Reduce unused imports in generated sources
The server-side views that are emitted always contain a fixed set of import statements even when they aren't used within the class. In particular these two end up being unneeded much of the time:
import java.util.*; import java.util.Map.Entry;
A nice clean up would be to only emit these when required so that more aggressive IDEs (e.g., Eclipse) don't list any warnings for these generated sources.