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annotate test/gc/metaspace/CompressedClassSpaceSizeInJmapHeap.java @ 12226:7944aba7ba41

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8015107: NPG: Use consistent naming for metaspace concepts Reviewed-by: coleenp, mgerdin, hseigel
author ehelin
date Mon, 12 Aug 2013 17:37:02 +0200
parents test/gc/metaspace/ClassMetaspaceSizeInJmapHeap.java@8bf6338972ce
children
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1 /*
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2 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23
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24 /*
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25 * @test CompressedClassSpaceSizeInJmapHeap
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26 * @bug 8004924
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27 * @summary Checks that jmap -heap contains the flag CompressedClassSpaceSize
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28 * @library /testlibrary
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29 * @run main/othervm -XX:CompressedClassSpaceSize=50m CompressedClassSpaceSizeInJmapHeap
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30 */
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31
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32 import com.oracle.java.testlibrary.*;
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33 import java.nio.file.*;
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34 import java.io.File;
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35 import java.nio.charset.Charset;
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36 import java.util.List;
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37
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38 public class CompressedClassSpaceSizeInJmapHeap {
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39 public static void main(String[] args) throws Exception {
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40 String pid = Integer.toString(ProcessTools.getProcessId());
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41
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42 JDKToolLauncher jmap = JDKToolLauncher.create("jmap")
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43 .addToolArg("-heap")
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44 .addToolArg(pid);
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45 ProcessBuilder pb = new ProcessBuilder(jmap.getCommand());
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46
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47 File out = new File("CompressedClassSpaceSizeInJmapHeap.stdout.txt");
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48 pb.redirectOutput(out);
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49
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50 File err = new File("CompressedClassSpaceSizeInJmapHeap.stderr.txt");
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51 pb.redirectError(err);
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52
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53 run(pb);
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54
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55 OutputAnalyzer output = new OutputAnalyzer(read(out));
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56 output.shouldContain("CompressedClassSpaceSize = 52428800 (50.0MB)");
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57 out.delete();
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58 }
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59
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60 private static void run(ProcessBuilder pb) throws Exception {
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61 Process p = pb.start();
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62 p.waitFor();
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63 int exitValue = p.exitValue();
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64 if (exitValue != 0) {
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65 throw new Exception("jmap -heap exited with error code: " + exitValue);
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66 }
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67 }
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68
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69 private static String read(File f) throws Exception {
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70 Path p = f.toPath();
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71 List<String> lines = Files.readAllLines(p, Charset.defaultCharset());
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72
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73 StringBuilder sb = new StringBuilder();
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74 for (String line : lines) {
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75 sb.append(line).append('\n');
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76 }
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77 return sb.toString();
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78 }
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79 }