6605
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1 /*
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2 * Copyright (c) 2012, 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 /*
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26 * @test Test7116786
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27 * @summary verify that VerifyError messages are as expected
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28 * @library testcases.jar
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29 * @run main/othervm -Xverify:all Test7116786
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30 */
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31
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32
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33 /**
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34 * This class contains information regarding when a VerifyError is thrown
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35 * in the verifier. Most of the data is informational-only, and can be
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36 * used to track down where and why VerifyErrors are thrown. As such it
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37 * is possible the information may go out-of-date.
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38 *
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39 * The only fields used for the purpose of testing is the 'caseName' and
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40 * the 'message'. The 'caseName' corresponds to a classfile which exhibits
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41 * the VerifyError, and the 'message' is a regular expression which we expect
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42 * to match the verify error message. If the 'message' doesn't match what
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43 * we expect, it warrents investigation to see if we are still triggering
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44 * the VerifyError that we expect. It could simply just be that the message
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45 * changed, which is fine.
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46 *
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47 * Some cases are not testable, either because the code is probably unreachable
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48 * or the test classfile would be too onerous to create. These cases are
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49 * marked with 'testable' == false, and the test runner will skip them.
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50 */
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51 class Case {
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52 private String caseName; // Name of the case
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53 private String file; // Source file where VerifyError is thrown
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54 private String location; // enclosing function or switch case
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55 private String description; // What causes this VerifyError
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56 private String message; // The VerifyError message used.
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57
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58 private boolean testable; // Whether this case is testable or not.
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59
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60 public Case(String caseName, String file, boolean testable,
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61 String location, String description, String message) {
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62 this.caseName = caseName;
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63 this.file = file;
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64 this.testable = testable;
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65 this.location = location;
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66 this.description = description;
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67 this.message = message;
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68 }
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69
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70 String getCaseName() { return this.caseName; }
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71 String getFile() { return this.file; }
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72 String getLocation() { return this.location; }
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73 String getDescription() { return this.description; }
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74 String getMessage() { return this.message; }
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75
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76 boolean isTestable() { return this.testable; }
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77 }
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78
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79 /**
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80 * These are the locations in the source code where VerifyErrors are thrown
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81 * as of today, 2012/07/18. These may change as the verification code is
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82 * modified, which is ok. This test is trying to provide coverage for all
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83 * VerifyErrors (just to make sure there are no crashes) and it's probably
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84 * not necessary to update it every time the VM changes.
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85 */
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86 class VerifyErrorCases {
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87 public static final Case[] cases = {
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88
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89 new Case("case00", "stackMapFrame.cpp", true, "pop_stack_ex",
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90 "stack underflow",
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91 "Operand stack underflow"),
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92
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93 new Case("case01", "stackMapFrame.cpp", true, "pop_stack_ex",
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94 "stack pop not assignable to expected",
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95 "Bad type on operand stack"),
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96
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97 new Case("case02", "stackMapFrame.cpp", true, "get_local",
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98 "local index out-of-bounds",
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99 "Local variable table overflow"),
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100
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101 new Case("case03", "stackMapFrame.cpp", true, "get_local",
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102 "local not assignable to expected",
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103 "Bad local variable type"),
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104
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105 new Case("case04", "stackMapFrame.cpp", true, "get_local_2",
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106 "local index out-of-bounds [type2]",
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107 "get long/double overflows locals"),
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108
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109 new Case("case05", "stackMapFrame.cpp", true, "get_local_2",
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110 "local not assignabled to expected [type2]",
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111 "Bad local variable type"),
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112
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113 /* Unreachable: Can't split long/double on stack */
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114 new Case("case06", "stackMapFrame.cpp", false, "get_local_2",
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115 "local second-word not assignabled to expected",
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116 "Bad local variable type"),
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117
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118 new Case("case07", "stackMapFrame.cpp", true, "set_local",
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119 "local index out-of-bounds",
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120 "Local variable table overflow"),
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121
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122 new Case("case08", "stackMapFrame.cpp", true, "set_local_2",
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123 "local index out-of-bounds [type2]",
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124 "Local variable table overflow"),
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125
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126 new Case("case09", "stackMapFrame.hpp", true, "push_stack",
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127 "stack overflow",
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128 "Operand stack overflow"),
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129
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130 new Case("case10", "stackMapFrame.hpp", true, "push_stack_2",
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131 "stack overflow [type2]",
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132 "Operand stack overflow"),
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133
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134 new Case("case11", "stackMapFrame.hpp", true, "pop_stack",
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135 "stack underflow",
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136 "Operand stack underflow"),
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137
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138 new Case("case12", "stackMapTable.cpp", true, "StackMapTable ctor",
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139 "stackmap offset beyond code size",
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140 "StackMapTable error: bad offset"),
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141
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142 new Case("case13", "stackMapTable.cpp", true, "match_stackmap",
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143 "no stackmap frame at expected location",
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144 "Expecting a stackmap frame at branch target "),
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145
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146 new Case("case14", "stackMapTable.cpp", true, "check_jump_target",
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147 "no stackmap frame at jump location or bad jump",
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148 "Inconsistent stackmap frames at branch target "),
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149
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150 new Case("case15", "stackMapTable.cpp", true, "check_new_object",
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151 "backward jump with uninit",
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152 "Uninitialized object exists on backward branch "),
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153
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154 /* Unreachable: wide instructions verified during bytecode analysis */
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155 new Case("case16", "verifier.cpp", false, "loop header",
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156 "bad op in wide instruction",
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157 "Bad wide instruction"),
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158
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159 new Case("case17", "verifier.cpp", true, "case iaload",
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160 "TOS not X array",
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161 "Bad type on operand stack in iaload"),
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162
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163 new Case("case18", "verifier.cpp", true, "case baload",
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164 "TOS not X array",
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165 "Bad type on operand stack in baload"),
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166
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167 new Case("case19", "verifier.cpp", true, "case caload",
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168 "TOS not X array",
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169 "Bad type on operand stack in caload"),
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170
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171 new Case("case20", "verifier.cpp", true, "case saload",
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172 "TOS not X array",
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173 "Bad type on operand stack in saload"),
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174
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175 new Case("case21", "verifier.cpp", true, "case laload",
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176 "TOS not X array",
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177 "Bad type on operand stack in laload"),
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178
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179 new Case("case22", "verifier.cpp", true, "case faload",
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180 "TOS not X array",
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181 "Bad type on operand stack in faload"),
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182
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183 new Case("case23", "verifier.cpp", true, "case daload",
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184 "TOS not X array",
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185 "Bad type on operand stack in daload"),
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186
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187 new Case("case24", "verifier.cpp", true, "case aaload",
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188 "TOS not X array",
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189 "Bad type on operand stack in aaload"),
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190
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191 new Case("case25", "verifier.cpp", true, "case iastore",
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192 "TOS not int array",
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193 "Bad type on operand stack in iastore"),
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194
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195 new Case("case26", "verifier.cpp", true, "case bastore",
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196 "TOS not byte array",
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197 "Bad type on operand stack in bastore"),
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198
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199 new Case("case27", "verifier.cpp", true, "case castore",
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200 "TOS not char array",
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201 "Bad type on operand stack in castore"),
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202
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203 new Case("case28", "verifier.cpp", true, "case sastore",
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204 "TOS not short array",
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205 "Bad type on operand stack in sastore"),
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206
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207 new Case("case29", "verifier.cpp", true, "case lastore",
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208 "TOS not long array",
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209 "Bad type on operand stack in lastore"),
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210
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211 new Case("case30", "verifier.cpp", true, "case fastore",
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212 "TOS not float array",
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213 "Bad type on operand stack in fastore"),
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214
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215 new Case("case31", "verifier.cpp", true, "case dastore",
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216 "TOS not double array",
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217 "Bad type on operand stack in dastore"),
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218
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219 new Case("case32", "verifier.cpp", true, "case aastore",
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220 "TOS not object array",
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221 "Bad type on operand stack in aastore"),
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222
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223 /* Unreachable: In order to hit this case, we would need a
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224 * category2_1st at TOS which is not possible. */
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225 new Case("case33", "verifier.cpp", false, "case pop2",
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226 "TOS is category2_1st (would split)",
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227 "Bad type on operand stack in pop2"),
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228
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229 /* Unreachable: In order to hit this case, we would need a
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230 * category2_1st at stack depth 2 with category_1 on TOS which is not
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231 * possible. */
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232 new Case("case34", "verifier.cpp", false, "case dup_x2",
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233 "TOS-1 is category2_1st (would split)",
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234 "Bad type on operand stack in dup_x2"),
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235
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236 /* Unreachable: In order to hit this case, we would need a
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237 * category2_1st at TOS which is not possible. */
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238 new Case("case35", "verifier.cpp", false, "case dup2",
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239 "TOS-1 is category2_1st (would split)",
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240 "Bad type on operand stack in dup2"),
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241
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242 /* Unreachable: In order to hit this case, we would need a
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243 * category2_1st at TOS which is not possible. */
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244 new Case("case36", "verifier.cpp", false, "case dup2_x1",
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245 "TOS-1 is category2_1st (would split)",
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246 "Bad type on operand stack in dup2_x1"),
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247
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248 /* Unreachable: In order to hit this case, we would need a
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249 * category2_1st at TOS which is not possible. */
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250 new Case("case37", "verifier.cpp", false, "case dup2_x2",
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251 "TOS-1 is category2_1st (would split)",
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252 "Bad type on operand stack in dup2_x2"),
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253
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254 /* Unreachable: In order to hit this case, we would need a
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255 * category2_1st at stack depth 3 with either 2 category_1 or 1
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256 * category_2 on TOS, which is not possible. */
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257 new Case("case38", "verifier.cpp", false, "case dup2_x2",
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258 "TOS-3 is category2_1st (would split)",
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259 "Bad type on operand stack in dup2_x2"),
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260
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261 new Case("case39", "verifier.cpp", true, "case return",
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262 "return type of method is not void",
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263 "Method expects a return value"),
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264
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265 new Case("case40", "verifier.cpp", true, "case return",
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266 "return with uninitialized this ",
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267 "Constructor must call super() or this() before return"),
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268
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269 new Case("case41", "verifier.cpp", true, "case new",
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270 "cp index not a class type",
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271 "Illegal new instruction"),
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272
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273 new Case("case42", "verifier.cpp", true, "case arraylength",
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274 "TOS is not an array",
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275 "Bad type on operand stack in arraylength"),
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276
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277 new Case("case43", "verifier.cpp", true, "case multianewarray",
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278 "CP index does not refer to array type",
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279 "Illegal constant pool index in multianewarray instruction"),
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280
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281 new Case("case44", "verifier.cpp", true, "case multianewarray",
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282 "Bad dimension (<1) or does not match CP signature",
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283 "Illegal dimension in multianewarray instruction: "),
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284
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285 new Case("case45", "verifier.cpp", true, "case default",
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286 "Unrecognized bytecode",
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287 "Bad instruction: "),
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288
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289 new Case("case46", "verifier.cpp", true, "loop end",
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290 "control flow falls off method",
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291 "Control flow falls through code end"),
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292
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293 new Case("case47", "verifier.cpp", true, "generate_code_data",
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294 "illegal bytecode via RawBytecodeStream (breakpoint)",
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295 "Bad instruction"),
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296
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297 new Case("case48", "verifier.cpp", true, "generate_code_data",
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298 "illegal bytecode via RawBytecodeStream (other illegal)",
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299 "Bad instruction"),
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300
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301 new Case("case49", "verifier.cpp", true,
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302 "verify_exception_handler_table",
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303 "catch_type is not throwable",
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304 "Catch type is not a subclass of Throwable in " +
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305 "exception handler "),
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306
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307 new Case("case50", "verifier.cpp", true, "verify_stackmap_table",
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308 "missing a stack map frame @ target location (mid table)",
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309 "Expecting a stack map frame"),
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310
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311 new Case("case51", "verifier.cpp", true, "verify_stackmap_table",
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312 "stack map does not match?",
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313 "Instruction type does not match stack map"),
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314
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315 new Case("case52", "verifier.cpp", true, "verify_stackmap_table",
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316 "missing a stack map frame @ target location (end of table)",
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317 "Expecting a stack map frame"),
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318
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319 new Case("case53", "verifier.cpp", true,
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320 "verify_exception_handler_targets",
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321 "stackmap mismatch at exception handler",
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322 "Stack map does not match the one at exception handler "),
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323
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324 new Case("case54", "verifier.cpp", true, "verify_cp_index",
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325 "constant pool index is out-of-bounds",
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326 "Illegal constant pool index "),
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327
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328 new Case("case55", "verifier.cpp", true, "verify_cp_type",
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329 "constant pool entry is not expected type",
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330 "Illegal type at constant pool entry "),
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331
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332 new Case("case56", "verifier.cpp", true, "verify_cp_class_type",
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333 "constant pool entry is not an object type",
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334 "Illegal type at constant pool entry "),
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335
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336 /* Unreachable: verify_cp_type gates this case */
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337 new Case("case57", "verifier.cpp", false, "verify_ldc",
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338 "invalid constant pool index in ldc",
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339 "Invalid index in ldc"),
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340
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341 new Case("case58", "verifier.cpp", true, "verify_switch",
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342 "bad switch padding",
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343 "Nonzero padding byte in lookswitch or tableswitch"),
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344
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345 new Case("case59", "verifier.cpp", true, "verify_switch",
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346 "tableswitch low is greater than high",
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347 "low must be less than or equal to high in tableswitch"),
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348
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349 /* Unreachable on 64-bit? Only way to get here is to overflow
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350 * the 'keys' variable which can't happen on 64-bit since we're dealing
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351 * with 32-bit values. Perhaps reachable on 32-bit but the
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352 * triggering class would be quite large */
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353 new Case("case60", "verifier.cpp", false, "verify_switch",
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354 "high - low + 1 < 0 (overflow?)",
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355 "too many keys in tableswitch"),
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356
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357 /* Would have to create a 16G classfile to trip this. Possible but
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358 * not reasonable to do in a test. */
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359 new Case("case61", "verifier.cpp", false, "verify_switch",
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360 "lookupswitch keys < 0",
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361 "number of keys in lookupswitch less than 0"),
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362
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363 new Case("case62", "verifier.cpp", true, "verify_switch",
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364 "lookupswitch keys out-of-order",
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365 "Bad lookupswitch instruction"),
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366
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367 /* Unreachable: Class file parser verifies Fieldref contents */
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368 new Case("case63", "verifier.cpp", false, "verify_field_instructions",
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369 "referenced class is not an CP object",
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370 "Expecting reference to class in class "),
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371
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372 new Case("case64", "verifier.cpp", true, "verify_field_instructions",
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373 "TOS not assignable to field type in putfield",
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374 "Bad type on operand stack in putfield"),
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375
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376 new Case("case65", "verifier.cpp", true, "verify_field_instructions",
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377 "TOS not assignable to class when accessing protected field",
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378 "Bad access to protected data in getfield"),
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379
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380 new Case("case66", "verifier.cpp", true, "verify_invoke_init",
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381 "Uninit_this is not of the current type or it's supertype",
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382 "Bad <init> method call"),
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383
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384 /* Unreachable: Stack map parsing ensures valid type and new
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385 * instructions have a valid BCI. */
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386 new Case("case67", "verifier.cpp", false, "verify_invoke_init",
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387 "Uninit type with bad new instruction index",
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388 "Expecting new instruction"),
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389
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390 new Case("case68", "verifier.cpp", true, "verify_invoke_init",
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391 "calling other class's <init> method",
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392 "Call to wrong <init> method"),
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393
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394 new Case("case69", "verifier.cpp", true, "verify_invoke_init",
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395 "Calling protected <init> and type unassignable from current",
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396 "Bad access to protected <init> method"),
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397
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398 new Case("case70", "verifier.cpp", true, "verify_invoke_init",
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399 "TOS is not an uninitialized (or Uninit_this) type",
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400 "Bad operand type when invoking <init>"),
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401
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402 new Case("case71", "verifier.cpp", true, "verify_invoke_instructions",
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403 "Arg count in instruction doesn't match signature",
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404 "Inconsistent args count operand in invokeinterface"),
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405
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406 new Case("case72", "verifier.cpp", true, "verify_invoke_instructions",
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407 "Non-zero pad in invokeinterface",
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408 "Fourth operand byte of invokeinterface must be zero"),
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409
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410 new Case("case73", "verifier.cpp", true, "verify_invoke_instructions",
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411 "Non-zero pad in invokedynamic",
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412 "Third and fourth operand bytes of " +
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413 "invokedynamic must be zero"),
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414
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415 new Case("case74", "verifier.cpp", true, "verify_invoke_instructions",
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416 "Non-invokespecial trying to invoke a '<' method",
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417 "Illegal call to internal method"),
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418
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419 new Case("case75", "verifier.cpp", true, "verify_invoke_instructions",
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420 "invokespecial and current unassignable from referenced type",
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421 "Bad invokespecial instruction: current class isn't " +
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422 "assignable to reference class."),
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423
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424 new Case("case76", "verifier.cpp", true, "verify_invoke_instructions",
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425 "TOS not assignable to current when calling protected method",
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426 "Bad access to protected data in invokevirtual"),
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427
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428 /* Unreachable: class file parser enforces void signature */
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429 new Case("case77", "verifier.cpp", false, "verify_invoke_instructions",
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430 "<init> method is not void return",
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431 "Return type must be void in <init> method"),
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432
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433 new Case("case78", "verifier.cpp", true, "get_newarray_type",
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434 "newarray type invalid",
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435 "Illegal newarray instruction"),
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436
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437 new Case("case79", "verifier.cpp", true, "verify_return_value",
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438 "void return from method which has a return value",
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439 "Method expects a return value"),
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440
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441 new Case("case80", "verifier.cpp", true, "verify_return_value",
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442 "TOS type does not match signature",
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443 "Bad return type"),
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444
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445 new Case("case81", "verifier.cpp", true, "verify_stackmap_table",
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446 "stack map does not match (flags)",
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447 "Instruction type does not match stack map")
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448 };
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449 }
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450
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451 public class Test7116786 {
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452 public static void main(String argv[]) throws Exception {
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453 for (Case c : VerifyErrorCases.cases) {
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454 System.out.println("******** " + c.getCaseName() + " ********");
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455 if (c.isTestable()) {
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456 try {
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457 ClassLoader cl = Test7116786.class.getClassLoader();
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458 Class<?> cls = Class.forName(c.getCaseName(), true, cl);
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459 throw new RuntimeException(
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460 "++ FAIL: No verify error encountered");
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461 } catch (VerifyError ve) {
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462 String message = c.getMessage();
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463 String veMessage = ve.getMessage();
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464 System.out.print(veMessage);
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465 if (!veMessage.startsWith(message)) {
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466 // We're not seeing the message we expect. Could be
|
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467 // that we've gotten the wrong VerifyError case, or
|
|
468 // maybe the message changed.
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|
469 System.out.println("++ FAIL? " +
|
|
470 "Message does not match what was expected: " +
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471 message);
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|
472 continue;
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|
473 }
|
|
474 if (!veMessage.contains("Exception Details:") &&
|
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475 !veMessage.contains("Reason:")) {
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476 System.out.println("++ FAIL: No details found");
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477 throw new RuntimeException("FAIL: No details found");
|
|
478 }
|
|
479 System.out.println("++ PASS");
|
|
480 }
|
|
481 } else {
|
|
482 System.out.println("++ SKIPPED");
|
|
483 }
|
|
484 }
|
|
485 }
|
|
486 }
|