Hello,

When starting out with https://www.dukascopy.com/client/jforexl ... ibrary.zip Main.java, and extending it to run more than one strategy, the strategies run into LABEL_NOT_UNIQUE exceptions when executing orders.
The same strategies run fine if I only launch one strategy from Main.java.

I put a breakpoint on the engine.submitOrder call, and verified that I only open one order. However I am not able to debug into the engine.submitOrder code. Thus for what I understand, for some reason a single call to engine.submitOrder executes several orders, where additional orders are rejected due to having the same label.

In debugging this I also got one exception on instrument not subscribed. From my own code this would not be possible, as I check for the instrument type before submitting any orders, and I only submit orders which pass have the correct instrument type.

The behavior is reproducible 100% of the time. The current workaround I use, is a try-catch or the submitOrder call. I still of course get the exception, however, my strategy does not stop.

Hello,
It is not allowed to open several orders with the same label. If both strategies open order with the same label, then one of them will fail. Order label must be unique for all strategies and even more - for your account.

Hello,

Thank you for the quick response.

In order to better illustrate the problem I have attached java files.

As you can see, MA_Play2 does not submit any orders. However, if I run both strategies, I get an LABEL_NOT_UNIQUE exception.

If I only run one strategy, (comment out line 145-146 in Main.java), I do not get this exception.

Also notice that an exception is thrown if line 133 in main.java is commented out.

I hope this enables you to better understand the behavior I am observing.

Kind regards,

I think it is most likely a bug. It seems that all trategies registered are trying to send the same order. My two strategies use distinctly different labels. The error even occurs when you try to close an order.

I can also confirm this error. I register a new client and it's first order of the day is rejected with LABEL NOT UNIQUE.

@support

Hello,

Are you able to reproduce the behavior with the code posted? Do you consider this to be a bug?

Kind regards

Hello,
yes this is our bug. It is fixed and will be available with next API release.