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 }