java Exception in thread “main” java.net.UnknownHostException: Test: Test: unknown error OS ubuntu

Question

This error is related to my previous question where I had an error with InetAddress.getLocalHost(). I found a suggestion to add an entry in /etc/hosts

Answer 1

There's a chance that you might be contacting to an external ip address in your application and you are not connected to the internet. So, Check your Internet Connection before making some change to host/dns or any other...

There's also a possibility that you require a VPN Connection to be in the some particular network to access those external url/ip. So, check that too.

Cheers ;-)

Answer 2

Your host name is Sachin. The exception in thread "main" java.net.UnknownHostException: Sachin: Sachin: unknown error show that.

Add Sachin to /etc/hosts

myip     localhost
127.0.0.1   localhost
127.0.1.1   test5
127.0.0.1   Sachin