Could not find StateFunctionModule in Example, no routers are defined error

Question

I could run Harness example here

but I copied the code to another directory and use the same dependencies in pom.xml, it raised error that no routers defined

I debug and found that MyModule which extends StateFunModule was not found. Thus the class loader get no module and the router and func size is 0 and failed in validation step. (The step to check ingress, egress, router, func not size 0)

PS: I just copied all the code, thus @AutoService is also included. According to here, it should work without further configuration.

---

Update: Seems its statefun issue related to @AutoService

I added following code in the pom in another project (unrelated to statefun)

        <dependency>
            <groupId>com.google.auto.service</groupId>
            <artifactId>auto-service</artifactId>
            <version>1.0-rc6</version>
            <optional>true</optional>
        </dependency>

It works, the META-INF is generated.

But if using

        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>statefun-flink-distribution</artifactId>
            <version>2.2-SNAPSHOT</version>
        </dependency>

The META-INF is not generated, and I found in statefun, the dependency used is actually

        <dependency>
            <groupId>com.google.auto.service</groupId>
            <artifactId>auto-service</artifactId>
            <version>1.0-rc6</version>
            <optional>true</optional>
        </dependency>

And I test this dependency, it could not generate META-INF, and I am curious that why if we directly clone the statefun repo and mvn clean package, it could work.