from py4j.java_gateway import JavaGateway


class ClassNone(object):

    def getName(self):
        return None

    class Java:
        implements = ["py4j.examples.InterfaceNone"]

if __name__ == "__main__":
    gateway = JavaGateway(start_callback_server=True)
    objectNone = ClassNone()
    returnValue = gateway.entry_point.testNone(objectNone)
    print(returnValue)
    gateway.shutdown()