public ClosureBackedRuleAction(Class<T> subjectType, Closure<?> closure) {
        this.subjectType = subjectType;
        this.closure = closure;
        this.inputTypes = parseInputTypes(closure);
    }

    @Override
    public List<Class<?>> getInputTypes() {
        return inputTypes;
    }

    @Override
    public void execute(T subject, List<?> inputs) {