What's the goal of your latest commit? Why you want DockerClientConfig expose SSLConfig?

Because i need know exact SSLConfig configuration that provided SSL connection. I can get hosts, names, etc, but not ssl part. That's why SSLConfig (like it was before) should be stored and not SSLContext.
Fix is not final, still testing it. Found NPE (lost if check).

PS Found that com.github.dockerjava.netty.DockerCmdExecFactoryImpl.InetSocketInitializer#init has
final SocketAddress proxyAddress = new InetSocketAddress(addr, 8008); that never used.