Method server

okhttp/src/test/java/io/grpc/okhttp/TlsTest.java:744–750

(ServerCredentials creds)

  }

  private static Server server(ServerCredentials creds) throws IOException {
    return OkHttpServerBuilder.forPort(0, creds)
        .directExecutor()
        .addService(new SimpleServiceImpl())
        .build()
        .start();
  }

  private static ManagedChannelBuilder<?> clientChannelBuilder(
      Server server, ChannelCredentials creds) {