hi,

im adding the pairs, but only one pair is into the backtest,

    @Override public void onStart(IContext context) throws JFException { 
        this.engine = context.getEngine();
        this.console = context.getConsole();
        this.history = context.getHistory();
        this.context = context;
        this.indicators = context.getIndicators();
        this.userInterface = context.getUserInterface();
        this.account = context.getAccount();
 
        Set<Instrument> instruments = new HashSet<Instrument>();
           
            instruments.add(Instrument.AUDUSD);
            instruments.add(Instrument.AUDJPY);
            instruments.add(Instrument.USDJPY);
            instruments.add(Instrument.USDCHF);   
            instruments.add(Instrument.EURJPY);
            instruments.add(Instrument.GBPUSD);
            instruments.add(Instrument.GBPJPY);
            instruments.add(Instrument.EURUSD);
            context.setSubscribedInstruments(instruments,true);
        
    }

    @Override public void onBar(Instrument instrument, Period period, IBar askBar, IBar bidBar) throws JFException { 
        
        // only one position open     
        if((engine.getOrders().isEmpty())){     
        // loop for pairs        
            for(int i=0;i<pairs.length;i++){   
               if(pairs[i]!=instrument || period != selectedPeriod)return;                                           
               .......
               SMIindicator(pairs[i]);

           }                    
        }
    }

I have read something about SystemListener, but i have no idea about that. can anyone help me?

Thank you

For back-testing from the platform you need to add the instruments by pressing the Instruments button in the Historical Tester. Correspondingly when back-testing from SDK, you need to set the instruments the following way: https://www.dukascopy.com/wiki/#JForex_SDK/Subscribing_to_instruments

so, for run the strategy at Remote server?

There is no back-testing on remote server