[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-1217) Problems loading lists of scalar values via EntityMode.DOM4J

Problems loading lists of scalar values via EntityMode.DOM4J ------------------------------------------------------------ Key: HHH-1217 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-1217 Project: Hibernate3 Type: Bug

Components: core Versions: 3.0.5 Environment: HIbernate 3.0.5, MySql 4.10 (Innodb), Windows XP Reporter: Patrick Casey Fix For: 3.2.2

Mappings which contain lists of scalar values (as opposed to lists of mapped objects) throw NPEs when you try to load them via a DOM4J session. **The Mapping: <class name="metadata.MetaFormDescriptor" table="metaform"> <cache usage="read-write" /> <id name="id" type="string" length="32"> <column name="id" length="32" not-null="true"/> <generator class="uuid.hex"/> </id> <property name="objectClass" column="objectclass" type="string"/> <many-to-one name="user" class="core.User" embed-xml="false"> <column name="user_id" length="32"></column> </many-to-one> <list name="listA" table="mfa" fetch="join" cascade="all-delete-orphan" embed-xml="false"> <key column="form_id" /> <index column="sequence" /> <element type="string" column="encoded"/> </list> <list name="listB" table="mfb" fetch="join" cascade="all-delete-orphan" embed-xml="false"> <key column="form_id" /> <index column="sequence" /> <element type="string" column="encoded"/> </list> <list name="listC" table="mfc" fetch="join" cascade="all-delete-orphan" embed-xml="false"> <key column="form_id" /> <index column="sequence" /> <element type="string" column="encoded"/> </list> </class> **The Code that Loads it: Session sxml = snormal.getSession(EntityMode.DOM4J); sxml.setFlushMode(FlushMode.NEVER); List l = sxml.createQuery("from " + MetaFormDescriptor.class.getCanonicalName()).list(); ** The Dump you get: Exception in thread "main" java.lang.NullPointerException at org.dom4j.tree.AbstractElement.addElement(AbstractElement.java:1169) at org.hibernate.collection.PersistentIndexedElementHolder.readFrom(PersistentIndexedElementHolder.java:135) at org.hibernate.loader.Loader.readCollectionElement(Loader.java:674) at org.hibernate.loader.Loader.readCollectionElements(Loader.java:370) at org.hibernate.loader.Loader.getRowFromResultSet(Loader.java:314) at org.hibernate.loader.Loader.doQuery(Loader.java:412) at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:218) at org.hibernate.loader.Loader.loadCollection(Loader.java:1434) at org.hibernate.loader.collection.CollectionLoader.initialize(CollectionLoader.java:99) at org.hibernate.persister.collection.AbstractCollectionPersister.initialize(AbstractCollectionPersister.java:488) at org.hibernate.event.def.DefaultInitializeCollectionEventListener.onInitializeCollection(DefaultInitializeCollectionEventListener.java:60) at org.hibernate.impl.SessionImpl.initializeCollection(SessionImpl.java:1430) at org.hibernate.type.CollectionType.getCollection(CollectionType.java:484) at org.hibernate.type.CollectionType.resolveKey(CollectionType.java:332) at org.hibernate.type.CollectionType.resolve(CollectionType.java:326) at org.hibernate.engine.TwoPhaseLoad.initializeEntity(TwoPhaseLoad.java:105) at org.hibernate.loader.Loader.initializeEntitiesAndCollections(Loader.java:530) at org.hibernate.loader.Loader.doQuery(Loader.java:436) at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:218) at org.hibernate.loader.Loader.doList(Loader.java:1593) at org.hibernate.loader.Loader.list(Loader.java:1577) at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:395) at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:271) at org.hibernate.impl.SessionImpl.list(SessionImpl.java:844) at org.hibernate.impl.QueryImpl.list(QueryImpl.java:74) at bootstrap.PrimeMover.unLoadOneFile(PrimeMover.java:41) at bootstrap.PrimeMover.unLoadSeed(PrimeMover.java:59) at zzTest.Tester.main(Tester.java:736)