public class Main {

	public static void main(String[] args) {
		Map properties = new HashMap();
		properties.put("hibernate.dialect", "org.hibernate.dialect.HSQLDialect");
		EntityManagerFactory emf = Persistence.createEntityManagerFactory("test", properties);

		EntityManager em = emf.createEntityManager();

		Query query = em.createQuery("from MyEntity where id in ?1");

		query.setParameter(1, asList("alpha")); // works

		query.setParameter(new Parameter<List>() { // <--- FAILS with NPE
			public String getName() {
				return null;
			}

			public Integer getPosition() {
				return 1;
			}

			public Class<List> getParameterType() {
				return List.class;
			}
		}, asList("alpha"));
	}
}

Exception in thread "main" java.lang.NullPointerException
	at org.hibernate.query.internal.QueryParameterBindingsImpl.resolveQueryParameter(QueryParameterBindingsImpl.java:485)
	at org.hibernate.query.internal.QueryParameterBindingsImpl.getQueryParameterListBinding(QueryParameterBindingsImpl.java:474)
	at org.hibernate.query.internal.AbstractProducedQuery.locateListBinding(AbstractProducedQuery.java:463)
	at org.hibernate.query.internal.AbstractProducedQuery.setParameter(AbstractProducedQuery.java:433)
	at org.hibernate.query.internal.AbstractProducedQuery.setParameter(AbstractProducedQuery.java:104)
	at de.schauderhaft.hibernateparameters.Main.main(Main.java:28)