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

Is there a stacktrace or a hint in the logs? (very important)
Screenshots work as well, but don't screenshot your logs.

Steps to Reproduce

Steps to reproduce the behavior:

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?