Index: topia/src/java/org/codelutin/topia/persistence/jdo/AbstractJDOEntity.java
diff -u topia/src/java/org/codelutin/topia/persistence/jdo/AbstractJDOEntity.java:1.1 topia/src/java/org/codelutin/topia/persistence/jdo/AbstractJDOEntity.java:1.2
--- topia/src/java/org/codelutin/topia/persistence/jdo/AbstractJDOEntity.java:1.1	Thu Jul 15 13:13:13 2004
+++ topia/src/java/org/codelutin/topia/persistence/jdo/AbstractJDOEntity.java	Fri Jul 30 14:38:59 2004
@@ -23,10 +23,10 @@
  *
  * @author Benjamin Poussin <poussin@codelutin.com>
  * Copyright Code Lutin
- * @version $Revision: 1.1 $
+ * @version $Revision: 1.2 $
  *
- * Mise a jour: $Date: 2004/07/15 13:13:13 $
- * par : $Author: bpoussin $
+ * Mise a jour: $Date: 2004/07/30 14:38:59 $
+ * par : $Author: pineau $
  */
 
 package org.codelutin.topia.persistence.jdo;
@@ -38,6 +38,7 @@
 import org.codelutin.topia.TopiaEntity;
 import org.codelutin.topia.TopiaUser;
 import org.codelutin.topia.TopiaException;
+
 import java.util.HashSet;
 
 public abstract class AbstractJDOEntity implements JDOEntity { // AbstractJDOEntity
@@ -55,7 +56,7 @@
     }
     public void set_topiaId_(String topiaId){
         if(_topiaId_ != null && !_topiaId_.equals(topiaId)){
-            throw new RuntimeException("It's not allowed to change topiaId");
+            throw new RuntimeException("You're not allowed to change topiaId");
         }
         this._topiaId_ = topiaId;
     }
@@ -95,8 +96,8 @@
     public void update(TopiaEntity entity, HashSet done) throws TopiaException {
         this._topiaId_ = entity.get_topiaId_();
         this._version_ = entity.get_version_();
-        this._creationDate_ = entity.get_creationDate_();
-        this._lastUpdateDate_ = entity.get_lastUpdateDate_();
+        this._creationDate_ = (Date) entity.get_creationDate_().clone();
+        this._lastUpdateDate_ = (Date) entity.get_lastUpdateDate_().clone();
         this._lastUpdateUser_ = entity.get_lastUpdateUser_();
     }
 

Index: topia/src/java/org/codelutin/topia/persistence/jdo/JDOPersistenceHelper.java
diff -u topia/src/java/org/codelutin/topia/persistence/jdo/JDOPersistenceHelper.java:1.1 topia/src/java/org/codelutin/topia/persistence/jdo/JDOPersistenceHelper.java:1.2
--- topia/src/java/org/codelutin/topia/persistence/jdo/JDOPersistenceHelper.java:1.1	Thu Jul 15 13:13:13 2004
+++ topia/src/java/org/codelutin/topia/persistence/jdo/JDOPersistenceHelper.java	Fri Jul 30 14:38:59 2004
@@ -23,39 +23,40 @@
  *
  * @author Benjamin Poussin <poussin@codelutin.com>
  * Copyright Code Lutin
- * @version $Revision: 1.1 $
+ * @version $Revision: 1.2 $
  *
- * Mise a jour: $Date: 2004/07/15 13:13:13 $
- * par : $Author: bpoussin $
+ * Mise a jour: $Date: 2004/07/30 14:38:59 $
+ * par : $Author: pineau $
  */
 
 package org.codelutin.topia.persistence.jdo;
 
-import org.codelutin.util.VersionNumberUtil;
-import org.codelutin.topia.persistence.PersistenceHelper;
-import org.codelutin.topia.TopiaContext;
-import org.codelutin.topia.TopiaId;
-import org.codelutin.topia.TopiaQuery;
-import org.codelutin.topia.TopiaEntity;
-import org.codelutin.topia.TopiaException;
-import org.codelutin.topia.TopiaNotFoundException;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashSet;
+import java.util.Iterator;
 import java.util.List;
+import java.util.Properties;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
 import javax.jdo.JDOHelper;
-import javax.jdo.Transaction;
-import javax.jdo.Query;
 import javax.jdo.PersistenceManager;
 import javax.jdo.PersistenceManagerFactory;
-import java.util.Properties;
-import java.util.HashSet;
-import java.util.Iterator;
+import javax.jdo.Query;
+import javax.jdo.Transaction;
+
+import org.codelutin.queryjdo.JDOQueryHelper;
 import org.codelutin.queryparser.QueryHelper;
 import org.codelutin.queryparser.QueryHelperException;
-import org.codelutin.queryjdo.JDOQueryHelper;
-import java.util.Collection;
-import java.util.ArrayList;
-import java.io.IOException;
-import java.util.logging.Level;
-import java.util.logging.Logger;
+import org.codelutin.topia.TopiaContext;
+import org.codelutin.topia.TopiaEntity;
+import org.codelutin.topia.TopiaException;
+import org.codelutin.topia.TopiaId;
+import org.codelutin.topia.TopiaQuery;
+import org.codelutin.topia.persistence.PersistenceHelper;
+import org.codelutin.util.VersionNumberUtil;
 
 public class JDOPersistenceHelper implements PersistenceHelper { // JDOPersistenceHelper
 
@@ -121,12 +122,11 @@
 
             if(entity instanceof AbstractLazyEntity){
                 AbstractLazyEntity ale = (AbstractLazyEntity) entity;
-                if(!ale.isLoaded()){
+                if(!ale.isLoaded()) {
                     // if is not loaded, then no modification done
                     return jdoEntity;
-                }else{
-                    entity = ale.getEntity();
                 }
+                entity = ale.getEntity();
             }
 
 
@@ -170,8 +170,8 @@
     }
 
     public TopiaEntity update(TopiaEntity entity) throws TopiaException{
-        if ("0".equals(entity.get_version_())) {
-            throw new TopiaException("Can't persist " + entity + " has it seems to exist, please use update instead !");
+        if (isNewObject(entity)) {
+            throw new TopiaException("Can't update " + entity + " has it does not seem to exist, please use makePersistent instead !");
         }
         Transaction transaction = pm.currentTransaction();
         transaction.begin();