src/main/java/org/jboss/util/id/VMID.java
private static byte[] getHostAddress() {
      return (byte[]) AccessController.doPrivileged(new PrivilegedAction() {
            public Object run() {
               try {
                  return InetAddress.getLocalHost().getAddress();
               }
               catch (Exception e) {
                  return UNKNOWN_HOST;
               }
            }
         });
   }
private static byte[] getHostAddress() {
      return (byte[]) AccessController.doPrivileged(new PrivilegedAction() {
            public Object run() {
               try {
                  return InetAddress.getLocalHost().getAddress();
               }
               catch (Exception e) {
                  return UNKNOWN_HOST;
               }
            }
         });
   }
Return the current host internet address.