Switch Handles on electron app using selenium using Java

Im trying to switch handles on my electron app using selenium. Currently im trying

 // Switch to new window opened
    for(String winHandle : driver.getWindowHandles()){
        driver.switchTo().window(winHandle);
    }

But this isnt causing a switch, ive tried to print the number of open windows using:

    System.out.println("Number of Handles: " + driver.getWindowHandles().toString());

but all im getting is Number of Handles: [CDwindow-9AAF3A83574341C2DF145765280C8BC1]