Auto-Hide Task-Bar and maximum screen space

It is well documented that code like the following

    final Rectangle bounds = device.getDefaultConfiguration().getBounds();
    final Insets screenInsets = Toolkit.getDefaultToolkit().getScreenInsets(
        device.getDefaultConfiguration());

    bounds.x = screenInsets.left;
    bounds.y = screenInsets.top;
    bounds.width -= screenInsets.left + screenInsets.right;
    bounds.height -= screenInsets.top + screenInsets.bottom;

where device is some valid GraphicsDevice gives a rectangle that should be the maximum allowable for a device. There are also other ways which all seem to suffer a shortcoming. For a primary display on MS Windows if the task-bar is NOT auto-hide this works. However if the task-bar is auto-hide it will not. I could allow for 开发者_StackOverflowthis in my unit test if I knew how to get the 'right' size or how, in the worst case, to determine when the task-bar is auto-hide then skip this part of the the test. Googling and Stackoverflowing has not helped. I know someone can and I thank you in advance!

As Always...

if I understood correctly Full-Screen Exclusive Mode, then your window's covered all screen size, including required area for Windows Taskbar (Auto-hide), I don't know correct way how to determine Windows Taskbar#HEIGHT, in all cases, because these heights depends of Applied Themes too, or not

1) (very ugly way) lets some empty space on display's bottom,

2) change Aplication window to the JFrame, then TaskBar overlay bottom part of JFrame, but you have to lost FullScreenExclusiveMode, that's window as any other

3) change Aplication window to the un-decorated JDialog, or JWindow (un-decorated by defalut, but required existence for JFrame, sure never visible, just required as parent) NOTICE: try to avoids usage of JDialog#setModal(true), because TaskBar would be again non-accesible, but in this case you can/have to play with JDialog#setModalityType, quasi to simulated FullScreenExclusiveMode, but Auto-Hide TaskBar could by accesible and overlay bottom of JDialog, but your window couldn't be moved toBack() or iconified()