netty5/resolver-dns
joymufeng 2562ef7cbe Fix a bug of DnsNameResolver while working with NoopDnsCache.
Motivation:

If DnsNameResolver works with NoopDnsCache, IndexOutOfBoundsException will
be thrown.

Modifications:

Test if the result of DnsNameResolver.get(hostname) is empty before
accessing it's elements.
2016-06-27 13:43:06 +02:00
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