connector/src/main/java/org/jboss/as/connector/util/WildFlyProviderResolver.java
private List<ValidationProvider<?>> loadProviders(ClassLoader classLoader) {
        @SuppressWarnings("rawtypes")
        Iterator<ValidationProvider> providerIterator = ServiceLoader.load(ValidationProvider.class, classLoader).iterator();
        LinkedList<ValidationProvider<?>> providers = new LinkedList<ValidationProvider<?>>();

        while (providerIterator.hasNext()) {
            try {
                ValidationProvider<?> provider = providerIterator.next();

                // put Hibernate Validator to the beginning of the list
                if (provider.getClass().getName().equals("org.hibernate.validator.HibernateValidator")) {
                    providers.addFirst(provider);
                } else {
                    providers.add(provider);
                }
            } catch (ServiceConfigurationError e) {
                // ignore, because it can happen when multiple
                // providers are present and some of them are not class loader
                // compatible with our API.
            }
        }

        return providers;
    }
private List<ValidationProvider<?>> loadProviders(ClassLoader classLoader) {
        @SuppressWarnings("rawtypes")
        Iterator<ValidationProvider> providerIterator = ServiceLoader.load(ValidationProvider.class, classLoader).iterator();
        LinkedList<ValidationProvider<?>> providers = new LinkedList<ValidationProvider<?>>();

        while (providerIterator.hasNext()) {
            try {
                ValidationProvider<?> provider = providerIterator.next();

                // put Hibernate Validator to the beginning of the list
                if (provider.getClass().getName().equals("org.hibernate.validator.HibernateValidator")) {
                    providers.addFirst(provider);
                } else {
                    providers.add(provider);
                }
            } catch (ServiceConfigurationError e) {
                // ignore, because it can happen when multiple
                // providers are present and some of them are not class loader
                // compatible with our API.
            }
        }

        return providers;
    }
Retrieves the providers from the given loader, using the service loader mechanism.

@param classLoader the class loader to use
@return a list with providers retrieved via the given loader. May be empty but never {@code null}