I am getting this when trying to close an order:
Cannot mass close orders in state other than FILLED: com.dukascopy.api.JFException: Cannot mass close orders in state other than FILLED
at com.dukascopy.api.impl.connect.k.closeOrders(Unknown Source)
Before doing that I checked the order state should be (order.getState()==IOrder.State.CREATED || order.getState()==IOrder.State.OPENED) as what's said in the document. The order has entry filled, takeprofit and stoploss pending so I guess the state is OPENED.
My first question is how the order state changes. I thought it's CREATED at first, then OPENED once server confirmed, when entry filled, it's FILLED, when either TP or SL filled, it's CLOSED. But this seems I am wrong. The status is still OPENED after entry filled.
My second question is whether it's possible to close such an order, if not, how could I distinguish it from an order could be closed.
Thanks!

Hi,

Please consider added diagram.
A function closeOrders closes only filled orders. An order became closed(IOrder.State.CLOSED) only after its filled (IOrder.State.FILLED).

It is possible, use a function close. Consider following example:

for (IOrder o : context.getEngine().getOrders()){
         if(o.getState() == IOrder.State.OPENED || o.getState() == IOrder.State.FILLED){
                o.close();
         }
      }

If you close an order that isn't filled, it became in the state IOrder.Satate.CANCELED.