xfire插件自动生成客户端代码后,调用时报错(已解决)

使用eclipes的xfire插件，生成了Webservice的客户端代码
在调用时，报错，具体代码如下
调用client的TestClient代码

	HelloWordServiceClient service=new HelloWordServiceClient();
		HelloWordServicePortType type=service.getHelloWordServiceHttpPort();
		System.out.println(type.sayHello("123"));

HelloWordServiceClient 类中的create0方法中报错，代码如下，错误行已在代码中标出：

/**
 * 
 *以下为出错的方法
 */

private void create0() {
        TransportManager tm = (org.codehaus.xfire.XFireFactory.newInstance().getXFire().getTransportManager());
        HashMap props = new HashMap();
        props.put("annotations.allow.interface", true);
        AnnotationServiceFactory asf = new AnnotationServiceFactory(new Jsr181WebAnnotations(), tm, new AegisBindingProvider(new JaxbTypeRegistry()));
        asf.setBindingCreationEnabled(false);
        service0 = asf.create((com.tongtech.bjvsp.client.HelloWordServicePortType.class), props);//此处出错，提示HelloWordServicePortType不能为抽象类
        {
            AbstractSoapBinding soapBinding = asf.createSoap11Binding(service0, new QName("http://webservicedemo.rubyeye.net", "HelloWordServicePortTypeLocalBinding"), "urn:xfire:transport:local");
        }
        {
            AbstractSoapBinding soapBinding = asf.createSoap11Binding(service0, new QName("http://webservicedemo.rubyeye.net", "HelloWordServiceHttpBinding"), "http://schemas.xmlsoap.org/soap/http");
        }
    }

报错信息如下：
Exception in thread "main" org.codehaus.xfire.annotations.AnnotationException: Service class cannot be abstract: com.tongtech.bjvsp.client.HelloWordServicePortType
at org.codehaus.xfire.annotations.AnnotationServiceFactory.assertValidImplementationClass(AnnotationServiceFactory.java:268)
at org.codehaus.xfire.annotations.AnnotationServiceFactory.create(AnnotationServiceFactory.java:177)
at org.codehaus.xfire.service.binding.ObjectServiceFactory.create(ObjectServiceFactory.java:284)
at com.tongtech.bjvsp.client.HelloWordServiceClient.create0(HelloWordServiceClient.java:59)
at com.tongtech.bjvsp.client.HelloWordServiceClient.<init>(HelloWordServiceClient.java:26)
at com.tongtech.bjvsp.testclient.TestClient.main(TestClient.java:14)

由于客户端的代码是自动生成，所以不知哪里有问题，还是我在写服务器端代码时出了错？
因为是根据wsdl生成的客户端代码，因此我认为服务端应该不存在问题。
本人对于xfire不是十分熟悉，希望指点一二，谢谢