FQDN for DHCP Solaris 10 and Java Enterprise System install

I'm having trouble setting the fully qualified domain name (FQDN) for Solaris 10 with DHCP.  I was able to set the hostname but I can't seem to set the domain name.  I need the FQDN to appear when I run the "getent hosts" command, which is a requirement to install the Java Enterprise System Application Server.

Solaris 10 is using DHCP.  I'm using the default VMWare virtual appliance configuration, while running on a Windows XP host.  I'd like the Solaris hostname and domainname to work whether I'm at home with a wireless router (includes DHCP server) or at work.  The domainname is one I made up that is not really registered with DNS.  I just want to be able to install and run Sun's Application Server on my laptop for testing, so it doesn't have to have a "real" domain name or a static IP address.

What I did to set the hostname:
- Edited /etc/default/dhcpagent and set REQUEST_HOSTNAME=yes
- Edited /etc/hostname/vmxnet0 with FQDN, e.g., mylaptopname.example.com
- Ran the command ifconfig vmxnet0 dhcp release
- Ran the command reboot

I verified the hostname by running the command "hostname" and it returned the simple hostname.

As for the domainname, I tried setting the /etc/resolv.conf file, but it got rewritten after a reboot and returned to "localdomain" as the domain name.

Can someone tell me how to set the domain name so that the FQDN is returned when I run "getent hosts"?  My final goal is to install the Java Enterprise System Application Server which requires the hostname and domain name to be configured.

Thanks!