1 /*
2  * Copyright (c) 2014, 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
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22  */
23 import java.io.PrintWriter;
24 import com.oracle.java.testlibrary.*;
25 
26 /*
27  * Test to verify GetObjectSize does not overflow on a 600M element int[]
28  *
29  * @test
30  * @bug 8027230
31  * @library /testlibrary
32  * @build ClassFileInstaller com.oracle.java.testlibrary.* GetObjectSizeOverflowAgent
33  * @run main ClassFileInstaller GetObjectSizeOverflowAgent
34  * @run main GetObjectSizeOverflow
35  */
36 public class GetObjectSizeOverflow {
main(String[] args)37     public static void main(String[] args) throws Exception  {
38 
39         if (!Platform.is64bit()) {
40             System.out.println("Test needs a 4GB heap and can only be run as a 64bit process, skipping.");
41             return;
42         }
43 
44         PrintWriter pw = new PrintWriter("MANIFEST.MF");
45         pw.println("Premain-Class: GetObjectSizeOverflowAgent");
46         pw.close();
47 
48         ProcessBuilder pb = new ProcessBuilder();
49         pb.command(new String[] { JDKToolFinder.getJDKTool("jar"), "cmf", "MANIFEST.MF", "agent.jar", "GetObjectSizeOverflowAgent.class"});
50         pb.start().waitFor();
51 
52         ProcessBuilder pt = ProcessTools.createJavaProcessBuilder(true, "-Xmx4000m", "-javaagent:agent.jar",  "GetObjectSizeOverflowAgent");
53         OutputAnalyzer output = new OutputAnalyzer(pt.start());
54 
55         if (output.getStdout().contains("Could not reserve enough space") || output.getStderr().contains("java.lang.OutOfMemoryError")) {
56             System.out.println("stdout: " + output.getStdout());
57             System.out.println("stderr: " + output.getStderr());
58             System.out.println("Test could not reserve or allocate enough space, skipping");
59             return;
60         }
61 
62         output.stdoutShouldContain("GetObjectSizeOverflow passed");
63     }
64 }
65