1 /* 2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* 25 * @test 26 * @bug 8055910 27 * @summary Arrays.copyOf doesn't perform subtype check 28 * 29 * @run main/othervm -XX:-BackgroundCompilation -XX:-UseOnStackReplacement 30 * compiler.arraycopy.TestArraysCopyOfNoTypeCheck 31 */ 32 33 package compiler.arraycopy; 34 35 import java.util.Arrays; 36 37 public class TestArraysCopyOfNoTypeCheck { 38 39 static class A { 40 } 41 42 static class B extends A { 43 } 44 45 static B[] test(A[] arr) { 46 return Arrays.copyOf(arr, 10, B[].class); 47 } 48 49 static public void main(String[] args) { 50 A[] arr = new A[20]; 51 for (int i = 0; i < 20000; i++) { 52 test(arr); 53 } 54 A[] arr2 = new A[20]; 55 arr2[0] = new A(); 56 boolean exception = false; 57 try { 58 test(arr2); 59 } catch (ArrayStoreException ase) { 60 exception = true; 61 } 62 if (!exception) { 63 throw new RuntimeException("TEST FAILED: ArrayStoreException not thrown"); 64 } 65 } 66 }