[hibernate-issues] [Hibernate-JIRA] Commented: (HBX-1075) Single table inhertance failed on hbm2ddl

Single table inhertance failed on hbm2ddl ----------------------------------------- Key: HBX-1075 URL: http://opensource.atlassian.com/projects/hibernate/browse/HBX-1075 Project: Hibernate Tools Issue Type: Bug Affects Versions: 3.2.1 Reporter: louie We are reporting an issue during the database schema generating process using hbm2ddl tools against some entities using single-table inheritance strategy. It works fine for the simple hierarchy entity mappings. It breaks down when we try to modeling the data using single-table inheritance in relational entities. Here is one example: The main object: @Entity @Inheritance(strategy=InheritanceType.SINGLE_TABLE) @DiscriminatorValue("S") public class MySub1 extends AbstractMySuper { @ManyToOne(fetch = FetchType.EAGER) private MySub1 underlying; @OneToMany(cascade = CascadeType.ALL, fetch = FetchType.EAGER, mappedBy="mysub1") private List<ExcludedMySub1> excludedSub1; @OneToMany(cascade = CascadeType.ALL, fetch = FetchType.EAGER, mappedBy="mysub1") private List<IncludedMySub1> includedSub1; ... } The relationship super-class: @Entity @Inheritance(strategy=InheritanceType.SINGLE_TABLE) @DiscriminatorColumn(name="myType",discriminatorType=DiscriminatorType.STRING, length=1) public abstract class AbstractMySub1 { @Id @SequenceGenerator(name = "AbstractMySub1", sequenceName = "AbstractMySub1_id") @GeneratedValue(generator = "AbstractMySub1") @Column(precision=5) private int id; @ManyToOne(cascade={CascadeType.PERSIST,CascadeType.MERGE, CascadeType.REFRESH}) private MySub1 mysub1; ... } The relationship sub-classes: @Entity @DiscriminatorValue("I") public class IncludedMySub1 extends AbstractMySub1 { } @Entity @DiscriminatorValue("E") public class ExcludedMySub1 extends AbstractMySub1 { } I got the following error: [hibernatetool] Problems in creating a configuration for JPA. Have you remembered to add hibernate EntityManager jars to the classpath ? [hibernatetool] java.lang.reflect.InvocationTargetException [hibernatetool] javax.persistence.PersistenceException: org.hibernate.AnnotationException: mappedBy reference an unknown target entity property: ExcludedMySub1.mysub1 in MySub1.excludedSub1 [hibernatetool] org.hibernate.AnnotationException: mappedBy reference an unknown target entity property: ExcludedMySub1.mysub1 in MySub1.excludedSub1 [INFO] ------------------------------------------------------------------------ [ERROR] BUILD ERROR [INFO] ------------------------------------------------------------------------ [INFO] Error executing ant tasks Embedded error: Problems in creating a configuration for JPA. Have you remembered to add hibernate EntityManager jars to the classpath ? mappedBy reference an unknown target entity property: ExcludedMySub1.mysub1 in MySub1.excludedSub1 [INFO] ------------------------------------------------------------------------ [INFO] Trace org.apache.maven.lifecycle.LifecycleExecutionException: Error executing ant tasks at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:583) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifecycle(DefaultLifecycleExecutor.java:499) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:478) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:330) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:291) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:142) at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:336) at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:129) at org.apache.maven.cli.MavenCli.main(MavenCli.java:287) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315) at org.codehaus.classworlds.Launcher.launch(Launcher.java:255) at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430) at org.codehaus.classworlds.Launcher.main(Launcher.java:375) Caused by: org.apache.maven.plugin.MojoExecutionException: Error executing ant tasks at org.apache.maven.plugin.antrun.AbstractAntMojo.executeTasks(AbstractAntMojo.java:114) at org.apache.maven.plugin.antrun.AntRunMojo.execute(AntRunMojo.java:83) at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:451) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:558) ... 16 more Caused by: Problems in creating a configuration for JPA. Have you remembered to add hibernate EntityManager jars to the classpath ? at org.hibernate.tool.ant.JPAConfigurationTask.createConfiguration(JPAConfigurationTask.java:57) at org.hibernate.tool.ant.ConfigurationTask.getConfiguration(ConfigurationTask.java:54) at org.hibernate.tool.ant.HibernateToolTask.getConfiguration(HibernateToolTask.java:302) at org.hibernate.tool.ant.Hbm2DDLExporterTask.execute(Hbm2DDLExporterTask.java:45) at org.hibernate.tool.ant.HibernateToolTask.execute(HibernateToolTask.java:186) at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275) at org.apache.tools.ant.Task.perform(Task.java:364) at org.apache.tools.ant.taskdefs.Sequential.execute(Sequential.java:64) at net.sf.antcontrib.logic.IfTask.execute(IfTask.java:197) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.tools.ant.TaskAdapter.execute(TaskAdapter.java:123) at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275) at org.apache.tools.ant.Task.perform(Task.java:364) at org.apache.tools.ant.Target.execute(Target.java:341) at org.apache.maven.plugin.antrun.AbstractAntMojo.executeTasks(AbstractAntMojo.java:108) ... 19 more Caused by: java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.hibernate.tool.ant.JPAConfigurationTask.createConfiguration(JPAConfigurationTask.java:43) ... 36 more Caused by: javax.persistence.PersistenceException: org.hibernate.AnnotationException: mappedBy reference an unknown target entity property: ExcludedMySub1.mysub1 in MySub1.excludedSub1 at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:258) ... 41 more Caused by: org.hibernate.AnnotationException: mappedBy reference an unknown target entity property:ExcludedMySub1.mysub1 in MySub1.excludedSub1 at org.hibernate.cfg.annotations.CollectionBinder.bindStarToManySecondPass(CollectionBinder.java:552) at org.hibernate.cfg.annotations.CollectionBinder$1.secondPass(CollectionBinder.java:517) at org.hibernate.cfg.CollectionSecondPass.doSecondPass(CollectionSecondPass.java:43) at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1136) at org.hibernate.cfg.AnnotationConfiguration.secondPassCompile(AnnotationConfiguration.java:316) at org.hibernate.cfg.Configuration.buildMappings(Configuration.java:1121) at org.hibernate.ejb.Ejb3Configuration.buildMappings(Ejb3Configuration.java:1269) at org.hibernate.ejb.EventListenerConfigurator.configure(EventListenerConfigurator.java:150) at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:888) at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:186) at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:246) ... 41 more [INFO] ------------------------------------------------------------------------