We found that the return value of InetAddress.getLocalHost().getHostName() in
JRE 8 is different with JRE 7. Our OS is Solaris 10. How does Java determine
the return value? In JRE 8, how get the same return value as JRE 7?

Here is a test case:
import java.net.InetAddress;
public class t {
   public static void main(String[]args) throws Exception {
       System.out.println(InetAddress.getLocalHost());
       System.out.println(InetAddress.getLocalHost().getHostName());
   }
}

In JRE 8, the test result is:

# java t
bsm1b-qfe0/192.168.100.26
bsm1b-qfe0

In JRE 7, the test result is:

# /usr/jdk/instances/jdk1.7.0/bin/java t
cnbjbcmuas76o5/192.168.100.26
cnbjbcmuas76o5



======================

Orginal /etc/hosts entry:

192.168.100.26 bsm1b-qfe0 bsm1b cnbjbcmuas76o5 cnbjbcmuas76o5.localdomain
localunit localunit.localdomain

After changing the /etc/hosts as
192.168.100.26 cnbjbcmuas76o5 bsm1b bsm1b-qfe0 cnbjbcmuas76o5.localdomain
localunit localunit.localdomain

the result in JRE 8 is same as the result in JRE 7.

With JRE 8:

[root@cnbjbcmuas76o5 /tmp]# java t
cnbjbcmuas76o5/192.168.100.26
cnbjbcmuas76o5



With JRE 7:
[root@cnbjbcmuas76o5 /tmp]# /usr/jdk/instances/jdk1.7.0/bin/java t
cnbjbcmuas76o5/192.168.100.26
cnbjbcmuas76o5