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1 /* |
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2 * Copyright (c) 2017, 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 |
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26 * @bug 8174954 |
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27 * @library /test/lib |
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28 * @modules java.base/jdk.internal.org.objectweb.asm |
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29 * @compile -XDignore.symbol.file BSMCalledTwice.java |
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30 * @run main BSMCalledTwice |
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31 */ |
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32 |
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33 import java.io.File; |
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34 import java.io.FileOutputStream; |
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35 import java.util.*; |
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36 import static jdk.internal.org.objectweb.asm.Opcodes.*; |
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37 import jdk.internal.org.objectweb.asm.*; |
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38 import jdk.test.lib.process.ProcessTools; |
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39 import jdk.test.lib.process.OutputAnalyzer; |
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40 |
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41 // BSMCalledTwice generates a class file named "TestC.class" that contains |
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42 // bytecodes that represent the following program |
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43 // |
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44 // public class TestC { |
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45 // public static void main(java.lang.String[] arg) { |
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46 // for (int i=0; i < 2; i++) { |
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47 // try { |
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48 // String f = "friend"; |
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49 // |
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50 // // The "hello " + f in the following statement produces an |
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51 // // invokedynamic with a BSM of |
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52 // // StringConcatFactory.java/makeConcatWithConstants. |
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53 // // The ASM below erroneously puts 2 static arguments, "hello " |
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54 // // and "goodbye" on the stack for the BSM. Causing a exception to |
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55 // // be thrown when creatingthe CallSite object. |
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56 // System.out.println("hello " + f); <--------------- invokedynamic |
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57 // |
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58 // } catch (Error e) { |
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59 // System.out.println("Caught Error:"); |
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60 // System.out.println(e.getMessage()); |
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61 // e.printStackTrace(); |
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62 // } |
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63 // } |
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64 // } |
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65 // } |
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66 // |
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67 public class BSMCalledTwice implements Opcodes { |
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68 static final String classTestCName = "TestC"; |
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69 |
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70 public static int count_makeSite(String text) { |
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71 int count = 0; |
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72 String text_ptr = text; |
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73 while (text_ptr.indexOf("makeSite") != -1) { |
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74 text_ptr = text_ptr.substring(text_ptr.indexOf("makeSite") + 1); |
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75 count++; |
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76 } |
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77 return count; |
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78 } |
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79 |
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80 public static void main(String[] args) throws Exception { |
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81 ClassLoader cl = new ClassLoader() { |
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82 public Class<?> loadClass(String name) throws ClassNotFoundException { |
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83 if (findLoadedClass(name) != null) { |
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84 return findLoadedClass(name); |
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85 } |
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86 |
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87 if (classTestCName.equals(name)) { |
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88 byte[] classFile = null; |
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89 try { |
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90 classFile = dumpTestC(); |
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91 } catch (Exception e) { |
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92 } |
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93 return defineClass(classTestCName, classFile, 0, classFile.length); |
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94 } |
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95 return super.loadClass(name); |
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96 } |
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97 }; |
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98 |
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99 cl.loadClass(classTestCName); |
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100 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(true, "-cp", ".", classTestCName); |
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101 OutputAnalyzer output = new OutputAnalyzer(pb.start()); |
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102 String test_output = output.getOutput(); |
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103 if (test_output == null) { |
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104 throw new RuntimeException("Test failed, null test output"); |
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105 } |
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106 // "makeSite" is currently listed twice in the exception stacks for each |
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107 // failing call to the BootstrapMethod. So more that two calls means |
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108 // that the BootstrapMethod was called more than once. |
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109 int count = count_makeSite(test_output); |
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110 if (count < 1 || count > 2) { |
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111 throw new RuntimeException("Test failed, bad number of calls to BootstrapMethod"); |
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112 } |
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113 output.shouldHaveExitValue(0); |
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114 } |
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115 |
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116 public static byte[] dumpTestC () throws Exception { |
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117 ClassWriter cw = new ClassWriter(0); |
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118 FieldVisitor fv; |
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119 MethodVisitor mv; |
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120 AnnotationVisitor av0; |
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121 |
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122 cw.visit(53, ACC_PUBLIC + ACC_SUPER, classTestCName, null, "java/lang/Object", null); |
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123 |
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124 cw.visitInnerClass("java/lang/invoke/MethodHandles$Lookup", |
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125 "java/lang/invoke/MethodHandles", "Lookup", |
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126 ACC_PUBLIC + ACC_FINAL + ACC_STATIC); |
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127 |
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128 { |
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129 mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null); |
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130 mv.visitCode(); |
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131 mv.visitVarInsn(ALOAD, 0); |
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132 mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false); |
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133 mv.visitInsn(RETURN); |
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134 mv.visitMaxs(1, 1); |
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135 mv.visitEnd(); |
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136 } |
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137 { |
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138 mv = cw.visitMethod(ACC_PUBLIC + ACC_STATIC, "main", "([Ljava/lang/String;)V", null, null); |
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139 mv.visitCode(); |
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140 Label l0 = new Label(); |
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141 Label l1 = new Label(); |
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142 Label l2 = new Label(); |
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143 mv.visitTryCatchBlock(l0, l1, l2, "java/lang/Error"); |
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144 mv.visitInsn(ICONST_0); |
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145 mv.visitVarInsn(ISTORE, 1); |
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146 Label l3 = new Label(); |
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147 mv.visitLabel(l3); |
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148 mv.visitFrame(Opcodes.F_APPEND,1, new Object[] {Opcodes.INTEGER}, 0, null); |
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149 mv.visitVarInsn(ILOAD, 1); |
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150 mv.visitInsn(ICONST_2); |
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151 Label l4 = new Label(); |
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152 mv.visitJumpInsn(IF_ICMPGE, l4); |
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153 mv.visitLabel(l0); |
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154 mv.visitLdcInsn("friend"); |
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155 mv.visitVarInsn(ASTORE, 2); |
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156 mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;"); |
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157 mv.visitVarInsn(ALOAD, 2); |
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158 mv.visitInvokeDynamicInsn("makeConcatWithConstants", |
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159 "(Ljava/lang/String;)Ljava/lang/String;", |
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160 new Handle(Opcodes.H_INVOKESTATIC, |
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161 "java/lang/invoke/StringConcatFactory", |
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162 "makeConcatWithConstants", |
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163 "(Ljava/lang/invoke/MethodHandles$Lookup;Ljava/lang/String;Ljava/lang/invoke/MethodType;Ljava/lang/String;[Ljava/lang/Object;)Ljava/lang/invoke/CallSite;"), |
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164 new Object[]{"hello \u0001", "goodbye"}); |
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165 mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "println", "(Ljava/lang/String;)V", false); |
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166 mv.visitLabel(l1); |
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167 Label l5 = new Label(); |
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168 mv.visitJumpInsn(GOTO, l5); |
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169 mv.visitLabel(l2); |
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170 mv.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] {"java/lang/Error"}); |
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171 mv.visitVarInsn(ASTORE, 2); |
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172 mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;"); |
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173 mv.visitLdcInsn("Caught Error:"); |
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174 mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "println", "(Ljava/lang/String;)V", false); |
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175 mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;"); |
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176 mv.visitVarInsn(ALOAD, 2); |
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177 mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Error", "getMessage", "()Ljava/lang/String;", false); |
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178 mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "println", "(Ljava/lang/String;)V", false); |
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179 mv.visitVarInsn(ALOAD, 2); |
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180 mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Error", "printStackTrace", "()V", false); |
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181 mv.visitLabel(l5); |
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182 mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null); |
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183 mv.visitIincInsn(1, 1); |
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184 mv.visitJumpInsn(GOTO, l3); |
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185 mv.visitLabel(l4); |
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186 mv.visitFrame(Opcodes.F_CHOP,1, null, 0, null); |
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187 mv.visitInsn(RETURN); |
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188 mv.visitMaxs(2, 3); |
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189 mv.visitEnd(); |
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190 } |
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191 cw.visitEnd(); |
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192 |
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193 try(FileOutputStream fos = new FileOutputStream(new File("TestC.class"))) { |
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194 fos.write(cw.toByteArray()); |
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195 } |
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196 return cw.toByteArray(); |
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197 } |
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198 } |