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annotate jvmci/jdk.vm.ci.hotspot.jfr/src/jdk/vm/ci/hotspot/jfr/events/JFREventProvider.java @ 23679:b5557b757040

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fix HotSpotVMConfig startup performance (JDK-8159167)
author Doug Simon <doug.simon@oracle.com>
date Wed, 15 Jun 2016 00:00:41 +0200
parents 1d4ce2d19e52
children 5cf445d2acf6
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1 /*
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2 * Copyright (c) 2014, 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 package jdk.vm.ci.hotspot.jfr.events;
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24
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25 import java.net.URISyntaxException;
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26
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27 import jdk.vm.ci.hotspot.HotSpotJVMCIRuntime;
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28 import jdk.vm.ci.hotspot.HotSpotVMConfigAccess;
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29 import jdk.vm.ci.hotspot.services.EventProvider;
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30
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31 /**
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32 * A JFR implementation for {@link EventProvider}. This implementation is used when Flight Recorder
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33 * is turned on.
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34 *
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35 * Note: The use of fully qualified names for deprecated types is a workaround for
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36 * <a href="https://bugs.openjdk.java.net/browse/JDK-8032211">JDK-8032211</a>.
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37 */
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38 @SuppressWarnings("deprecation")
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39 public final class JFREventProvider extends EventProvider {
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40
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41 private final boolean enabled;
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42
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43 /**
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44 * Need to store the producer in a field so that it doesn't disappear.
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45 */
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46 @SuppressWarnings("unused") private final com.oracle.jrockit.jfr.Producer producer;
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47
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48 public JFREventProvider() {
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49 HotSpotVMConfigAccess config = new HotSpotVMConfigAccess(HotSpotJVMCIRuntime.runtime().getConfigStore());
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50 enabled = config.getFlag("FightRecorder", Boolean.class, false);
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51 com.oracle.jrockit.jfr.Producer p = null;
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52 if (enabled) {
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53 try {
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54 /*
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55 * The "HotSpot JVM" producer is a native producer and we cannot use it. So we
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56 * create our own. This has the downside that Mission Control is confused and
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57 * doesn't show JVMCI events in the "Code" tab. There are plans to revise the JFR
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58 * code for JDK 9.
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59 */
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60 p = new com.oracle.jrockit.jfr.Producer("HotSpot JVM", "Oracle Hotspot JVM", "http://www.oracle.com/hotspot/jvm/");
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61 p.register();
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62 // Register event classes with Producer.
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63 for (Class<?> c : JFREventProvider.class.getDeclaredClasses()) {
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64 if (c.isAnnotationPresent(com.oracle.jrockit.jfr.EventDefinition.class)) {
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65 assert com.oracle.jrockit.jfr.InstantEvent.class.isAssignableFrom(c) : c;
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66 registerEvent(p, c);
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67 }
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68 }
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69 } catch (URISyntaxException e) {
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70 throw new InternalError(e);
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71 }
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72 }
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73 this.producer = p;
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74 }
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75
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76 /**
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77 * Register an event class with the {@link com.oracle.jrockit.jfr.Producer}.
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78 *
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79 * @param c event class
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80 * @return the {@link EventToken event token}
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81 */
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82 @SuppressWarnings({"javadoc", "unchecked"})
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83 private static com.oracle.jrockit.jfr.EventToken registerEvent(com.oracle.jrockit.jfr.Producer producer, Class<?> c) {
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84 try {
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85 return producer.addEvent((Class<? extends com.oracle.jrockit.jfr.InstantEvent>) c);
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86 } catch (com.oracle.jrockit.jfr.InvalidEventDefinitionException | com.oracle.jrockit.jfr.InvalidValueException e) {
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87 throw new InternalError(e);
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88 }
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89 }
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90
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91 @Override
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92 public CompilationEvent newCompilationEvent() {
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93 if (enabled) {
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94 return new JFRCompilationEvent();
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95 }
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96 return EventProvider.createEmptyCompilationEvent();
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97 }
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98
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99 /**
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100 * A JFR compilation event.
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101 *
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102 * <p>
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103 * See: event {@code Compilation} in {@code src/share/vm/trace/trace.xml}
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104 */
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105 @com.oracle.jrockit.jfr.EventDefinition(name = "Compilation", path = "vm/compiler/compilation")
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106 public static class JFRCompilationEvent extends com.oracle.jrockit.jfr.DurationEvent implements CompilationEvent {
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107
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108 /**
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109 * Should be a {@code Method*} but we can't express that in Java.
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110 */
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111 @com.oracle.jrockit.jfr.ValueDefinition(name = "Java Method") public String method;
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112 @com.oracle.jrockit.jfr.ValueDefinition(name = "Compilation ID", relationKey = "COMP_ID") public int compileId;
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113 @com.oracle.jrockit.jfr.ValueDefinition(name = "Compilation Level") public short compileLevel;
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114 @com.oracle.jrockit.jfr.ValueDefinition(name = "Succeeded") public boolean succeeded;
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115 @com.oracle.jrockit.jfr.ValueDefinition(name = "On Stack Replacement") public boolean isOsr;
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116 @com.oracle.jrockit.jfr.ValueDefinition(name = "Compiled Code Size", contentType = com.oracle.jrockit.jfr.ContentType.Bytes) public int codeSize;
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117 @com.oracle.jrockit.jfr.ValueDefinition(name = "Inlined Code Size", contentType = com.oracle.jrockit.jfr.ContentType.Bytes) public int inlinedBytes;
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118
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119 public void setMethod(String method) {
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120 this.method = method;
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121 }
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122
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123 public void setCompileId(int id) {
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124 this.compileId = id;
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125 }
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126
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127 public void setCompileLevel(int compileLevel) {
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128 this.compileLevel = (short) compileLevel;
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129 }
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130
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131 public void setSucceeded(boolean succeeded) {
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132 this.succeeded = succeeded;
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133 }
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134
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135 public void setIsOsr(boolean isOsr) {
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136 this.isOsr = isOsr;
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137 }
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138
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139 public void setCodeSize(int codeSize) {
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140 this.codeSize = codeSize;
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141 }
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142
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143 public void setInlinedBytes(int inlinedBytes) {
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144 this.inlinedBytes = inlinedBytes;
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145 }
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146 }
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147
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148 @Override
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149 public CompilerFailureEvent newCompilerFailureEvent() {
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150 if (enabled) {
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151 return new JFRCompilerFailureEvent();
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152 }
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153 return EventProvider.createEmptyCompilerFailureEvent();
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154 }
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155
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156 /**
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157 * A JFR compiler failure event.
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158 *
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159 * <p>
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160 * See: event {@code CompilerFailure} in {@code src/share/vm/trace/trace.xml}
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161 */
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162 @com.oracle.jrockit.jfr.EventDefinition(name = "Compilation Failure", path = "vm/compiler/failure")
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163 public static class JFRCompilerFailureEvent extends com.oracle.jrockit.jfr.InstantEvent implements CompilerFailureEvent {
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164
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165 @com.oracle.jrockit.jfr.ValueDefinition(name = "Compilation ID", relationKey = "COMP_ID") public int compileId;
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166 @com.oracle.jrockit.jfr.ValueDefinition(name = "Message", description = "The failure message") public String failure;
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167
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168 public void setCompileId(int id) {
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169 this.compileId = id;
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170 }
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171
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172 public void setMessage(String message) {
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173 this.failure = message;
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174 }
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175 }
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176
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177 }