}
Property property = (Property) findObject(Property.class);
ValueSource source;
if (initialValue != null) {
source = new FixedValueSource(container.getValue());
property.setInitialValue(container.getValue());
} else if (propertyReference != null) {
source = new PropertyValueSource(propertyReference);
} else if (computedPropertyRef != null) {
source = new ComputedValueSource(