String.format("Cannot map parameter of type %s for action method %s."
+ " Make sure you specify a valid DataType from the Dictionary.", clazz, method));
}
final boolean mandatory = actionParameter.mandatory();
final String displayLabel = actionParameter.displayLabel();
final String constraintName = StringUtils.stripToNull(actionParameter.constraintName());
final ParameterDefinition parameterDefinition = new ParameterDefinitionImpl(name,
dataType.getName(), mandatory, displayLabel, multivalued, constraintName);
parameterDefinitions.add(parameterDefinition);
final String parameterName = parameterDefinition.getName();
if (mapping.hasParameter(parameterName) == false) {