test/jdk/java/util/AbstractList/HasNextAfterException.java - master - githubmirror/jdk11u-dev

test/jdk/java/util/AbstractList/HasNextAfterException.java

53 строки2 KB

Doug Lea

8193300: Miscellaneous changes imported from jsr166 CVS 2018-01

17 янв 2018, 05:28

17 янв 2018, 05:28d771fc3

/*
 * Copyright (c) 2000, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

/*
 * @test
 * @bug 4375048
 * @summary AbstractList's ListIterator.hasNext() returns
 *          true, after ListIterator.previous() causes
 *          an exception for an empty list.
 * @author Konstantin Kladko
 */

import java.util.ArrayList;
import java.util.List;
import java.util.ListIterator;
import java.util.NoSuchElementException;

public class HasNextAfterException {
    public static void main(String[] args) {
        List list = new ArrayList();
        ListIterator i = list.listIterator();
        try {
        i.previous();
        }
        catch (NoSuchElementException e) {
        }
        if (i.hasNext()) {
            throw new RuntimeException(
               "ListIterator.hasNext() returns true for an empty "
                + "List after ListIterator.previous().");
        }
    }
}