[Hibernate-issues] [Hibernate-JIRA] Commented: (HHH-779) Assertion failure occured with Hibernate 3 saving objects

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The following comment has been added to this issue:

     Author: Alessandro Rizzi
    Created: Tue, 26 Jul 2005 12:14 PM
       Body:
Sorry but I do not understand. Do you mean that now I will always have the IllegalArgumentException? 
Or only in the case reported above?
In both cases, why?
Why it works right in Hibernate 2.1.8, and throws the exception now?
And, most important: why 1 overload of session.load() works and the other one cause an exception? (While in 2.1.8 both works right).
Is there any mistake in my code?

Reagards
Alessandro Rizzi
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View the issue:
  http://opensource.atlassian.com/projects/hibernate/browse/HHH-779

Here is an overview of the issue:
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        Key: HHH-779
    Summary: Assertion failure occured with Hibernate 3 saving objects
       Type: Bug

     Status: Closed
   Priority: Major
 Resolution: FIXED

 Original Estimate: Unknown
 Time Spent: Unknown
  Remaining: Unknown

    Project: Hibernate3
 Components: 
             core
   Fix Fors:
             3.1 beta 2
   Versions:
             3.0.5

   Assignee: 
   Reporter: Alessandro Rizzi

    Created: Fri, 22 Jul 2005 9:56 AM
    Updated: Tue, 26 Jul 2005 12:14 PM
Environment: Hibernate 3.0.5, SQL Server 2000 SP2 

Description:
I have this exception:

SEVERE: an assertion failure occured (this may indicate a bug in Hibernate, but is more likely due to unsafe use of the session) 

org.hibernate.AssertionFailure: null identifier 
at org.hibernate.engine.EntityKey.<init>(EntityKey.java:33) 
at org.hibernate.event.def.DefaultEvictEventListener.onEvict(DefaultEvictEventListener.java:51) 
at org.hibernate.impl.SessionImpl.evict(SessionImpl.java:702) 
at testHib3.starter.go(starter.java:69) 
at testHib3.starter.main(starter.java:22) 
org.hibernate.AssertionFailure: null identifier 
at org.hibernate.engine.EntityKey.<init>(EntityKey.java:33) 
at org.hibernate.event.def.DefaultEvictEventListener.onEvict(DefaultEvictEventListener.java:51) 
at org.hibernate.impl.SessionImpl.evict(SessionImpl.java:702) 
at testHib3.starter.go(starter.java:69) 
at testHib3.starter.main(starter.java:22) 

with this code:

Session hibSession = sf.openSession(); 
tstDACmain m = (tstDACmain)hibSession.load( tstDACmain.class, new Long(1) ); 
m.setId( null ); 
hibSession.evict( m); 
hibSession.saveOrUpdate( m ); 
hibSession.flush(); 

and this mapping document:

<?xml version="1.0" encoding="UTF-8"?> 
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 1.1//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"> 
<hibernate-mapping> 
<class name="testHib3.tstDACmain" table="tst_main"> 
<id column="id" name="id" type="long"> 
<generator class="native"></generator> 
</id> 
<property column="des" length="50" name="des" not-null="false" type="string"/> 
</class> 
</hibernate-mapping>


Notice that if you change the code like this: 

From: 
tstDACmain m = (tstDACmain)hibSession.load( tstDACmain.class, new Long(1) ); 

To: 
tstDACmain m = new tstDACmain(); 
hibSession.load( m, new Long(1) ); 

then it works perfectly. No error occurs, and the object is saved in the database. 

I did not have this error on Hibernate 2.1.8. 

Regards
Alessandro Rizzi



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