Entity with composite-id and serial foreign-key one-to-many set mapping can't be saved under 3.3.x and under 3.2.x can be saved but can't fetch set to father object --------------------------------------------------------------------------------------------------------------------------------------------------------------------- Key: HHH-4496 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-4496 Project: Hibernate Core Issue Type: Bug Affects Versions: 3.3.2, 3.3.1, 3.2.5 Environment: jdk1.6.0_13 windows 2003 server hibernate 3.2.5, 3.3.1, 3.3.2 database: postgreSQL8.4 Reporter: Yi, Han Mapping: <class name="ExtraInfo" table="extrainfo"> <composite-id class="ExtraInfoId" name="key"> <key-property column="sn" length="20" name="cid" type="string"/> <key-property column="composite" length="2" name="composite" type="string"/> <key-property column="fileName" length="300" name="fileName" type="string"/> </composite-id> <property name="id" generated="insert" insert="false" type="java.lang.Integer" unique="true" update="false"> <column name="id" not-null="true"/> </property> ... <setinverse="true" name="scanDatas"> <key property-ref="id"> <column name="id"/> </key> <one-to-many class="ScanData"/> </set> </class> <class name="ScanData" table="scandata"> <composite-id class="net.vuniverse.app.biochemanalysis.db.model.ScanDataId" name="key"> <key-property column="id" name="id" type="java.lang.Integer"/> <key-property column="idx" name="idx" type="java.lang.Integer"/> </composite-id> <many-to-one fetch="join" insert="false" name="extraInfo" property-ref="id" update="false"> <column name="id"/> </many-to-one> <property name="data" type="java.lang.Float"> <column name="data" precision="8" scale="8"/> </property> </class> Code: ExtraInfoId eid = new ExtraInfoId("a", "1", "aa.txt"); ExtraInfo extra = new ExtraInfo(eid); session.save(extra); session.flush(); int id = extra.getId(); for (int i = 0; i < 3; i++) { ScanData sd = new ScanData(new ScanDataId(id, 1)); sd.setData(0.5f * (i + 1)); session.save(sd); } session.flush(); extra = session.createQuery("from ExtraInfo a left join fetch a.scandatas b where a.id='" + id + "'").list().get(0); Set<ScanData> scandatas = extra.getScanDatas(); for (ScanData sd : scandatas) { System.out.println(sd.getData()); } under all version, mapping can be varified correctly. under version 3.2.5, new ExtraInfo can be saved. but the query with "left join fetch" can't return a Extra with set full of ScanData. the size of scandatas is 0. under version 3.3.x, new ExtraInfo can't be saved. and the following exception is thrown: java.lang.ClassCastException: java.lang.Integer at org.hibernate.type.ComponentType.toLoggableString(ComponentType.java:400) at org.hibernate.pretty.MessageHelper.collectionInfoString(MessageHelper.java:307) at org.hibernate.engine.Collections.processReachableCollection(Collections.java:199) at org.hibernate.event.def.FlushVisitor.processCollection(FlushVisitor.java:60) at org.hibernate.event.def.AbstractVisitor.processValue(AbstractVisitor.java:124) at org.hibernate.event.def.AbstractVisitor.processValue(AbstractVisitor.java:84) at org.hibernate.event.def.AbstractVisitor.processEntityPropertyValues(AbstractVisitor.java:78) at org.hibernate.event.def.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:161) at org.hibernate.event.def.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:219) at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:99) at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:49) at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1027) ......... -- 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