What version of gRPC are you using?

1.20

What did you expect to see?

I was unable to get grpc-netty-shaded or grpc-netty (+ the classifier) working on Fedora 30.

This is the error I encountered when using netty-shaded:

java.lang.IllegalStateException: Could not find TLS ALPN provider; no working netty-tcnative, Conscrypt, or Jetty NPN/ALPN available

And here's the error I encountered when using grpc-netty + the fedora classifier:

Caused by: java.lang.UnsatisfiedLinkError: libcrypt.so.1: cannot open shared object file: No such file or directory

I was able to workaround this issue by creating a sym-link for libcrypt.so.1:

ln -s /usr/lib64/libcrypt.so /usr/lib64/libcrypt.so.1

Creating this link solved the issue for me.
Note: you might need to install openssl-devel.

Leaving this here in-case it helps someone in the future.