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Java example source code file (bug4492274.java)

This example Java source code file (bug4492274.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

awt, exception, file, gui, htmleditorkit, jeditorpane, jframe, jscrollpane, net, network, override, runnable, runtimeexception, string, suntoolkit, swing, url

The bug4492274.java Java example source code

/*
 * Copyright (c) 2007, 2011, 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
 * questions.
 */

/* @test
 * @bug 4492274
 * @summary  Tests if JEditorPane.getPage() correctly returns anchor reference.
 * @author Denis Sharypov
 */

import sun.awt.SunToolkit;

import javax.swing.*;
import javax.swing.text.html.HTMLEditorKit;
import java.awt.*;
import java.io.File;
import java.net.URL;

public class bug4492274 {

    private static URL page;

    private static JEditorPane jep;

    public static void main(String args[]) throws Exception {
        SunToolkit toolkit = (SunToolkit) Toolkit.getDefaultToolkit();

        SwingUtilities.invokeAndWait(new Runnable() {
            @Override
            public void run() {
                createAndShowGUI();
            }
        });

        toolkit.realSync();

        SwingUtilities.invokeAndWait(new Runnable() {
            @Override
            public void run() {
                try {
                    page = new URL(page, "#linkname");
                    jep.setPage(page);
                } catch (Exception e) {
                    throw new RuntimeException(e);
                }
            }
        });

        toolkit.realSync();

        if (getPageAnchor() == null) {
            throw new RuntimeException("JEditorPane.getPage() returns null anchor reference");
        }

    }

    private static String getPageAnchor() throws Exception {
        final String[] result = new String[1];

        SwingUtilities.invokeAndWait(new Runnable() {
            @Override
            public void run() {
                result[0] = jep.getPage().getRef();
            }
        });

        return result[0];
    }

    private static void createAndShowGUI() {
        try {
            File file = new File(System.getProperty("test.src", "."), "test.html");
            page = file.toURI().toURL();

            JFrame f = new JFrame();

            jep = new JEditorPane();
            jep.setEditorKit(new HTMLEditorKit());
            jep.setEditable(false);
            jep.setPage(page);

            JScrollPane sp = new JScrollPane(jep);

            f.getContentPane().add(sp);
            f.setSize(500, 500);
            f.setVisible(true);

        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }
}

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