java.lang.NullPointerException
   at jforex.swapper.onTick(swapper.java:167)
   at com.dukascopy.dds2.greed.agent.strategy.tester.a.a(Unknown Source)
   at com.dukascopy.dds2.greed.agent.strategy.tester.l.run(Unknown Source)
   at com.dukascopy.dds2.greed.agent.strategy.tester.a.wI(Unknown Source)
   at com.dukascopy.dds2.greed.actions.StrategyTesterAction.vc(Unknown Source)
   at com.dukascopy.dds2.greed.actions.StrategyTesterAction.uB(Unknown Source)
   at com.dukascopy.dds2.greed.actions.c.run(Unknown Source)
   at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
   at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
   at java.lang.Thread.run(Unknown Source)

in 167

if (order.getState() == IOrder.State.FILLED)

I can not understand why the error occurs.
the tester start working without any error.

The exception you get is because you are likely to have not instantiated the order object, could you please provide a code fragment where you assign a value to the order object?

i can't use code tag so i attach the java file with all code.

In begin of test, there are no errors, but with time its show this error

And with time my memory used with Jforex is rising very fast.

We did not manage to reproduce the exception. Please consider inserting in line 167 the null check in order to log values when the order is not among the active orders no more (i.e. the order with such label has been either CANCELED, CLOSED or it did not get created).

if(order == null){
    console.getErr().println("The order has not been found! magic="+magic+" inst.name()="+inst.name() + " counter="+counter);
}

Just before using any "order" variable in onTick function i insert this code

if(order == null) 
            {
                return;
            }

Right now all work fine! Thanks.