import java.awt.*;

import java.awt.event.KeyEvent;

import java.util.ArrayList;

import java.util.List;

import javax.accessibility.Accessible;

import javax.accessibility.AccessibleContext;

import javax.accessibility.AccessibleState;

import javax.accessibility.AccessibleStateSet;

import javax.swing.*;

import javax.swing.plaf.nimbus.NimbusLookAndFeel;

/*

 * @test

 * @key headful

 * @bug 8134116

 * @summary JTabbedPane$Page.getBounds throws IndexOutOfBoundsException

 * @run main Bug8134116

 */

public class Bug8134116 {

    private static volatile Exception exception = null;

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

        try {

            UIManager.setLookAndFeel(new NimbusLookAndFeel());

        } catch (Exception e) {

            throw new RuntimeException(e);

        }

        SwingUtilities.invokeAndWait(() -> {

            JPanel panel0 = new JPanel();

            JPanel panel2 = new JPanel();

            BadPane badPane = new BadPane();

            badPane.add("zero", panel0);

            badPane.add("one", null);  // no component

            badPane.add("", panel2);  // no title

            badPane.add("", null); // no component, no title

            // but give it that via a tabComponent

            JPanel tabComponent = new JPanel();

            JLabel tabComponentLabel = new JLabel("three");

            tabComponent.add(tabComponentLabel);

            badPane.setTabComponentAt(3, tabComponent);

            JFrame frame = new JFrame();

            frame.add(badPane);

            frame.setSize(300, 300);

            frame.setVisible(true);

            try {

                AccessibleContext ac = badPane.getAccessibleContext();

                Accessible page0 = ac.getAccessibleChild(0);

                if (page0 == null) {

                    // Not something being tested, but checking anyway

                    throw new RuntimeException("getAccessibleChild(0) is null");

                }

                Accessible page1 = ac.getAccessibleChild(1);

                if (page1 == null) {

                    // Not something being tested, but checking anyway

                    throw new RuntimeException("getAccessibleChild(1) is null");

                }

                Accessible page2 = ac.getAccessibleChild(2);

                Accessible page3 = ac.getAccessibleChild(3);

                // page0 - page3 are JTabbedPane.Page, a private inner class

                // and is an AccessibleContext

                // and implements Accessible and AccessibleComponent

                AccessibleContext pac0 = page0.getAccessibleContext();

                AccessibleContext pac1 = page1.getAccessibleContext();

                AccessibleContext pac2 = page2.getAccessibleContext();

                AccessibleContext pac3 = page3.getAccessibleContext();

                // test Page.getBounds

                // ensure no IndexOutOfBoundsException

                Rectangle r0 = pac0.getAccessibleComponent().getBounds();

                // make sure second Bounds is different than first

                Rectangle r1  = pac1.getAccessibleComponent().getBounds();

                if (r1.equals(r0)) {

                    String msg = "Second tab should not have same bounds as first tab";

                    throw new RuntimeException(msg);

                }

                // test Page.getAccessibleStateSet

                // At this point page 0 is selected

                AccessibleStateSet accSS0 = pac0.getAccessibleStateSet();

                if (!accSS0.contains(AccessibleState.SELECTED)) {

                    String msg = "Empty title -> AccessibleState.SELECTED not set";

                    throw new RuntimeException(msg);

                }

                // select second tab

                badPane.setSelectedIndex(1);

                AccessibleStateSet accSS1 = pac1.getAccessibleStateSet();

                if (!accSS1.contains(AccessibleState.SELECTED)) {

                    String msg = "Second tab selected but AccessibleState.SELECTED not set";

                    throw new RuntimeException(msg);

                }

                // select third tab

                badPane.setSelectedIndex(2);

                AccessibleStateSet accSS2 = pac2.getAccessibleStateSet();

                if (!accSS1.contains(AccessibleState.SELECTED)) {

                    String msg = "Third tab selected but AccessibleState.SELECTED not set";

                    throw new RuntimeException(msg);

                }

                // select fourth tab

                badPane.setSelectedIndex(3);

                AccessibleStateSet accSS3 = pac3.getAccessibleStateSet();

                if (!accSS1.contains(AccessibleState.SELECTED)) {

                    String msg = "Fourth tab selected but AccessibleState.SELECTED not set";

                    throw new RuntimeException(msg);

                }

                // test Page.getAccessibleIndexInParent

                if (pac0.getAccessibleIndexInParent() == -1) {

                    String msg = "Empty title -> negative AccessibleIndexInParent";

                    throw new RuntimeException(msg);

                }

                if (pac0.getAccessibleIndexInParent() != 0) {

                    String msg = "first tab is not at index 0 in parent";

                    throw new RuntimeException(msg);

                }

                if (pac1.getAccessibleIndexInParent() != 1) {

                    String msg = "second tab (null component) is not at index 1 in parent";

                    throw new RuntimeException(msg);

                }

                if (pac2.getAccessibleIndexInParent() != 2) {

                    String msg = "third tab (empty title) string is not at index 2 in parent";

                    throw new RuntimeException(msg);

                }

                if (pac3.getAccessibleIndexInParent() != 3) {

                    String msg = "fourth tab (empty title, null component, has tabComponent) string is not at index 3 in parent";

                    throw new RuntimeException(msg);

                }

                // test Page.getAccessibleName

                String accName = pac0.getAccessibleName();

                if (!accName.equals("zero")) {

                    String msg = "Empty title -> empty AccessibleName";

                    throw new RuntimeException(msg);

                }

                // test Page.getAccessibleName when component is null

                accName = pac1.getAccessibleName();

                if (!accName.equals("one")) {

                    String msg = "AccessibleName of null panel not 'one'";

                    throw new RuntimeException(msg);

                }

                // test Page.setDisplayedMnemonicIndex

                //  Empty title -> IllegalArgumnetException

                badPane.setDisplayedMnemonicIndexAt(0, 1);

                // test Page.updateDisplayedMnemonicIndex

                badPane.setMnemonicAt(0, KeyEvent.VK_Z);

                if (badPane.getDisplayedMnemonicIndexAt(0) == -1) {

                    String msg="Empty title -> getDisplayedMnemonicIndexAt failure";

                    throw new RuntimeException(msg);

                }

            } catch (Exception e) {

                exception = e;

            }

        });

        if (exception != null) {

            System.out.println("Test failed: " + exception.getMessage());

            throw exception;

        } else {

            System.out.println("Test passed.");

        }

    }

    // The following is likely what is being done in Burp Suite

    // https://portswigger.net/burp/ which fails in the same way, i.e. the

    // pages List in JTabbedPane is not being managed properly and thus

    // Page.title is "" for each page.  The overridden insertTab manages titles

    // in the subclass passing a "" title to the superclass JTabbedPane through

    // its insertTab.  Later an overridden getTitleAt returns the titles as

    // managed by the subclass.

    static class BadPane extends JTabbedPane {

        private List<String> titles;

        BadPane() {

            titles = new ArrayList<String>(1);

        }

        @Override

        public void insertTab( String title, Icon icon, Component component,

                               String tip, int index ) {

            titles.add(index, title);

            super.insertTab("", icon, component, tip, index);

        }

        @Override

        public String getTitleAt(int i) {

            return titles.get(i);

        }

    }

}