Program: 73262
Project: 73262
Buggy source:
/** 
 * Get the design element handle adapter for specified report element handle
 * @param obj Given boject
 * @param mark Helper mark
 * @return
 */
public DesignElementHandleAdapter getDesignElementHandleAdapter(Object obj,IModelAdapterHelper mark){
  if (obj instanceof IAdaptable) {
    Object adapter=((IAdaptable)obj).getAdapter(DesignElementHandle.class);
    if (adapter != null) {
      obj=adapter;
    }
  }
  if (obj instanceof ReportItemHandle && mark instanceof IMultipleAdapterHelper) {
    return getMultipleAdapter(obj,mark);
  }
  if (obj instanceof ReportDesignHandle) {
    return getReportDesignHandleAdapter(obj,mark);
  }
 else   if (obj instanceof LibraryHandle) {
    return getLibraryHandleAdapter(obj,mark);
  }
 else   if (obj instanceof SimpleMasterPageHandle) {
    return getReportDesignHandleAdapter(obj,mark);
  }
 else   if (obj instanceof TableHandle) {
    return getTableHandleAdapter(obj,mark);
  }
  if (obj instanceof RowHandle) {
    return getRowHandleAdapter(obj,mark);
  }
  if (obj instanceof ColumnHandle) {
    return getColumnHandleAdapter(obj,mark);
  }
  if (obj instanceof CellHandle) {
    return getCellHandleAdapter(obj,mark);
  }
  if (obj instanceof ImageHandle) {
    return getImageHandleAdapter(obj,mark);
  }
  if (obj instanceof GridHandle) {
    return getGridHandleAdapter(obj,mark);
  }
  if (obj instanceof ListHandle) {
    return getListHandleAdapter(obj,mark);
  }
  if (obj instanceof AutoTextHandle) {
    return getAutoTextHandleAdapter(obj,mark);
  }
  if (obj instanceof LabelHandle) {
    return getLabelHandleAdapter(obj,mark);
  }
  if (obj instanceof TextDataHandle) {
    return getTextDataHandleAdapter(obj,mark);
  }
  if (obj instanceof DataItemHandle) {
    return getDataItemHandleAdapter(obj,mark);
  }
  if (obj instanceof TextItemHandle) {
    return getTextItemHandleAdapter(obj,mark);
  }
  if (obj instanceof ExtendedItemHandle) {
    return getExtendedItemHandleAdapter(obj,mark);
  }
  return null;
}

Fixed version (ground truth):
/** 
 * Get the design element handle adapter for specified report element handle
 * @param obj Given boject
 * @param mark Helper mark
 * @return
 */
public DesignElementHandleAdapter getDesignElementHandleAdapter(Object obj,IModelAdapterHelper mark){
  if (obj instanceof IAdaptable) {
    Object adapter=((IAdaptable)obj).getAdapter(DesignElementHandle.class);
    if (adapter != null) {
      obj=adapter;
    }
  }
  if (obj instanceof ReportItemHandle && mark instanceof IMultipleAdapterHelper) {
    return getMultipleAdapter(obj,mark);
  }
  if (obj instanceof ReportDesignHandle) {
    return getReportDesignHandleAdapter(obj,mark);
  }
 else   if (obj instanceof LibraryHandle) {
    return getLibraryHandleAdapter(obj,mark);
  }
 else   if (obj instanceof SimpleMasterPageHandle) {
    return getSimpleMasterPageHandleAdapter(obj,mark);
  }
 else   if (obj instanceof TableHandle) {
    return getTableHandleAdapter(obj,mark);
  }
  if (obj instanceof RowHandle) {
    return getRowHandleAdapter(obj,mark);
  }
  if (obj instanceof ColumnHandle) {
    return getColumnHandleAdapter(obj,mark);
  }
  if (obj instanceof CellHandle) {
    return getCellHandleAdapter(obj,mark);
  }
  if (obj instanceof ImageHandle) {
    return getImageHandleAdapter(obj,mark);
  }
  if (obj instanceof GridHandle) {
    return getGridHandleAdapter(obj,mark);
  }
  if (obj instanceof ListHandle) {
    return getListHandleAdapter(obj,mark);
  }
  if (obj instanceof AutoTextHandle) {
    return getAutoTextHandleAdapter(obj,mark);
  }
  if (obj instanceof LabelHandle) {
    return getLabelHandleAdapter(obj,mark);
  }
  if (obj instanceof TextDataHandle) {
    return getTextDataHandleAdapter(obj,mark);
  }
  if (obj instanceof DataItemHandle) {
    return getDataItemHandleAdapter(obj,mark);
  }
  if (obj instanceof TextItemHandle) {
    return getTextItemHandleAdapter(obj,mark);
  }
  if (obj instanceof ExtendedItemHandle) {
    return getExtendedItemHandleAdapter(obj,mark);
  }
  return null;
}