1 /*
 2  * Copyright (c) 2018, Red Hat, Inc. 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 /**
26  * @test
27  * @summary Test that allocation of the object larger than heap fails predictably
28  * @requires vm.gc.Shenandoah
29  * @library /test/lib
30  * @run driver TestAllocLargerThanHeap
31  */
32 
33 import jdk.test.lib.process.OutputAnalyzer;
34 import jdk.test.lib.process.ProcessTools;
35 
36 public class TestAllocLargerThanHeap {
37 
38     static final int SIZE = 16 * 1024 * 1024;
39 
40     static volatile Object sink;
41 
42     public static void work() throws Exception {
43         sink = new Object[SIZE];
44     }
45 
46     public static void main(String[] args) throws Exception {
47         if (args.length > 0) {
48             work();
49             return;
50         }
51 
52         {
53             OutputAnalyzer analyzer = ProcessTools.executeLimitedTestJava(
54                     "-Xmx16m",
55                     "-XX:+UnlockExperimentalVMOptions",
56                     "-XX:+UseShenandoahGC",
57                     TestAllocLargerThanHeap.class.getName(),
58                     "test");
59 
60             analyzer.shouldHaveExitValue(1);
61             analyzer.shouldContain("java.lang.OutOfMemoryError: Java heap space");
62         }
63 
64         {
65             OutputAnalyzer analyzer = ProcessTools.executeLimitedTestJava(
66                     "-Xmx1g",
67                     "-XX:+UnlockExperimentalVMOptions",
68                     "-XX:+UseShenandoahGC",
69                     TestAllocLargerThanHeap.class.getName(),
70                     "test");
71 
72             analyzer.shouldHaveExitValue(0);
73             analyzer.shouldNotContain("java.lang.OutOfMemoryError: Java heap space");
74         }
75     }
76 }