title: bidirectional OneToOne Mapping : From Entity to subclass and from superclass to Entity?
body: <p>I'm trying to establish a tricky bidirectional OneToOne mapping in hibernate. I got the following classes : 
  </p>
  
  <pre class="lang-java prettyprint-override"><code>@Entity
  @Inheritance(strategy = InheritanceType.JOINED)
  public class Parent {
       @OneToOne
       private AnotherEntity anotherEntity;
  }
  @Entity
  public class Child1 extends Parent{}
  
  @Entity
  public class Child2 extends Parent{}
  
  @Entity
  public class AnotherEntity {
  
      @OneToOne(mappedBy = "anotherEntity")
      private Child1 child1;
      @OneToOne(mappedBy = "anotherEntity")
      private Child2 child2;
  }
  </code></pre>
  
  <p>The problem here is when I'm launching the application : I got the following message :</p>
  
  <pre class="lang-java prettyprint-override"><code>org.hibernate.MappingException: property [anotherEntity] not found on entity [Child1]
      at org.hibernate.mapping.PersistentClass.getRecursiveProperty(PersistentClass.java:429)
      at org.hibernate.mapping.PersistentClass.getReferencedProperty(PersistentClass.java:369)
      at org.hibernate.cfg.Configuration.originalSecondPassCompile(Configuration.java:1614)
      at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1362)
      at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1727)
      at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1778)
      at org.springframework.orm.hibernate4.LocalSessionFactoryBuilder.buildSessionFactory(LocalSessionFactoryBuilder.java:189)
      at org.springframework.orm.hibernate4.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:350)
      at org.springframework.orm.hibernate4.LocalSessionFactoryBean.afterPropertiesSet(LocalSessionFactoryBean.java:335)
      at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1514)
      at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1452)
      at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)
      at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
      at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:294)
      at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225)
      at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291)
      at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
      at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:567)
      at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:913)
      at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:464)
      at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:631)
      at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:588)
      at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:645)
      at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:508)
      at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:449)
      at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:133)
      at javax.servlet.GenericServlet.init(GenericServlet.java:160)
      at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1266)
      at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1185)
      at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1080)
      at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5015)
      at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5302)
      at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
      at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:895)
      at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:871)
      at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:615)
      at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:962)
      at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:536)
      at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1471)
      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.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:301)
      at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:836)
      at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:761)
      at org.apache.catalina.manager.ManagerServlet.check(ManagerServlet.java:1436)
      at org.apache.catalina.manager.ManagerServlet.deploy(ManagerServlet.java:673)
      at org.apache.catalina.manager.ManagerServlet.doPut(ManagerServlet.java:431)
      at javax.servlet.http.HttpServlet.service(HttpServlet.java:644)
      at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
      at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
      at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
      at org.apache.catalina.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:108)
      at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
      at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
      at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:225)
      at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
      at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:581)
      at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
      at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
      at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)
      at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
      at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
      at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:999)
      at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:565)
      at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:307)
      at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
      at java.lang.Thread.run(Thread.java:662)
  </code></pre>
  
  <p>One obvious solution would be to move the <code>anotherEntity</code> field to <code>Child1</code> and <code>Child2</code>, but it would mean lose the link from <code>Parent</code> to <code>AnotherEntity</code>.</p>
  
  <p>Any help welcome. </p>