Failed autowired *BlockingV2Stub type generated by gRPC-java 1.70.0

[seal90]

The context

The flow autowired will fail, and the main configuration. The new *BlockingV2Stub from grpc/grpc-java@ea8c31c commit.

    @GrpcClient("hello")
    private HelloWorldGrpc.HelloWorldBlockingV2Stub helloWorldBlockingV2Stub;

    <grpc.version>1.70.0</grpc.version>
    <protobuf.version>3.25.5</protobuf.version>

// User Code definitions
service HelloWorld {
  // Sends a greeting
  rpc SayHello (HelloRequest) returns (HelloReply) {}

  rpc ToSayHello (HelloRequest) returns (stream HelloReply) {}
}

// The request message containing the user's name.
message HelloRequest {
  string name = 1;
}

// The response message containing the greetings
message HelloReply {
  string message = 1;
}

Both HelloWorldBlockingV2Stub and HelloWorldBlockingStub extends AbstractBlockingStub so BlockingStubFactory cann't work well. FallbackStubFactory can work.

public static final class HelloWorldBlockingV2Stub
      extends io.grpc.stub.AbstractBlockingStub<HelloWorldBlockingV2Stub>{...}

public static final class HelloWorldBlockingStub
    extends io.grpc.stub.AbstractBlockingStub<HelloWorldBlockingStub> {...}

public class BlockingStubFactory extends StandardJavaGrpcStubFactory {

    @Override
    public boolean isApplicable(Class<? extends AbstractStub<?>> stubType) {
        return AbstractBlockingStub.class.isAssignableFrom(stubType);
    }

    @Override
    protected String getFactoryMethodName() {
        return "newBlockingStub";
    }
}

The bug

What's the problem? What's not working? What do you expect to happen.

Stacktrace and logs

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Screenshots work as well, but don't screenshot your logs.

Steps to Reproduce

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1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

The application's environment

Which versions do you use?

• Spring (boot):
• grpc-java:
• grpc-spring-boot-starter:
• java: version + architecture (64bit?)
• Other relevant libraries...

Additional context

• Did it ever work before?
• Do you have a demo?