JAVA Client-Server grpc with SSL . Unable to communicate client server

Please answer these questions before submitting your issue.

What version of gRPC are you using?

<grpc.version>1.14.0</grpc.version>

What did you expect to

I am expecting to run Client-Server grpc with SSL.

Hi, I have created a maven project and make poc Client-Server-grpc by using this reference https://github.com/grpc/grpc-java/tree/master/examples And its working properly. But when I try to use TLS, getting following response:

**Run HelloWorldServerTls:** 

grpc.server.tls.HelloWorldServerTls start
INFO: Server started, listening on 50051

**Run HelloWorldClientTls:**

grpc.client.tls.HelloWorldClientTls greet
INFO:  Will try to greet localhost ...
Sep 12, 2018 4:50:59 AM grpc.client.tls.HelloWorldClientTls greet
WARNING: *****RPC failed: Status{code=UNAVAILABLE, description=io exception, cause=io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: no further informat
ion: localhost/0:0:0:0:0:0:0:1:50051
        at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
        at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717)
        at io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:325)
        at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:340)
        at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:634)
        at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:581)
        at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:498)
        at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:460)
        at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884)
        at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
        at java.lang.Thread.run(Thread.java:748)
Caused by: java.net.ConnectException: Connection refused: no further information
        ... 11 more
}
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS

Kindly suggest.

Thanks!

[dapengzhang0]

To clarify:

• The example in examples/src/main/java/io/grpc/examples/helloworldtls is using TLS.
• The example in examples/src/main/java/io/grpc/examples/alts is using ALTS, which is not TLS at all, and could only be used in GCP VM environments.

[lisongmin]

Same problem.

• v1.13.2 work well
• v1.14.0, v1.15.0 not work