Merge pull request #3528, fixes #208, setOnreturn does not work with generic invocation.

Author: beiwei30

dubbo-config/dubbo-config-api/src/main/java/org/apache/dubbo/config/ReferenceConfig.java

@@ -46,6 +46,7 @@
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.IOException;
+import java.lang.reflect.Method;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.HashMap;
@@ -305,8 +306,21 @@ private void init() {
 
         ref = createProxy(map);
 
-        ConsumerModel consumerModel = new ConsumerModel(getUniqueServiceName(), interfaceClass, ref, interfaceClass.getMethods(), attributes);
-        ApplicationModel.initConsumerModel(getUniqueServiceName(), consumerModel);
+        ApplicationModel.initConsumerModel(getUniqueServiceName(), buildConsumerModel(attributes));
+    }
+
+    private ConsumerModel buildConsumerModel(Map<String, Object> attributes) {
+        Method[] methods = interfaceClass.getMethods();
+        Class serviceInterface = interfaceClass;
+        if (interfaceClass == GenericService.class) {
+            try {
+                serviceInterface = Class.forName(interfaceName);
+                methods = serviceInterface.getMethods();
+            } catch (ClassNotFoundException e) {
+                methods = interfaceClass.getMethods();
+            }
+        }
+        return new ConsumerModel(getUniqueServiceName(), serviceInterface, ref, methods, attributes);
     }
 
     @SuppressWarnings({"unchecked", "rawtypes", "deprecation"})

dubbo-rpc/dubbo-rpc-dubbo/src/main/java/org/apache/dubbo/rpc/protocol/dubbo/filter/FutureFilter.java

@@ -206,14 +206,22 @@ private ConsumerMethodModel.AsyncMethodInfo getAsyncMethodInfo(Invoker<?> invoke
         if (consumerModel == null) {
             return null;
         }
-        ConsumerMethodModel methodModel = consumerModel.getMethodModel(invocation.getMethodName());
+
+        String methodName = invocation.getMethodName();
+        if (methodName.equals(Constants.$INVOKE)) {
+            methodName = (String) invocation.getArguments()[0];
+        }
+
+        ConsumerMethodModel methodModel = consumerModel.getMethodModel(methodName);
         if (methodModel == null) {
             return null;
         }
+
         final ConsumerMethodModel.AsyncMethodInfo asyncMethodInfo = methodModel.getAsyncInfo();
         if (asyncMethodInfo == null) {
             return null;
         }
+
         return asyncMethodInfo;
     }
 }