[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-4275) Method in entity with return type of ArrayList<Object[]> causes failure to build session factory

Method in entity with return type of ArrayList<Object[]> causes failure to build session factory ------------------------------------------------------------------------------------------------ Key: HHH-4275 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-4275 Project: Hibernate Core Issue Type: Bug Components: annotations Affects Versions: 3.5.3 Environment: Hibernate 3.2.X, no database needed (happens during factory build before connecting to db) Reporter: Clint Popetz Attachments: propertyTypeExtractorBug.tar.gz The following source: @javax.persistence.Entity public class TestEntity { @javax.persistence.Id public int Id; public java.util.ArrayList<Object[]> badMethod() { return null; } public static void main(String args[]) { new org.hibernate.cfg.AnnotationConfiguration().addAnnotatedClass(TestEntity .class).configure().buildSessionFactory(); } } will cause: java.lang.IllegalArgumentException: No PropertyTypeExtractor available for type void at org.hibernate.annotations.common.reflection.java.JavaReflectionManager.toXType(JavaReflectionManager.java:164)^M at org.hibernate.annotations.common.reflection.java.JavaXMethod.create(JavaXMethod.java:18) at org.hibernate.annotations.common.reflection.java.JavaReflectionManager.getXMethod(JavaReflectionManager.java:128) at org.hibernate.annotations.common.reflection.java.JavaXClass.getDeclaredMethods(JavaXClass.java:114) at org.hibernate.validator.ClassValidator.initValidator(ClassValidator.java:214) at org.hibernate.validator.ClassValidator.<init>(ClassValidator.java:133) at org.hibernate.validator.event.ValidateEventListener.initialize(ValidateEventListener.java:91) at org.hibernate.event.EventListeners.initializeListeners(EventListeners.java:356) at org.hibernate.cfg.Configuration.getInitializedEventListeners(Configuration.java:1304) at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1294) Changing the return type to List<Object[]> avoids the bug. Attached is a tgz of an ant-buildable project; typing "ant run" will illustrate the bug.