I have the problem, that in demo mode in the beginning of a run getEquity() returns 0.
I would like to calculate the volume for the first trade as a function of the equity.

How can I get the correct equity at the beginning of a run?

Thanks,
R.

To avoid first ticks without account update try to use this:

//........
private double equity = 0;
public void onAccount(IAccount account) throws JFException {
      this.equity = account.getEquity();
}
public void onTick(Instrument instrument, ITick tick) throws JFException {

      if (instrument != currentInstrument) {
         return;
      }
      if (equity == 0) {
         log("Waiting for account update.");
         return;
      }
//................
}