Collection mapped with javax.persistence.MapKey isn't loaded properly. ---------------------------------------------------------------------- Key: ANN-491 URL: http://opensource.atlassian.com/projects/hibernate/browse/ANN-491 Project: Hibernate Annotations Type: Bug Versions: 3.2.0.ga Reporter: Magnus Heino http://forum.hibernate.org/viewtopic.php?t=966948 Add this test to IndexedCollectionTest.java: public void testMapKeyLoad() throws Exception { Session s; Transaction tx; s = openSession(); tx = s.beginTransaction(); Software hibernate = new Software(); hibernate.setName( "Hibernate" ); Version v1 = new Version(); v1.setCodeName( "HumbaHumba" ); v1.setNumber( "1.0" ); v1.setSoftware( hibernate ); hibernate.addVersion(v1); s.persist(hibernate); s.persist(v1); tx.commit(); s.clear(); tx = s.beginTransaction(); hibernate = (Software) s.get( Software.class, "Hibernate" ); Version v2 = new Version(); v2.setCodeName( "HumbaHumba" ); v2.setNumber( "2.0" ); v2.setSoftware( hibernate ); hibernate.addVersion(v2); assertEquals("One loaded persisted version, and one just added", 2, hibernate.getVersions().size() ); tx.commit(); s.clear(); tx = s.beginTransaction(); hibernate = (Software) s.get( Software.class, "Hibernate" ); for ( Version v : hibernate.getVersions().values() ) { s.delete( v ); } s.delete( hibernate ); tx.commit(); s.close(); } And modify Software.java to look like this: //$Id: Software.java 9795 2006-04-26 06:41:18Z epbernard $ package org.hibernate.test.annotations.indexcoll; import java.util.HashMap; import java.util.Map; import javax.persistence.Entity; import javax.persistence.Id; import javax.persistence.MapKey; import javax.persistence.OneToMany; /** * @author Emmanuel Bernard */ @Entity public class Software { private String name; private Map<String, Version> versions; public Software() { this.versions = new HashMap<String, Version>(); } @Id public String getName() { return name; } public void setName(String name) { this.name = name; } @OneToMany(mappedBy = "software") @MapKey(name = "codeName") public Map<String, Version> getVersions() { return versions; } public void setVersions(Map<String, Version> versions) { this.versions = versions; } public void addVersion(Version version) { this.getVersions().put(version.getCodeName(), version); } } AFAIK addVersion should be able to do this.version.put too if you read the spec, but it doesn't work with the getter as it is now either. -- 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