thechiselgroup/biomixer — comment on commit 6200330ceb7d1dbc80f978e85044363eae3ae9b7
File: biomixer/src/org/thechiselgroup/biomixer/client/core/ui/widget/listbox/ListBoxControl.java line 73
By lgrammel:

passing in values in the constructor or setting it to a empty list by default might be the better option - the class invariant would be that values can never be null.