RE: Hibernate issues

Pete,

You should be able to delete everything in /work or /temp to clean up
sessions and cache.
 
David Morris

-----Original Message-----
From: java400-l-bounces@xxxxxxxxxxxx
[mailto:java400-l-bounces@xxxxxxxxxxxx] On Behalf Of Pete Helgren
Sent: Friday, September 15, 2006 10:13 AM
To: Java Programming on and around the iSeries / AS400
Subject: Re: Hibernate issues

Al and David,

We are using Hibernate version 3.2.0 with Tomcat 5.0.28.  The box is a 
520 i5 V5R3M0 (back level on CUME's and groups) .  JDK 1.4.

Here is what we experienced:

We have several applications (.jsp) and we use Hibernate so we can map 
between different DB schemas a customer may have.  We deployed the 
applications by dropping the wars into the webapps folder.  All was 
well. The applications ran fine but we saw some errors in the job 
indicating some missing files.  We determined that there was a library 
list problem (set by some Tomcat startup code) so we ended Tomcat and 
restarted it.

After that point in time, the applications would no longer run.  Upon 
closer inspection, we saw the following in the catalina.out log:


%%%% Error Creating SessionFactory %%%% 
                                        
org.hibernate.InvalidMappingException: Could not parse mapping document 
from resource
 at java.lang.Throwable.<init>(Throwable.java:195) 
                             
 at java.lang.Exception.<init>(Exception.java:41) 
                              
 at java.lang.RuntimeException.<init>(RuntimeException.java:43) 
                
 at 
org.hibernate.exception.NestableRuntimeException.<init>(NestableRuntimeE
xcep 

 at org.hibernate.HibernateException.<init>(HibernateException.java:22) 
        
 at org.hibernate.MappingException.<init>(MappingException.java:14) 
            
 at 
org.hibernate.InvalidMappingException.<init>(InvalidMappingException.jav
a:16 

 at 
org.hibernate.InvalidMappingException.<init>(InvalidMappingException.jav
a:32 

 at org.hibernate.cfg.Configuration.addResource(Configuration.java:523) 
        
 at 
org.hibernate.cfg.Configuration.parseMappingElement(Configuration.java:1
511) 

 at 
org.hibernate.cfg.Configuration.parseSessionFactory(Configuration.java:1
479)
......

Caused by: org.hibernate.DuplicateMappingException: Duplicate 
class/entity mapping org.edtechlabs.appselfserv.dataobjects.Answer

The mapping files are fine and the weird thing is that each invocation 
identifies a *different* mapping file it is unhappy with.  Seems almost 
random

What session files are you referring to David?  I can take a look at
those.

Pete