Quelle  HeadlessBox.java

/*
 * Copyright (c) 2007, 2015, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
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 */

import javax.swing.*;
import java.awt.*;
import java.util.Locale;

/*
 * @test
 * @summary Check that Box constructors and methods do not throw
 *          unexpected exceptions in headless mode
 * @run main/othervm -Djava.awt.headless=true HeadlessBox
 */

public class HeadlessBox {

    public static void main(String args[]) {
        for (Box b : new Box[]{new Box(BoxLayout.X_AXIS), new Box(BoxLayout.Y_AXIS)}) {
            b = Box.createHorizontalBox();
            b = Box.createVerticalBox();
            b = new Box(BoxLayout.Y_AXIS);
            b.getAccessibleContext();
            b.requestFocus();
            b.requestFocusInWindow();
            b.getPreferredSize();
            b.getMaximumSize();
            b.getMinimumSize();
            b.contains(1, 2);
            Component c1 = b.add(new Component() {
            });
            Component c2 = b.add(new Component() {
            });
            Component c3 = b.add(new Component() {
            });
            b.getComponentCount();
            b.countComponents();
            b.getComponent(1);
            b.getComponent(2);
            Component[] cs = b.getComponents();

            boolean exceptions = false;
            try {
                b.setLayout(new BoxLayout(new Container(), BoxLayout.Y_AXIS));
            } catch (AWTError e) {
                exceptions = true;
            }
            if (!exceptions)
                throw new RuntimeException("AWTError did not occur when expected");

            exceptions = false;
            try {
                b.setLayout(new BoxLayout(new Container(), BoxLayout.X_AXIS));
            } catch (AWTError e) {
                exceptions = true;
            }
            if (!exceptions)
                throw new RuntimeException("AWTError did not occur when expected");

            b.getLayout();
            b.invalidate();
            b.validate();
            b.revalidate();

            Insets ins = b.getInsets();
            b.getAlignmentY();
            b.getAlignmentX();
            b.getGraphics();
            b.setVisible(false);
            b.setVisible(true);
            b.setEnabled(false);
            b.setEnabled(true);
            b.setForeground(Color.red);
            b.setBackground(Color.red);

            for (String font : Toolkit.getDefaultToolkit().getFontList()) {
                for (int j = 8; j < 17; j++) {
                    Font f1 = new Font(font, Font.PLAIN, j);
                    Font f2 = new Font(font, Font.BOLD, j);
                    Font f3 = new Font(font, Font.ITALIC, j);
                    Font f4 = new Font(font, Font.BOLD | Font.ITALIC, j);

                    b.setFont(f1);
                    b.setFont(f2);
                    b.setFont(f3);
                    b.setFont(f4);

                    b.getFontMetrics(f1);
                    b.getFontMetrics(f2);
                    b.getFontMetrics(f3);
                    b.getFontMetrics(f4);

                }
            }

            b.enable();
            b.disable();
            b.reshape(10, 10, 10, 10);
            b.getBounds(new Rectangle(1, 1, 1, 1));
            b.getSize(new Dimension(1, 2));
            b.getSize(new Dimension(1, 2));
            b.getLocation(new Point(1, 2));
            b.getX();
            b.getY();
            b.getWidth();
            b.getHeight();
            b.isOpaque();
            b.isValidateRoot();
            b.isOptimizedDrawingEnabled();
            b.isDoubleBuffered();

            b.remove(0);
            b.remove(c2);
            b.removeAll();
            b.layout();
            b.preferredSize();
            b.minimumSize();
            b.getComponentAt(1, 2);
            b.locate(1, 2);
            b.getComponentAt(new Point(1, 2));
            b.isFocusCycleRoot(new Container());
            b.transferFocusBackward();
            b.setName("goober");
            b.getName();
            b.getParent();
            b.getGraphicsConfiguration();
            b.getTreeLock();
            b.getToolkit();
            b.isValid();
            b.isDisplayable();
            b.isVisible();
            b.isShowing();
            b.isEnabled();
            b.enable(false);
            b.enable(true);
            b.enableInputMethods(false);
            b.enableInputMethods(true);
            b.show();
            b.show(false);
            b.show(true);
            b.hide();
            b.getForeground();
            b.isForegroundSet();
            b.getBackground();
            b.isBackgroundSet();
            b.getFont();
            b.isFontSet();
            b.getLocale();
            for (Locale locale : Locale.getAvailableLocales())
                b.setLocale(locale);

            b.getColorModel();
            b.getLocation();

            exceptions = false;
            try {
                b.getLocationOnScreen();
            } catch (IllegalComponentStateException e) {
                exceptions = true;
            }
            if (!exceptions)
                throw new RuntimeException("IllegalComponentStateException did not occur when expected");

            b.location();
            b.setLocation(1, 2);
            b.move(1, 2);
            b.setLocation(new Point(1, 2));
            b.getSize();
            b.size();
            b.setSize(1, 32);
            b.resize(1, 32);
            b.setSize(new Dimension(1, 32));
            b.resize(new Dimension(1, 32));
            b.getBounds();
            b.bounds();
            b.setBounds(10, 10, 10, 10);
            b.setBounds(new Rectangle(10, 10, 10, 10));
            b.isLightweight();
            b.setCursor(new Cursor(Cursor.CROSSHAIR_CURSOR));
            b.getCursor();
            b.isCursorSet();
            b.inside(1, 2);
            b.contains(new Point(1, 2));
            b.isFocusTraversable();
            b.isFocusable();
            b.setFocusable(true);
            b.setFocusable(false);
            b.transferFocus();
            b.getFocusCycleRootAncestor();
            b.nextFocus();
            b.transferFocusUpCycle();
            b.hasFocus();
            b.isFocusOwner();
            b.toString();
            b.setComponentOrientation(ComponentOrientation.LEFT_TO_RIGHT);
            b.setComponentOrientation(ComponentOrientation.RIGHT_TO_LEFT);
            b.setComponentOrientation(ComponentOrientation.UNKNOWN);
            b.getComponentOrientation();
        }
    }
}