AccessibleJTableCellTest.java

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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/*
 * @test
 * @key headful
 * @bug 4529616
 * @summary AccessibleJTableCell.isShowing() returns false
 * when the cell is actually on the screen.
 * @run main AccessibleJTableCellTest
 */

import java.awt.Robot;
import java.util.concurrent.atomic.AtomicBoolean;

import javax.swing.JFrame;
import javax.swing.JTable;
import javax.swing.SwingUtilities;

public class AccessibleJTableCellTest {
    private static JTable jTable;
    private static JFrame jFrame;

    private static Object[][] rowData = { { "01", "02", "03", "04", "05" },
        { "11", "12", "13", "14", "15" }, { "21", "22", "23", "24", "25" },
        { "31", "32", "33", "34", "35" }, { "41", "42", "43", "44", "45" } };

    private static Object[] colNames = { "1", "2", "3", "4", "5" };

    private static void doTest() throws Exception {
        try {
            SwingUtilities.invokeAndWait(() -> createGUI());

            Robot robot = new Robot();
            robot.setAutoDelay(500);
            robot.waitForIdle();

            for (int i = 0; i <= colNames.length - 1; i++) {
                if (!isJTableCellShowing(i)) {
                    throw new RuntimeException(
                        "Assertion Failed: JTable accessible child " + i
                        + " isShowing returns false");
                }
            }
        } finally {
            SwingUtilities.invokeAndWait(() -> jFrame.dispose());
        }
    }

    private static boolean isJTableCellShowing(int i) throws Exception {
        AtomicBoolean isShowing = new AtomicBoolean();
        SwingUtilities.invokeAndWait(() -> isShowing
            .set(jTable.getAccessibleContext().getAccessibleChild(i)
                .getAccessibleContext().getAccessibleComponent().isShowing()));

        return isShowing.get();
    }

    private static void createGUI() {
        jTable = new JTable(rowData, colNames);
        jFrame = new JFrame();
        jFrame.setBounds(100, 100, 300, 300);
        jFrame.getContentPane().add(jTable);
        jFrame.setLocationRelativeTo(null);
        jFrame.setVisible(true);
    }

    public static void main(String args[]) throws Exception {
        doTest();
        System.out.println("Test Passed");
    }
}