Upgrade com.ning:async-http-client to org.asynchttpclient:async-http-client

[sp00m]

Play v1.7.1 still relies on an old version of AsyncHttpClient: https://github.com/playframework/play1/blob/1.7.1/framework/dependencies.yml#L21.

This library has moved from https://github.com/ning/async-http-client (last commit in 2016) to https://github.com/AsyncHttpClient/async-http-client.

Should we upgrade Play accordingly?

[asolntsev]

@sp00m Yes, sure, it would be great to upgrade Play accordingly.
Can you prepare a pull request?

[asolntsev]

@sp00m Wait, no, we cannot upgrade. This library requires Netty 4.1.60.Final, but Play1 still uses Netty 3.x

[sp00m]

Ouch, good catch! Looks like migrating to Netty 4 is WIP: #1284. That doesn't seem easy though, according to the discussions on that issue :/

[cies]

An attempt was also made to upgrade this on RePlay (a Play1 fork): replay-framework/replay#25

It's quite close, but serving static assets is still a pain point iirc.

[Alexandermjos]

Would it be an alternative to use Java's "new" built in HttpClient? Support both send() and sendAsync().