There are several reasons for order rejection by IB, the most common being
'margin requirements not met'. So if you have an account of $10000 and want
to buy 10 ES contracts, you most probably will get this error.
JBookTrader will not execute any more orders after encoutering this error.
So if you have an open position from Startegy A and encounter this error
when Strategy B attempts to open a position, the position of Strategy A
will never be closed throughout the whole session.
For the time being, I have replaced line 166 of Trader.java by
*if* (errorCode == 202 || errorCode == 201) { // Order Canceled/Rejected
This means that the condition 'order rejected' is handled the same way as
'order cancelled'.
I tested it this morning with my simulation account with the following
result:
Strategy A opens a position with 1 contract.
Strategy B attempts to open a position with 50 contracts and gets error 201
because of insufficient margin.
Strategy B attempts to open this position every second as long as the
condition for opening a position for Strategy B is met, and always gets the
error 201.
Strategy A closes its position.
Strategy B ceases attempting to open a position as soon as the condition
for opening a position for Strategy B is not met anymore.
Probably there is a better solution to handle this condition but this one
at least avoids knockout of JBookTrader.
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