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haam
 Post subject: IllegalArgumentException, backref bug?
PostPosted: Tue Apr 24, 2007 1:44 pm 
Newbie

Joined: Tue Apr 24, 2007 2:19 am
Posts: 3
I am using JBoss 4.0.5 with EJB3 RC9 Patch 1. I tried upgrading to hibernate core 3.2.3, annotations 3.3.0 and entity-manager 3.3.1 and it broke my code.

It was working fine with core 3.2.0, annotation 3.2.1 and entity-manager 3.2.1, but broke on versions after these.

I think there is a bug in BasicPropertyAccessor being passed a wrong target (around line 145). Instead of being passed an instance of my primary key (for which the reflection method was created), it was passed an instance of org.hibernate.property.BackrefPropertyAccessor$1.

I created a greatly simplified test case that can duplicate this problem (code to follow).

I have a class Foo, with an embedded FooPK, containing a collection of Bar entities (with embedded BarPK). Bar objects contains a FooPK as a backref to the containing Foo object. The problem is triggered when I call the entity manager to delete the contained Bar objects.

Here's the error log from the specially instrumented BasicPropertyAccessor:

Code:
2007-04-23 23:09:19,868 ERROR [org.hibernate.property.BasicPropertyAccessor] IllegalArgumentException in class: com.lattiss.foo.FooPK, getter method of property: primaryKey, method="public java.lang.String com.lattiss.foo.FooPK.getPrimaryKey()", target.class=org.hibernate.property.BackrefPropertyAccessor$1

Notice the reflection method is for FooPK, but the invoke() was passed a BackrefPropertyAccessor$1.

Here's the JBoss stack trace:
Code:
javax.persistence.PersistenceException: org.hibernate.PropertyAccessException: IllegalArgumentException occurred calling getter of com.lattiss.foo.FooPK.primaryKey" type="javax.ejb.EJBException">javax.ejb.EJBException: javax.persistence.PersistenceException: org.hibernate.PropertyAccessException: IllegalArgumentException occurred calling getter of com.lattiss.foo.FooPK.primaryKey
   at org.jboss.ejb3.tx.Ejb3TxPolicy.handleExceptionInOurTx(Ejb3TxPolicy.java:69)
   at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:83)
   at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:191)
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
   at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76)
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
   at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:62)
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
   at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:77)
   at org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(Ejb3AuthenticationInterceptor.java:102)
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
   at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:47)
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
   at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106)
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
   at org.jboss.ejb3.stateless.StatelessContainer.dynamicInvoke(StatelessContainer.java:263)
   at org.jboss.aop.Dispatcher.invoke(Dispatcher.java:106)
   at org.jboss.aspects.remoting.AOPRemotingInvocationHandler.invoke(AOPRemotingInvocationHandler.java:82)
   at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:828)
   at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:681)
   at org.jboss.remoting.transport.socket.ServerThread.processInvocation(ServerThread.java:358)
   at org.jboss.remoting.transport.socket.ServerThread.dorun(ServerThread.java:412)
   at org.jboss.remoting.transport.socket.ServerThread.run(ServerThread.java:239)
Caused by: javax.persistence.PersistenceException: org.hibernate.PropertyAccessException: IllegalArgumentException occurred calling getter of com.lattiss.foo.FooPK.primaryKey
   at org.hibernate.ejb.AbstractEntityManagerImpl.throwPersistenceException(AbstractEntityManagerImpl.java:630)
   at org.hibernate.ejb.AbstractEntityManagerImpl.remove(AbstractEntityManagerImpl.java:252)
   at org.jboss.ejb3.entity.TransactionScopedEntityManager.remove(TransactionScopedEntityManager.java:187)
   at com.lattiss.foo.FooControllerBean.remove(FooControllerBean.java:66)
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:112)
   at org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:166)
   at org.jboss.ejb3.interceptor.EJB3InterceptorsInterceptor.invoke(EJB3InterceptorsInterceptor.java:63)
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
   at org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:54)
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
   at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:46)
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
   at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:79)
   at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:191)
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
   at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76)
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
   at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:62)
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
   at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:77)
   at org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(Ejb3AuthenticationInterceptor.java:102)
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
   at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:47)
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
   at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106)
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
   at org.jboss.ejb3.stateless.StatelessContainer.dynamicInvoke(StatelessContainer.java:263)
   at org.jboss.aop.Dispatcher.invoke(Dispatcher.java:106)
   at org.jboss.aspects.remoting.AOPRemotingInvocationHandler.invoke(AOPRemotingInvocationHandler.java:82)
   at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:828)
   at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:681)
   at org.jboss.remoting.transport.socket.ServerThread.processInvocation(ServerThread.java:358)
   at org.jboss.remoting.transport.socket.ServerThread.dorun(ServerThread.java:412)
   at org.jboss.remoting.transport.socket.ServerThread.run(ServerThread.java:239)
   at org.jboss.remoting.RemoteClientInvoker.invoke(RemoteClientInvoker.java:190)
   at org.jboss.remoting.Client.invoke(Client.java:525)
   at org.jboss.remoting.Client.invoke(Client.java:488)
   at org.jboss.aspects.remoting.InvokeRemoteInterceptor.invoke(InvokeRemoteInterceptor.java:55)
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
   at org.jboss.aspects.tx.ClientTxPropagationInterceptor.invoke(ClientTxPropagationInterceptor.java:61)
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
   at org.jboss.aspects.security.SecurityClientInterceptor.invoke(SecurityClientInterceptor.java:53)
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
   at org.jboss.ejb3.remoting.IsLocalInterceptor.invoke(IsLocalInterceptor.java:77)
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
   at org.jboss.ejb3.stateless.StatelessRemoteProxy.invoke(StatelessRemoteProxy.java:102)
   at $Proxy5.remove(Unknown Source)
   at com.lattiss.foo.FooTest.testX(FooTest.java:36)
Caused by: org.hibernate.PropertyAccessException: IllegalArgumentException occurred calling getter of com.lattiss.foo.FooPK.primaryKey
   at org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:173)
   at org.hibernate.tuple.component.AbstractComponentTuplizer.getPropertyValue(AbstractComponentTuplizer.java:64)
   at org.hibernate.tuple.component.AbstractComponentTuplizer.getPropertyValues(AbstractComponentTuplizer.java:70)
   at org.hibernate.tuple.component.PojoComponentTuplizer.getPropertyValues(PojoComponentTuplizer.java:83)
   at org.hibernate.type.ComponentType.getPropertyValues(ComponentType.java:353)
   at org.hibernate.type.ComponentType.getPropertyValues(ComponentType.java:348)
   at org.hibernate.engine.ForeignKeys$Nullifier.nullifyTransientReferences(ForeignKeys.java:77)
   at org.hibernate.engine.ForeignKeys$Nullifier.nullifyTransientReferences(ForeignKeys.java:47)
   at org.hibernate.event.def.DefaultDeleteEventListener.deleteEntity(DefaultDeleteEventListener.java:248)
   at org.hibernate.event.def.DefaultDeleteEventListener.onDelete(DefaultDeleteEventListener.java:141)
   at org.hibernate.event.def.DefaultDeleteEventListener.onDelete(DefaultDeleteEventListener.java:52)
   at org.hibernate.impl.SessionImpl.fireDelete(SessionImpl.java:766)
   at org.hibernate.impl.SessionImpl.delete(SessionImpl.java:744)
   at org.hibernate.ejb.AbstractEntityManagerImpl.remove(AbstractEntityManagerImpl.java:246)
   at org.jboss.ejb3.entity.TransactionScopedEntityManager.remove(TransactionScopedEntityManager.java:187)
   at com.lattiss.foo.FooControllerBean.remove(FooControllerBean.java:66)
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:112)
   at org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:166)
   at org.jboss.ejb3.interceptor.EJB3InterceptorsInterceptor.invoke(EJB3InterceptorsInterceptor.java:63)
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
   at org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:54)
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
   at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:46)
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
   at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:79)
   at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:191)
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
   at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76)
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
   at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:62)
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
   at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:77)
   at org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(Ejb3AuthenticationInterceptor.java:102)
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
   at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:47)
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
   at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106)
   at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
   at org.jboss.ejb3.stateless.StatelessContainer.dynamicInvoke(StatelessContainer.java:263)
   at org.jboss.aop.Dispatcher.invoke(Dispatcher.java:106)
   at org.jboss.aspects.remoting.AOPRemotingInvocationHandler.invoke(AOPRemotingInvocationHandler.java:82)
   at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:828)
   at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:681)
   at org.jboss.remoting.transport.socket.ServerThread.processInvocation(ServerThread.java:358)
   at org.jboss.remoting.transport.socket.ServerThread.dorun(ServerThread.java:412)
   at org.jboss.remoting.transport.socket.ServerThread.run(ServerThread.java:239)
Caused by: java.lang.IllegalArgumentException: java.lang.ClassCastException@ad2036
   at org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:145)


Here's the simplified FooPK class:
Code:
package com.lattiss.foo;

import java.io.Serializable;

import javax.persistence.Column;
import javax.persistence.Embeddable;

@Embeddable
public class FooPK implements Serializable
{
  public FooPK()
  {
  }

  @Override
  public boolean equals(Object obj)
  {
    if (this == obj)
      return true;

    if (obj instanceof FooPK)
      return m_pk.equals(((FooPK) obj).m_pk);

    return false;
  }

  @Column(name="OID")
  public String getPrimaryKey()
  {
    return m_pk;
  }

  @Override
  public int hashCode()
  {
    return m_pk.hashCode();
  }

  public void setPrimaryKey(String s)
  {
    m_pk = s;
  }

  private String m_pk;

  private static final long serialVersionUID = 1L;
}

Here's the sample contained class, Bar. It's PK definition is similar to FooPK.
Code:
package com.lattiss.foo;

import java.io.Serializable;

import javax.persistence.*;

@Entity
@Table(name="BAR")
public class Bar implements Serializable
{
  public Bar()
  {
  }

  @EmbeddedId
  public BarPK getBarPk()
  {
    return m_barPk;
  }

  @Column(name="DESCRIPTION")
  public String getDescription()
  {
    return m_description;
  }

  @Embedded
  @AttributeOverride(name="primaryKey", column=@Column(name="FOO_OID", nullable=false, insertable=false, updatable=false))
  public FooPK getFooPk()
  {
    return m_fooPk;
  }

  public void setBarPk(BarPK barPk)
  {
    m_barPk = barPk;
  }

  public void setDescription(String description)
  {
    m_description = description;
  }

  public void setFooPk(FooPK fooPk)
  {
    m_fooPk = fooPk;
  }

  private BarPK m_barPk;
  private String m_description;
  private FooPK m_fooPk;

  private static final long serialVersionUID = 1L;
}

Here's the containing class, Foo:
Code:
package com.lattiss.foo;

import java.io.Serializable;

import java.util.ArrayList;
import java.util.List;

import javax.persistence.*;

@Entity
@Table(name="FOO")
public class Foo implements Serializable
{
  public Foo()
  {
  }

  @OneToMany(cascade={CascadeType.ALL}, fetch=FetchType.LAZY)
  @JoinColumn(name="FOO_OID", nullable=false, updatable=false)
  public List<Bar> getBars()
  {
    return m_bars;
  }

  @Column(name="DESCRIPTION")
  public String getDescription()
  {
    return m_description;
  }

  @EmbeddedId
  public FooPK getFooPk()
  {
    return m_fooPk;
  }

  public void setBars(List<Bar> bars)
  {
    m_bars = bars;
  }

  public void setDescription(String description)
  {
    m_description = description;
  }

  public void setFooPk(FooPK pk)
  {
    m_fooPk = pk;
  }

  private FooPK m_fooPk;
  private String m_description;
  private List<Bar> m_bars = new ArrayList<Bar>();

  private static final long serialVersionUID = 1L;
}

The code that trigged the problem:
Code:
  @TransactionAttribute(TransactionAttributeType.REQUIRED)
  public void remove()
  {
    FooPK fooPk = new FooPK();
    fooPk.setPrimaryKey("1");

    Foo foo = m_entityManager.find(Foo.class, fooPk);

    List<Bar> bars = foo.getBars();

    for (Bar b : bars)
    {
      m_entityManager.remove(b);
    }
  }


I would like to know if this can be scheduled for a fix soon.

Thanks,
Haam
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dnoyeb
 Post subject:
PostPosted: Wed Jul 04, 2007 1:22 pm 
Beginner
Beginner

Joined: Sat Dec 16, 2006 1:52 pm
Posts: 40
Did you find any workaround for this? Or ever get a bugfix? I am having the same issue and I can not figure out how to get past it.

I fellback to 3.2.0 and indeed my program is working again. Did you file a bugreport on this?
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haam
 Post subject: no fix, no acknowledgement, still on 3.2.0
PostPosted: Thu Jul 05, 2007 1:35 pm 
Newbie

Joined: Tue Apr 24, 2007 2:19 am
Posts: 3
Still on 3.2.0.

I did not file a bug (how does one do that?) I was hoping one of the hibernate developers would at least acknowledge it's a bug, but so far, nothing.

Perhaps now that other people are running into the same problem, there might be some action on this.
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 Profile  
 
dnoyeb
 Post subject:
PostPosted: Thu Jul 05, 2007 9:15 pm 
Beginner
Beginner

Joined: Sat Dec 16, 2006 1:52 pm
Posts: 40
I am following this issue which seems to be the one in question.

http://opensource.atlassian.com/project ... e/HHH-2690
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