Hello 

I am currently working with MDR (release build) and the 
CWM metamodel. 
I have a strange behavior (duplicate items) with the 
exported XMI file when using TransformationMap and 
ClassifierMap with the following code. What this code does 
is simply create a TransformationMap and add two 
ClassifierMaps to it.

                TransformationPackage tfm = 
cwmPackage.getTransformation(); 
                TransformationMap tfmMap = 
                        tfm.getTransformationMap
().createTransformationMap(); 
                tfmMap.setName("tfmMap"); 

                ClassifierMap clsMap1 = 
tfm.getClassifierMap().createClassifierMap(); 
                clsMap1.setName("clsMap1"); 
                clsMap1.setTransformationMap(tfmMap); 

                ClassifierMap clsMap2 = 
tfm.getClassifierMap().createClassifierMap(); 
                clsMap2.setName("clsMap2"); 
                clsMap2.setTransformationMap(tfmMap); 

The exported XMI is: 

<?xml version = '1.0' encoding = 'ISO-8859-1' ?> 
<XMI xmi.version = '1.2' xmlns:CWM 
= 'org.omg.xmi.namespace.CWM' xmlns:CWMXCOBOL 
= 'org.omg.xmi.namespace.CWMXCOBOL' 
  xmlns:CWMMIN = 'org.omg.xmi.namespace.CWMMIN' 
xmlns:CWMIV = 'org.omg.xmi.namespace.CWMIV' 
  xmlns:CWMBUS = 'org.omg.xmi.namespace.CWMBUS' 
xmlns:CWMXML = 'org.omg.xmi.namespace.CWMXML' 
  xmlns:CWMXIS = 'org.omg.xmi.namespace.CWMXIS' 
xmlns:CWMXESSB = 'org.omg.xmi.namespace.CWMXESSB' 
  xmlns:CWMREC = 'org.omg.xmi.namespace.CWMREC' 
xmlns:CWMXER = 'org.omg.xmi.namespace.CWMXER' 
  xmlns:CWMOLAP = 'org.omg.xmi.namespace.CWMOLAP' 
xmlns:CWMTFM = 'org.omg.xmi.namespace.CWMTFM' 
  xmlns:CWMMDB = 'org.omg.xmi.namespace.CWMMDB' 
xmlns:CWMXExpress = 'org.omg.xmi.namespace.CWMXExpress' 
  xmlns:CWMWHP = 'org.omg.xmi.namespace.CWMWHP' 
xmlns:CWMXDMSII = 'org.omg.xmi.namespace.CWMXDMSII' 
  xmlns:CWMXIMS = 'org.omg.xmi.namespace.CWMXIMS' 
xmlns:CWMRDB = 'org.omg.xmi.namespace.CWMRDB' 
  xmlns:CWMWHO = 'org.omg.xmi.namespace.CWMWHO' 
xmlns:CWMXIR = 'org.omg.xmi.namespace.CWMXIR' 
  timestamp = 'Mon Oct 21 16:46:00 CEST 2002'> 
  <XMI.header> 
    <XMI.documentation> 
      <XMI.exporter>Netbeans XMI Writer</XMI.exporter> 
      <XMI.exporterVersion>1.0</XMI.exporterVersion> 
    </XMI.documentation> 
  </XMI.header> 
  <XMI.content> 
    <CWMTFM:TransformationMap xmi.id = 'a1' name 
= 'tfmMap' isPrimary = 'false'> 
      <CWM:Namespace.ownedElement> 
        <CWMTFM:ClassifierMap xmi.id = 'a2' name 
= 'clsMap2'/> 
        <CWMTFM:ClassifierMap xmi.id = 'a3' name 
= 'clsMap1'/> 
      </CWM:Namespace.ownedElement> 
      <CWMTFM:TransformationMap.classifierMap> 
        <CWMTFM:ClassifierMap xmi.id = 'a2' name 
= 'clsMap2'/> 
        <CWMTFM:ClassifierMap xmi.id = 'a3' name 
= 'clsMap1'/> 
      </CWMTFM:TransformationMap.classifierMap> 
    </CWMTFM:TransformationMap> 
  </XMI.content> 
</XMI> 

What I find strange is that the ClassifierMap definitions 
appear twice in the output XMI. If I detail the 
ClassifierMaps, e.g. by adding source and target 
definitions, the details also appear twice.

Is this behavior normal, or at least harmless? Is it 
possible to prevent it? 
Is it linked to the fact that the association between 
TransformationMap and ClassifierMap (CWM Transformation 
package) is the same as the association between NameSpace 
and ModelElement (CWM Core package)?

Best regards 

Vincent Lombart