public Collection<Binding> wire(Bound bound, BindingContext context, Field field) throws IllegalAccessException, IntrospectionException { String target = bound.to(); JComboBox combo = context.getFieldObject(field, JComboBox.class); Mutator mutator = Mutator.create(context, target); final String nullValue = (String)Utilities.getNullValue(context, bound.nullValue()); return ImmutableList.of(bindJComboBox(bound, mutator, combo, nullValue)); }