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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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/**
 * @test
 * @bug 8041705
 * @summary  Bugs in DefaultTreeCellRenderer.updateUI()
 * @key headful
 * @run main DefaultTreeCellRendererBorderTest
 */

import java.awt.BorderLayout;
import java.awt.Insets;
import java.awt.Robot;
import javax.swing.JFrame;
import javax.swing.JTree;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.WindowConstants;
import javax.swing.tree.DefaultTreeCellRenderer;

public class DefaultTreeCellRendererBorderTest {
    private static JFrame frame;
    private static JTree tree;
    private static DefaultTreeCellRenderer treeCellRenderer;
    private static Robot robot;
    private static Insets margin1;
    private static Insets margin2;

    public static void main(String[] args) throws Exception {
        try{
            robot = new Robot();
            robot.setAutoDelay(50);
            SwingUtilities.invokeAndWait(()-> {
                frame = new JFrame();
                tree = new JTree();
                treeCellRenderer = new DefaultTreeCellRenderer();
                tree.add(treeCellRenderer);
                frame.setDefaultCloseOperation(
                        WindowConstants.DISPOSE_ON_CLOSE);
                frame.setSize(300,300);
                frame.setVisible(true);
                frame.setLayout(new BorderLayout());
                tree.setRootVisible(true);
                tree.setShowsRootHandles(true);
                frame.add(tree, BorderLayout.CENTER);
            });
            robot.waitForIdle();

            UIManager.setLookAndFeel(
                    "javax.swing.plaf.nimbus.NimbusLookAndFeel");
            UIManager.put("Tree.rendererMargins", new Insets(2, 2, 2, 2));
            SwingUtilities.invokeAndWait(() -> {
                SwingUtilities.updateComponentTreeUI(frame);
                margin1 = treeCellRenderer.getInsets();
            });
            robot.waitForIdle();

            UIManager.put("Tree.rendererMargins", null);
            UIManager.setLookAndFeel(
                    "javax.swing.plaf.metal.MetalLookAndFeel");
            SwingUtilities.invokeAndWait(()->{
                SwingUtilities.updateComponentTreeUI(frame);
                margin2 = treeCellRenderer.getInsets();
            });
            robot.waitForIdle();

            if(margin1.equals(margin2)) {
                throw new RuntimeException("Test Failed : NimbusLookAndFeel "+
                        "Border persists for MetalLookAndFeel");
            }
        } finally {
            if(frame != null) {
                SwingUtilities.invokeAndWait(frame::dispose);
            }
        }
    }
}