hotspot/test/compiler/6892265/Test.java
author kvn
Thu, 03 Dec 2009 14:20:22 -0800
changeset 5119 7bf54ea07181
child 5547 f4b087cbb361
permissions -rw-r--r--
6892265: System.arraycopy unable to reference elements beyond Integer.MAX_VALUE bytes Summary: Use size_t type cast to widen int values in typeArrayKlass::copy_array(). Reviewed-by: never, jcoomes
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/*
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 * Copyright 2009 Sun Microsystems, Inc.  All Rights Reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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 * CA 95054 USA or visit www.sun.com if you need additional information or
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 * have any questions.
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 *
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 */
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/**
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 * @test
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 * @bug 6892265
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 * @summary System.arraycopy unable to reference elements beyond Integer.MAX_VALUE bytes
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 *
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 * @run main/othervm Test
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 */
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public class Test {
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  static  final int NCOPY = 1;
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  static  final int OVERFLOW = 1;
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  static  int[] src2 = new int[NCOPY];
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  static  int[] dst2;
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  static void test() {
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    int N;
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    int SIZE;
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    N = Integer.MAX_VALUE/4 + OVERFLOW;
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    System.arraycopy(src2, 0, dst2, N, NCOPY);
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    System.arraycopy(dst2, N, src2, 0, NCOPY);
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  }
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  public static void main(String[] args) {
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    try {
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      dst2 = new int[NCOPY + Integer.MAX_VALUE/4 + OVERFLOW];
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    } catch (OutOfMemoryError e) {
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       System.exit(95); // Not enough memory
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    }
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    System.out.println("warmup");
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    for (int i=0; i <11000; i++) {
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      test();
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    }
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    System.out.println("start");
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    for (int i=0; i <1000; i++) {
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      test();
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    }
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    System.out.println("finish");
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  }
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}