Added support unresolved socket addresses

[vtsykun]

Currently trying to connect to the tor network causing DNS resolution through the DNS server specified in the network configuration. In this PR added support unresolved socket addresses to support .onion resources

[marci4]

Hey,
you should be able to do this with a custom DnsResolver.
See https://github.com/TooTallNate/Java-WebSocket/blob/master/src/main/java/org/java_websocket/client/DnsResolver.java and #906

Best regards,
Marcel

[PhilipRoman]

I think the problem with DnsResolver is that it returns an InetAddress, not an InetSocketAddress.
If I understand correctly, InetAddress doesn't support unresolved addresses, only InetSocketAddress does that (using createUnresolved).

[vtsykun]

Hey, you should be able to do this with a custom DnsResolver. See https://github.com/TooTallNate/Java-WebSocket/blob/master/src/main/java/org/java_websocket/client/DnsResolver.java and #906

Best regards, Marcel

Yes, DnsResolver must return InetAddress, so there is no way to create an unresolved address.
It looks logical that if dnsResolver == null, then it will be created unresolved address. Also there is no BC here

conn = new WebSocketClient(serverUri, httpHeaders) {...}
conn.setDnsResolver(null);

[marci4]

My bad.

Changes look good for me, what do you think @PhilipRoman?

[PhilipRoman]

It's not the most elegant solution, but I think it should be merged.