}
        setSuiteThreadPoolSize(testNg, spec.getSuiteThreadPoolSize());
        setConfigFailurePolicy(testNg, spec.getConfigFailurePolicy());
        setPreserveOrder(testNg, spec.getPreserveOrder());
        setGroupByInstances(testNg, spec.getGroupByInstances());

        String className = spec.getThreadPoolFactoryClass();
        if (className != null && !className.isEmpty()) {

        return suiteXmlFiles;
    }

    public void setSuiteXmlFiles(List<File> suiteXmlFiles) {
        this.suiteXmlFiles = suiteXmlFiles;
    }

    @Internal
    public boolean getPreserveOrder() {
        return preserveOrder;
    }

    /**
     * Indicates whether the tests should be run in deterministic order. Preserving the order guarantees that the complete test