116 lines
4.5 KiB
Java
116 lines
4.5 KiB
Java
/*
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* Copyright (c) 2006, 2017, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 5045582
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* @summary arrays larger than 1<<30
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* @author Martin Buchholz
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*/
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// A proper regression test for 5045582 requires too much memory.
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// If you have a really big machine, run like this:
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// java -Xms25g -Xmx25g Big 30
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import java.util.*;
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public class Big {
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private static void realMain(String[] args) throws Throwable {
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final int shift = intArg(args, 0, 10); // "30" is real test
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final int tasks = intArg(args, 1, ~0); // all tasks
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final int n = (1<<shift) + 47;
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// To test byte arrays larger than 1<<30, you need 1600MB. Run like:
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// java -Xms1600m -Xmx1600m Big 30 1
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if ((tasks & 0x1) != 0) {
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System.out.println("byte[]");
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System.gc();
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byte[] a = new byte[n];
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a[0] = (byte) -44;
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a[1] = (byte) -43;
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a[n-2] = (byte) +43;
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a[n-1] = (byte) +44;
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for (int i : new int[] { 0, 1, n-2, n-1 })
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try { equal(i, Arrays.binarySearch(a, a[i])); }
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catch (Throwable t) { unexpected(t); }
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for (int i : new int[] { n-2, n-1 })
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try { equal(i, Arrays.binarySearch(a, n-5, n, a[i])); }
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catch (Throwable t) { unexpected(t); }
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a[n-19] = (byte) 45;
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try { Arrays.sort(a, n-29, n); }
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catch (Throwable t) { unexpected(t); }
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equal(a[n-1], (byte) 45);
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equal(a[n-2], (byte) 44);
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equal(a[n-3], (byte) 43);
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equal(a[n-4], (byte) 0);
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}
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// To test Object arrays larger than 1<<30, you need 13GB. Run like:
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// java -Xms13g -Xmx13g Big 30 2
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if ((tasks & 0x2) != 0) {
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System.out.println("Integer[]");
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System.gc();
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Integer[] a = new Integer[n];
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Integer ZERO = 0;
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Arrays.fill(a, ZERO);
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a[0] = -44;
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a[1] = -43;
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a[n-2] = +43;
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a[n-1] = +44;
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for (int i : new int[] { 0, 1, n-2, n-1 })
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try { equal(i, Arrays.binarySearch(a, a[i])); }
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catch (Throwable t) { unexpected(t); }
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for (int i : new int[] { n-2, n-1 })
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try { equal(i, Arrays.binarySearch(a, n-5, n, a[i])); }
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catch (Throwable t) { unexpected(t); }
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a[n-19] = 45;
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try { Arrays.sort(a, n-29, n); }
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catch (Throwable t) { unexpected(t); }
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equal(a[n-1], 45);
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equal(a[n-2], 44);
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equal(a[n-3], 43);
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equal(a[n-4], 0);
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}
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}
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//--------------------- Infrastructure ---------------------------
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static volatile int passed = 0, failed = 0;
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static void pass() {passed++;}
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static void fail() {failed++; Thread.dumpStack();}
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static void fail(String msg) {System.out.println(msg); fail();}
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static void unexpected(Throwable t) {failed++; t.printStackTrace();}
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static void check(boolean cond) {if (cond) pass(); else fail();}
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static void equal(Object x, Object y) {
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if (x == null ? y == null : x.equals(y)) pass();
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else fail(x + " not equal to " + y);}
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public static void main(String[] args) throws Throwable {
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try {realMain(args);} catch (Throwable t) {unexpected(t);}
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System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed);
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if (failed > 0) throw new AssertionError("Some tests failed");}
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static int intArg(String[] args, int i, int defaultValue) {
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return args.length > i ? Integer.parseInt(args[i]) : defaultValue;}
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}
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