What version of gRPC-Java are you using?

On a fork up at commit d168632

What is your environment?

Mac OSX 10.14.6
Java 11.0.2

What did you expect to see?

The server should allow in-flight RPCs to finish

What did you see instead?

The client receives error WARNING: RPC 1 failed: Status{code=UNAVAILABLE, description=Network closed for unknown reason, cause=null}

Steps to reproduce the bug

• Add a call to Thread.sleep(15000) in io.grpc.examples.helloworld.HelloWorldServer.GreeterImpl.sayHello
• Build and run the server
• Run the client
• Ctrl+C the server once it gets the request

It seems like server.shutdown() does not wait for in-flight RPCs to finish before returning. The documentation makes it seem like that it should block.

I am able to "fix" the issue by adding a call to server.awaitTermination() in the stop method.