Hello, i wrote a simple code which strangely works on "Local Run".
When i compile the code i got the message "Compilation successful". Ok...
But when i run it, Sometimes, it's like a random function on currency pairs... Sometimes i open EURUSD, sometimes EURJPY or GBPUSD.... nonsense....
And sometimes i got the message: "java.lang.NullPointerException",
But i don't know where's come from all those errors....
Why i don't get EURUSD order instead of getting USDCHF order, then GBPUSD.....
And why the compilation is ok and after when the code is running, JForex finds errors....

Thank for your helps !


That's my code: (nothing too long)



package jforex;

import java.util.*;

import com.dukascopy.api.*;
import com.dukascopy.api.IEngine.OrderCommand;

public class Test implements IStrategy {
private IEngine engine;
private IConsole console;
private IHistory history;
private IContext context;
private IIndicators indicators;
private IUserInterface userInterface;




@Configurable("Instrument")
public Instrument instrument = Instrument.EURUSD;

@Configurable("Period")
public Period selectedPeriodo = Period.ONE_MIN;

@Configurable("Period")
public Period selectedPeriodc = Period.FIVE_MINS;



@Configurable("w")
public double w = 0;





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();
}



public void onAccount(IAccount account) throws JFException {
}

public void onMessage(IMessage message) throws JFException {
}

public void onStop() throws JFException {
}

public void onTick(Instrument instrument, ITick tick) throws JFException {


// DEFINITION DU CCI M15
int cciperiod = 14;
int shift = 0;
double ccim = indicators.cci(instrument, selectedPeriodo, OfferSide.BID, cciperiod, shift);


// DEFINITION DU MACD M5

int fastPeriod = 12;
int slowPeriod = 26;
int signalPeriod = 9;

double[] macd = indicators.macd(instrument, selectedPeriodc, OfferSide.BID, IIndicators.AppliedPrice.CLOSE, fastPeriod, slowPeriod, signalPeriod, shift);

double macdd = macd[1];


// SEND BUY ORDER
if (w==0 && ccim>100)
{engine.submitOrder("ordreachat", instrument, OrderCommand.BUY, 0.1);
w=300;}



// SEND SELL ORDER
if (w==0 && ccim <-100)
{engine.submitOrder("ordrevente", instrument, OrderCommand.SELL, 0.1);
w=400;}

// CLOSE BUY ORDER
if (w==300 && macdd<0)
{engine.getOrder("ordreachat").close();
engine.getOrder("ordreachat").waitForUpdate(IOrder.State.CLOSED); //wait till the order is closed};
w=0;
}



// CLOSE SELL ORDER
if (w==400 && macdd>0)
{engine.getOrder("ordrevente").close();
engine.getOrder("ordrevente").waitForUpdate(IOrder.State.CLOSED); //wait till the order is closed};
w=0;
}

}

public void onBar(Instrument instrument, Period period, IBar askBar, IBar bidBar) throws JFException {
}
}

You might want to try this

public void onTick(Instrument instrument, ITick tick) throws JFException {
            // need to check what instrument this tick belong to
            if  ( this.instrument != instrument )
            {
                      return;
            }
            ....
            // rest of code
            ....
}

Thanks for your help !!!
But you don't find this weird ???
I precised my instruments, at the begining of the code. How it is possible that my programme decide to change currency pairs like a random function... ???

See:
https://www.dukascopy.com/wiki/#Strategy_API/IStrategy_interface