gobind: Interface with exported method that has a pointer to struct doesn't seem to generate correct java binding

[kunal...@gmail.com]

Consider the following example:

type TestStruct struct {
 Value string
}


type TestInterface interface {
 DoSomeWork(s *TestStruct)
}

The stub code generated for this interface is:

    public static abstract class Stub implements TestInterface {
            static final String DESCRIPTOR = "go.demo.TestInterface";
           
            private final go.Seq.Ref ref;
            public Stub() {
                ref = go.Seq.createRef(this);
            }
           
            public go.Seq.Ref ref() { return ref; }
           
            public void call(int code, go.Seq in, go.Seq out) {
                switch (code) {
                case Proxy.CALL_DoSomeWork: {
                    TestStruct param_s = in.readRef();
                    this.DoSomeWork(param_s);
                    return;
                }
                default:
                    throw new RuntimeException("unknown code: "+ code);
                }
            }
        }

Specifically, 

case Proxy.CALL_DoSomeWork: {

                   TestStruct param_s = in.readRef();

                   this.DoSomeWork(param_s);

                   return;

               }

is problematic because its trying to assign a ref object to the underlying java object which is of type TestStruct.

Could be that I'm doing something wrong here - would love any input!

[Hyang-Ah Hana Kim]

Thanks for the report. That's a bug.

https://github.com/golang/go/issues/10788

I will send a fix tomorrow. 

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