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annotate test/gc/6941923/Test6941923.java @ 14909:4ca6dc0799b6

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Backout jdk9 merge
author Gilles Duboscq <duboscq@ssw.jku.at>
date Tue, 01 Apr 2014 13:57:07 +0200
parents de6a9e811145
children 89152779163c
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9074
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1 /*
14909
4ca6dc0799b6 Backout jdk9 merge
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 14223
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2 * Copyright (c) 2012, 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 Test6941923.java
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26 * @bug 6941923
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27 * @summary test flags for gc log rotation
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28 * @library /testlibrary
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29 * @run main/othervm/timeout=600 Test6941923
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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.io.File;
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34 import java.io.FilenameFilter;
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35 import java.util.ArrayList;
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36 import java.util.Arrays;
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37
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38 class GCLoggingGenerator {
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39
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40 public static void main(String[] args) throws Exception {
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41
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42 long sizeOfLog = Long.parseLong(args[0]);
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43 long lines = sizeOfLog / 80;
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44 // full.GC generates ad least 1-line which is not shorter then 80 chars
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45 // for some GC 2 shorter lines are generated
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46 for (long i = 0; i < lines; i++) {
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47 System.gc();
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48 }
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49 }
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50 }
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51
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52 public class Test6941923 {
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53
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54 static final File currentDirectory = new File(".");
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55 static final String logFileName = "test.log";
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56 static final int logFileSizeK = 16;
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57 static FilenameFilter logFilter = new FilenameFilter() {
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58 @Override
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59 public boolean accept(File dir, String name) {
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60 return name.startsWith(logFileName);
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61 }
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62 };
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63
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64 public static void cleanLogs() {
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65 for (File log : currentDirectory.listFiles(logFilter)) {
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66 if (!log.delete()) {
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67 throw new Error("Unable to delete " + log.getAbsolutePath());
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68 }
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69 }
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70 }
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71
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72 public static void runTest(int numberOfFiles) throws Exception {
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73
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74 ArrayList<String> args = new ArrayList();
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75 String[] logOpts = new String[]{
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76 "-cp", System.getProperty("java.class.path"),
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77 "-Xloggc:" + logFileName,
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78 "-XX:-DisableExplicitGC", // to sure that System.gc() works
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79 "-XX:+PrintGC", "-XX:+PrintGCDetails", "-XX:+UseGCLogFileRotation",
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80 "-XX:NumberOfGCLogFiles=" + numberOfFiles,
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81 "-XX:GCLogFileSize=" + logFileSizeK + "K", "-Xmx128M"};
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82 // System.getProperty("test.java.opts") is '' if no options is set
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83 // need to skip such empty
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84 String[] externalVMopts = System.getProperty("test.java.opts").length() == 0
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85 ? new String[0]
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86 : System.getProperty("test.java.opts").split(" ");
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87 args.addAll(Arrays.asList(externalVMopts));
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88 args.addAll(Arrays.asList(logOpts));
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89 args.add(GCLoggingGenerator.class.getName());
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90 args.add(String.valueOf(numberOfFiles * logFileSizeK * 1024));
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91 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(args.toArray(new String[0]));
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92 pb.redirectErrorStream(true);
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93 pb.redirectOutput(new File(GCLoggingGenerator.class.getName() + ".log"));
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94 Process process = pb.start();
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95 int result = process.waitFor();
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96 if (result != 0) {
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97 throw new Error("Unexpected exit code = " + result);
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98 }
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99 File[] logs = currentDirectory.listFiles(logFilter);
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100 int smallFilesNumber = 0;
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101 for (File log : logs) {
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102 if (log.length() < logFileSizeK * 1024) {
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103 smallFilesNumber++;
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104 }
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105 }
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106 if (logs.length != numberOfFiles) {
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107 throw new Error("There are only " + logs.length + " logs instead " + numberOfFiles);
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108 }
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109 if (smallFilesNumber > 1) {
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110 throw new Error("There should maximum one log with size < " + logFileSizeK + "K");
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111 }
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112 }
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113
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114 public static void main(String[] args) throws Exception {
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115 cleanLogs();
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116 runTest(1);
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117 cleanLogs();
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118 runTest(3);
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119 cleanLogs();
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120 }
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121 }