Florian Hof ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=6411c30... ) *updated* an issue Hibernate ORM ( https://hibernate.atlassian.net/browse/HHH?atlOrigin=eyJpIjoiOGZmYjVjMDEw... ) / Bug ( https://hibernate.atlassian.net/browse/HHH-16312?atlOrigin=eyJpIjoiOGZmYj... ) HHH-16312 ( https://hibernate.atlassian.net/browse/HHH-16312?atlOrigin=eyJpIjoiOGZmYj... ) function with collection makes NullPointerException ( https://hibernate.atlassian.net/browse/HHH-16312?atlOrigin=eyJpIjoiOGZmYj... ) Change By: Florian Hof ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=6411c30... ) With criteria builder, I’m calling a function which has a collection as parameter. This fails with a NullPointerException when hibernate validates the types. My code (simplified), where I define a generic “contains in array” check. {code:java}    protected <T> Predicate contains(Expression<Collection<T>> array, T value) { return criteriaBuilder.equal(criteriaBuilder.literal(value), criteriaBuilder.function("ANY", Object.class, array)); }{code} This My goal is to query an array-column, something like: struture with an array-column: {{ALTER TABLE person ADD COLUMN tel_numbers VARCHAR ARRAY;}} with Postgres specific: {{SELECT * FROM person p WHERE '+123456' = ANY(p.tel_numbers)}} or eventually SQL-Standard: {{SELECT * FROM person p WHERE '+123456' = ANY(SELECT * FROM UNNEST(p.tel_numbers));}} The function definition fails at {{ArgumentTypesValidator.validate:92}} with a {{NullPointerException}}: {{final JdbcType jdbcType = getJdbcType( queryEngine, argument, indicators, javaType );}} // → null {{jdbcType.getDefaultSqlTypeCode()}} → NullPointerException The {{ArgumentTypesValidator.getJdbcType:139}} calls {{javaType.getRecommendedJdbcType}} and {{CollectionJavaType.getRecommendedJdbcType}} always returns {{null}}. I think that {{ArgumentTypesValidator.validate}} should handle a {{null}} jdbcType properly, in that case not doing the validation. Or what is your opinion? Is there a workaround? ( https://hibernate.atlassian.net/browse/HHH-16312#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-16312#add-comment?atlOrigin=ey... ) Get Jira notifications on your phone! Download the Jira Cloud app for Android ( https://play.google.com/store/apps/details?id=com.atlassian.android.jira.... ) or iOS ( https://itunes.apple.com/app/apple-store/id1006972087?pt=696495&ct=Em... ) This message was sent by Atlassian Jira (v1001.0.0-SNAPSHOT#100217- sha1:fd7c927 )