Formatting. How about
```
Iterable<String> ips = node.getPrivateAddresses();
if (!excludePublicIps) {
   ips = concat(ips, node.getPublicAddresses());
}
checkState(size(ips) > 0, "node does not have IP addresses configured: " + node);
return FluentIterable.from(ips);
```
which removes the `else`?