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 * @bug 6794836

 * @summary BasicSliderUI throws NullPointerExc when JSlider maximum is Integer.MAX_VALUE

 * @author Pavel Porvatov

 * @run main bug6794836

 */

import javax.swing.*;

import javax.swing.plaf.basic.BasicSliderUI;

import java.lang.reflect.Method;

import java.util.Hashtable;

public class bug6794836 {

    public static void main(String[] args) throws Exception {

        new bug6794836().run();

    }

    public void run() throws Exception {

        JSlider slider = new JSlider(0, Integer.MAX_VALUE);

        slider.setPaintLabels(true);

        JLabel minLabel = new JLabel("Min");

        JLabel maxLabel = new JLabel("Max");

        Hashtable<Integer, JLabel> labelTable = new Hashtable<Integer, JLabel>();

        labelTable.put(Integer.MIN_VALUE, minLabel);

        labelTable.put(Integer.MAX_VALUE, maxLabel);

        slider.setLabelTable(labelTable);

        BasicSliderUI ui = (BasicSliderUI) slider.getUI();

        if (invokeMethod("getHighestValueLabel", ui) != maxLabel) {

            fail("invalid getHighestValueLabel result");

        }

        if (invokeMethod("getLowestValueLabel", ui) != minLabel) {

            fail("invalid getLowestValueLabel result");

        }

        System.out.println("The bug6794836 test passed");

    }

    private static Object invokeMethod(String name, BasicSliderUI ui) throws Exception {

        Method method = BasicSliderUI.class.getDeclaredMethod(name, null);

        method.setAccessible(true);

        return method.invoke(ui, null);

    }

    private static void fail(String s) {

        throw new RuntimeException("Test failed: " + s);

    }

}