How to open a URL in IE tabs and not new windows - Java

Question

I'm bit of a noob so please bear with me. I'm trying to open a lot of urls in internet explorer at once. About 40 urls.

I have an array of my urls and I'm using the following code:

for (int i = 0; i < urls.length; i++){
        java.awt.Desktop.getDesktop().browse(java.net.URI.create(urls[i]));
}

This works perfectly if I already have IE open. However if it's not open already it creates 40 new windows not tabs. I have tried to get around it by using the following:

for (int i = 0; i <= 9; i++){
        java.awt.Desktop.getDesktop().browse(java.net.URI.create(urls[i]));
        try {
            Thread.currentThread().sleep(200);
        } catch (InterruptedException ex) {
            Logger.getLogger(Test.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

Answer 1

200, is just too small, i have tryed 1000 and it was also too small, but 2000 was OK. And of course, open the first one, then wait, and then open all the others at once.