DesktopPaneBackgroundTest.java

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 /*
* @test
* @bug 7012008
* @summary Verify JDesktopPane Background Color for WLAF
* @requires (os.family == "windows")
* @run main DesktopPaneBackgroundTest
 */
import java.awt.Color;
import java.awt.Toolkit;
import javax.swing.JDesktopPane;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;

public class DesktopPaneBackgroundTest {

    private static Color defaultBackgroudColor;

    public static void main(String[] args) throws Exception {
        defaultBackgroudColor = (Color) Toolkit.getDefaultToolkit()
                .getDesktopProperty("win.mdi.backgroundColor");

        String[] lookAndFeel = new String[]{
            "com.sun.java.swing.plaf.windows.WindowsLookAndFeel",
            "com.sun.java.swing.plaf.windows.WindowsClassicLookAndFeel"};

        for (String laf : lookAndFeel) {
            UIManager.setLookAndFeel(laf);

            SwingUtilities.invokeAndWait(() -> {
                JDesktopPane desktopPane = new JDesktopPane();

                Color background = desktopPane.getBackground();
                if (!background.equals(defaultBackgroudColor)) {
                    throw new RuntimeException("Invalid JDesktopPane "
                            + "Background Color for WLAF");
                }
            });
        }
    }
}