private void setSuiteThreadPoolSize(TestNG testNg, int suiteThreadPoolSize) {
        if (suiteThreadPoolSize < 1) {
            throw new InvalidUserDataException("suiteThreadPoolSize must be greater than or equal to 1.");
        }

        try {
            JavaMethod.of(TestNG.class, Object.class, "setSuiteThreadPoolSize", int.class).invoke(testNg, suiteThreadPoolSize);
        } catch (NoSuchMethodException e) {