public static TreeNode @Nullable [] getTransferedTreeNodes(@NotNull Transferable transferable) {
    try {
      final Object transferData = transferable.getTransferData(DnDEventImpl.ourDataFlavor);
      if (transferData instanceof TransferableWrapper) {
        return ((TransferableWrapper)transferData).getTreeNodes();
      }
      return null;
    }
    catch (Exception e) {
      return null;
    }
  }
public static TreeNode @Nullable [] getTransferedTreeNodes(@NotNull Transferable transferable)