java.net.SocketException: Invalid argument: connect

Question

My new laptop (Alienware m17x) throws a java.net.SocketException: Invalid argument: connect when I run the following basic code:

Server.java:

Answer 1

I have figured out a way to make this a permanent change from here.

What you need to do is add a system variable named JAVA_TOOL_OPTIONS and set this to whatever you want to be passed to java as a commandline argument whenever it starts up, in yours and my case being

-Djava.net.preferIPv4Stack=true