0
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1 /*
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2 * Copyright 1997-2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 #include "incls/_precompiled.incl"
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26 #include "incls/_reflection.cpp.incl"
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27
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28 #define JAVA_1_5_VERSION 49
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29
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30 static void trace_class_resolution(klassOop to_class) {
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31 ResourceMark rm;
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32 int line_number = -1;
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33 const char * source_file = NULL;
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34 klassOop caller = NULL;
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35 JavaThread* jthread = JavaThread::current();
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36 if (jthread->has_last_Java_frame()) {
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37 vframeStream vfst(jthread);
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38 // skip over any frames belonging to java.lang.Class
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39 while (!vfst.at_end() &&
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40 instanceKlass::cast(vfst.method()->method_holder())->name() == vmSymbols::java_lang_Class()) {
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41 vfst.next();
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42 }
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43 if (!vfst.at_end()) {
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44 // this frame is a likely suspect
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45 caller = vfst.method()->method_holder();
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46 line_number = vfst.method()->line_number_from_bci(vfst.bci());
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47 symbolOop s = instanceKlass::cast(vfst.method()->method_holder())->source_file_name();
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48 if (s != NULL) {
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49 source_file = s->as_C_string();
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50 }
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51 }
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52 }
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53 if (caller != NULL) {
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54 const char * from = Klass::cast(caller)->external_name();
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55 const char * to = Klass::cast(to_class)->external_name();
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56 // print in a single call to reduce interleaving between threads
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57 if (source_file != NULL) {
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58 tty->print("RESOLVE %s %s %s:%d (reflection)\n", from, to, source_file, line_number);
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59 } else {
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60 tty->print("RESOLVE %s %s (reflection)\n", from, to);
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61 }
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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 oop Reflection::box(jvalue* value, BasicType type, TRAPS) {
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67 if (type == T_VOID) {
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68 return NULL;
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69 }
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70 if (type == T_OBJECT || type == T_ARRAY) {
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71 // regular objects are not boxed
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72 return (oop) value->l;
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73 }
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74 oop result = java_lang_boxing_object::create(type, value, CHECK_NULL);
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75 if (result == NULL) {
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76 THROW_(vmSymbols::java_lang_IllegalArgumentException(), result);
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77 }
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78 return result;
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79 }
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80
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81
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82 BasicType Reflection::unbox_for_primitive(oop box, jvalue* value, TRAPS) {
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83 if (box == NULL) {
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84 THROW_(vmSymbols::java_lang_IllegalArgumentException(), T_ILLEGAL);
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85 }
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86 return java_lang_boxing_object::get_value(box, value);
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87 }
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88
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89 BasicType Reflection::unbox_for_regular_object(oop box, jvalue* value) {
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90 // Note: box is really the unboxed oop. It might even be a Short, etc.!
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91 value->l = (jobject) box;
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92 return T_OBJECT;
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93 }
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94
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95
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96 void Reflection::widen(jvalue* value, BasicType current_type, BasicType wide_type, TRAPS) {
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97 assert(wide_type != current_type, "widen should not be called with identical types");
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98 switch (wide_type) {
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99 case T_BOOLEAN:
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100 case T_BYTE:
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101 case T_CHAR:
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102 break; // fail
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103 case T_SHORT:
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104 switch (current_type) {
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105 case T_BYTE:
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106 value->s = (jshort) value->b;
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107 return;
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108 }
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109 break; // fail
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110 case T_INT:
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111 switch (current_type) {
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112 case T_BYTE:
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113 value->i = (jint) value->b;
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114 return;
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115 case T_CHAR:
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116 value->i = (jint) value->c;
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117 return;
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118 case T_SHORT:
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119 value->i = (jint) value->s;
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120 return;
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121 }
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122 break; // fail
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123 case T_LONG:
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124 switch (current_type) {
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125 case T_BYTE:
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126 value->j = (jlong) value->b;
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127 return;
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128 case T_CHAR:
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129 value->j = (jlong) value->c;
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130 return;
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131 case T_SHORT:
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132 value->j = (jlong) value->s;
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133 return;
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134 case T_INT:
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135 value->j = (jlong) value->i;
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136 return;
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137 }
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138 break; // fail
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139 case T_FLOAT:
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140 switch (current_type) {
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141 case T_BYTE:
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142 value->f = (jfloat) value->b;
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143 return;
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144 case T_CHAR:
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145 value->f = (jfloat) value->c;
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146 return;
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147 case T_SHORT:
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148 value->f = (jfloat) value->s;
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149 return;
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150 case T_INT:
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151 value->f = (jfloat) value->i;
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152 return;
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153 case T_LONG:
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154 value->f = (jfloat) value->j;
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155 return;
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156 }
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157 break; // fail
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158 case T_DOUBLE:
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159 switch (current_type) {
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160 case T_BYTE:
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161 value->d = (jdouble) value->b;
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162 return;
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163 case T_CHAR:
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164 value->d = (jdouble) value->c;
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165 return;
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166 case T_SHORT:
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167 value->d = (jdouble) value->s;
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168 return;
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169 case T_INT:
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170 value->d = (jdouble) value->i;
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171 return;
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172 case T_FLOAT:
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173 value->d = (jdouble) value->f;
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174 return;
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175 case T_LONG:
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176 value->d = (jdouble) value->j;
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177 return;
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178 }
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179 break; // fail
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180 default:
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181 break; // fail
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182 }
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183 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), "argument type mismatch");
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184 }
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185
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186
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187 BasicType Reflection::array_get(jvalue* value, arrayOop a, int index, TRAPS) {
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188 if (!a->is_within_bounds(index)) {
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189 THROW_(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), T_ILLEGAL);
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190 }
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191 if (a->is_objArray()) {
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192 value->l = (jobject) objArrayOop(a)->obj_at(index);
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193 return T_OBJECT;
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194 } else {
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195 assert(a->is_typeArray(), "just checking");
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196 BasicType type = typeArrayKlass::cast(a->klass())->element_type();
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197 switch (type) {
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198 case T_BOOLEAN:
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199 value->z = typeArrayOop(a)->bool_at(index);
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200 break;
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201 case T_CHAR:
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202 value->c = typeArrayOop(a)->char_at(index);
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203 break;
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204 case T_FLOAT:
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205 value->f = typeArrayOop(a)->float_at(index);
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206 break;
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207 case T_DOUBLE:
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208 value->d = typeArrayOop(a)->double_at(index);
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209 break;
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210 case T_BYTE:
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211 value->b = typeArrayOop(a)->byte_at(index);
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212 break;
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213 case T_SHORT:
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214 value->s = typeArrayOop(a)->short_at(index);
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215 break;
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216 case T_INT:
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217 value->i = typeArrayOop(a)->int_at(index);
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218 break;
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219 case T_LONG:
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220 value->j = typeArrayOop(a)->long_at(index);
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221 break;
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222 default:
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223 return T_ILLEGAL;
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224 }
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225 return type;
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226 }
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227 }
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228
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229
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230 void Reflection::array_set(jvalue* value, arrayOop a, int index, BasicType value_type, TRAPS) {
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231 if (!a->is_within_bounds(index)) {
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232 THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException());
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233 }
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234 if (a->is_objArray()) {
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235 if (value_type == T_OBJECT) {
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236 oop obj = (oop) value->l;
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237 if (obj != NULL) {
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238 klassOop element_klass = objArrayKlass::cast(a->klass())->element_klass();
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239 if (!obj->is_a(element_klass)) {
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240 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), "array element type mismatch");
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241 }
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242 }
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243 objArrayOop(a)->obj_at_put(index, obj);
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244 }
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245 } else {
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246 assert(a->is_typeArray(), "just checking");
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247 BasicType array_type = typeArrayKlass::cast(a->klass())->element_type();
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248 if (array_type != value_type) {
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249 // The widen operation can potentially throw an exception, but cannot block,
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250 // so typeArrayOop a is safe if the call succeeds.
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251 widen(value, value_type, array_type, CHECK);
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252 }
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253 switch (array_type) {
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254 case T_BOOLEAN:
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255 typeArrayOop(a)->bool_at_put(index, value->z);
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256 break;
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257 case T_CHAR:
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258 typeArrayOop(a)->char_at_put(index, value->c);
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259 break;
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260 case T_FLOAT:
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261 typeArrayOop(a)->float_at_put(index, value->f);
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262 break;
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263 case T_DOUBLE:
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264 typeArrayOop(a)->double_at_put(index, value->d);
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265 break;
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266 case T_BYTE:
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267 typeArrayOop(a)->byte_at_put(index, value->b);
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268 break;
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269 case T_SHORT:
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270 typeArrayOop(a)->short_at_put(index, value->s);
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271 break;
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272 case T_INT:
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273 typeArrayOop(a)->int_at_put(index, value->i);
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274 break;
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275 case T_LONG:
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276 typeArrayOop(a)->long_at_put(index, value->j);
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277 break;
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278 default:
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279 THROW(vmSymbols::java_lang_IllegalArgumentException());
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280 }
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281 }
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282 }
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283
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284
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285 klassOop Reflection::basic_type_mirror_to_arrayklass(oop basic_type_mirror, TRAPS) {
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286 assert(java_lang_Class::is_primitive(basic_type_mirror), "just checking");
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287 BasicType type = java_lang_Class::primitive_type(basic_type_mirror);
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288 if (type == T_VOID) {
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289 THROW_0(vmSymbols::java_lang_IllegalArgumentException());
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290 } else {
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291 return Universe::typeArrayKlassObj(type);
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292 }
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293 }
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294
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295
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296 oop Reflection:: basic_type_arrayklass_to_mirror(klassOop basic_type_arrayklass, TRAPS) {
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297 BasicType type = typeArrayKlass::cast(basic_type_arrayklass)->element_type();
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298 return Universe::java_mirror(type);
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299 }
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300
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301
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302 arrayOop Reflection::reflect_new_array(oop element_mirror, jint length, TRAPS) {
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303 if (element_mirror == NULL) {
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304 THROW_0(vmSymbols::java_lang_NullPointerException());
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305 }
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306 if (length < 0) {
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307 THROW_0(vmSymbols::java_lang_NegativeArraySizeException());
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308 }
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309 if (java_lang_Class::is_primitive(element_mirror)) {
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310 klassOop tak = basic_type_mirror_to_arrayklass(element_mirror, CHECK_NULL);
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311 return typeArrayKlass::cast(tak)->allocate(length, THREAD);
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312 } else {
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313 klassOop k = java_lang_Class::as_klassOop(element_mirror);
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314 if (Klass::cast(k)->oop_is_array() && arrayKlass::cast(k)->dimension() >= MAX_DIM) {
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315 THROW_0(vmSymbols::java_lang_IllegalArgumentException());
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316 }
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317 return oopFactory::new_objArray(k, length, THREAD);
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318 }
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319 }
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320
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321
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322 arrayOop Reflection::reflect_new_multi_array(oop element_mirror, typeArrayOop dim_array, TRAPS) {
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323 assert(dim_array->is_typeArray(), "just checking");
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324 assert(typeArrayKlass::cast(dim_array->klass())->element_type() == T_INT, "just checking");
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325
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326 if (element_mirror == NULL) {
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327 THROW_0(vmSymbols::java_lang_NullPointerException());
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328 }
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329
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330 int len = dim_array->length();
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331 if (len <= 0 || len > MAX_DIM) {
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332 THROW_0(vmSymbols::java_lang_IllegalArgumentException());
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333 }
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334
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335 jint dimensions[MAX_DIM]; // C array copy of intArrayOop
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336 for (int i = 0; i < len; i++) {
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337 int d = dim_array->int_at(i);
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338 if (d < 0) {
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339 THROW_0(vmSymbols::java_lang_NegativeArraySizeException());
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340 }
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341 dimensions[i] = d;
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342 }
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343
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344 klassOop klass;
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345 int dim = len;
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346 if (java_lang_Class::is_primitive(element_mirror)) {
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347 klass = basic_type_mirror_to_arrayklass(element_mirror, CHECK_NULL);
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348 } else {
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349 klass = java_lang_Class::as_klassOop(element_mirror);
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350 if (Klass::cast(klass)->oop_is_array()) {
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351 int k_dim = arrayKlass::cast(klass)->dimension();
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352 if (k_dim + len > MAX_DIM) {
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353 THROW_0(vmSymbols::java_lang_IllegalArgumentException());
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354 }
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355 dim += k_dim;
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356 }
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357 }
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358 klass = Klass::cast(klass)->array_klass(dim, CHECK_NULL);
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359 oop obj = arrayKlass::cast(klass)->multi_allocate(len, dimensions, THREAD);
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360 assert(obj->is_array(), "just checking");
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361 return arrayOop(obj);
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362 }
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363
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364
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365 oop Reflection::array_component_type(oop mirror, TRAPS) {
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366 if (java_lang_Class::is_primitive(mirror)) {
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367 return NULL;
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368 }
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369
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370 klassOop klass = java_lang_Class::as_klassOop(mirror);
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371 if (!Klass::cast(klass)->oop_is_array()) {
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372 return NULL;
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373 }
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374
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375 oop result = arrayKlass::cast(klass)->component_mirror();
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376 #ifdef ASSERT
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377 oop result2 = NULL;
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378 if (arrayKlass::cast(klass)->dimension() == 1) {
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379 if (Klass::cast(klass)->oop_is_typeArray()) {
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380 result2 = basic_type_arrayklass_to_mirror(klass, CHECK_NULL);
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381 } else {
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382 result2 = Klass::cast(objArrayKlass::cast(klass)->element_klass())->java_mirror();
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383 }
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384 } else {
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385 klassOop lower_dim = arrayKlass::cast(klass)->lower_dimension();
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386 assert(Klass::cast(lower_dim)->oop_is_array(), "just checking");
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387 result2 = Klass::cast(lower_dim)->java_mirror();
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388 }
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389 assert(result == result2, "results must be consistent");
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390 #endif //ASSERT
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391 return result;
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392 }
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393
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394
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395 bool Reflection::reflect_check_access(klassOop field_class, AccessFlags acc, klassOop target_class, bool is_method_invoke, TRAPS) {
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396 // field_class : declaring class
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397 // acc : declared field access
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398 // target_class : for protected
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399
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400 // Check if field or method is accessible to client. Throw an
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401 // IllegalAccessException and return false if not.
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402
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403 // The "client" is the class associated with the nearest real frame
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404 // getCallerClass already skips Method.invoke frames, so pass 0 in
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405 // that case (same as classic).
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406 ResourceMark rm(THREAD);
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407 assert(THREAD->is_Java_thread(), "sanity check");
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408 klassOop client_class = ((JavaThread *)THREAD)->security_get_caller_class(is_method_invoke ? 0 : 1);
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409
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410 if (client_class != field_class) {
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411 if (!verify_class_access(client_class, field_class, false)
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412 || !verify_field_access(client_class,
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413 field_class,
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414 field_class,
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415 acc,
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416 false)) {
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417 THROW_(vmSymbols::java_lang_IllegalAccessException(), false);
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418 }
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419 }
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420
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421 // Additional test for protected members: JLS 6.6.2
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422
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423 if (acc.is_protected()) {
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424 if (target_class != client_class) {
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425 if (!is_same_class_package(client_class, field_class)) {
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426 if (!Klass::cast(target_class)->is_subclass_of(client_class)) {
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427 THROW_(vmSymbols::java_lang_IllegalAccessException(), false);
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428 }
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429 }
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430 }
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431 }
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432
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433 // Passed all tests
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434 return true;
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435 }
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436
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437
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438 bool Reflection::verify_class_access(klassOop current_class, klassOop new_class, bool classloader_only) {
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439 // Verify that current_class can access new_class. If the classloader_only
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440 // flag is set, we automatically allow any accesses in which current_class
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441 // doesn't have a classloader.
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442 if ((current_class == NULL) ||
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443 (current_class == new_class) ||
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444 (instanceKlass::cast(new_class)->is_public()) ||
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445 is_same_class_package(current_class, new_class)) {
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446 return true;
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447 }
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448 // New (1.4) reflection implementation. Allow all accesses from
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449 // sun/reflect/MagicAccessorImpl subclasses to succeed trivially.
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450 if ( JDK_Version::is_gte_jdk14x_version()
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451 && UseNewReflection
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452 && Klass::cast(current_class)->is_subclass_of(SystemDictionary::reflect_magic_klass())) {
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453 return true;
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454 }
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455
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456 return can_relax_access_check_for(current_class, new_class, classloader_only);
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457 }
|
|
458
|
|
459 bool Reflection::can_relax_access_check_for(
|
|
460 klassOop accessor, klassOop accessee, bool classloader_only) {
|
|
461 instanceKlass* accessor_ik = instanceKlass::cast(accessor);
|
|
462 instanceKlass* accessee_ik = instanceKlass::cast(accessee);
|
|
463 if (RelaxAccessControlCheck ||
|
|
464 (accessor_ik->major_version() < JAVA_1_5_VERSION &&
|
|
465 accessee_ik->major_version() < JAVA_1_5_VERSION)) {
|
|
466 return classloader_only &&
|
|
467 Verifier::relax_verify_for(accessor_ik->class_loader()) &&
|
|
468 accessor_ik->protection_domain() == accessee_ik->protection_domain() &&
|
|
469 accessor_ik->class_loader() == accessee_ik->class_loader();
|
|
470 } else {
|
|
471 return false;
|
|
472 }
|
|
473 }
|
|
474
|
|
475 bool Reflection::verify_field_access(klassOop current_class,
|
|
476 klassOop resolved_class,
|
|
477 klassOop field_class,
|
|
478 AccessFlags access,
|
|
479 bool classloader_only,
|
|
480 bool protected_restriction) {
|
|
481 // Verify that current_class can access a field of field_class, where that
|
|
482 // field's access bits are "access". We assume that we've already verified
|
|
483 // that current_class can access field_class.
|
|
484 //
|
|
485 // If the classloader_only flag is set, we automatically allow any accesses
|
|
486 // in which current_class doesn't have a classloader.
|
|
487 //
|
|
488 // "resolved_class" is the runtime type of "field_class". Sometimes we don't
|
|
489 // need this distinction (e.g. if all we have is the runtime type, or during
|
|
490 // class file parsing when we only care about the static type); in that case
|
|
491 // callers should ensure that resolved_class == field_class.
|
|
492 //
|
|
493 if ((current_class == NULL) ||
|
|
494 (current_class == field_class) ||
|
|
495 access.is_public()) {
|
|
496 return true;
|
|
497 }
|
|
498
|
|
499 if (access.is_protected()) {
|
|
500 if (!protected_restriction) {
|
|
501 // See if current_class is a subclass of field_class
|
|
502 if (Klass::cast(current_class)->is_subclass_of(field_class)) {
|
|
503 if (current_class == resolved_class ||
|
|
504 field_class == resolved_class ||
|
|
505 Klass::cast(current_class)->is_subclass_of(resolved_class) ||
|
|
506 Klass::cast(resolved_class)->is_subclass_of(current_class)) {
|
|
507 return true;
|
|
508 }
|
|
509 }
|
|
510 }
|
|
511 }
|
|
512
|
|
513 if (!access.is_private() && is_same_class_package(current_class, field_class)) {
|
|
514 return true;
|
|
515 }
|
|
516
|
|
517 // New (1.4) reflection implementation. Allow all accesses from
|
|
518 // sun/reflect/MagicAccessorImpl subclasses to succeed trivially.
|
|
519 if ( JDK_Version::is_gte_jdk14x_version()
|
|
520 && UseNewReflection
|
|
521 && Klass::cast(current_class)->is_subclass_of(SystemDictionary::reflect_magic_klass())) {
|
|
522 return true;
|
|
523 }
|
|
524
|
|
525 return can_relax_access_check_for(
|
|
526 current_class, field_class, classloader_only);
|
|
527 }
|
|
528
|
|
529
|
|
530 bool Reflection::is_same_class_package(klassOop class1, klassOop class2) {
|
|
531 return instanceKlass::cast(class1)->is_same_class_package(class2);
|
|
532 }
|
|
533
|
|
534
|
|
535 // Checks that the 'outer' klass has declared 'inner' as being an inner klass. If not,
|
|
536 // throw an incompatible class change exception
|
|
537 void Reflection::check_for_inner_class(instanceKlassHandle outer, instanceKlassHandle inner, TRAPS) {
|
|
538 const int inner_class_info_index = 0;
|
|
539 const int outer_class_info_index = 1;
|
|
540
|
|
541 typeArrayHandle icls (THREAD, outer->inner_classes());
|
|
542 constantPoolHandle cp (THREAD, outer->constants());
|
|
543 for(int i = 0; i < icls->length(); i += 4) {
|
|
544 int ioff = icls->ushort_at(i + inner_class_info_index);
|
|
545 int ooff = icls->ushort_at(i + outer_class_info_index);
|
|
546
|
|
547 if (ioff != 0 && ooff != 0) {
|
|
548 klassOop o = cp->klass_at(ooff, CHECK);
|
|
549 if (o == outer()) {
|
|
550 klassOop i = cp->klass_at(ioff, CHECK);
|
|
551 if (i == inner()) {
|
|
552 return;
|
|
553 }
|
|
554 }
|
|
555 }
|
|
556 }
|
|
557
|
|
558 // 'inner' not declared as an inner klass in outer
|
|
559 ResourceMark rm(THREAD);
|
|
560 Exceptions::fthrow(
|
|
561 THREAD_AND_LOCATION,
|
|
562 vmSymbolHandles::java_lang_IncompatibleClassChangeError(),
|
|
563 "%s and %s disagree on InnerClasses attribute",
|
|
564 outer->external_name(),
|
|
565 inner->external_name()
|
|
566 );
|
|
567 }
|
|
568
|
|
569 // Utility method converting a single SignatureStream element into java.lang.Class instance
|
|
570
|
|
571 oop get_mirror_from_signature(methodHandle method, SignatureStream* ss, TRAPS) {
|
|
572 switch (ss->type()) {
|
|
573 default:
|
|
574 assert(ss->type() != T_VOID || ss->at_return_type(), "T_VOID should only appear as return type");
|
|
575 return java_lang_Class::primitive_mirror(ss->type());
|
|
576 case T_OBJECT:
|
|
577 case T_ARRAY:
|
|
578 symbolOop name = ss->as_symbol(CHECK_NULL);
|
|
579 oop loader = instanceKlass::cast(method->method_holder())->class_loader();
|
|
580 oop protection_domain = instanceKlass::cast(method->method_holder())->protection_domain();
|
|
581 klassOop k = SystemDictionary::resolve_or_fail(
|
|
582 symbolHandle(THREAD, name),
|
|
583 Handle(THREAD, loader),
|
|
584 Handle(THREAD, protection_domain),
|
|
585 true, CHECK_NULL);
|
|
586 if (TraceClassResolution) {
|
|
587 trace_class_resolution(k);
|
|
588 }
|
|
589 return k->klass_part()->java_mirror();
|
|
590 };
|
|
591 }
|
|
592
|
|
593
|
|
594 objArrayHandle Reflection::get_parameter_types(methodHandle method, int parameter_count, oop* return_type, TRAPS) {
|
|
595 // Allocate array holding parameter types (java.lang.Class instances)
|
|
596 objArrayOop m = oopFactory::new_objArray(SystemDictionary::class_klass(), parameter_count, CHECK_(objArrayHandle()));
|
|
597 objArrayHandle mirrors (THREAD, m);
|
|
598 int index = 0;
|
|
599 // Collect parameter types
|
|
600 symbolHandle signature (THREAD, method->signature());
|
|
601 SignatureStream ss(signature);
|
|
602 while (!ss.at_return_type()) {
|
|
603 oop mirror = get_mirror_from_signature(method, &ss, CHECK_(objArrayHandle()));
|
|
604 mirrors->obj_at_put(index++, mirror);
|
|
605 ss.next();
|
|
606 }
|
|
607 assert(index == parameter_count, "invalid parameter count");
|
|
608 if (return_type != NULL) {
|
|
609 // Collect return type as well
|
|
610 assert(ss.at_return_type(), "return type should be present");
|
|
611 *return_type = get_mirror_from_signature(method, &ss, CHECK_(objArrayHandle()));
|
|
612 }
|
|
613 return mirrors;
|
|
614 }
|
|
615
|
|
616 objArrayHandle Reflection::get_exception_types(methodHandle method, TRAPS) {
|
|
617 return method->resolved_checked_exceptions(CHECK_(objArrayHandle()));
|
|
618 }
|
|
619
|
|
620
|
|
621 Handle Reflection::new_type(symbolHandle signature, KlassHandle k, TRAPS) {
|
|
622 // Basic types
|
|
623 BasicType type = vmSymbols::signature_type(signature());
|
|
624 if (type != T_OBJECT) {
|
|
625 return Handle(THREAD, Universe::java_mirror(type));
|
|
626 }
|
|
627
|
|
628 oop loader = instanceKlass::cast(k())->class_loader();
|
|
629 oop protection_domain = Klass::cast(k())->protection_domain();
|
|
630 klassOop result = SystemDictionary::resolve_or_fail(signature,
|
|
631 Handle(THREAD, loader),
|
|
632 Handle(THREAD, protection_domain),
|
|
633 true, CHECK_(Handle()));
|
|
634
|
|
635 if (TraceClassResolution) {
|
|
636 trace_class_resolution(result);
|
|
637 }
|
|
638
|
|
639 oop nt = Klass::cast(result)->java_mirror();
|
|
640 return Handle(THREAD, nt);
|
|
641 }
|
|
642
|
|
643
|
|
644 oop Reflection::new_method(methodHandle method, bool intern_name, bool for_constant_pool_access, TRAPS) {
|
|
645 // In jdk1.2.x, getMethods on an interface erroneously includes <clinit>, thus the complicated assert.
|
|
646 // Also allow sun.reflect.ConstantPool to refer to <clinit> methods as java.lang.reflect.Methods.
|
|
647 assert(!method()->is_initializer() ||
|
|
648 (for_constant_pool_access && method()->is_static()) ||
|
|
649 (method()->name() == vmSymbols::class_initializer_name()
|
|
650 && Klass::cast(method()->method_holder())->is_interface() && JDK_Version::is_jdk12x_version()), "should call new_constructor instead");
|
|
651 instanceKlassHandle holder (THREAD, method->method_holder());
|
|
652 int slot = method->method_idnum();
|
|
653
|
|
654 symbolHandle signature (THREAD, method->signature());
|
|
655 int parameter_count = ArgumentCount(signature).size();
|
|
656 oop return_type_oop = NULL;
|
|
657 objArrayHandle parameter_types = get_parameter_types(method, parameter_count, &return_type_oop, CHECK_NULL);
|
|
658 if (parameter_types.is_null() || return_type_oop == NULL) return NULL;
|
|
659
|
|
660 Handle return_type(THREAD, return_type_oop);
|
|
661
|
|
662 objArrayHandle exception_types = get_exception_types(method, CHECK_NULL);
|
|
663
|
|
664 if (exception_types.is_null()) return NULL;
|
|
665
|
|
666 symbolHandle method_name(THREAD, method->name());
|
|
667 Handle name;
|
|
668 if (intern_name) {
|
|
669 // intern_name is only true with UseNewReflection
|
|
670 oop name_oop = StringTable::intern(method_name(), CHECK_NULL);
|
|
671 name = Handle(THREAD, name_oop);
|
|
672 } else {
|
|
673 name = java_lang_String::create_from_symbol(method_name, CHECK_NULL);
|
|
674 }
|
|
675 if (name.is_null()) return NULL;
|
|
676
|
|
677 int modifiers = method->access_flags().as_int() & JVM_RECOGNIZED_METHOD_MODIFIERS;
|
|
678
|
|
679 Handle mh = java_lang_reflect_Method::create(CHECK_NULL);
|
|
680
|
|
681 java_lang_reflect_Method::set_clazz(mh(), holder->java_mirror());
|
|
682 java_lang_reflect_Method::set_slot(mh(), slot);
|
|
683 java_lang_reflect_Method::set_name(mh(), name());
|
|
684 java_lang_reflect_Method::set_return_type(mh(), return_type());
|
|
685 java_lang_reflect_Method::set_parameter_types(mh(), parameter_types());
|
|
686 java_lang_reflect_Method::set_exception_types(mh(), exception_types());
|
|
687 java_lang_reflect_Method::set_modifiers(mh(), modifiers);
|
|
688 java_lang_reflect_Method::set_override(mh(), false);
|
|
689 if (java_lang_reflect_Method::has_signature_field() &&
|
|
690 method->generic_signature() != NULL) {
|
|
691 symbolHandle gs(THREAD, method->generic_signature());
|
|
692 Handle sig = java_lang_String::create_from_symbol(gs, CHECK_NULL);
|
|
693 java_lang_reflect_Method::set_signature(mh(), sig());
|
|
694 }
|
|
695 if (java_lang_reflect_Method::has_annotations_field()) {
|
|
696 java_lang_reflect_Method::set_annotations(mh(), method->annotations());
|
|
697 }
|
|
698 if (java_lang_reflect_Method::has_parameter_annotations_field()) {
|
|
699 java_lang_reflect_Method::set_parameter_annotations(mh(), method->parameter_annotations());
|
|
700 }
|
|
701 if (java_lang_reflect_Method::has_annotation_default_field()) {
|
|
702 java_lang_reflect_Method::set_annotation_default(mh(), method->annotation_default());
|
|
703 }
|
|
704 return mh();
|
|
705 }
|
|
706
|
|
707
|
|
708 oop Reflection::new_constructor(methodHandle method, TRAPS) {
|
|
709 assert(method()->is_initializer(), "should call new_method instead");
|
|
710
|
|
711 instanceKlassHandle holder (THREAD, method->method_holder());
|
|
712 int slot = method->method_idnum();
|
|
713
|
|
714 symbolHandle signature (THREAD, method->signature());
|
|
715 int parameter_count = ArgumentCount(signature).size();
|
|
716 objArrayHandle parameter_types = get_parameter_types(method, parameter_count, NULL, CHECK_NULL);
|
|
717 if (parameter_types.is_null()) return NULL;
|
|
718
|
|
719 objArrayHandle exception_types = get_exception_types(method, CHECK_NULL);
|
|
720 if (exception_types.is_null()) return NULL;
|
|
721
|
|
722 int modifiers = method->access_flags().as_int() & JVM_RECOGNIZED_METHOD_MODIFIERS;
|
|
723
|
|
724 Handle ch = java_lang_reflect_Constructor::create(CHECK_NULL);
|
|
725
|
|
726 java_lang_reflect_Constructor::set_clazz(ch(), holder->java_mirror());
|
|
727 java_lang_reflect_Constructor::set_slot(ch(), slot);
|
|
728 java_lang_reflect_Constructor::set_parameter_types(ch(), parameter_types());
|
|
729 java_lang_reflect_Constructor::set_exception_types(ch(), exception_types());
|
|
730 java_lang_reflect_Constructor::set_modifiers(ch(), modifiers);
|
|
731 java_lang_reflect_Constructor::set_override(ch(), false);
|
|
732 if (java_lang_reflect_Constructor::has_signature_field() &&
|
|
733 method->generic_signature() != NULL) {
|
|
734 symbolHandle gs(THREAD, method->generic_signature());
|
|
735 Handle sig = java_lang_String::create_from_symbol(gs, CHECK_NULL);
|
|
736 java_lang_reflect_Constructor::set_signature(ch(), sig());
|
|
737 }
|
|
738 if (java_lang_reflect_Constructor::has_annotations_field()) {
|
|
739 java_lang_reflect_Constructor::set_annotations(ch(), method->annotations());
|
|
740 }
|
|
741 if (java_lang_reflect_Constructor::has_parameter_annotations_field()) {
|
|
742 java_lang_reflect_Constructor::set_parameter_annotations(ch(), method->parameter_annotations());
|
|
743 }
|
|
744 return ch();
|
|
745 }
|
|
746
|
|
747
|
|
748 oop Reflection::new_field(fieldDescriptor* fd, bool intern_name, TRAPS) {
|
|
749 symbolHandle field_name(THREAD, fd->name());
|
|
750 Handle name;
|
|
751 if (intern_name) {
|
|
752 // intern_name is only true with UseNewReflection
|
|
753 oop name_oop = StringTable::intern(field_name(), CHECK_NULL);
|
|
754 name = Handle(THREAD, name_oop);
|
|
755 } else {
|
|
756 name = java_lang_String::create_from_symbol(field_name, CHECK_NULL);
|
|
757 }
|
|
758 symbolHandle signature (THREAD, fd->signature());
|
|
759 KlassHandle holder (THREAD, fd->field_holder());
|
|
760 Handle type = new_type(signature, holder, CHECK_NULL);
|
|
761 Handle rh = java_lang_reflect_Field::create(CHECK_NULL);
|
|
762
|
|
763 java_lang_reflect_Field::set_clazz(rh(), Klass::cast(fd->field_holder())->java_mirror());
|
|
764 java_lang_reflect_Field::set_slot(rh(), fd->index());
|
|
765 java_lang_reflect_Field::set_name(rh(), name());
|
|
766 java_lang_reflect_Field::set_type(rh(), type());
|
|
767 // Note the ACC_ANNOTATION bit, which is a per-class access flag, is never set here.
|
|
768 java_lang_reflect_Field::set_modifiers(rh(), fd->access_flags().as_int() & JVM_RECOGNIZED_FIELD_MODIFIERS);
|
|
769 java_lang_reflect_Field::set_override(rh(), false);
|
|
770 if (java_lang_reflect_Field::has_signature_field() &&
|
|
771 fd->generic_signature() != NULL) {
|
|
772 symbolHandle gs(THREAD, fd->generic_signature());
|
|
773 Handle sig = java_lang_String::create_from_symbol(gs, CHECK_NULL);
|
|
774 java_lang_reflect_Field::set_signature(rh(), sig());
|
|
775 }
|
|
776 if (java_lang_reflect_Field::has_annotations_field()) {
|
|
777 java_lang_reflect_Field::set_annotations(rh(), fd->annotations());
|
|
778 }
|
|
779 return rh();
|
|
780 }
|
|
781
|
|
782
|
|
783 //---------------------------------------------------------------------------
|
|
784 //
|
|
785 // Supporting routines for old native code-based reflection (pre-JDK 1.4).
|
|
786 //
|
|
787 // See reflection.hpp for details.
|
|
788 //
|
|
789 //---------------------------------------------------------------------------
|
|
790
|
|
791 #ifdef SUPPORT_OLD_REFLECTION
|
|
792
|
|
793 methodHandle Reflection::resolve_interface_call(instanceKlassHandle klass, methodHandle method,
|
|
794 KlassHandle recv_klass, Handle receiver, TRAPS) {
|
|
795 assert(!method.is_null() , "method should not be null");
|
|
796
|
|
797 CallInfo info;
|
|
798 symbolHandle signature (THREAD, method->signature());
|
|
799 symbolHandle name (THREAD, method->name());
|
|
800 LinkResolver::resolve_interface_call(info, receiver, recv_klass, klass,
|
|
801 name, signature,
|
|
802 KlassHandle(), false, true,
|
|
803 CHECK_(methodHandle()));
|
|
804 return info.selected_method();
|
|
805 }
|
|
806
|
|
807
|
|
808 oop Reflection::invoke(instanceKlassHandle klass, methodHandle reflected_method,
|
|
809 Handle receiver, bool override, objArrayHandle ptypes,
|
|
810 BasicType rtype, objArrayHandle args, bool is_method_invoke, TRAPS) {
|
|
811 ResourceMark rm(THREAD);
|
|
812
|
|
813 methodHandle method; // actual method to invoke
|
|
814 KlassHandle target_klass; // target klass, receiver's klass for non-static
|
|
815
|
|
816 // Ensure klass is initialized
|
|
817 klass->initialize(CHECK_NULL);
|
|
818
|
|
819 bool is_static = reflected_method->is_static();
|
|
820 if (is_static) {
|
|
821 // ignore receiver argument
|
|
822 method = reflected_method;
|
|
823 target_klass = klass;
|
|
824 } else {
|
|
825 // check for null receiver
|
|
826 if (receiver.is_null()) {
|
|
827 THROW_0(vmSymbols::java_lang_NullPointerException());
|
|
828 }
|
|
829 // Check class of receiver against class declaring method
|
|
830 if (!receiver->is_a(klass())) {
|
|
831 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "object is not an instance of declaring class");
|
|
832 }
|
|
833 // target klass is receiver's klass
|
|
834 target_klass = KlassHandle(THREAD, receiver->klass());
|
|
835 // no need to resolve if method is private or <init>
|
|
836 if (reflected_method->is_private() || reflected_method->name() == vmSymbols::object_initializer_name()) {
|
|
837 method = reflected_method;
|
|
838 } else {
|
|
839 // resolve based on the receiver
|
|
840 if (instanceKlass::cast(reflected_method->method_holder())->is_interface()) {
|
|
841 // resolve interface call
|
|
842 if (ReflectionWrapResolutionErrors) {
|
|
843 // new default: 6531596
|
|
844 // Match resolution errors with those thrown due to reflection inlining
|
|
845 // Linktime resolution & IllegalAccessCheck already done by Class.getMethod()
|
|
846 method = resolve_interface_call(klass, reflected_method, target_klass, receiver, THREAD);
|
|
847 if (HAS_PENDING_EXCEPTION) {
|
|
848 // Method resolution threw an exception; wrap it in an InvocationTargetException
|
|
849 oop resolution_exception = PENDING_EXCEPTION;
|
|
850 CLEAR_PENDING_EXCEPTION;
|
|
851 JavaCallArguments args(Handle(THREAD, resolution_exception));
|
|
852 THROW_ARG_0(vmSymbolHandles::java_lang_reflect_InvocationTargetException(),
|
|
853 vmSymbolHandles::throwable_void_signature(),
|
|
854 &args);
|
|
855 }
|
|
856 } else {
|
|
857 method = resolve_interface_call(klass, reflected_method, target_klass, receiver, CHECK_(NULL));
|
|
858 }
|
|
859 } else {
|
|
860 // if the method can be overridden, we resolve using the vtable index.
|
|
861 int index = reflected_method->vtable_index();
|
|
862 method = reflected_method;
|
|
863 if (index != methodOopDesc::nonvirtual_vtable_index) {
|
|
864 // target_klass might be an arrayKlassOop but all vtables start at
|
|
865 // the same place. The cast is to avoid virtual call and assertion.
|
|
866 instanceKlass* inst = (instanceKlass*)target_klass()->klass_part();
|
|
867 method = methodHandle(THREAD, inst->method_at_vtable(index));
|
|
868 }
|
|
869 if (!method.is_null()) {
|
|
870 // Check for abstract methods as well
|
|
871 if (method->is_abstract()) {
|
|
872 // new default: 6531596
|
|
873 if (ReflectionWrapResolutionErrors) {
|
|
874 ResourceMark rm(THREAD);
|
|
875 Handle h_origexception = Exceptions::new_exception(THREAD,
|
|
876 vmSymbols::java_lang_AbstractMethodError(),
|
|
877 methodOopDesc::name_and_sig_as_C_string(Klass::cast(target_klass()),
|
|
878 method->name(),
|
|
879 method->signature()));
|
|
880 JavaCallArguments args(h_origexception);
|
|
881 THROW_ARG_0(vmSymbolHandles::java_lang_reflect_InvocationTargetException(),
|
|
882 vmSymbolHandles::throwable_void_signature(),
|
|
883 &args);
|
|
884 } else {
|
|
885 ResourceMark rm(THREAD);
|
|
886 THROW_MSG_0(vmSymbols::java_lang_AbstractMethodError(),
|
|
887 methodOopDesc::name_and_sig_as_C_string(Klass::cast(target_klass()),
|
|
888 method->name(),
|
|
889 method->signature()));
|
|
890 }
|
|
891 }
|
|
892 }
|
|
893 }
|
|
894 }
|
|
895 }
|
|
896
|
|
897 // I believe this is a ShouldNotGetHere case which requires
|
|
898 // an internal vtable bug. If you ever get this please let Karen know.
|
|
899 if (method.is_null()) {
|
|
900 ResourceMark rm(THREAD);
|
|
901 THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(),
|
|
902 methodOopDesc::name_and_sig_as_C_string(Klass::cast(klass()),
|
|
903 reflected_method->name(),
|
|
904 reflected_method->signature()));
|
|
905 }
|
|
906
|
|
907 // In the JDK 1.4 reflection implementation, the security check is
|
|
908 // done at the Java level
|
|
909 if (!(JDK_Version::is_gte_jdk14x_version() && UseNewReflection)) {
|
|
910
|
|
911 // Access checking (unless overridden by Method)
|
|
912 if (!override) {
|
|
913 if (!(klass->is_public() && reflected_method->is_public())) {
|
|
914 bool access = Reflection::reflect_check_access(klass(), reflected_method->access_flags(), target_klass(), is_method_invoke, CHECK_NULL);
|
|
915 if (!access) {
|
|
916 return NULL; // exception
|
|
917 }
|
|
918 }
|
|
919 }
|
|
920
|
|
921 } // !(Universe::is_gte_jdk14x_version() && UseNewReflection)
|
|
922
|
|
923 assert(ptypes->is_objArray(), "just checking");
|
|
924 int args_len = args.is_null() ? 0 : args->length();
|
|
925 // Check number of arguments
|
|
926 if (ptypes->length() != args_len) {
|
|
927 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "wrong number of arguments");
|
|
928 }
|
|
929
|
|
930 // Create object to contain parameters for the JavaCall
|
|
931 JavaCallArguments java_args(method->size_of_parameters());
|
|
932
|
|
933 if (!is_static) {
|
|
934 java_args.push_oop(receiver);
|
|
935 }
|
|
936
|
|
937 for (int i = 0; i < args_len; i++) {
|
|
938 oop type_mirror = ptypes->obj_at(i);
|
|
939 oop arg = args->obj_at(i);
|
|
940 if (java_lang_Class::is_primitive(type_mirror)) {
|
|
941 jvalue value;
|
|
942 BasicType ptype = basic_type_mirror_to_basic_type(type_mirror, CHECK_NULL);
|
|
943 BasicType atype = unbox_for_primitive(arg, &value, CHECK_NULL);
|
|
944 if (ptype != atype) {
|
|
945 widen(&value, atype, ptype, CHECK_NULL);
|
|
946 }
|
|
947 switch (ptype) {
|
|
948 case T_BOOLEAN: java_args.push_int(value.z); break;
|
|
949 case T_CHAR: java_args.push_int(value.c); break;
|
|
950 case T_BYTE: java_args.push_int(value.b); break;
|
|
951 case T_SHORT: java_args.push_int(value.s); break;
|
|
952 case T_INT: java_args.push_int(value.i); break;
|
|
953 case T_LONG: java_args.push_long(value.j); break;
|
|
954 case T_FLOAT: java_args.push_float(value.f); break;
|
|
955 case T_DOUBLE: java_args.push_double(value.d); break;
|
|
956 default:
|
|
957 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "argument type mismatch");
|
|
958 }
|
|
959 } else {
|
|
960 if (arg != NULL) {
|
|
961 klassOop k = java_lang_Class::as_klassOop(type_mirror);
|
|
962 if (!arg->is_a(k)) {
|
|
963 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "argument type mismatch");
|
|
964 }
|
|
965 }
|
|
966 Handle arg_handle(THREAD, arg); // Create handle for argument
|
|
967 java_args.push_oop(arg_handle); // Push handle
|
|
968 }
|
|
969 }
|
|
970
|
|
971 assert(java_args.size_of_parameters() == method->size_of_parameters(), "just checking");
|
|
972
|
|
973 // All oops (including receiver) is passed in as Handles. An potential oop is returned as an
|
|
974 // oop (i.e., NOT as an handle)
|
|
975 JavaValue result(rtype);
|
|
976 JavaCalls::call(&result, method, &java_args, THREAD);
|
|
977
|
|
978 if (HAS_PENDING_EXCEPTION) {
|
|
979 // Method threw an exception; wrap it in an InvocationTargetException
|
|
980 oop target_exception = PENDING_EXCEPTION;
|
|
981 CLEAR_PENDING_EXCEPTION;
|
|
982 JavaCallArguments args(Handle(THREAD, target_exception));
|
|
983 THROW_ARG_0(vmSymbolHandles::java_lang_reflect_InvocationTargetException(),
|
|
984 vmSymbolHandles::throwable_void_signature(),
|
|
985 &args);
|
|
986 } else {
|
|
987 if (rtype == T_BOOLEAN || rtype == T_BYTE || rtype == T_CHAR || rtype == T_SHORT)
|
|
988 narrow((jvalue*) result.get_value_addr(), rtype, CHECK_NULL);
|
|
989 return box((jvalue*) result.get_value_addr(), rtype, CHECK_NULL);
|
|
990 }
|
|
991 }
|
|
992
|
|
993
|
|
994 void Reflection::narrow(jvalue* value, BasicType narrow_type, TRAPS) {
|
|
995 switch (narrow_type) {
|
|
996 case T_BOOLEAN:
|
|
997 value->z = (jboolean) value->i;
|
|
998 return;
|
|
999 case T_BYTE:
|
|
1000 value->b = (jbyte) value->i;
|
|
1001 return;
|
|
1002 case T_CHAR:
|
|
1003 value->c = (jchar) value->i;
|
|
1004 return;
|
|
1005 case T_SHORT:
|
|
1006 value->s = (jshort) value->i;
|
|
1007 return;
|
|
1008 default:
|
|
1009 break; // fail
|
|
1010 }
|
|
1011 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), "argument type mismatch");
|
|
1012 }
|
|
1013
|
|
1014
|
|
1015 BasicType Reflection::basic_type_mirror_to_basic_type(oop basic_type_mirror, TRAPS) {
|
|
1016 assert(java_lang_Class::is_primitive(basic_type_mirror), "just checking");
|
|
1017 return java_lang_Class::primitive_type(basic_type_mirror);
|
|
1018 }
|
|
1019
|
|
1020
|
|
1021 bool Reflection::match_parameter_types(methodHandle method, objArrayHandle types, int parameter_count, TRAPS) {
|
|
1022 int types_len = types.is_null() ? 0 : types->length();
|
|
1023 if (types_len != parameter_count) return false;
|
|
1024 if (parameter_count > 0) {
|
|
1025 objArrayHandle method_types = get_parameter_types(method, parameter_count, NULL, CHECK_false);
|
|
1026 for (int index = 0; index < parameter_count; index++) {
|
|
1027 if (types->obj_at(index) != method_types->obj_at(index)) {
|
|
1028 return false;
|
|
1029 }
|
|
1030 }
|
|
1031 }
|
|
1032 return true;
|
|
1033 }
|
|
1034
|
|
1035
|
|
1036 oop Reflection::new_field(FieldStream* st, TRAPS) {
|
|
1037 symbolHandle field_name(THREAD, st->name());
|
|
1038 Handle name = java_lang_String::create_from_symbol(field_name, CHECK_NULL);
|
|
1039 symbolHandle signature(THREAD, st->signature());
|
|
1040 Handle type = new_type(signature, st->klass(), CHECK_NULL);
|
|
1041 Handle rh = java_lang_reflect_Field::create(CHECK_NULL);
|
|
1042 oop result = rh();
|
|
1043
|
|
1044 java_lang_reflect_Field::set_clazz(result, st->klass()->java_mirror());
|
|
1045 java_lang_reflect_Field::set_slot(result, st->index());
|
|
1046 java_lang_reflect_Field::set_name(result, name());
|
|
1047 java_lang_reflect_Field::set_type(result, type());
|
|
1048 // Note the ACC_ANNOTATION bit, which is a per-class access flag, is never set here.
|
|
1049 java_lang_reflect_Field::set_modifiers(result, st->access_flags().as_int() & JVM_RECOGNIZED_FIELD_MODIFIERS);
|
|
1050 java_lang_reflect_Field::set_override(result, false);
|
|
1051 return result;
|
|
1052 }
|
|
1053
|
|
1054
|
|
1055 bool Reflection::resolve_field(Handle field_mirror, Handle& receiver, fieldDescriptor* fd, bool check_final, TRAPS) {
|
|
1056 if (field_mirror.is_null()) {
|
|
1057 THROW_(vmSymbols::java_lang_NullPointerException(), false);
|
|
1058 }
|
|
1059
|
|
1060 instanceKlassHandle klass (THREAD, java_lang_Class::as_klassOop(java_lang_reflect_Field::clazz(field_mirror())));
|
|
1061 int slot = java_lang_reflect_Field::slot(field_mirror());
|
|
1062
|
|
1063 // Ensure klass is initialized
|
|
1064 klass->initialize(CHECK_false);
|
|
1065 fd->initialize(klass(), slot);
|
|
1066
|
|
1067 bool is_static = fd->is_static();
|
|
1068 KlassHandle receiver_klass;
|
|
1069
|
|
1070 if (is_static) {
|
|
1071 receiver = KlassHandle(THREAD, klass());
|
|
1072 receiver_klass = klass;
|
|
1073 } else {
|
|
1074 // Check object is a non-null instance of declaring class
|
|
1075 if (receiver.is_null()) {
|
|
1076 THROW_(vmSymbols::java_lang_NullPointerException(), false);
|
|
1077 }
|
|
1078 if (!receiver->is_a(klass())) {
|
|
1079 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), "object is not an instance of declaring class", false);
|
|
1080 }
|
|
1081 receiver_klass = KlassHandle(THREAD, receiver->klass());
|
|
1082 }
|
|
1083
|
|
1084 // Access checking (unless overridden by Field)
|
|
1085 if (!java_lang_reflect_Field::override(field_mirror())) {
|
|
1086 if (!(klass->is_public() && fd->is_public())) {
|
|
1087 bool access_check = reflect_check_access(klass(), fd->access_flags(), receiver_klass(), false, CHECK_false);
|
|
1088 if (!access_check) {
|
|
1089 return false; // exception
|
|
1090 }
|
|
1091 }
|
|
1092 }
|
|
1093
|
|
1094 if (check_final && fd->is_final()) {
|
|
1095 // In 1.3 we always throw an error when attempting to set a final field.
|
|
1096 // In 1.2.x, this was allowed in the override bit was set by calling Field.setAccessible(true).
|
|
1097 // We currently maintain backwards compatibility. See bug 4250960.
|
|
1098 bool strict_final_check = !JDK_Version::is_jdk12x_version();
|
|
1099 if (strict_final_check || !java_lang_reflect_Field::override(field_mirror())) {
|
|
1100 THROW_MSG_(vmSymbols::java_lang_IllegalAccessException(), "field is final", false);
|
|
1101 }
|
|
1102 }
|
|
1103 return true;
|
|
1104 }
|
|
1105
|
|
1106
|
|
1107 BasicType Reflection::field_get(jvalue* value, fieldDescriptor* fd, Handle receiver) {
|
|
1108 BasicType field_type = fd->field_type();
|
|
1109 int offset = fd->offset();
|
|
1110 switch (field_type) {
|
|
1111 case T_BOOLEAN:
|
|
1112 value->z = receiver->bool_field(offset);
|
|
1113 break;
|
|
1114 case T_CHAR:
|
|
1115 value->c = receiver->char_field(offset);
|
|
1116 break;
|
|
1117 case T_FLOAT:
|
|
1118 value->f = receiver->float_field(offset);
|
|
1119 break;
|
|
1120 case T_DOUBLE:
|
|
1121 value->d = receiver->double_field(offset);
|
|
1122 break;
|
|
1123 case T_BYTE:
|
|
1124 value->b = receiver->byte_field(offset);
|
|
1125 break;
|
|
1126 case T_SHORT:
|
|
1127 value->s = receiver->short_field(offset);
|
|
1128 break;
|
|
1129 case T_INT:
|
|
1130 value->i = receiver->int_field(offset);
|
|
1131 break;
|
|
1132 case T_LONG:
|
|
1133 value->j = receiver->long_field(offset);
|
|
1134 break;
|
|
1135 case T_OBJECT:
|
|
1136 case T_ARRAY:
|
|
1137 value->l = (jobject) receiver->obj_field(offset);
|
|
1138 break;
|
|
1139 default:
|
|
1140 return T_ILLEGAL;
|
|
1141 }
|
|
1142 return field_type;
|
|
1143 }
|
|
1144
|
|
1145
|
|
1146 void Reflection::field_set(jvalue* value, fieldDescriptor* fd, Handle receiver, BasicType value_type, TRAPS) {
|
|
1147 BasicType field_type = fd->field_type();
|
|
1148 if (field_type != value_type) {
|
|
1149 widen(value, value_type, field_type, CHECK);
|
|
1150 }
|
|
1151
|
|
1152 int offset = fd->offset();
|
|
1153 switch (field_type) {
|
|
1154 case T_BOOLEAN:
|
|
1155 receiver->bool_field_put(offset, value->z);
|
|
1156 break;
|
|
1157 case T_CHAR:
|
|
1158 receiver->char_field_put(offset, value->c);
|
|
1159 break;
|
|
1160 case T_FLOAT:
|
|
1161 receiver->float_field_put(offset, value->f);
|
|
1162 break;
|
|
1163 case T_DOUBLE:
|
|
1164 receiver->double_field_put(offset, value->d);
|
|
1165 break;
|
|
1166 case T_BYTE:
|
|
1167 receiver->byte_field_put(offset, value->b);
|
|
1168 break;
|
|
1169 case T_SHORT:
|
|
1170 receiver->short_field_put(offset, value->s);
|
|
1171 break;
|
|
1172 case T_INT:
|
|
1173 receiver->int_field_put(offset, value->i);
|
|
1174 break;
|
|
1175 case T_LONG:
|
|
1176 receiver->long_field_put(offset, value->j);
|
|
1177 break;
|
|
1178 case T_OBJECT:
|
|
1179 case T_ARRAY: {
|
|
1180 Handle obj(THREAD, (oop) value->l);
|
|
1181 if (obj.not_null()) {
|
|
1182 symbolHandle signature(THREAD, fd->signature());
|
|
1183 Handle loader (THREAD, fd->loader());
|
|
1184 Handle protect (THREAD, Klass::cast(fd->field_holder())->protection_domain());
|
|
1185 klassOop k = SystemDictionary::resolve_or_fail(signature, loader, protect, true, CHECK); // may block
|
|
1186 if (!obj->is_a(k)) {
|
|
1187 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), "field type mismatch");
|
|
1188 }
|
|
1189 }
|
|
1190 receiver->obj_field_put(offset, obj());
|
|
1191 break;
|
|
1192 }
|
|
1193 default:
|
|
1194 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), "field type mismatch");
|
|
1195 }
|
|
1196 }
|
|
1197
|
|
1198
|
|
1199 oop Reflection::reflect_field(oop mirror, symbolOop field_name, jint which, TRAPS) {
|
|
1200 // Exclude primitive types and array types
|
|
1201 if (java_lang_Class::is_primitive(mirror)) return NULL;
|
|
1202 if (Klass::cast(java_lang_Class::as_klassOop(mirror))->oop_is_array()) return NULL;
|
|
1203
|
|
1204 instanceKlassHandle k(THREAD, java_lang_Class::as_klassOop(mirror));
|
|
1205 bool local_fields_only = (which == DECLARED);
|
|
1206
|
|
1207 // Ensure class is linked
|
|
1208 k->link_class(CHECK_NULL);
|
|
1209
|
|
1210 // Search class and interface fields
|
|
1211 for (FieldStream st(k, local_fields_only, false); !st.eos(); st.next()) {
|
|
1212 if (st.name() == field_name) {
|
|
1213 if (local_fields_only || st.access_flags().is_public()) {
|
|
1214 return new_field(&st, THREAD);
|
|
1215 }
|
|
1216 }
|
|
1217 }
|
|
1218
|
|
1219 return NULL;
|
|
1220 }
|
|
1221
|
|
1222
|
|
1223 objArrayOop Reflection::reflect_fields(oop mirror, jint which, TRAPS) {
|
|
1224 // Exclude primitive types and array types
|
|
1225 if (java_lang_Class::is_primitive(mirror)
|
|
1226 || Klass::cast(java_lang_Class::as_klassOop(mirror))->oop_is_array()) {
|
|
1227 symbolHandle name = vmSymbolHandles::java_lang_reflect_Field();
|
|
1228 klassOop klass = SystemDictionary::resolve_or_fail(name, true, CHECK_NULL);
|
|
1229 return oopFactory::new_objArray(klass, 0, CHECK_NULL); // Return empty array
|
|
1230 }
|
|
1231
|
|
1232 instanceKlassHandle k(THREAD, java_lang_Class::as_klassOop(mirror));
|
|
1233
|
|
1234 // Ensure class is linked
|
|
1235 k->link_class(CHECK_NULL);
|
|
1236
|
|
1237 bool local_fields_only = (which == DECLARED);
|
|
1238 int count = 0;
|
|
1239 { // Compute fields count for class and interface fields
|
|
1240 for (FieldStream st(k, local_fields_only, false); !st.eos(); st.next()) {
|
|
1241 if (local_fields_only || st.access_flags().is_public()) {
|
|
1242 count++;
|
|
1243 }
|
|
1244 }
|
|
1245 }
|
|
1246
|
|
1247 // Allocate result
|
|
1248 symbolHandle name = vmSymbolHandles::java_lang_reflect_Field();
|
|
1249 klassOop klass = SystemDictionary::resolve_or_fail(name, true, CHECK_NULL);
|
|
1250 objArrayOop r = oopFactory::new_objArray(klass, count, CHECK_NULL);
|
|
1251 objArrayHandle result (THREAD, r);
|
|
1252
|
|
1253 // Fill in results backwards
|
|
1254 {
|
|
1255 for (FieldStream st(k, local_fields_only, false); !st.eos(); st.next()) {
|
|
1256 if (local_fields_only || st.access_flags().is_public()) {
|
|
1257 oop field = new_field(&st, CHECK_NULL);
|
|
1258 result->obj_at_put(--count, field);
|
|
1259 }
|
|
1260 }
|
|
1261 assert(count == 0, "just checking");
|
|
1262 }
|
|
1263 return result();
|
|
1264 }
|
|
1265
|
|
1266
|
|
1267 oop Reflection::reflect_method(oop mirror, symbolHandle method_name, objArrayHandle types, jint which, TRAPS) {
|
|
1268 if (java_lang_Class::is_primitive(mirror)) return NULL;
|
|
1269 klassOop klass = java_lang_Class::as_klassOop(mirror);
|
|
1270 if (Klass::cast(klass)->oop_is_array() && which == MEMBER_DECLARED) return NULL;
|
|
1271
|
|
1272 if (Klass::cast(java_lang_Class::as_klassOop(mirror))->oop_is_array()) {
|
|
1273 klass = SystemDictionary::object_klass();
|
|
1274 }
|
|
1275 instanceKlassHandle h_k(THREAD, klass);
|
|
1276
|
|
1277 // Ensure klass is linked (need not be initialized)
|
|
1278 h_k->link_class(CHECK_NULL);
|
|
1279
|
|
1280 // For interfaces include static initializers under jdk1.2.x (since classic does that)
|
|
1281 bool include_clinit = JDK_Version::is_jdk12x_version() && h_k->is_interface();
|
|
1282
|
|
1283 switch (which) {
|
|
1284 case MEMBER_PUBLIC:
|
|
1285 // First the public non-static methods (works if method holder is an interface)
|
|
1286 // Note that we can ignore checks for overridden methods, since we go up the hierarchy.
|
|
1287 {
|
|
1288 for (MethodStream st(h_k, false, false); !st.eos(); st.next()) {
|
|
1289 methodHandle m(THREAD, st.method());
|
|
1290 // For interfaces include static initializers since classic does that!
|
|
1291 if (method_name() == m->name() && (include_clinit || (m->is_public() && !m->is_static() && !m->is_initializer()))) {
|
|
1292 symbolHandle signature(THREAD, m->signature());
|
|
1293 bool parameter_match = match_parameter_types(m, types, ArgumentCount(signature).size(), CHECK_NULL);
|
|
1294 if (parameter_match) {
|
|
1295 return new_method(m, false, false, THREAD);
|
|
1296 }
|
|
1297 }
|
|
1298 }
|
|
1299 }
|
|
1300 // Then the public static methods (works if method holder is an interface)
|
|
1301 {
|
|
1302 for (MethodStream st(h_k, false, false); !st.eos(); st.next()) {
|
|
1303 methodHandle m(THREAD, st.method());
|
|
1304 if (method_name() == m->name() && m->is_public() && m->is_static() && !m->is_initializer()) {
|
|
1305 symbolHandle signature(THREAD, m->signature());
|
|
1306 bool parameter_match = match_parameter_types(m, types, ArgumentCount(signature).size(), CHECK_NULL);
|
|
1307 if (parameter_match) {
|
|
1308 return new_method(m, false, false, THREAD);
|
|
1309 }
|
|
1310 }
|
|
1311 }
|
|
1312 }
|
|
1313 break;
|
|
1314 case MEMBER_DECLARED:
|
|
1315 // All local methods
|
|
1316 {
|
|
1317 for (MethodStream st(h_k, true, true); !st.eos(); st.next()) {
|
|
1318 methodHandle m(THREAD, st.method());
|
|
1319 if (method_name() == m->name() && !m->is_initializer()) {
|
|
1320 symbolHandle signature(THREAD, m->signature());
|
|
1321 bool parameter_match = match_parameter_types(m, types, ArgumentCount(signature).size(), CHECK_NULL);
|
|
1322 if (parameter_match) {
|
|
1323 return new_method(m, false, false, THREAD);
|
|
1324 }
|
|
1325 }
|
|
1326 }
|
|
1327 }
|
|
1328 break;
|
|
1329 default:
|
|
1330 break;
|
|
1331 }
|
|
1332 return NULL;
|
|
1333 }
|
|
1334
|
|
1335
|
|
1336 objArrayOop Reflection::reflect_methods(oop mirror, jint which, TRAPS) {
|
|
1337 // Exclude primitive types
|
|
1338 if (java_lang_Class::is_primitive(mirror) ||
|
|
1339 (Klass::cast(java_lang_Class::as_klassOop(mirror))->oop_is_array() && (which == MEMBER_DECLARED))) {
|
|
1340 klassOop klass = SystemDictionary::reflect_method_klass();
|
|
1341 return oopFactory::new_objArray(klass, 0, CHECK_NULL); // Return empty array
|
|
1342 }
|
|
1343
|
|
1344 klassOop klass = java_lang_Class::as_klassOop(mirror);
|
|
1345 if (Klass::cast(java_lang_Class::as_klassOop(mirror))->oop_is_array()) {
|
|
1346 klass = SystemDictionary::object_klass();
|
|
1347 }
|
|
1348 instanceKlassHandle h_k(THREAD, klass);
|
|
1349
|
|
1350 // Ensure klass is linked (need not be initialized)
|
|
1351 h_k->link_class(CHECK_NULL);
|
|
1352
|
|
1353 // We search the (super)interfaces only if h_k is an interface itself
|
|
1354 bool is_interface = h_k->is_interface();
|
|
1355
|
|
1356 // For interfaces include static initializers under jdk1.2.x (since classic does that)
|
|
1357 bool include_clinit = JDK_Version::is_jdk12x_version() && is_interface;
|
|
1358
|
|
1359 switch (which) {
|
|
1360 case MEMBER_PUBLIC:
|
|
1361 {
|
|
1362
|
|
1363 // Count public methods (non-static and static)
|
|
1364 int count = 0;
|
|
1365 {
|
|
1366 for (MethodStream st(h_k, false, false); !st.eos(); st.next()) {
|
|
1367 methodOop m = st.method();
|
|
1368 // For interfaces include static initializers since classic does that!
|
|
1369 if (include_clinit || (!m->is_initializer() && m->is_public() && !m->is_overridden_in(h_k()))) {
|
|
1370 count++;
|
|
1371 }
|
|
1372 }
|
|
1373 }
|
|
1374
|
|
1375 // Allocate result
|
|
1376 klassOop klass = SystemDictionary::reflect_method_klass();
|
|
1377 objArrayOop r = oopFactory::new_objArray(klass, count, CHECK_NULL);
|
|
1378 objArrayHandle h_result (THREAD, r);
|
|
1379
|
|
1380 // Fill in results backwards
|
|
1381 {
|
|
1382 // First the non-static public methods
|
|
1383 for (MethodStream st(h_k, false, false); !st.eos(); st.next()) {
|
|
1384 methodHandle m (THREAD, st.method());
|
|
1385 if (!m->is_static() && !m->is_initializer() && m->is_public() && !m->is_overridden_in(h_k())) {
|
|
1386 oop method = new_method(m, false, false, CHECK_NULL);
|
|
1387 if (method == NULL) {
|
|
1388 return NULL;
|
|
1389 } else {
|
|
1390 h_result->obj_at_put(--count, method);
|
|
1391 }
|
|
1392 }
|
|
1393 }
|
|
1394 }
|
|
1395 {
|
|
1396 // Then the static public methods
|
|
1397 for (MethodStream st(h_k, false, !is_interface); !st.eos(); st.next()) {
|
|
1398 methodHandle m (THREAD, st.method());
|
|
1399 if (m->is_static() && (include_clinit || (!m->is_initializer()) && m->is_public() && !m->is_overridden_in(h_k()))) {
|
|
1400 oop method = new_method(m, false, false, CHECK_NULL);
|
|
1401 if (method == NULL) {
|
|
1402 return NULL;
|
|
1403 } else {
|
|
1404 h_result->obj_at_put(--count, method);
|
|
1405 }
|
|
1406 }
|
|
1407 }
|
|
1408 }
|
|
1409
|
|
1410 assert(count == 0, "just checking");
|
|
1411 return h_result();
|
|
1412 }
|
|
1413
|
|
1414 case MEMBER_DECLARED:
|
|
1415 {
|
|
1416 // Count all methods
|
|
1417 int count = 0;
|
|
1418 {
|
|
1419 for (MethodStream st(h_k, true, !is_interface); !st.eos(); st.next()) {
|
|
1420 methodOop m = st.method();
|
|
1421 if (!m->is_initializer()) {
|
|
1422 count++;
|
|
1423 }
|
|
1424 }
|
|
1425 }
|
|
1426 // Allocate result
|
|
1427 klassOop klass = SystemDictionary::reflect_method_klass();
|
|
1428 objArrayOop r = oopFactory::new_objArray(klass, count, CHECK_NULL);
|
|
1429 objArrayHandle h_result (THREAD, r);
|
|
1430
|
|
1431 // Fill in results backwards
|
|
1432 {
|
|
1433 for (MethodStream st(h_k, true, true); !st.eos(); st.next()) {
|
|
1434 methodHandle m (THREAD, st.method());
|
|
1435 if (!m->is_initializer()) {
|
|
1436 oop method = new_method(m, false, false, CHECK_NULL);
|
|
1437 if (method == NULL) {
|
|
1438 return NULL;
|
|
1439 } else {
|
|
1440 h_result->obj_at_put(--count, method);
|
|
1441 }
|
|
1442 }
|
|
1443 }
|
|
1444 }
|
|
1445 assert(count == 0, "just checking");
|
|
1446 return h_result();
|
|
1447 }
|
|
1448 }
|
|
1449 ShouldNotReachHere();
|
|
1450 return NULL;
|
|
1451 }
|
|
1452
|
|
1453
|
|
1454 oop Reflection::reflect_constructor(oop mirror, objArrayHandle types, jint which, TRAPS) {
|
|
1455
|
|
1456 // Exclude primitive, interface and array types
|
|
1457 bool prim = java_lang_Class::is_primitive(mirror);
|
|
1458 Klass* klass = prim ? NULL : Klass::cast(java_lang_Class::as_klassOop(mirror));
|
|
1459 if (prim || klass->is_interface() || klass->oop_is_array()) return NULL;
|
|
1460
|
|
1461 // Must be instance klass
|
|
1462 instanceKlassHandle h_k(THREAD, java_lang_Class::as_klassOop(mirror));
|
|
1463
|
|
1464 // Ensure klass is linked (need not be initialized)
|
|
1465 h_k->link_class(CHECK_NULL);
|
|
1466
|
|
1467 bool local_only = (which == MEMBER_DECLARED);
|
|
1468 for (MethodStream st(h_k, true, true); !st.eos(); st.next()) {
|
|
1469 methodHandle m(THREAD, st.method());
|
|
1470 if (m->name() == vmSymbols::object_initializer_name() && (local_only || m->is_public())) {
|
|
1471 symbolHandle signature(THREAD, m->signature());
|
|
1472 bool parameter_match = match_parameter_types(m, types, ArgumentCount(signature).size(), CHECK_NULL);
|
|
1473 if (parameter_match) {
|
|
1474 return new_constructor(m, THREAD);
|
|
1475 }
|
|
1476 }
|
|
1477 }
|
|
1478
|
|
1479 return NULL;
|
|
1480 }
|
|
1481
|
|
1482
|
|
1483 objArrayOop Reflection::reflect_constructors(oop mirror, jint which, TRAPS) {
|
|
1484 // Exclude primitive, interface and array types
|
|
1485 bool prim = java_lang_Class::is_primitive(mirror);
|
|
1486 Klass* k = prim ? NULL : Klass::cast(java_lang_Class::as_klassOop(mirror));
|
|
1487 if (prim || k->is_interface() || k->oop_is_array()) {
|
|
1488 return oopFactory::new_objArray(SystemDictionary::reflect_constructor_klass(), 0, CHECK_NULL); // Return empty array
|
|
1489 }
|
|
1490
|
|
1491 // Must be instanceKlass at this point
|
|
1492 instanceKlassHandle h_k(THREAD, java_lang_Class::as_klassOop(mirror));
|
|
1493
|
|
1494 // Ensure klass is linked (need not be initialized)
|
|
1495 h_k->link_class(CHECK_NULL);
|
|
1496
|
|
1497 bool local_only = (which == MEMBER_DECLARED);
|
|
1498 int count = 0;
|
|
1499 {
|
|
1500 for (MethodStream st(h_k, true, true); !st.eos(); st.next()) {
|
|
1501 methodOop m = st.method();
|
|
1502 if (m->name() == vmSymbols::object_initializer_name() && (local_only || m->is_public())) {
|
|
1503 count++;
|
|
1504 }
|
|
1505 }
|
|
1506 }
|
|
1507
|
|
1508 // Allocate result
|
|
1509 symbolHandle name = vmSymbolHandles::java_lang_reflect_Constructor();
|
|
1510 klassOop klass = SystemDictionary::resolve_or_fail(name, true, CHECK_NULL);
|
|
1511 objArrayOop r = oopFactory::new_objArray(klass, count, CHECK_NULL);
|
|
1512 objArrayHandle h_result (THREAD, r);
|
|
1513
|
|
1514 // Fill in results backwards
|
|
1515 {
|
|
1516 for (MethodStream st(h_k, true, true); !st.eos(); st.next()) {
|
|
1517 methodHandle m (THREAD, st.method());
|
|
1518 if (m->name() == vmSymbols::object_initializer_name() && (local_only || m->is_public())) {
|
|
1519 oop constr = new_constructor(m, CHECK_NULL);
|
|
1520 if (constr == NULL) {
|
|
1521 return NULL;
|
|
1522 } else {
|
|
1523 h_result->obj_at_put(--count, constr);
|
|
1524 }
|
|
1525 }
|
|
1526 }
|
|
1527 assert(count == 0, "just checking");
|
|
1528 }
|
|
1529 return h_result();
|
|
1530 }
|
|
1531
|
|
1532
|
|
1533 // This would be nicer if, say, java.lang.reflect.Method was a subclass
|
|
1534 // of java.lang.reflect.Constructor
|
|
1535
|
|
1536 oop Reflection::invoke_method(oop method_mirror, Handle receiver, objArrayHandle args, TRAPS) {
|
|
1537 oop mirror = java_lang_reflect_Method::clazz(method_mirror);
|
|
1538 int slot = java_lang_reflect_Method::slot(method_mirror);
|
|
1539 bool override = java_lang_reflect_Method::override(method_mirror) != 0;
|
|
1540 objArrayHandle ptypes(THREAD, objArrayOop(java_lang_reflect_Method::parameter_types(method_mirror)));
|
|
1541
|
|
1542 oop return_type_mirror = java_lang_reflect_Method::return_type(method_mirror);
|
|
1543 BasicType rtype;
|
|
1544 if (java_lang_Class::is_primitive(return_type_mirror)) {
|
|
1545 rtype = basic_type_mirror_to_basic_type(return_type_mirror, CHECK_NULL);
|
|
1546 } else {
|
|
1547 rtype = T_OBJECT;
|
|
1548 }
|
|
1549
|
|
1550 instanceKlassHandle klass(THREAD, java_lang_Class::as_klassOop(mirror));
|
|
1551 if (!klass->methods()->is_within_bounds(slot)) {
|
|
1552 THROW_MSG_0(vmSymbols::java_lang_InternalError(), "invoke");
|
|
1553 }
|
|
1554 methodHandle method(THREAD, methodOop(klass->methods()->obj_at(slot)));
|
|
1555
|
|
1556 return invoke(klass, method, receiver, override, ptypes, rtype, args, true, THREAD);
|
|
1557 }
|
|
1558
|
|
1559
|
|
1560 oop Reflection::invoke_constructor(oop constructor_mirror, objArrayHandle args, TRAPS) {
|
|
1561 oop mirror = java_lang_reflect_Constructor::clazz(constructor_mirror);
|
|
1562 int slot = java_lang_reflect_Constructor::slot(constructor_mirror);
|
|
1563 bool override = java_lang_reflect_Constructor::override(constructor_mirror) != 0;
|
|
1564 objArrayHandle ptypes(THREAD, objArrayOop(java_lang_reflect_Constructor::parameter_types(constructor_mirror)));
|
|
1565
|
|
1566 instanceKlassHandle klass(THREAD, java_lang_Class::as_klassOop(mirror));
|
|
1567 if (!klass->methods()->is_within_bounds(slot)) {
|
|
1568 THROW_MSG_0(vmSymbols::java_lang_InternalError(), "invoke");
|
|
1569 }
|
|
1570 methodHandle method(THREAD, methodOop(klass->methods()->obj_at(slot)));
|
|
1571 assert(method->name() == vmSymbols::object_initializer_name(), "invalid constructor");
|
|
1572
|
|
1573 // Make sure klass gets initialize
|
|
1574 klass->initialize(CHECK_NULL);
|
|
1575
|
|
1576 // Create new instance (the receiver)
|
|
1577 klass->check_valid_for_instantiation(false, CHECK_NULL);
|
|
1578 Handle receiver = klass->allocate_instance_handle(CHECK_NULL);
|
|
1579
|
|
1580 // Ignore result from call and return receiver
|
|
1581 invoke(klass, method, receiver, override, ptypes, T_VOID, args, false, CHECK_NULL);
|
|
1582 return receiver();
|
|
1583 }
|
|
1584
|
|
1585
|
|
1586 #endif /* SUPPORT_OLD_REFLECTION */
|