@SuppressWarnings("rawtypes")
protected void initDefaultStepConverters() {
List<StepDefinitionConverter> converters = new ArrayList<StepDefinitionConverter>();
converters.add(new ParallelStepsDefinitionConverter());
converters.add(new ChoiceStepsDefinitionConverter());
converters.add(new HumanStepDefinitionConverter());
converters.add(new FeedbackStepDefinitionConverter());
converters.add(new ScriptStepDefinitionConverter());
converters.add(new DelayStepDefinitionConverter());
setDefaultStepDefinitionConverters(converters);
}