Program: 68835
Project: 68835
Buggy source:
public boolean marshal(XPathFragment xPathFragment,MarshalRecord marshalRecord,Object object,AbstractSession session,NamespaceResolver namespaceResolver){
  if (xmlAnyAttributeMapping.isReadOnly()) {
    return false;
  }
  DirectMapContainerPolicy cp=(DirectMapContainerPolicy)xmlAnyAttributeMapping.getContainerPolicy();
  Object collection=xmlAnyAttributeMapping.getAttributeValueFromObject(object);
  if (collection == null) {
    return false;
  }
  Object iter=cp.iteratorFor(collection);
  if (!cp.hasNext(iter)) {
    return false;
  }
  XPathFragment groupingElements=marshalRecord.openStartGroupingElements(namespaceResolver);
  while (cp.hasNext(iter)) {
    Object key=cp.next(iter,(org.eclipse.persistence.internal.sessions.AbstractSession)session);
    if (key instanceof QName) {
      QName name=(QName)key;
      String value=cp.valueFromKey(key,collection).toString();
      String qualifiedName=name.getLocalPart();
      NamespaceResolver nr=((XMLDescriptor)xmlAnyAttributeMapping.getDescriptor()).getNamespaceResolver();
      if (nr != null) {
        String prefix=nr.resolveNamespaceURI(name.getNamespaceURI());
        if ((prefix != null) && !prefix.equals("String_Node_Str")) {
          qualifiedName=prefix + "String_Node_Str" + qualifiedName;
        }
      }
      marshalRecord.attribute(name.getNamespaceURI(),name.getLocalPart(),qualifiedName,value);
    }
  }
  marshalRecord.closeStartGroupingElements(groupingElements);
  return true;
}

Fixed version (ground truth):
public boolean marshal(XPathFragment xPathFragment,MarshalRecord marshalRecord,Object object,AbstractSession session,NamespaceResolver namespaceResolver){
  if (xmlAnyAttributeMapping.isReadOnly()) {
    return false;
  }
  DirectMapContainerPolicy cp=(DirectMapContainerPolicy)xmlAnyAttributeMapping.getContainerPolicy();
  Object collection=xmlAnyAttributeMapping.getAttributeValueFromObject(object);
  if (collection == null) {
    return false;
  }
  Object iter=cp.iteratorFor(collection);
  if (!cp.hasNext(iter)) {
    return false;
  }
  XPathFragment groupingElements=marshalRecord.openStartGroupingElements(namespaceResolver);
  List extraNamespaces=new ArrayList();
  NamespaceResolver nr=marshalRecord.getNamespaceResolver();
  while (cp.hasNext(iter)) {
    Object key=cp.next(iter,(org.eclipse.persistence.internal.sessions.AbstractSession)session);
    if (key instanceof QName) {
      QName name=(QName)key;
      String value=cp.valueFromKey(key,collection).toString();
      String qualifiedName=name.getLocalPart();
      if (nr != null) {
        String prefix=nr.resolveNamespaceURI(name.getNamespaceURI());
        if ((prefix != null) && !prefix.equals("String_Node_Str")) {
          qualifiedName=prefix + "String_Node_Str" + qualifiedName;
        }
 else         if (name.getNamespaceURI() != null && !name.getNamespaceURI().equals("String_Node_Str")) {
          String generatedPrefix=nr.generatePrefix();
          qualifiedName=generatedPrefix + "String_Node_Str" + qualifiedName;
          nr.put(generatedPrefix,name.getNamespaceURI());
          extraNamespaces.add(generatedPrefix);
          marshalRecord.attribute(XMLConstants.XMLNS_URL,generatedPrefix,XMLConstants.XMLNS + "String_Node_Str" + generatedPrefix,name.getNamespaceURI());
        }
      }
      marshalRecord.attribute(name.getNamespaceURI(),name.getLocalPart(),qualifiedName,value);
    }
  }
  for (int i=0; i < extraNamespaces.size(); i++) {
    marshalRecord.getNamespaceResolver().removeNamespace((String)extraNamespaces.get(i));
  }
  marshalRecord.closeStartGroupingElements(groupingElements);
  return true;
}