I was working to get my Netty working for Openssl support and I encounter these two errors
https://github.com/netty/netty/issues/4828 - UnsupportedOperationException when Unsafe not available
https://github.com/netty/netty/issues/4918 - io.netty.handler.codec.DecoderException: javax.net.ssl.SSLHandshakeException: error:10000103:SSL routines:OPENSSL_internal:UNSUPPORTED_PROTOCOL