GenericService泛化调用使用oninvoke、onreturn、onthrow时，FutureFilter的invocation.getMethodName()无法正确返回

[xiangxiuhui]

• I have searched the issues of this repository and believe that this is not a duplicate.
• I have checked the FAQ of this repository and believe that this is not a duplicate.

Environment

• Dubbo version: 2.6.4

Steps to reproduce this issue

1. GenericService泛化调用
2. 使用oninvoke、onreturn、onthrow
3. FutureFilter无法正常回调

Expected Result

StaticContext.getKey(invoker.getUrl(), invocation.getMethodName(), Constants.ON_INVOKE_METHOD_KEY)
返回
com.alibaba.boot.dubbo.demo.consumer.DemoService:1.0.0.sayHello.oninvoke.method

Actual Result

StaticContext.getKey(invoker.getUrl(), invocation.getMethodName(), Constants.ON_INVOKE_METHOD_KEY)
返回
com.alibaba.boot.dubbo.demo.consumer.DemoService:1.0.0.$invoke.oninvoke.method

预期是：

        String methodName = invocation.getMethodName();
        if("$invoke".equals(methodName)) {
            Object[] arguments = invocation.getArguments();
            methodName = (String) arguments[0];
        }

[tswstarplanet]

Thank you! I will fix this bug in 2.6.x version

[chickenlj]

@tswstarplanet Have you confirmed this issue? Would you please also submit one to 2.7.x?

[tswstarplanet]

I debugged it on 2.6.x, it indeedly have problems.
The corresponding code on 2.7.x is refactored. So I will confirm if there are problems, if so, I will fix it.