[mdr-users] Truncated class file error

Hi,

I have a very simple meta-model that consists of a package and two 
classes. Its XMI follows:

<?xml version = '1.0' encoding = 'ISO-8859-1' ?>
<XMI xmi.version = '1.2' xmlns:Model = 'org.omg.xmi.namespace.Model' 
timestamp = 'Thu Aug 25 00:45:15 BST 2005'>
  <XMI.header>
    <XMI.documentation>
      <XMI.exporter>Netbeans XMI Writer</XMI.exporter>
      <XMI.exporterVersion>1.0</XMI.exporterVersion>
    </XMI.documentation>
  </XMI.header>
  <XMI.content>
     <Model:Tag xmi.id = 'a4' name = 'javax.jmi.packagePrefix' 
annotation = ''
      tagId = 'javax.jmi.packagePrefix'>
      <Model:Tag.values>org</Model:Tag.values>
      <Model:Tag.elements>
        <Model:Package xmi.idref = 'a1'/>
      </Model:Tag.elements>
    </Model:Tag>
    <Model:Package xmi.id = 'a1' name = 'SRDB' annotation = 'Simple 
Relational DataBase'
      isRoot = 'false' isLeaf = 'false' isAbstract = 'false' visibility 
= 'public_vis'>
      <Model:Namespace.contents>
        <Model:Class xmi.id = 'a2' name = 'Database' annotation = '' 
isRoot = 'false'
          isLeaf = 'false' isAbstract = 'false' isSingleton = 'false' 
visibility = 'public_vis'/>
        <Model:Class xmi.id = 'a3' name = 'Table' annotation = '' isRoot 
= 'false'
          isLeaf = 'false' isAbstract = 'false' isSingleton = 'false' 
visibility = 'public_vis'/>
      </Model:Namespace.contents>
    </Model:Package>
  </XMI.content>
</XMI>

When I try to create an instance of this meta-model I get the following 
error. I have searched the MDR website and found the same problem 
(http://mdr.netbeans.org/servlets/ReadMsg?listName=users&msgId=736932) 
but unfortunately no resolution.

[org.netbeans.mdr.Logger] Metamodel specific JMI class srdb.SrdbPackage 
not found. Using bytecode generation to create it.
Exception in thread "AWT-EventQueue-0" java.lang.ClassFormatError: 
Truncated class file
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(Unknown Source)
    at 
org.netbeans.mdr.handlers.MDRClassLoader.defineClass(MDRClassLoader.java:85)
    at 
org.netbeans.mdr.handlers.MDRClassLoader$ClassOutputStream.close(MDRClassLoader.java:215)
    at 
org.netbeans.lib.jmi.mapping.ClassFileMapper.closeStream(ClassFileMapper.java:85)
    at 
org.netbeans.lib.jmi.mapping.GenericMapper.visitRefObject(GenericMapper.java:381)
    at 
org.netbeans.lib.jmi.mapping.GenericMapper.visitRefPackage(GenericMapper.java:401)
    at 
org.netbeans.lib.jmi.mapping.GenericMapper.visitRefBaseObject(GenericMapper.java:409)
    at 
org.netbeans.mdr.handlers.MDRClassLoader.resolveInterface(MDRClassLoader.java:113)
    at 
org.netbeans.mdr.handlers.BaseObjectHandler.resolveClass(BaseObjectHandler.java:147)
    at 
org.netbeans.mdr.NBMDRepositoryImpl.getHandler(NBMDRepositoryImpl.java:612)
    at 
org.netbeans.mdr.NBMDRepositoryImpl.instantiatePackage(NBMDRepositoryImpl.java:796)
    at 
org.netbeans.mdr.NBMDRepositoryImpl.createExtent(NBMDRepositoryImpl.java:482)
    at 
org.netbeans.mdr.NBMDRepositoryImpl.createExtent(NBMDRepositoryImpl.java:287)
    at 
org.netbeans.mdr.NBMDRepositoryImpl.createExtent(NBMDRepositoryImpl.java:275)
    at 
org.xol.models.mdr.MDRModelRepository.addModel(MDRModelRepository.java:71)
    at org.xol.workbench.mdr.editor.MDREditor$1.run(MDREditor.java:147)
    at java.awt.event.InvocationEvent.dispatch(Unknown Source)
    at java.awt.EventQueue.dispatchEvent(Unknown Source)
    at java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown Source)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
    at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
    at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
    at java.awt.EventDispatchThread.run(Unknown Source)

Any ideas would be appreciated.

Regards,
Dimitrios