MaxTotalConnectionsTest failing

[TomGranot]

Stack trace:

java.lang.AssertionError: expected [null] but found [java.net.UnknownHostException: DNS name not found [response code 3]]
	at org.asynchttpclient.channel.MaxTotalConnectionTest.testMaxTotalConnections(MaxTotalConnectionTest.java:110)
	at java.util.ArrayList.forEach(ArrayList.java:1259)
... Removed 35 stack frames

Investigating, it relies on actual URLs (https://github.com, https://google.com) which feels like a bad idea.

[slandelle]

The real problem is that DNS resolution has serious issues on Travis.

[TomGranot]

@slandelle Fails locally too - but very, very happy to see that you're lurking around still :)

[TomGranot]

Closed by #1753.