InetAddress.getLocalHost() slow to run (30+ seconds)

The issue can be solved by adding the following to /etc/hosts (assuming output of hostname command is my-macbook:

127.0.0.1   my-macbook
::1         my-macbook

This returns the time to something more suitable (< 1 second)

This problem appears on MacOS Sierra using Java8, updates equals or bigger than 60 (jdk1.8.0_60.jdk, jdk1.8.0_77.jdk, etc).

The solution can be found here: https://github.com/thoeni/inetTester.

This is the content of my /etc/hosts file:

127.0.0.1   localhost mac.local
::1         localhost mac.local

In my case, mac is my computer name.

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