84 lines
2.7 KiB
Java
84 lines
2.7 KiB
Java
/*
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* Copyright (c) 2009, 2016, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @key headful
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* @bug 6794836
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* @summary BasicSliderUI throws NullPointerExc when JSlider maximum is Integer.MAX_VALUE
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* @author Pavel Porvatov
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* @modules java.desktop/javax.swing.plaf.basic:open
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* @run main bug6794836
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*/
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import javax.swing.*;
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import javax.swing.plaf.basic.BasicSliderUI;
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import java.lang.reflect.Method;
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import java.util.Hashtable;
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public class bug6794836 {
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public static void main(String[] args) throws Exception {
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new bug6794836().run();
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}
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public void run() throws Exception {
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JSlider slider = new JSlider(0, Integer.MAX_VALUE);
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slider.setPaintLabels(true);
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JLabel minLabel = new JLabel("Min");
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JLabel maxLabel = new JLabel("Max");
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Hashtable<Integer, JLabel> labelTable = new Hashtable<Integer, JLabel>();
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labelTable.put(Integer.MIN_VALUE, minLabel);
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labelTable.put(Integer.MAX_VALUE, maxLabel);
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slider.setLabelTable(labelTable);
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BasicSliderUI ui = (BasicSliderUI) slider.getUI();
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if (invokeMethod("getHighestValueLabel", ui) != maxLabel) {
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fail("invalid getHighestValueLabel result");
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}
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if (invokeMethod("getLowestValueLabel", ui) != minLabel) {
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fail("invalid getLowestValueLabel result");
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}
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System.out.println("The bug6794836 test passed");
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}
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private static Object invokeMethod(String name, BasicSliderUI ui) throws Exception {
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Method method = BasicSliderUI.class.getDeclaredMethod(name, null);
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method.setAccessible(true);
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return method.invoke(ui, null);
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}
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private static void fail(String s) {
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throw new RuntimeException("Test failed: " + s);
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}
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}
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