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annotate test/compiler/whitebox/CompilerWhiteBoxTest.java @ 10200:d1c9384eecb4

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8012322: Tiered: CompilationPolicy::can_be_compiled(CompLevel_all) mistakenly return false Reviewed-by: kvn, vlivanov
author iignatyev
date Fri, 26 Apr 2013 07:21:41 -0700
parents 4b2eebe03f93
children 11237ee74aae
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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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 import com.sun.management.HotSpotDiagnosticMXBean;
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25 import com.sun.management.VMOption;
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26 import sun.hotspot.WhiteBox;
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27 import sun.management.ManagementFactoryHelper;
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28
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29 import java.lang.reflect.Constructor;
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30 import java.lang.reflect.Executable;
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31 import java.lang.reflect.Method;
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32 import java.util.Objects;
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33 import java.util.concurrent.Callable;
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34
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35 /**
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36 * Abstract class for WhiteBox testing of JIT.
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37 *
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38 * @author igor.ignatyev@oracle.com
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39 */
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40 public abstract class CompilerWhiteBoxTest {
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41 /** {@code CompLevel::CompLevel_none} -- Interpreter */
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42 protected static int COMP_LEVEL_NONE = 0;
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43 /** {@code CompLevel::CompLevel_any}, {@code CompLevel::CompLevel_all} */
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44 protected static int COMP_LEVEL_ANY = -1;
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45 /** {@code CompLevel::CompLevel_simple} -- C1 */
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46 protected static int COMP_LEVEL_SIMPLE = 1;
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47 /** {@code CompLevel::CompLevel_full_optimization} -- C2 or Shark */
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48 protected static int COMP_LEVEL_FULL_OPTIMIZATION = 4;
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49
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50 /** Instance of WhiteBox */
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51 protected static final WhiteBox WHITE_BOX = WhiteBox.getWhiteBox();
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52 /** Value of {@code -XX:CompileThreshold} */
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53 protected static final int COMPILE_THRESHOLD
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54 = Integer.parseInt(getVMOption("CompileThreshold", "10000"));
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55 /** Value of {@code -XX:BackgroundCompilation} */
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56 protected static final boolean BACKGROUND_COMPILATION
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57 = Boolean.valueOf(getVMOption("BackgroundCompilation", "true"));
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58 /** Value of {@code -XX:TieredCompilation} */
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59 protected static final boolean TIERED_COMPILATION
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60 = Boolean.valueOf(getVMOption("TieredCompilation", "false"));
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61 /** Value of {@code -XX:TieredStopAtLevel} */
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62 protected static final int TIERED_STOP_AT_LEVEL
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63 = Integer.parseInt(getVMOption("TieredStopAtLevel", "0"));
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64
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65 /**
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66 * Returns value of VM option.
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67 *
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68 * @param name option's name
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69 * @return value of option or {@code null}, if option doesn't exist
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70 * @throws NullPointerException if name is null
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71 */
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72 protected static String getVMOption(String name) {
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73 Objects.requireNonNull(name);
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74 HotSpotDiagnosticMXBean diagnostic
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75 = ManagementFactoryHelper.getDiagnosticMXBean();
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76 VMOption tmp;
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77 try {
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78 tmp = diagnostic.getVMOption(name);
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79 } catch (IllegalArgumentException e) {
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80 tmp = null;
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81 }
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82 return (tmp == null ? null : tmp.getValue());
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83 }
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84
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85 /**
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86 * Returns value of VM option or default value.
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87 *
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88 * @param name option's name
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89 * @param defaultValue default value
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90 * @return value of option or {@code defaultValue}, if option doesn't exist
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91 * @throws NullPointerException if name is null
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92 * @see #getVMOption(String)
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93 */
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94 protected static String getVMOption(String name, String defaultValue) {
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95 String result = getVMOption(name);
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96 return result == null ? defaultValue : result;
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97 }
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98
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99 /** copy of is_c1_compile(int) from utilities/globalDefinitions.hpp */
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100 protected static boolean isC1Compile(int compLevel) {
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101 return (compLevel > COMP_LEVEL_NONE)
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102 && (compLevel < COMP_LEVEL_FULL_OPTIMIZATION);
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103 }
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104
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105 /** copy of is_c2_compile(int) from utilities/globalDefinitions.hpp */
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106 protected static boolean isC2Compile(int compLevel) {
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107 return compLevel == COMP_LEVEL_FULL_OPTIMIZATION;
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108 }
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109
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110 /** tested method */
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111 protected final Executable method;
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112 private final Callable<Integer> callable;
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113
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114 /**
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115 * Constructor.
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116 *
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117 * @param testCase object, that contains tested method and way to invoke it.
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118 */
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119 protected CompilerWhiteBoxTest(TestCase testCase) {
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120 Objects.requireNonNull(testCase);
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121 System.out.println("TEST CASE:" + testCase.name());
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122 method = testCase.executable;
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123 callable = testCase.callable;
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124 }
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125
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126 /**
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127 * Template method for testing. Prints tested method's info before
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128 * {@linkplain #test()} and after {@linkplain #test()} or on thrown
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129 * exception.
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130 *
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131 * @throws RuntimeException if method {@linkplain #test()} throws any
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132 * exception
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133 * @see #test()
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134 */
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135 protected final void runTest() {
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136 if (ManagementFactoryHelper.getCompilationMXBean() == null) {
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137 System.err.println(
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138 "Warning: test is not applicable in interpreted mode");
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139 return;
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140 }
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141 System.out.println("at test's start:");
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142 printInfo();
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143 try {
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144 test();
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145 } catch (Exception e) {
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146 System.out.printf("on exception '%s':", e.getMessage());
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147 printInfo();
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148 e.printStackTrace();
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149 if (e instanceof RuntimeException) {
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150 throw (RuntimeException) e;
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151 }
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152 throw new RuntimeException(e);
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153 }
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154 System.out.println("at test's end:");
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155 printInfo();
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156 }
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157
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158 /**
4b2eebe03f93 8011971: WB API doesn't accept j.l.reflect.Constructor
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159 * Checks, that {@linkplain #method} is not compiled.
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160 *
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161 * @throws RuntimeException if {@linkplain #method} is in compiler queue or
4b2eebe03f93 8011971: WB API doesn't accept j.l.reflect.Constructor
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162 * is compiled, or if {@linkplain #method} has zero
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163 * compilation level.
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164 */
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165 protected final void checkNotCompiled() {
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166 if (WHITE_BOX.isMethodQueuedForCompilation(method)) {
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167 throw new RuntimeException(method + " must not be in queue");
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168 }
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169 if (WHITE_BOX.isMethodCompiled(method)) {
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170 throw new RuntimeException(method + " must be not compiled");
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171 }
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172 if (WHITE_BOX.getMethodCompilationLevel(method) != 0) {
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173 throw new RuntimeException(method + " comp_level must be == 0");
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174 }
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175 }
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176
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177 /**
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178 * Checks, that {@linkplain #method} is compiled.
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179 *
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180 * @throws RuntimeException if {@linkplain #method} isn't in compiler queue
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181 * and isn't compiled, or if {@linkplain #method}
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182 * has nonzero compilation level
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183 */
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184 protected final void checkCompiled() {
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185 final long start = System.currentTimeMillis();
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186 waitBackgroundCompilation();
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187 if (WHITE_BOX.isMethodQueuedForCompilation(method)) {
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188 System.err.printf("Warning: %s is still in queue after %dms%n",
12e01444ca2d 8006683: Add WhiteBox API to testing of compiler
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189 method, System.currentTimeMillis() - start);
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190 return;
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191 }
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192 if (!WHITE_BOX.isMethodCompiled(method)) {
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193 throw new RuntimeException(method + " must be compiled");
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194 }
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195 if (WHITE_BOX.getMethodCompilationLevel(method) == 0) {
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196 throw new RuntimeException(method + " comp_level must be != 0");
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197 }
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198 }
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199
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200 /**
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201 * Waits for completion of background compilation of {@linkplain #method}.
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202 */
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203 protected final void waitBackgroundCompilation() {
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204 if (!BACKGROUND_COMPILATION) {
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205 return;
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206 }
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207 final Object obj = new Object();
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208 for (int i = 0; i < 10
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209 && WHITE_BOX.isMethodQueuedForCompilation(method); ++i) {
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210 synchronized (obj) {
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211 try {
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212 obj.wait(1000);
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213 } catch (InterruptedException e) {
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214 Thread.currentThread().interrupt();
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215 }
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216 }
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217 }
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218 }
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219
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220 /**
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221 * Prints information about {@linkplain #method}.
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222 */
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223 protected final void printInfo() {
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224 System.out.printf("%n%s:%n", method);
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225 System.out.printf("\tcompilable:\t%b%n",
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226 WHITE_BOX.isMethodCompilable(method));
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227 System.out.printf("\tcompiled:\t%b%n",
12e01444ca2d 8006683: Add WhiteBox API to testing of compiler
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228 WHITE_BOX.isMethodCompiled(method));
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229 System.out.printf("\tcomp_level:\t%d%n",
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230 WHITE_BOX.getMethodCompilationLevel(method));
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231 System.out.printf("\tin_queue:\t%b%n",
12e01444ca2d 8006683: Add WhiteBox API to testing of compiler
iignatyev
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232 WHITE_BOX.isMethodQueuedForCompilation(method));
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233 System.out.printf("compile_queues_size:\t%d%n%n",
12e01444ca2d 8006683: Add WhiteBox API to testing of compiler
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234 WHITE_BOX.getCompileQueuesSize());
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235 }
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236
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237 /**
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238 * Executes testing.
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239 */
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240 protected abstract void test() throws Exception;
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241
10113
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242 /**
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243 * Tries to trigger compilation of {@linkplain #method} by call
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244 * {@linkplain #callable} enough times.
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245 *
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246 * @return accumulated result
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247 * @see #compile(int)
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248 */
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249 protected final int compile() {
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250 return compile(Math.max(COMPILE_THRESHOLD, 150000));
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251 }
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252
10113
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253 /**
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254 * Tries to trigger compilation of {@linkplain #method} by call
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diff changeset
255 * {@linkplain #callable} specified times.
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diff changeset
256 *
4b2eebe03f93 8011971: WB API doesn't accept j.l.reflect.Constructor
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257 * @param count invocation count
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258 * @return accumulated result
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259 */
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260 protected final int compile(int count) {
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261 int result = 0;
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262 Integer tmp;
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263 for (int i = 0; i < count; ++i) {
10113
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diff changeset
264 try {
4b2eebe03f93 8011971: WB API doesn't accept j.l.reflect.Constructor
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diff changeset
265 tmp = callable.call();
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266 } catch (Exception e) {
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267 tmp = null;
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268 }
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269 result += tmp == null ? 0 : tmp;
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270 }
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271 System.out.println("method was invoked " + count + " times");
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272 return result;
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273 }
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274 }
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275
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276 /**
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277 * Utility structure containing tested method and object to invoke it.
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278 */
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279 enum TestCase {
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280 /** constructor test case */
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281 CONSTRUCTOR_TEST(Helper.CONSTRUCTOR, Helper.CONSTRUCTOR_CALLABLE),
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282 /** method test case */
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283 METOD_TEST(Helper.METHOD, Helper.METHOD_CALLABLE),
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diff changeset
284 /** static method test case */
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285 STATIC_TEST(Helper.STATIC, Helper.STATIC_CALLABLE);
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diff changeset
286
4b2eebe03f93 8011971: WB API doesn't accept j.l.reflect.Constructor
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diff changeset
287 /** tested method */
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288 final Executable executable;
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289 /** object to invoke {@linkplain #executable} */
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290 final Callable<Integer> callable;
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diff changeset
291
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diff changeset
292 private TestCase(Executable executable, Callable<Integer> callable) {
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diff changeset
293 this.executable = executable;
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diff changeset
294 this.callable = callable;
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295 }
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296
4b2eebe03f93 8011971: WB API doesn't accept j.l.reflect.Constructor
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diff changeset
297 private static class Helper {
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298 private static final Callable<Integer> CONSTRUCTOR_CALLABLE
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diff changeset
299 = new Callable<Integer>() {
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diff changeset
300 @Override
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diff changeset
301 public Integer call() throws Exception {
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diff changeset
302 return new Helper(1337).hashCode();
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diff changeset
303 }
4b2eebe03f93 8011971: WB API doesn't accept j.l.reflect.Constructor
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diff changeset
304 };
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diff changeset
305
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diff changeset
306 private static final Callable<Integer> METHOD_CALLABLE
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diff changeset
307 = new Callable<Integer>() {
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diff changeset
308 private final Helper helper = new Helper();
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diff changeset
309
4b2eebe03f93 8011971: WB API doesn't accept j.l.reflect.Constructor
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diff changeset
310 @Override
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311 public Integer call() throws Exception {
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312 return helper.method();
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313 }
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314 };
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315
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316 private static final Callable<Integer> STATIC_CALLABLE
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317 = new Callable<Integer>() {
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318 @Override
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319 public Integer call() throws Exception {
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320 return staticMethod();
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321 }
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322 };
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323
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324 private static final Constructor CONSTRUCTOR;
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325 private static final Method METHOD;
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326 private static final Method STATIC;
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327
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328 static {
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329 try {
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330 CONSTRUCTOR = Helper.class.getDeclaredConstructor(int.class);
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331 } catch (NoSuchMethodException | SecurityException e) {
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332 throw new RuntimeException(
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333 "exception on getting method Helper.<init>(int)", e);
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334 }
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335 try {
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336 METHOD = Helper.class.getDeclaredMethod("method");
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337 } catch (NoSuchMethodException | SecurityException e) {
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338 throw new RuntimeException(
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339 "exception on getting method Helper.method()", e);
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340 }
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341 try {
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342 STATIC = Helper.class.getDeclaredMethod("staticMethod");
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343 } catch (NoSuchMethodException | SecurityException e) {
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344 throw new RuntimeException(
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345 "exception on getting method Helper.staticMethod()", e);
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346 }
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347 }
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348
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349 private static int staticMethod() {
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350 return 1138;
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351 }
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352
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353 private int method() {
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354 return 42;
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355 }
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356
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357 private final int x;
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358
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359 public Helper() {
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360 x = 0;
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361 }
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362
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363 private Helper(int x) {
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364 this.x = x;
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365 }
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366
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367 @Override
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368 public int hashCode() {
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369 return x;
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370 }
8051
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371 }
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372 }