code: public PropertyModel<?> getPropertyModel(final String propertyName) {
          for (PropertyModel<?> propertyModel : propertyModels) {
              if (propertyModel.getName().equals(propertyName)) {
                  return propertyModel;
              }
          }
          return null;
      }
docs: Gets a {@link PropertyModel} by the property name.
  
  @param propertyName the PropertyModel's property name
  @return the PropertyModel or null if the property is not found