Message Title

As a workaround a {{parameter type }} can be used.
JPA:

 
                                                                TypedQuery<Person> query = entityManager.createQuery("from Person p where p.name = coalesce(:name , p.name) ", Person.class);
 ParameterExpression<String> name = entityManager.getCriteriaBuilder().parameter(String.class, "name");
query.setParameter(name, null);
List<Person> resultList = query.getResultList();

Hibernate Session:

 
                                                                query.setParameter("name", name, StringType.INSTANCE);

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