| /* |
| * Copyright (c) 2014, 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 8055910 |
| * @summary Arrays.copyOf doesn't perform subtype check |
| * |
| * @run main/othervm -XX:-BackgroundCompilation -XX:-UseOnStackReplacement |
| * compiler.arraycopy.TestArraysCopyOfNoTypeCheck |
| */ |
| |
| package compiler.arraycopy; |
| |
| import java.util.Arrays; |
| |
| public class TestArraysCopyOfNoTypeCheck { |
| |
| static class A { |
| } |
| |
| static class B extends A { |
| } |
| |
| static B[] test(A[] arr) { |
| return Arrays.copyOf(arr, 10, B[].class); |
| } |
| |
| static public void main(String[] args) { |
| A[] arr = new A[20]; |
| for (int i = 0; i < 20000; i++) { |
| test(arr); |
| } |
| A[] arr2 = new A[20]; |
| arr2[0] = new A(); |
| boolean exception = false; |
| try { |
| test(arr2); |
| } catch (ArrayStoreException ase) { |
| exception = true; |
| } |
| if (!exception) { |
| throw new RuntimeException("TEST FAILED: ArrayStoreException not thrown"); |
| } |
| } |
| } |