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annotate test/compiler/jsr292/methodHandleExceptions/TestAMEnotNPE.java @ 12412:3c11430f62d8

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Re-enable G1 verification in gate
author Christos Kotselidis <christos.kotselidis@oracle.com>
date Mon, 14 Oct 2013 23:37:28 +0200
parents dc261f466b6d
children 9d15b81d5d1b
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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
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25 import java.lang.reflect.InvocationTargetException;
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26 import jdk.internal.org.objectweb.asm.ClassWriter;
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27 import jdk.internal.org.objectweb.asm.Handle;
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28 import jdk.internal.org.objectweb.asm.MethodVisitor;
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29 import jdk.internal.org.objectweb.asm.Opcodes;
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30
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31 /**
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32 * @test
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33 * @bug 8025260
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34 * @summary Ensure that AbstractMethodError is thrown, not NullPointerException, through MethodHandles::jump_from_method_handle code path
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35 *
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36 * @compile -XDignore.symbol.file ByteClassLoader.java I.java C.java TestAMEnotNPE.java
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37 * @run main/othervm TestAMEnotNPE
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38 */
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39
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40 public class TestAMEnotNPE implements Opcodes {
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41
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42 /**
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43 * The bytes for D, a NOT abstract class extending abstract class C
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44 * without supplying an implementation for abstract method m.
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45 * There is a default method in the interface I, but it should lose to
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46 * the abstract class.
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47
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48 class D extends C {
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49 D() { super(); }
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50 // does not define m
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51 }
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52
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53 * @return
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54 * @throws Exception
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55 */
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56 public static byte[] bytesForD() throws Exception {
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57
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58 ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_FRAMES|ClassWriter.COMPUTE_MAXS);
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59 MethodVisitor mv;
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60
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61 cw.visit(V1_8, ACC_PUBLIC + ACC_SUPER, "D", null, "C", null);
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62
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63 {
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64 mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
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65 mv.visitCode();
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66 mv.visitVarInsn(ALOAD, 0);
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67 mv.visitMethodInsn(INVOKESPECIAL, "C", "<init>", "()V");
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68 mv.visitInsn(RETURN);
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69 mv.visitMaxs(0, 0);
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70 mv.visitEnd();
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71 }
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72 cw.visitEnd();
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73
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74 return cw.toByteArray();
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75 }
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76
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77
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78 /**
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79 * The bytecodes for an invokeExact of a particular methodHandle, I.m, invoked on a D
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80
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81 class T {
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82 T() { super(); } // boring constructor
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83 int test() {
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84 MethodHandle mh = `I.m():int`;
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85 D d = new D();
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86 return mh.invokeExact(d); // Should explode here, AbstractMethodError
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87 }
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88 }
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89
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90 * @return
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91 * @throws Exception
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92 */
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93 public static byte[] bytesForT() throws Exception {
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94
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95 ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_FRAMES|ClassWriter.COMPUTE_MAXS);
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96 MethodVisitor mv;
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97
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98 cw.visit(V1_8, ACC_PUBLIC + ACC_SUPER, "T", null, "java/lang/Object", null);
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99 {
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100 mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
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101 mv.visitCode();
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102 mv.visitVarInsn(ALOAD, 0);
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103 mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V");
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104 mv.visitInsn(RETURN);
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105 mv.visitMaxs(0,0);
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106 mv.visitEnd();
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107 }
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108 {
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109 mv = cw.visitMethod(ACC_PUBLIC + ACC_STATIC, "test", "()I", null, null);
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110 mv.visitCode();
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111 mv.visitLdcInsn(new Handle(Opcodes.H_INVOKEINTERFACE, "I", "m", "()I"));
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112 mv.visitTypeInsn(NEW, "D");
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113 mv.visitInsn(DUP);
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114 mv.visitMethodInsn(INVOKESPECIAL, "D", "<init>", "()V");
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115 mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/invoke/MethodHandle", "invokeExact", "(LI;)I");
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116 mv.visitInsn(IRETURN);
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117 mv.visitMaxs(0,0);
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118 mv.visitEnd();
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119 }
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120 cw.visitEnd();
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121 return cw.toByteArray();
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122 }
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123
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124 public static void main(String args[] ) throws Throwable {
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125 ByteClassLoader bcl = new ByteClassLoader();
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126 Class<?> d = bcl.loadBytes("D", bytesForD());
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127 Class<?> t = bcl.loadBytes("T", bytesForT());
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
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128 try {
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
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129 Object result = t.getMethod("test").invoke(null);
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
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130 System.out.println("Expected AbstractMethodError wrapped in InvocationTargetException, saw no exception");
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
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131 throw new Error("Missing expected exception");
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
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132 } catch (InvocationTargetException e) {
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
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133 Throwable th = e.getCause();
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
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134 if (th instanceof AbstractMethodError) {
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
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135 th.printStackTrace(System.out);
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
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136 System.out.println("PASS, saw expected exception (AbstractMethodError, wrapped in InvocationTargetException).");
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
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137 } else {
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
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138 System.out.println("Expected AbstractMethodError wrapped in InvocationTargetException, saw " + th);
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
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139 throw th;
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140 }
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141 }
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142 }
dc261f466b6d 8025260: Methodhandles/JSR292: NullPointerException (NPE) thrown instead of AbstractMethodError (AME)
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143 }