryToSetStringList(object, param);
        }
    }
Use this to build a list of components for a composite item (e.g.
CompositeMetadataFilter, FetcherManager), each with their own configurations

@param compositeElementName
@param itemName
@param is
@throws TikaConfigException
@throws IOException
tika-core/src/main/java/org/apache/tika/config/ConfigBase.java