Compound ID with auto-generated part produces exception ------------------------------------------------------- Key: HHH-6044 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-6044 Project: Hibernate Core Issue Type: Bug Components: core Affects Versions: 3.5.6 Environment: java 6.23 64bit Hibernate 3.5.6 Reporter: Alex Shubert @Entity public class TestRow implements Serializable { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) private Long id; @Id private Long version; setters and getters are ommited for it's triviality } 2. creating database and table by hand #mysql -u username ... create table F_TESTROW (ID bigint not null auto_increment, VERSION bigint not null, primary key (VERSION, ID)) TestRow testRow = new TestRow(); testRow.setVersion(2L); testRow.setAddr("somewhere"); sessionFactory.openSession().save(testRow); produces java.lang.IllegalArgumentException: Can not set java.lang.Long field ru.kctsoft.fenestro.domain.strategy.TestRow.id to org.hibernate.id.IdentifierGeneratorHelper$2 at org.hibernate.property.DirectPropertyAccessor$DirectSetter.set(DirectPropertyAccessor.java:139) This is kinda frustrating. http://docs.jboss.org/hibernate/stable/annotations/reference/en/html_single/ 2.2.3.2.4. Partial identifier generation Hibernate supports the automatic generation of some of the identifier properties. Simply use the @GeneratedValue annotation on one or several id properties. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira