Object argValue;
        try {
            argType = Class.forName("org.testng.xml.XmlSuite$FailurePolicy", false, testNg.getClass().getClassLoader());
            argValue = argType.getMethod("getValidPolicy", String.class).invoke(null, value);
        } catch (Exception e) {
            // New API not found. Fallback to legacy String argument.
            argType = String.class;
            argValue = value;
        }