### Environment

* Dubbo version: 3.1
* Operating System version: mac m1
* Java version: 1.8

### Steps to reproduce this issue

1. Use the following code to make a generalization call of the bean mode

2. ```java
     public interface DemoService {
       String sayHello(String name);
   }
   ```

   

3. ```java
   ReferenceConfig<GenericService> referenceConfig = new ReferenceConfig<>();
       referenceConfig.setInterface(DemoService.class.getCanonicalName());
       applicationConfig.setRegistry(registryConfig);
       referenceConfig.setApplication(applicationConfig);
       referenceConfig.setGeneric(GENERIC_SERIALIZATION_BEAN);
       GenericService genericService = referenceConfig.get();
   JavaBeanDescriptor result = (JavaBeanDescriptor)genericService.$invoke("sayHello", new String[]{"java.lang.String"}, new Object[]{JavaBeanSerializeUtil.serialize(null)});
   ```

### Expected Behavior

call success

### Actual Behavior

If there is an exception, please attach the exception trace:

```
Caused by: java.lang.NullPointerException
	at org.apache.dubbo.rpc.filter.GenericImplFilter.invoke(GenericImplFilter.java:126)
	at org.apache.dubbo.rpc.cluster.filter.FilterChainBuilder$CopyOfFilterChainNode.invoke(FilterChainBuilder.java:327)
	at org.apache.dubbo.rpc.cluster.filter.FilterChainBuilder$CallbackRegistrationInvoker.invoke(FilterChainBuilder.java:194)
	at org.apache.dubbo.rpc.protocol.ReferenceCountInvokerWrapper.invoke(ReferenceCountInvokerWrapper.java:78)
	at org.apache.dubbo.rpc.cluster.support.AbstractClusterInvoker.invokeWithContext(AbstractClusterInvoker.java:379)
	at org.apache.dubbo.rpc.cluster.support.FailoverClusterInvoker.doInvoke(FailoverClusterInvoker.java:81)
```
"Generic serialization [" +
                            GENERIC_SERIALIZATION_NATIVE_JAVA +
                            "] serialize result failed.", e);
                }
            } else if (ProtocolUtils.isBeanGenericSerialization(generic)) {
                appResponse.setValue(JavaBeanSerializeUtil.serialize(appResponse.getValue(), JavaBeanAccessor.METHOD));
            } else if (ProtocolUtils.isProtobufGenericSerialization(generic)) {
                try {
                    UnsafeByteArrayOutputStream os = new UnsafeByteArrayOutputStream(512);
                    applicationModel.getExtensionLoader(Serialization.class)
                        .getExtension(GENERIC_SERIALIZATION_PROTOBUF)
                        .serialize(null, os).writeObject(appResponse.getValue());
                    appResponse.setValue(os.toString());
                } catch (IOException e) {
                    throw new RpcException("Generic serialization [" +
                        GENERIC_SERIALIZATION_PROTOBUF +
                        "] serialize result failed.", e);
                }
            } else if (ProtocolUtils.isGenericReturnRawResult(generic)) {
                return;
            } else {
                appResponse.setValue(PojoUtils.generalize(appResponse.getValue()));
            }
        }
    }
    @Override
    public void onError(Throwable t, Invoker<?> invoker, Invocation invocation) {
    }
}