Florian Hof ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=6411c30... ) *created* an issue Hibernate ORM ( https://hibernate.atlassian.net/browse/HHH?atlOrigin=eyJpIjoiM2NlNGExYmJm... ) / Bug ( https://hibernate.atlassian.net/browse/HHH-16312?atlOrigin=eyJpIjoiM2NlNG... ) HHH-16312 ( https://hibernate.atlassian.net/browse/HHH-16312?atlOrigin=eyJpIjoiM2NlNG... ) function with collection makes NullPointerException ( https://hibernate.atlassian.net/browse/HHH-16312?atlOrigin=eyJpIjoiM2NlNG... ) Issue Type: Bug Affects Versions: 6.1.7 Assignee: Unassigned Components: query-criteria Created: 15/Mar/2023 06:26 AM Priority: Major Reporter: 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. protected <T> Predicate contains(Expression<Collection<T>> array, Expression<T> value) { return criteriaBuilder.equal(value, criteriaBuilder.function("ANY", Object.class, array)); } This 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 )