Interface, query and org.hibernate.type.SerializationExcepti
Hi,
I have the following model:
@Entity()
public class NodeBO {
private NodeBO parent;
private Leaf leaf;
...
public NodeBO getParent() {
return parent;
}
public void setParent(NodeBO parent) {
this.parent = parent;
}
public Leaf getLeaf() {
return leaf;
}
public void setLeaf(Leaf leaf) {
this.leaf = leaf;
}
}Leaf is an interface. I am able to create persistent object. Then I try to retrieve some of it by a query:
Query q = em.createQuery("SELECT OBJECT(node) FROM NodeBO node");
Collection<NodeBO> roots = q.getResultList();I have the following exception:
16:05:17,451 INFO [STDOUT] org.hibernate.type.SerializationException: could not deserialize at org.hibernate.util.SerializationHelper.deserialize(SerializationHelper.java:211) at org.hibernate.util.SerializationHelper.deserialize(SerializationHelper.java:234) at org.hibernate.type.SerializableType.fromBytes(SerializableType.java:78) at org.hibernate.type.SerializableType.get(SerializableType.java:39) at org.hibernate.type.NullableType.nullSafeGet(NullableType.java:78) at org.hibernate.type.NullableType.nullSafeGet(NullableType.java:69) at org.hibernate.type.AbstractType.hydrate(AbstractType.java:81) at org.hibernate.persister.entity.AbstractEntityPersister.hydrate(AbstractEntityPersister.java:1761) at org.hibernate.loader.Loader.loadFromResultSet(Loader.java:1314) at org.hibernate.loader.Loader.instanceNotYetLoaded(Loader.java:1242) at org.hibernate.loader.Loader.getRow(Loader.java:1139) at org.hibernate.loader.Loader.getRowFromResultSet(Loader.java:552) at org.hibernate.loader.Loader.doQuery(Loader.java:666) at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:221) at org.hibernate.loader.Loader.doList(Loader.java:2001) at org.hibernate.loader.Loader.list(Loader.java:1985) at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:405) at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:293) at org.hibernate.impl.SessionImpl.list(SessionImpl.java:864) at org.hibernate.impl.QueryImpl.list(QueryImpl.java:74) at org.hibernate.ejb.QueryImpl.getResultList(QueryImpl.java:41) at fr.biomerieux.dnachip.classification.ClassificationDAOImpl.findRootNode(ClassificationDAOImpl.java:57) 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:585) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:99) at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:32) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:88) at org.jboss.aspects.tx.TxPolicy.invokeInCallerTx(TxPolicy.java:113) at org.jboss.aspects.tx.TxInterceptor$Mandatory.invoke(TxInterceptor.java:209) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:88) at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:61) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:88) at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:39) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:88) at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:63) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:88) at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:91) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:88) at org.jboss.ejb3.stateless.StatelessContainer.localInvoke(StatelessContainer.java:152) at org.jboss.ejb3.stateless.StatelessLocalProxy.invoke(StatelessLocalProxy.java:60) at $Proxy320.findRootNode(Unknown Source) at fr.biomerieux.dnachip.classification.NodeABSImpl.getRootNode(NodeABSImpl.java:78) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:99) at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:32) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:88) at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:66) at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:134) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:88) at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:61) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:88) at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:39) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:88) at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:63) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:88) at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:91) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:88) at org.jboss.ejb3.stateless.StatelessContainer.dynamicInvoke(StatelessContainer.java:195) at org.jboss.aop.Dispatcher.invoke(Dispatcher.java:107) at org.jboss.aspects.remoting.AOPRemotingInvocationHandler.invoke(AOPRemotingInvocationHandler.java:69) at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:566) at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:436) at org.jboss.remoting.transport.socket.ServerThread.processInvocation(ServerThread.java:239) at org.jboss.remoting.transport.socket.ServerThread.dorun(ServerThread.java:291) at org.jboss.remoting.transport.socket.ServerThread.run(ServerThread.java:168) Caused by: java.io.EOFException at java.io.ObjectInputStream$PeekInputStream.readFully(ObjectInputStream.java:2232) at java.io.ObjectInputStream$BlockDataInputStream.readUTFBody(ObjectInputStream.java:2967) at java.io.ObjectInputStream$BlockDataInputStream.readUTF(ObjectInputStream.java:2768) at java.io.ObjectInputStream.readUTF(ObjectInputStream.java:1021) at java.io.ObjectStreamClass.readNonProxy(ObjectStreamClass.java:573) at java.io.ObjectInputStream.readClassDescriptor(ObjectInputStream.java:778) at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1528) at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1460) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1693) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1299) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1912) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1836) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1713) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1299) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:339) at org.hibernate.util.SerializationHelper.deserialize(SerializationHelper.java:204) ... 69 more
What does it mean ? I suppose something is badly implement in my object/relational mapping but exception is not very clear. Any suggestions are welcome ...
Regards
JC
