import java.awt.*;

import java.awt.event.KeyEvent;

import java.util.ArrayList;

import java.util.List;

import javax.accessibility.Accessible;

import javax.accessibility.AccessibleComponent;

import javax.accessibility.AccessibleContext;

import javax.accessibility.AccessibleState;

import javax.accessibility.AccessibleStateSet;

import javax.swing.*;

import javax.swing.plaf.nimbus.NimbusLookAndFeel;

/*

 * @test

 * @bug 8134116

 * @summary JTabbedPane$Page.getBounds throws IndexOutOfBoundsException

 * @run main Bug8134116

 */

public class Bug8134116 {

    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();

            BadPane badPane = new BadPane();

            badPane.add("zero", panel0);

            badPane.add("one", null);

            JFrame frame = new JFrame();

            frame.add(badPane);

            frame.setSize(300, 300);

            frame.setVisible(true);

            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");

            }

            // page0 and page1 are a JTabbedPane.Page, a private inner class

            // and is an AccessibleContext

            // and implements Accessible and AccessibleComponent

            AccessibleContext pac0 = page0.getAccessibleContext();

            AccessibleContext pac1 = page1.getAccessibleContext();

            // the following would fail if JDK-8134116 fix not present

            // test Page.getBounds

            // ensure no IndexOutOfBoundsException

            pac0.getAccessibleComponent().getBounds();

            // 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);

            }

            // test Page.getAccessibleIndexInParent

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

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

                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);

            }

        });

    }

    // 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);

        }

    }

}