test/jdk/java/awt/Component/Headless/HeadlessScrollPane.java

/*
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 * 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.
 *
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 * questions.
 */

import java.awt.*;

/*
 * @test
 * @summary Check that ScrollPane constructors throw HeadlessException in headless mode
 * @run main/othervm -Djava.awt.headless=true HeadlessScrollPane
 */

public class HeadlessScrollPane {
    public static void main(String args[]) {
        ScrollPane s;
        boolean exceptions = false;

        try {
            s = new ScrollPane();
        } catch (HeadlessException e) {
            exceptions = true;
        }
        if (!exceptions)
            throw new RuntimeException("HeadlessException did not occur when expected");

        exceptions = false;
        try {
            s = new ScrollPane(ScrollPane.SCROLLBARS_ALWAYS);
        } catch (HeadlessException e) {
            exceptions = true;
        }
        if (!exceptions)
            throw new RuntimeException("HeadlessException did not occur when expected");

        exceptions = false;
        try {
            s = new ScrollPane(ScrollPane.SCROLLBARS_AS_NEEDED);
        } catch (HeadlessException e) {
            exceptions = true;
        }
        if (!exceptions)
            throw new RuntimeException("HeadlessException did not occur when expected");

        exceptions = false;
        try {
            s = new ScrollPane(ScrollPane.SCROLLBARS_NEVER);
        } catch (HeadlessException e) {
            exceptions = true;
        }
        if (!exceptions)
            throw new RuntimeException("HeadlessException did not occur when expected");
    }
}