test/jdk/java/util/Collections/CheckedListReplaceAll.java - master - githubmirror/panama-vector

test/jdk/java/util/Collections/CheckedListReplaceAll.java
75 строк3 KB
David Simms
8389219: Implement JEP 401: Value Objects (Preview)
31 июл 2026, 03:45
31 июл 2026, 03:45cc278db
/*
 * Copyright (c) 2014, 2026, 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     8047795 8053938
 * @summary Ensure that replaceAll operator cannot add bad elements
 * @author  Mike Duigou
 * @library /test/lib
 */

import jdk.test.lib.valueclass.VClass;
import java.util.*;
import java.util.function.UnaryOperator;

public class CheckedListReplaceAll {

    public static void main(String[] args) {
        List unwrapped = Arrays.asList(new Object[]{1, 2, 3});
        List<Object> wrapped = Collections.checkedList(unwrapped, Integer.class);

        UnaryOperator evil = e -> (((int) e) % 2 != 0) ? e : "evil";

        try {
            wrapped.replaceAll(evil);
            System.out.printf("Bwahaha! I have defeated you! %s\n", wrapped);
            throw new RuntimeException("String added to checked List<Integer>");
        } catch (ClassCastException thwarted) {
            thwarted.printStackTrace(System.out);
            System.out.println("Curses! Foiled again!");
        }

        unwrapped = Arrays.asList(new Object[]{});  // Empty list
        wrapped = Collections.checkedList(unwrapped, Integer.class);
        try {
            wrapped.replaceAll((UnaryOperator)null);
            System.out.printf("Bwahaha! I have defeated you! %s\n", wrapped);
            throw new RuntimeException("NPE not thrown when passed a null operator");
        } catch (NullPointerException thwarted) {
            thwarted.printStackTrace(System.out);
            System.out.println("Curses! Foiled again!");
        }

        List<VClass> vList = Collections.checkedList(new ArrayList<VClass>(Arrays.asList(new VClass(1, new int[] { 1 }))), VClass.class);
        vList.replaceAll(v -> new VClass(v.x + 1, new int[] { v.x + 1 }));
        if (!vList.get(0).equals(new VClass(2, new int[] { 2 })))
            throw new RuntimeException("value checkedList replaceAll failed");

        List raw = Collections.checkedList(new ArrayList<VClass>(Arrays.asList(new VClass(1, new int[] { 1 }))), VClass.class);
        try {
            raw.replaceAll(e -> "not a Tuple");
            throw new RuntimeException("value checkedList replaceAll accepted wrong type");
        } catch (ClassCastException expected) { }
    }
}