DeoptReallocFailure.java revision 11707:ad7af1afda7a 
1/*
2 * Copyright (c) 2016, 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 8146416
27 * @library /test/lib /testlibrary /
28 *
29 * @build sun.hotspot.WhiteBox
30 * @run driver ClassFileInstaller sun.hotspot.WhiteBox
31 *                                sun.hotspot.WhiteBox$WhiteBoxPermission
32 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
33 *      -XX:+WhiteBoxAPI -Xbatch -Xmx100m
34 *      -XX:CompileCommand=exclude,compiler.uncommontrap.DeoptReallocFailure::main
35 *      compiler.uncommontrap.DeoptReallocFailure
36 *
37 */
38
39package compiler.uncommontrap;
40
41import sun.hotspot.WhiteBox;
42
43import java.lang.reflect.Method;
44
45public class DeoptReallocFailure {
46    static class MemoryChunk {
47        MemoryChunk other;
48        Object[][] array;
49
50        MemoryChunk(MemoryChunk other) {
51            this.other = other;
52            array = new Object[1024 * 256][];
53        }
54    }
55
56    static class NoEscape {
57        long f1;
58    }
59
60    static MemoryChunk root;
61    private static final WhiteBox WB = WhiteBox.getWhiteBox();
62
63    public static synchronized long  test() {
64        NoEscape[] noEscape = new NoEscape[45];
65        noEscape[0] = new NoEscape();
66        for (int i=0;i<1024*256;i++) {
67           root.array[i]= new Object[45];
68        }
69        return noEscape[0].f1;
70    }
71
72    public static void main(String[] args) throws Throwable {
73
74        //Exhaust Memory
75        root = null;
76        try {
77            while (true) {
78                root = new MemoryChunk(root);
79            }
80        } catch (OutOfMemoryError oom) {
81        }
82
83        if (root == null) {
84          return;
85        }
86
87        try {
88            NoEscape dummy = new NoEscape();
89            Method m = DeoptReallocFailure.class.getMethod("test");
90            WB.enqueueMethodForCompilation(m, 4);
91            test();
92        } catch (OutOfMemoryError oom) {
93            root = null;
94            oom.printStackTrace();
95        }
96        System.out.println("TEST PASSED");
97    }
98}
99