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annotate test/compiler/types/TestMeetIncompatibleInterfaceArrays.java @ 24155:88bd5f7522a1 jvmci-0.30

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update hgignore and undo change to hotspot/.project
author Doug Simon <doug.simon@oracle.com>
date Fri, 07 Jul 2017 15:08:58 +0200
parents 09687c445ce1
children
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1 /*
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2 * Copyright 2015 SAP AG. 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
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26 * @bug 8141551
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27 * @summary C2 can not handle returns with inccompatible interface arrays
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28 * @library /testlibrary /testlibrary/whitebox/
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29 * @build sun.hotspot.WhiteBox
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30 * @run main ClassFileInstaller sun.hotspot.WhiteBox
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31 * sun.hotspot.WhiteBox$WhiteBoxPermission
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32 * @run main/othervm
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33 * -Xbootclasspath/a:.
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34 * -XX:+UnlockDiagnosticVMOptions
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35 * -XX:+WhiteBoxAPI
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36 * -Xbatch
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37 * -XX:CompileThreshold=1
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38 * -XX:-TieredCompilation
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39 * -XX:CICompilerCount=1
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40 * -XX:+PrintCompilation
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41 * -XX:+PrintInlining
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42 * -XX:CompileCommand=compileonly,MeetIncompatibleInterfaceArrays*.run
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43 * -XX:CompileCommand=dontinline,TestMeetIncompatibleInterfaceArrays$Helper.createI2*
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44 * -XX:CompileCommand=quiet
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45 * TestMeetIncompatibleInterfaceArrays 0
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46 * @run main/othervm
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47 * -Xbootclasspath/a:.
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48 * -XX:+UnlockDiagnosticVMOptions
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49 * -XX:+WhiteBoxAPI
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50 * -Xbatch
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51 * -XX:CompileThreshold=1
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52 * -XX:-TieredCompilation
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53 * -XX:CICompilerCount=1
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54 * -XX:+PrintCompilation
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55 * -XX:+PrintInlining
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56 * -XX:CompileCommand=compileonly,MeetIncompatibleInterfaceArrays*.run
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57 * -XX:CompileCommand=inline,TestMeetIncompatibleInterfaceArrays$Helper.createI2*
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58 * -XX:CompileCommand=quiet
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59 * TestMeetIncompatibleInterfaceArrays 1
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60 * @run main/othervm
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61 * -Xbootclasspath/a:.
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62 * -XX:+UnlockDiagnosticVMOptions
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63 * -XX:+WhiteBoxAPI
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64 * -Xbatch
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65 * -XX:CompileThreshold=1
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66 * -XX:Tier0InvokeNotifyFreqLog=0 -XX:Tier2InvokeNotifyFreqLog=0 -XX:Tier3InvokeNotifyFreqLog=0 -XX:Tier23InlineeNotifyFreqLog=0
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67 * -XX:Tier3InvocationThreshold=2 -XX:Tier3MinInvocationThreshold=2 -XX:Tier3CompileThreshold=2
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68 * -XX:Tier4InvocationThreshold=1 -XX:Tier4MinInvocationThreshold=1 -XX:Tier4CompileThreshold=1
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69 * -XX:+TieredCompilation
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70 * -XX:CICompilerCount=2
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71 * -XX:+PrintCompilation
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72 * -XX:+PrintInlining
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73 * -XX:CompileCommand=compileonly,MeetIncompatibleInterfaceArrays*.run
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74 * -XX:CompileCommand=compileonly,TestMeetIncompatibleInterfaceArrays$Helper.createI2*
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75 * -XX:CompileCommand=inline,TestMeetIncompatibleInterfaceArrays$Helper.createI2*
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76 * -XX:CompileCommand=quiet
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77 * TestMeetIncompatibleInterfaceArrays 2
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78 *
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79 * @author volker.simonis@gmail.com
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80 */
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81
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82 import java.io.FileOutputStream;
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83 import java.lang.reflect.InvocationTargetException;
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84 import java.lang.reflect.Method;
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85 import jdk.internal.org.objectweb.asm.ClassWriter;
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86 import jdk.internal.org.objectweb.asm.MethodVisitor;
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87 import static jdk.internal.org.objectweb.asm.Opcodes.*;
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88 import sun.hotspot.WhiteBox;
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89
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90 public class TestMeetIncompatibleInterfaceArrays extends ClassLoader {
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91
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92 private static final WhiteBox WB = WhiteBox.getWhiteBox();
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93
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94 public static interface I1 { public String getName(); }
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95 public static interface I2 { public String getName(); }
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96 public static class I2C implements I2 { public String getName() { return "I2";} }
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97 public static class I21C implements I2, I1 { public String getName() { return "I2 and I1";} }
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98
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99 public static class Helper {
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100 public static I2 createI2Array0() {
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101 return new I2C();
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102 }
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103 public static I2[] createI2Array1() {
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104 return new I2C[] { new I2C() };
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105 }
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106 public static I2[][] createI2Array2() {
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107 return new I2C[][] { new I2C[] { new I2C() } };
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108 }
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109 public static I2[][][] createI2Array3() {
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110 return new I2C[][][] { new I2C[][] { new I2C[] { new I2C() } } };
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111 }
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112 public static I2[][][][] createI2Array4() {
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113 return new I2C[][][][] { new I2C[][][] { new I2C[][] { new I2C[] { new I2C() } } } };
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114 }
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115 public static I2[][][][][] createI2Array5() {
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116 return new I2C[][][][][] { new I2C[][][][] { new I2C[][][] { new I2C[][] { new I2C[] { new I2C() } } } } };
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117 }
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118 public static I2 createI21Array0() {
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119 return new I21C();
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120 }
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121 public static I2[] createI21Array1() {
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122 return new I21C[] { new I21C() };
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123 }
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124 public static I2[][] createI21Array2() {
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125 return new I21C[][] { new I21C[] { new I21C() } };
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126 }
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127 public static I2[][][] createI21Array3() {
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128 return new I21C[][][] { new I21C[][] { new I21C[] { new I21C() } } };
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129 }
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130 public static I2[][][][] createI21Array4() {
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131 return new I21C[][][][] { new I21C[][][] { new I21C[][] { new I21C[] { new I21C() } } } };
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132 }
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133 public static I2[][][][][] createI21Array5() {
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134 return new I21C[][][][][] { new I21C[][][][] { new I21C[][][] { new I21C[][] { new I21C[] { new I21C() } } } } };
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135 }
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136 }
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137
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138 // Location for the generated class files
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139 public static final String PATH = System.getProperty("test.classes", ".") + java.io.File.separator;
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140
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141 /*
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142 * With 'good == false' this helper method creates the following classes
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143 * (using the nested 'Helper' class and the nested interfaces 'I1' and 'I2').
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144 * For brevity I omit the enclosing class 'TestMeetIncompatibleInterfaceArrays' in the
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145 * following examples:
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146 *
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147 * public class MeetIncompatibleInterfaceArrays0ASM {
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148 * public static I1 run() {
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149 * return Helper.createI2Array0(); // returns I2
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150 * }
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151 * public static void test() {
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152 * I1 i1 = run();
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153 * System.out.println(i1.getName());
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154 * }
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155 * }
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156 * public class MeetIncompatibleInterfaceArrays1ASM {
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157 * public static I1[] run() {
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158 * return Helper.createI2Array1(); // returns I2[]
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159 * }
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160 * public static void test() {
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161 * I1[] i1 = run();
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162 * System.out.println(i1[0].getName());
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163 * }
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164 * }
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165 * ...
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166 * // MeetIncompatibleInterfaceArrays4ASM is special because it creates
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167 * // an illegal class which will be rejected by the verifier.
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168 * public class MeetIncompatibleInterfaceArrays4ASM {
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169 * public static I1[][][][] run() {
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170 * return Helper.createI2Array3(); // returns I1[][][] which gives a verifier error because return expects I1[][][][]
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171 * }
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172 * public static void test() {
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173 * I1[][][][][] i1 = run();
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174 * System.out.println(i1[0][0][0][0][0].getName());
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175 * }
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176 * ...
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177 * public class MeetIncompatibleInterfaceArrays5ASM {
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178 * public static I1[][][][][] run() {
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179 * return Helper.createI2Array5(); // returns I2[][][][][]
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180 * }
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181 * public static void test() {
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182 * I1[][][][][] i1 = run();
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183 * System.out.println(i1[0][0][0][0][0].getName());
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184 * }
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185 * }
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186 *
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187 * Notice that this is not legal Java code. We would have to use a cast in "run()" to make it legal:
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188 *
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189 * public static I1[] run() {
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190 * return (I1[])Helper.createI2Array1(); // returns I2[]
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191 * }
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192 *
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193 * But in pure bytecode, the "run()" methods are perfectly legal:
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194 *
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195 * public static I1[] run();
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196 * Code:
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197 * 0: invokestatic #16 // Method Helper.createI2Array1:()[LI2;
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198 * 3: areturn
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199 *
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200 * The "test()" method calls the "getName()" function from I1 on the objects returned by "run()".
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201 * This will epectedly fail with an "IncompatibleClassChangeError" because the objects returned
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202 * by "run()" (and by createI2Array()) are actually of type "I2C" and only implement "I2" but not "I1".
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203 *
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204 *
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205 * With 'good == true' this helper method will create the following classes:
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206 *
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207 * public class MeetIncompatibleInterfaceArraysGood0ASM {
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208 * public static I1 run() {
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209 * return Helper.createI21Array0(); // returns I2
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210 * }
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211 * public static void test() {
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212 * I1 i1 = run();
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213 * System.out.println(i1.getName());
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214 * }
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215 * }
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216 *
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217 * Calling "test()" on these objects will succeed and output "I2 and I1" because now the "run()"
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218 * method calls "createI21Array()" which actually return an object (or an array of objects) of
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219 * type "I21C" which implements both "I2" and "I1".
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220 *
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221 * Notice that at the bytecode level, the code for the "run()" and "test()" methods in
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222 * "MeetIncompatibleInterfaceArraysASM" and "MeetIncompatibleInterfaceArraysGoodASM" look exactly
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223 * the same. I.e. the verifier has no chance to verify if the I2 object returned by "createI1Array()"
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224 * or "createI21Array()" implements "I1" or not. That's actually the reason why both versions of
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225 * generated classes are legal from a verifier point of view.
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226 *
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227 */
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228 static void generateTestClass(int dim, boolean good) throws Exception {
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229 String baseClassName = "MeetIncompatibleInterfaceArrays";
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230 if (good)
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231 baseClassName += "Good";
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232 String createName = "createI2" + (good ? "1" : "") + "Array";
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233 String a = "";
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234 for (int i = 0; i < dim; i++)
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235 a += "[";
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236 ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_FRAMES);
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237 cw.visit(V1_8, ACC_PUBLIC, baseClassName + dim + "ASM", null, "java/lang/Object", null);
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238 MethodVisitor constr = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
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239 constr.visitCode();
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240 constr.visitVarInsn(ALOAD, 0);
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241 constr.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false);
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242 constr.visitInsn(RETURN);
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243 constr.visitMaxs(0, 0);
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244 constr.visitEnd();
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245 MethodVisitor run = cw.visitMethod(ACC_PUBLIC | ACC_STATIC, "run",
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246 "()" + a + "LTestMeetIncompatibleInterfaceArrays$I1;", null, null);
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247 run.visitCode();
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248 if (dim == 4) {
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249 run.visitMethodInsn(INVOKESTATIC, "TestMeetIncompatibleInterfaceArrays$Helper", createName + 3,
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250 "()" + "[[[" + "LTestMeetIncompatibleInterfaceArrays$I2;", false);
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251 } else {
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252 run.visitMethodInsn(INVOKESTATIC, "TestMeetIncompatibleInterfaceArrays$Helper", createName + dim,
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253 "()" + a + "LTestMeetIncompatibleInterfaceArrays$I2;", false);
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254 }
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255 run.visitInsn(ARETURN);
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256 run.visitMaxs(0, 0);
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257 run.visitEnd();
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258 MethodVisitor test = cw.visitMethod(ACC_PUBLIC | ACC_STATIC, "test", "()V", null, null);
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259 test.visitCode();
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260 test.visitMethodInsn(INVOKESTATIC, baseClassName + dim + "ASM", "run",
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261 "()" + a + "LTestMeetIncompatibleInterfaceArrays$I1;", false);
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262 test.visitVarInsn(ASTORE, 0);
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263 if (dim > 0) {
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264 test.visitVarInsn(ALOAD, 0);
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265 for (int i = 1; i <= dim; i++) {
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266 test.visitInsn(ICONST_0);
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267 test.visitInsn(AALOAD);
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268 }
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269 test.visitVarInsn(ASTORE, 1);
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270 }
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271 test.visitFieldInsn(GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;");
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272 test.visitVarInsn(ALOAD, dim > 0 ? 1 : 0);
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273 test.visitMethodInsn(INVOKEINTERFACE, "TestMeetIncompatibleInterfaceArrays$I1", "getName",
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274 "()Ljava/lang/String;", true);
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275 test.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "println", "(Ljava/lang/Object;)V", false);
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276 test.visitInsn(RETURN);
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277 test.visitMaxs(0, 0);
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278 test.visitEnd();
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279
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280 // Get the bytes of the class..
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281 byte[] b = cw.toByteArray();
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282 // ..and write them into a class file (for debugging)
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283 FileOutputStream fos = new FileOutputStream(PATH + baseClassName + dim + "ASM.class");
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284 fos.write(b);
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285 fos.close();
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286
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287 }
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288
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289 public static String[][] tier = { { "interpreted", "C2 (tier 4) without inlining", "C2 (tier4) without inlining" },
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290 { "interpreted", "C2 (tier 4) with inlining", "C2 (tier4) with inlining" },
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291 { "interpreted", "C1 (tier 3) with inlining", "C2 (tier4) with inlining" } };
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292
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293 public static void main(String[] args) throws Exception {
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294 final int pass = Integer.parseInt(args.length > 0 ? args[0] : "0");
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295
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296 // Load and initialize some classes required for compilation
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297 Class.forName("TestMeetIncompatibleInterfaceArrays$I1");
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298 Class.forName("TestMeetIncompatibleInterfaceArrays$I2");
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299 Class.forName("TestMeetIncompatibleInterfaceArrays$Helper");
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300
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301 for (int g = 0; g < 2; g++) {
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302 String baseClassName = "MeetIncompatibleInterfaceArrays";
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303 boolean good = (g == 0) ? false : true;
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304 if (good)
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305 baseClassName += "Good";
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306 for (int i = 0; i < 6; i++) {
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307 System.out.println();
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308 System.out.println("Creating " + baseClassName + i + "ASM.class");
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309 System.out.println("========================================" + "=" + "=========");
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310 // Create the "MeetIncompatibleInterfaceArrays<i>ASM" class
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311 generateTestClass(i, good);
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312 Class<?> c = null;
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313 try {
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314 c = Class.forName(baseClassName + i + "ASM");
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315 } catch (VerifyError ve) {
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316 if (i == 4) {
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317 System.out.println("OK - must be (" + ve.getMessage() + ").");
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318 } else {
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319 throw ve;
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320 }
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321 continue;
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322 }
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323 // Call MeetIncompatibleInterfaceArrays<i>ASM.test()
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324 Method m = c.getMethod("test");
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325 Method r = c.getMethod("run");
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326 for (int j = 0; j < 3; j++) {
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327 System.out.println((j + 1) + ". invokation of " + baseClassName + i + "ASM.test() [should be "
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328 + tier[pass][j] + "]");
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329 try {
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330 m.invoke(null);
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331 } catch (InvocationTargetException ite) {
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332 if (good) {
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333 throw ite;
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334 } else {
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335 if (ite.getCause() instanceof IncompatibleClassChangeError) {
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336 System.out.println(" OK - catched InvocationTargetException("
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337 + ite.getCause().getMessage() + ").");
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338 } else {
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339 throw ite;
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340 }
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341 }
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342 }
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343 }
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344 System.out.println("Method " + r + (WB.isMethodCompiled(r) ? " has" : " has not") + " been compiled.");
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345 if (!WB.isMethodCompiled(r)) {
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346 throw new Exception("Method " + r + " must be compiled!");
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347 }
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348 }
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349 }
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350 }
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351 }