Return the Java source code of a whole class

        :param _class: `ClassDefItem` object, to get the source from
        :return:

def get_source_class(self, _class):
        """
        Return the Java source code of a whole class

        :param _class: `ClassDefItem` object, to get the source from
        :return:
        """
        if not _class.get_name() in self.classes:
            return ""
        return self.classes[_class.get_name()]