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comparison test/gc/metaspace/ClassMetaspaceSizeInJmapHeap.java @ 8114:9a094d29af19

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8004924: NPG: jmap -heap output should contain ClassMetaspaceSize value Reviewed-by: stefank, mgerdin
author ehelin
date Wed, 06 Feb 2013 07:48:02 +0100
parents
children 8bf6338972ce
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8113:3d3379aab292 8114:9a094d29af19
1 /*
2 * Copyright (c) 2013, 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 ClassMetaspaceSizeInJmapHeap
26 * @bug 8004924
27 * @summary Checks that jmap -heap contains the flag ClassMetaspaceSize
28 * @library /testlibrary
29 * @run main/othervm -XX:ClassMetaspaceSize=50m ClassMetaspaceSizeInJmapHeap
30 */
31
32 import com.oracle.java.testlibrary.*;
33 import java.nio.file.*;
34 import java.io.File;
35 import java.nio.charset.Charset;
36 import java.util.List;
37
38 public class ClassMetaspaceSizeInJmapHeap {
39 public static void main(String[] args) throws Exception {
40 String pid = Integer.toString(ProcessTools.getProcessId());
41
42 ProcessBuilder pb = new ProcessBuilder();
43 pb.command(JDKToolFinder.getJDKTool("jmap"), "-heap", pid);
44
45 File out = new File("ClassMetaspaceSizeInJmapHeap.stdout.txt");
46 pb.redirectOutput(out);
47
48 File err = new File("ClassMetaspaceSizeInJmapHeap.stderr.txt");
49 pb.redirectError(err);
50
51 run(pb);
52
53 OutputAnalyzer output = new OutputAnalyzer(read(out));
54 output.shouldContain("ClassMetaspaceSize = 52428800 (50.0MB)");
55 out.delete();
56 }
57
58 private static void run(ProcessBuilder pb) throws Exception {
59 Process p = pb.start();
60 p.waitFor();
61 int exitValue = p.exitValue();
62 if (exitValue != 0) {
63 throw new Exception("jmap -heap exited with error code: " + exitValue);
64 }
65 }
66
67 private static String read(File f) throws Exception {
68 Path p = f.toPath();
69 List<String> lines = Files.readAllLines(p, Charset.defaultCharset());
70
71 StringBuilder sb = new StringBuilder();
72 for (String line : lines) {
73 sb.append(line).append('\n');
74 }
75 return sb.toString();
76 }
77 }