After calling getHostName() method of InetAddress class it changes the InetAddress itself . Its coming on Solaris 8 machine with merlin build 45.

How to reproduce it:


import java.net.*;
import java.io.*;

public class GetIP {


   public static void main(String[] arg)
   {
       try {
    
        InetAddress iadr = InetAddress.getByName(arg[0]);
        System.out.println("inet addr to string : " + iadr);
        System.out.println(" Inet address get Host Name : " + iadr.getHostName());
        System.out.println("inet addr tostring after get host name : " + iadr);
      } catch(Exception exp) {
         System.out.println("exp mesg " + exp.getMessage());
      }
   } // End of main

}
 
Output of the above code on execution:

javacup:/home/va112650/SasTest/net 472 % java GetIP ff15::1234:1234:1234:1234
inet addr to string : /[ff15::1234:1234:1234:1234]
 Inet address get Host Name : [ff15::1234:1234:1234:1234]
inet addr tostring after get host name : [ff15::1234:1234:1234:1234]/[ff15::1234:1234:1234:1234]