Program: 121117
Project: 121117
Buggy source:
private void copyElementParametersValue(IElement sourceElement,IElement targetElement){
  for (  IElementParameter sourceParam : sourceElement.getElementParameters()) {
    IElementParameter targetParam=targetElement.getElementParameter(sourceParam.getName());
    if (targetParam != null) {
      if (sourceParam.getName().equals(EParameterName.DB_TYPE.getName()) && sourceParam.getValue().toString().matches("String_Node_Str")) {
        sourceElement.getElementParameter(EParameterName.DBNAME.getName()).setValue(sourceElement.getElementParameter(EParameterName.DBFILE.getName()).getValue());
      }
      targetParam.setContextMode(sourceParam.isContextMode());
      targetParam.setValue(sourceParam.getValue());
      if (sourceParam.getValue() instanceof List) {
        targetParam.setValue(new ArrayList((List)sourceParam.getValue()));
      }
      if (targetParam.getFieldType() == EParameterFieldType.TABLE) {
        targetParam.setListItemsValue(ArrayUtils.clone(sourceParam.getListItemsValue()));
        targetParam.setListItemsDisplayCodeName(sourceParam.getListItemsDisplayCodeName());
      }
      for (      String name : targetParam.getChildParameters().keySet()) {
        IElementParameter targetChildParam=targetParam.getChildParameters().get(name);
        if (sourceParam.getChildParameters() == null) {
          continue;
        }
        IElementParameter sourceChildParam=sourceParam.getChildParameters().get(name);
        targetChildParam.setValue(sourceChildParam.getValue());
        if (targetChildParam.getFieldType() == EParameterFieldType.TABLE) {
          targetChildParam.setListItemsValue(sourceChildParam.getListItemsValue());
          targetChildParam.setListItemsDisplayCodeName(sourceChildParam.getListItemsDisplayCodeName());
        }
      }
    }
 else {
      ElementParameter newParam=(ElementParameter)sourceParam.getClone();
      List<IElementParameter> listParam=(List<IElementParameter>)targetElement.getElementParameters();
      listParam.add(newParam);
    }
  }
}

Fixed version (ground truth):
private void copyElementParametersValue(IElement sourceElement,IElement targetElement){
  for (  IElementParameter sourceParam : sourceElement.getElementParameters()) {
    IElementParameter targetParam=targetElement.getElementParameter(sourceParam.getName());
    if (targetParam != null) {
      if (sourceParam.getName().equals(EParameterName.DB_TYPE.getName()) && sourceParam.getValue().toString().matches("String_Node_Str")) {
        sourceElement.getElementParameter(EParameterName.DBNAME.getName()).setValue(sourceElement.getElementParameter(EParameterName.DBFILE.getName()).getValue());
      }
      targetParam.setContextMode(sourceParam.isContextMode());
      targetParam.setValue(sourceParam.getValue());
      if (sourceParam.getValue() instanceof List) {
        List sourceList=(List)sourceParam.getValue();
        List targetList=new ArrayList();
        for (        Object map : sourceList) {
          if (map instanceof HashMap) {
            HashMap oldMap=(HashMap)map;
            targetList.add(oldMap.clone());
          }
        }
        if (targetList.size() > 0) {
          targetParam.setValue(targetList);
        }
 else {
          targetParam.setValue(new ArrayList(sourceList));
        }
      }
      if (targetParam.getFieldType() == EParameterFieldType.TABLE) {
        targetParam.setListItemsValue(ArrayUtils.clone(sourceParam.getListItemsValue()));
        targetParam.setListItemsDisplayCodeName(sourceParam.getListItemsDisplayCodeName());
      }
      for (      String name : targetParam.getChildParameters().keySet()) {
        IElementParameter targetChildParam=targetParam.getChildParameters().get(name);
        if (sourceParam.getChildParameters() == null) {
          continue;
        }
        IElementParameter sourceChildParam=sourceParam.getChildParameters().get(name);
        targetChildParam.setValue(sourceChildParam.getValue());
        if (targetChildParam.getFieldType() == EParameterFieldType.TABLE) {
          targetChildParam.setListItemsValue(sourceChildParam.getListItemsValue());
          targetChildParam.setListItemsDisplayCodeName(sourceChildParam.getListItemsDisplayCodeName());
        }
      }
    }
 else {
      ElementParameter newParam=(ElementParameter)sourceParam.getClone();
      List<IElementParameter> listParam=(List<IElementParameter>)targetElement.getElementParameters();
      listParam.add(newParam);
    }
  }
}