Java getLocalHost fails

[scanon]

A user reported an odd failure with Java at NERSC.

import java.net.InetAddress;

class IPTest { public static void main(String[] args) throws Exception {

System.out.println("IP Name: " + InetAddress.getLocalHost()); System.out.println("Host Name: " + InetAddress.getLocalHost().getHostName()); System.exit(0); } }