The line:

DefaultCategoryDataset dataset = new DefaultCategoryDataset();

is stopping the strategy. What is wrong? (you can get the jar file here: https://www.jfree.org/jfreechart/)

package jforex;

import java.util.*;

import com.dukascopy.api.*;

import org.jfree.data.category.DefaultCategoryDataset;

@RequiresFullAccess
@Library("../JForex/Strategies/files/jfreechart-1.0.13.jar")

public class Dataset implements IStrategy {
   private IEngine engine;
   private IConsole console;
   private IHistory history;
   private IContext context;
   private IIndicators indicators;
   private IUserInterface userInterface;
   
   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();
        
        DefaultCategoryDataset dataset = new DefaultCategoryDataset();
   }

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

Hi,
It seems to be the third party software. Please contact the developers of this software.

Could you give it another try? JFreechart has been stable since April 2009 and this is the basic to be able to create a dataset. The examples work when you try them locally but fail once included in JForex.

Also it seems more logical for Dukascopy to fix it since JFreechart is open source and JForex is not and is not giving any errors at all. So you can dive deep while others cannot.

thx

Any status update?

It is necessary to include jcommon jar when you use the JFreeChart library. Please take a look at the following JForex Wiki page https://www.dukascopy.com/wiki/index.php ... _libraries