Some bug in grpcServerCompatible.

//It is generated code.
  public class APIImplLegacyAdapter(
    private val streamExecutor: ExecutorService,
    private val Query: () -> APIQueryBlockingServer//Unresolved reference: APIQueryBlockingServer. It should be APIBlockingStub.
  ) : APIImplBase() {
    public override fun Query(request: Request,
        response: StreamObserver<Reply>): Unit {
      response.onNext(Query().Query(request))
      response.onCompleted()
    }
  }

//It is generated code.
  public class APIBlockingStub : AbstractStub<APIStub> {
    internal constructor(channel: Channel) : super(channel)

    internal constructor(channel: Channel, callOptions: CallOptions) : super(channel, callOptions)

    public override fun build(channel: Channel, callOptions: CallOptions) =
        APIStub(channel, callOptions)

    public fun Query(request: protowireSourcePath.Request):
        protoWireSourcePath.Reply = blockingUnaryCall(channel,//Unresolved reference: protoWireSourcePath. It is not support java_package option.
        getQueryMethod(), callOptions, request)
  }

also #2202

The report concerns Kotlin generated output from grpcServerCompatible, including APIImplLegacyAdapter and APIBlockingStub. Start by locating the generator path for this compatibility mode and compare its output with the two reported unresolved references, including the java_package case. Reproduce the generated output and confirm both references are corrected; use issue #2202 for related context.