public static Window setSize(JComponent content, final Dimension size) {
final Window popupWindow = SwingUtilities.windowForComponent(content);
final Point location = popupWindow.getLocation();
popupWindow.setLocation(location.x, location.y);
Insets insets = content.getInsets();
if (insets != null) {
size.width += insets.left + insets.right;
size.height += insets.top + insets.bottom;
}
content.setPreferredSize(size);
popupWindow.pack();
return popupWindow;
}
public void pack() {
final Window window = SwingUtilities.getWindowAncestor(myContent);
window.pack();
}