1 /* 2 * Copyright (c) 2019, 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 8224539 27 * @summary Test arraycopy optimizations with bad src/dst array offsets. 28 * @run main/othervm -Xbatch -XX:+AlwaysIncrementalInline 29 * compiler.arraycopy.TestArrayCopyWithBadOffset 30 */ 31 32 package compiler.arraycopy; 33 34 public class TestArrayCopyWithBadOffset { 35 36 public static byte[] getSrc() { 37 return new byte[5]; 38 } 39 40 // Test bad src offset 41 public static void test1(byte[] dst) { 42 byte[] src = getSrc(); 43 try { 44 System.arraycopy(src, Integer.MAX_VALUE-1, dst, 0, src.length); 45 } catch (Exception e) { 46 // Expected 47 } 48 } 49 50 public static byte[] getDst() { 51 return new byte[5]; 52 } 53 54 // Test bad dst offset 55 public static void test2(byte[] src) { 56 byte[] dst = getDst(); 57 try { 58 System.arraycopy(src, 0, dst, Integer.MAX_VALUE-1, dst.length); 59 } catch (Exception e) { 60 // Expected 61 } 62 } 63 64 public static void main(String[] args) { 65 byte[] array = new byte[5]; 66 for (int i = 0; i < 10_000; ++i) { 67 test1(array); 68 test2(array); 69 } 70 } 71 }