Svetliokapralov ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=70121%3... ) *updated* an issue Hibernate ORM ( https://hibernate.atlassian.net/browse/HHH?atlOrigin=eyJpIjoiNWQwN2NhODI4... ) / Bug ( https://hibernate.atlassian.net/browse/HHH-16236?atlOrigin=eyJpIjoiNWQwN2... ) HHH-16236 ( https://hibernate.atlassian.net/browse/HHH-16236?atlOrigin=eyJpIjoiNWQwN2... ) Cannot use lists and Enums in where clause ( https://hibernate.atlassian.net/browse/HHH-16236?atlOrigin=eyJpIjoiNWQwN2... ) Change By: Svetliokapralov ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=70121%3... ) This is a sample project demonstrating several Hibernate 6 problems related to using 'IN (:list)' and Enums (for example select i from ItemEntity where i.status = :status) in where clause: [https://github.com/svkap/hibernate-6-bug-sample|https://github.com/svkap/...] The project uses docker-compose for spinning up PostgreSQL + Flyway for db initialization. It uses spring-data and lombok. It seems there are problems when lists are used in queries and with coalesce. The Entities are fairly simple but have different column types. There are 3 different entity definition: 1. Using PostgreSQL enum + @Enumerated(EnumType.STRING) 2. Using varchar column + @Convert(...) 3. Using int column + @Convert(...) — The sample project tests several different queries and scenarios. Result summary: 1. Entity creation work for all scenarios. 2. Entity update work for all scenarios. 3. Return entity, use SpEl ( (:#{#list == null} = true) OR (i.list IN (:list)) ) works in JPQL 4. Pass Integer/String to native query works for coalesce and SpEl only when projection is returned — The exceptions seem the same when using PostgreSQL enum, Converter + String and Converter + Integer: 1. Return entity, native query + pass enums to repository method + ( (coalesce(:list, null) is null) OR (i.list IN (:list)) ) java.lang.NullPointerException: Cannot invoke "org.hibernate.metamodel.mapping.JdbcMapping.getJdbcValueBinder()" because "jdbcMapping" is null 2. Return entity, native query + pass strings to repository method + ( (coalesce(:list, null) is null) OR (i.list IN (:list)) ) org.springframework.dao.InvalidDataAccessResourceUsageException: Unable to find column position by name: id; SQL [n/a] 3. Return entity, native query + pass null to repository method + ( (coalesce(:list, null) is null) OR (i.list IN (:list)) ) org.springframework.dao.InvalidDataAccessResourceUsageException: Unable to find column position by name: id; SQL [n/a] 4. Return entity, native query + pass enums to repository method + ( (:#{#list == null} = true) OR (i.list IN (:list)) ) java.lang.NullPointerException: Cannot invoke "org.hibernate.metamodel.mapping.JdbcMapping.getJdbcValueBinder()" because "jdbcMapping" is null 5. Return entity, native query + pass null to repository method + ( (:#{#list == null} = true) OR (i.list IN (:list)) ) org.springframework.dao.InvalidDataAccessResourceUsageException: Unable to find column position by name: id; SQL [n/a] 6. Return entity, native query + pass enum to repository method java.lang.NullPointerException: Cannot invoke "org.hibernate.metamodel.mapping.JdbcMapping.getJdbcValueBinder()" because "jdbcMapping" is null 7. Return entity, native query + pass string to repository method + ( (:#{#list == null} = true) OR (i.list IN (:list)) ) org.springframework.dao.InvalidDataAccessResourceUsageException: Unable to find column position by name: id; SQL [n/a] 8. Return entity, JPQL query + pass enum to repository method + ( (coalesce(:list, null) is null) OR (i.list IN (:list)) ) java.lang.ClassCastException: class java.util.ImmutableCollections$List12 cannot be cast to class java.lang.Enum (java.util.ImmutableCollections$List12 and java.lang.Enum are in module java.base of loader 'bootstrap') 9. Return projection, native query + pass enum to repository method + ( (:#{#list == null} = true) OR (i.list IN (:list)) ) java.lang.NullPointerException: Cannot invoke "org.hibernate.metamodel.mapping.JdbcMapping.getJdbcValueBinder()" because "jdbcMapping" is null ( https://hibernate.atlassian.net/browse/HHH-16236#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-16236#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- sha1:65be9f2 )