Thu, 27 May 2010 18:01:56 -0700
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
Summary: Added new product ObjectAlignmentInBytes flag to control object alignment.
Reviewed-by: twisti, ysr, iveresov
duke@435 | 1 | /* |
twisti@1587 | 2 | * Copyright 1997-2010 Sun Microsystems, Inc. All Rights Reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
duke@435 | 19 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
duke@435 | 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
duke@435 | 21 | * have any questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
duke@435 | 25 | #include "incls/_precompiled.incl" |
duke@435 | 26 | #include "incls/_reflection.cpp.incl" |
duke@435 | 27 | |
duke@435 | 28 | #define JAVA_1_5_VERSION 49 |
duke@435 | 29 | |
duke@435 | 30 | static void trace_class_resolution(klassOop to_class) { |
duke@435 | 31 | ResourceMark rm; |
duke@435 | 32 | int line_number = -1; |
duke@435 | 33 | const char * source_file = NULL; |
duke@435 | 34 | klassOop caller = NULL; |
duke@435 | 35 | JavaThread* jthread = JavaThread::current(); |
duke@435 | 36 | if (jthread->has_last_Java_frame()) { |
duke@435 | 37 | vframeStream vfst(jthread); |
duke@435 | 38 | // skip over any frames belonging to java.lang.Class |
duke@435 | 39 | while (!vfst.at_end() && |
duke@435 | 40 | instanceKlass::cast(vfst.method()->method_holder())->name() == vmSymbols::java_lang_Class()) { |
duke@435 | 41 | vfst.next(); |
duke@435 | 42 | } |
duke@435 | 43 | if (!vfst.at_end()) { |
duke@435 | 44 | // this frame is a likely suspect |
duke@435 | 45 | caller = vfst.method()->method_holder(); |
duke@435 | 46 | line_number = vfst.method()->line_number_from_bci(vfst.bci()); |
duke@435 | 47 | symbolOop s = instanceKlass::cast(vfst.method()->method_holder())->source_file_name(); |
duke@435 | 48 | if (s != NULL) { |
duke@435 | 49 | source_file = s->as_C_string(); |
duke@435 | 50 | } |
duke@435 | 51 | } |
duke@435 | 52 | } |
duke@435 | 53 | if (caller != NULL) { |
duke@435 | 54 | const char * from = Klass::cast(caller)->external_name(); |
duke@435 | 55 | const char * to = Klass::cast(to_class)->external_name(); |
duke@435 | 56 | // print in a single call to reduce interleaving between threads |
duke@435 | 57 | if (source_file != NULL) { |
duke@435 | 58 | tty->print("RESOLVE %s %s %s:%d (reflection)\n", from, to, source_file, line_number); |
duke@435 | 59 | } else { |
duke@435 | 60 | tty->print("RESOLVE %s %s (reflection)\n", from, to); |
duke@435 | 61 | } |
duke@435 | 62 | } |
duke@435 | 63 | } |
duke@435 | 64 | |
duke@435 | 65 | |
duke@435 | 66 | oop Reflection::box(jvalue* value, BasicType type, TRAPS) { |
duke@435 | 67 | if (type == T_VOID) { |
duke@435 | 68 | return NULL; |
duke@435 | 69 | } |
duke@435 | 70 | if (type == T_OBJECT || type == T_ARRAY) { |
duke@435 | 71 | // regular objects are not boxed |
duke@435 | 72 | return (oop) value->l; |
duke@435 | 73 | } |
duke@435 | 74 | oop result = java_lang_boxing_object::create(type, value, CHECK_NULL); |
duke@435 | 75 | if (result == NULL) { |
duke@435 | 76 | THROW_(vmSymbols::java_lang_IllegalArgumentException(), result); |
duke@435 | 77 | } |
duke@435 | 78 | return result; |
duke@435 | 79 | } |
duke@435 | 80 | |
duke@435 | 81 | |
duke@435 | 82 | BasicType Reflection::unbox_for_primitive(oop box, jvalue* value, TRAPS) { |
duke@435 | 83 | if (box == NULL) { |
duke@435 | 84 | THROW_(vmSymbols::java_lang_IllegalArgumentException(), T_ILLEGAL); |
duke@435 | 85 | } |
duke@435 | 86 | return java_lang_boxing_object::get_value(box, value); |
duke@435 | 87 | } |
duke@435 | 88 | |
duke@435 | 89 | BasicType Reflection::unbox_for_regular_object(oop box, jvalue* value) { |
duke@435 | 90 | // Note: box is really the unboxed oop. It might even be a Short, etc.! |
duke@435 | 91 | value->l = (jobject) box; |
duke@435 | 92 | return T_OBJECT; |
duke@435 | 93 | } |
duke@435 | 94 | |
duke@435 | 95 | |
duke@435 | 96 | void Reflection::widen(jvalue* value, BasicType current_type, BasicType wide_type, TRAPS) { |
duke@435 | 97 | assert(wide_type != current_type, "widen should not be called with identical types"); |
duke@435 | 98 | switch (wide_type) { |
duke@435 | 99 | case T_BOOLEAN: |
duke@435 | 100 | case T_BYTE: |
duke@435 | 101 | case T_CHAR: |
duke@435 | 102 | break; // fail |
duke@435 | 103 | case T_SHORT: |
duke@435 | 104 | switch (current_type) { |
duke@435 | 105 | case T_BYTE: |
duke@435 | 106 | value->s = (jshort) value->b; |
duke@435 | 107 | return; |
duke@435 | 108 | } |
duke@435 | 109 | break; // fail |
duke@435 | 110 | case T_INT: |
duke@435 | 111 | switch (current_type) { |
duke@435 | 112 | case T_BYTE: |
duke@435 | 113 | value->i = (jint) value->b; |
duke@435 | 114 | return; |
duke@435 | 115 | case T_CHAR: |
duke@435 | 116 | value->i = (jint) value->c; |
duke@435 | 117 | return; |
duke@435 | 118 | case T_SHORT: |
duke@435 | 119 | value->i = (jint) value->s; |
duke@435 | 120 | return; |
duke@435 | 121 | } |
duke@435 | 122 | break; // fail |
duke@435 | 123 | case T_LONG: |
duke@435 | 124 | switch (current_type) { |
duke@435 | 125 | case T_BYTE: |
duke@435 | 126 | value->j = (jlong) value->b; |
duke@435 | 127 | return; |
duke@435 | 128 | case T_CHAR: |
duke@435 | 129 | value->j = (jlong) value->c; |
duke@435 | 130 | return; |
duke@435 | 131 | case T_SHORT: |
duke@435 | 132 | value->j = (jlong) value->s; |
duke@435 | 133 | return; |
duke@435 | 134 | case T_INT: |
duke@435 | 135 | value->j = (jlong) value->i; |
duke@435 | 136 | return; |
duke@435 | 137 | } |
duke@435 | 138 | break; // fail |
duke@435 | 139 | case T_FLOAT: |
duke@435 | 140 | switch (current_type) { |
duke@435 | 141 | case T_BYTE: |
duke@435 | 142 | value->f = (jfloat) value->b; |
duke@435 | 143 | return; |
duke@435 | 144 | case T_CHAR: |
duke@435 | 145 | value->f = (jfloat) value->c; |
duke@435 | 146 | return; |
duke@435 | 147 | case T_SHORT: |
duke@435 | 148 | value->f = (jfloat) value->s; |
duke@435 | 149 | return; |
duke@435 | 150 | case T_INT: |
duke@435 | 151 | value->f = (jfloat) value->i; |
duke@435 | 152 | return; |
duke@435 | 153 | case T_LONG: |
duke@435 | 154 | value->f = (jfloat) value->j; |
duke@435 | 155 | return; |
duke@435 | 156 | } |
duke@435 | 157 | break; // fail |
duke@435 | 158 | case T_DOUBLE: |
duke@435 | 159 | switch (current_type) { |
duke@435 | 160 | case T_BYTE: |
duke@435 | 161 | value->d = (jdouble) value->b; |
duke@435 | 162 | return; |
duke@435 | 163 | case T_CHAR: |
duke@435 | 164 | value->d = (jdouble) value->c; |
duke@435 | 165 | return; |
duke@435 | 166 | case T_SHORT: |
duke@435 | 167 | value->d = (jdouble) value->s; |
duke@435 | 168 | return; |
duke@435 | 169 | case T_INT: |
duke@435 | 170 | value->d = (jdouble) value->i; |
duke@435 | 171 | return; |
duke@435 | 172 | case T_FLOAT: |
duke@435 | 173 | value->d = (jdouble) value->f; |
duke@435 | 174 | return; |
duke@435 | 175 | case T_LONG: |
duke@435 | 176 | value->d = (jdouble) value->j; |
duke@435 | 177 | return; |
duke@435 | 178 | } |
duke@435 | 179 | break; // fail |
duke@435 | 180 | default: |
duke@435 | 181 | break; // fail |
duke@435 | 182 | } |
duke@435 | 183 | THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), "argument type mismatch"); |
duke@435 | 184 | } |
duke@435 | 185 | |
duke@435 | 186 | |
duke@435 | 187 | BasicType Reflection::array_get(jvalue* value, arrayOop a, int index, TRAPS) { |
duke@435 | 188 | if (!a->is_within_bounds(index)) { |
duke@435 | 189 | THROW_(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), T_ILLEGAL); |
duke@435 | 190 | } |
duke@435 | 191 | if (a->is_objArray()) { |
duke@435 | 192 | value->l = (jobject) objArrayOop(a)->obj_at(index); |
duke@435 | 193 | return T_OBJECT; |
duke@435 | 194 | } else { |
duke@435 | 195 | assert(a->is_typeArray(), "just checking"); |
duke@435 | 196 | BasicType type = typeArrayKlass::cast(a->klass())->element_type(); |
duke@435 | 197 | switch (type) { |
duke@435 | 198 | case T_BOOLEAN: |
duke@435 | 199 | value->z = typeArrayOop(a)->bool_at(index); |
duke@435 | 200 | break; |
duke@435 | 201 | case T_CHAR: |
duke@435 | 202 | value->c = typeArrayOop(a)->char_at(index); |
duke@435 | 203 | break; |
duke@435 | 204 | case T_FLOAT: |
duke@435 | 205 | value->f = typeArrayOop(a)->float_at(index); |
duke@435 | 206 | break; |
duke@435 | 207 | case T_DOUBLE: |
duke@435 | 208 | value->d = typeArrayOop(a)->double_at(index); |
duke@435 | 209 | break; |
duke@435 | 210 | case T_BYTE: |
duke@435 | 211 | value->b = typeArrayOop(a)->byte_at(index); |
duke@435 | 212 | break; |
duke@435 | 213 | case T_SHORT: |
duke@435 | 214 | value->s = typeArrayOop(a)->short_at(index); |
duke@435 | 215 | break; |
duke@435 | 216 | case T_INT: |
duke@435 | 217 | value->i = typeArrayOop(a)->int_at(index); |
duke@435 | 218 | break; |
duke@435 | 219 | case T_LONG: |
duke@435 | 220 | value->j = typeArrayOop(a)->long_at(index); |
duke@435 | 221 | break; |
duke@435 | 222 | default: |
duke@435 | 223 | return T_ILLEGAL; |
duke@435 | 224 | } |
duke@435 | 225 | return type; |
duke@435 | 226 | } |
duke@435 | 227 | } |
duke@435 | 228 | |
duke@435 | 229 | |
duke@435 | 230 | void Reflection::array_set(jvalue* value, arrayOop a, int index, BasicType value_type, TRAPS) { |
duke@435 | 231 | if (!a->is_within_bounds(index)) { |
duke@435 | 232 | THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); |
duke@435 | 233 | } |
duke@435 | 234 | if (a->is_objArray()) { |
duke@435 | 235 | if (value_type == T_OBJECT) { |
duke@435 | 236 | oop obj = (oop) value->l; |
duke@435 | 237 | if (obj != NULL) { |
duke@435 | 238 | klassOop element_klass = objArrayKlass::cast(a->klass())->element_klass(); |
duke@435 | 239 | if (!obj->is_a(element_klass)) { |
duke@435 | 240 | THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), "array element type mismatch"); |
duke@435 | 241 | } |
duke@435 | 242 | } |
duke@435 | 243 | objArrayOop(a)->obj_at_put(index, obj); |
duke@435 | 244 | } |
duke@435 | 245 | } else { |
duke@435 | 246 | assert(a->is_typeArray(), "just checking"); |
duke@435 | 247 | BasicType array_type = typeArrayKlass::cast(a->klass())->element_type(); |
duke@435 | 248 | if (array_type != value_type) { |
duke@435 | 249 | // The widen operation can potentially throw an exception, but cannot block, |
duke@435 | 250 | // so typeArrayOop a is safe if the call succeeds. |
duke@435 | 251 | widen(value, value_type, array_type, CHECK); |
duke@435 | 252 | } |
duke@435 | 253 | switch (array_type) { |
duke@435 | 254 | case T_BOOLEAN: |
duke@435 | 255 | typeArrayOop(a)->bool_at_put(index, value->z); |
duke@435 | 256 | break; |
duke@435 | 257 | case T_CHAR: |
duke@435 | 258 | typeArrayOop(a)->char_at_put(index, value->c); |
duke@435 | 259 | break; |
duke@435 | 260 | case T_FLOAT: |
duke@435 | 261 | typeArrayOop(a)->float_at_put(index, value->f); |
duke@435 | 262 | break; |
duke@435 | 263 | case T_DOUBLE: |
duke@435 | 264 | typeArrayOop(a)->double_at_put(index, value->d); |
duke@435 | 265 | break; |
duke@435 | 266 | case T_BYTE: |
duke@435 | 267 | typeArrayOop(a)->byte_at_put(index, value->b); |
duke@435 | 268 | break; |
duke@435 | 269 | case T_SHORT: |
duke@435 | 270 | typeArrayOop(a)->short_at_put(index, value->s); |
duke@435 | 271 | break; |
duke@435 | 272 | case T_INT: |
duke@435 | 273 | typeArrayOop(a)->int_at_put(index, value->i); |
duke@435 | 274 | break; |
duke@435 | 275 | case T_LONG: |
duke@435 | 276 | typeArrayOop(a)->long_at_put(index, value->j); |
duke@435 | 277 | break; |
duke@435 | 278 | default: |
duke@435 | 279 | THROW(vmSymbols::java_lang_IllegalArgumentException()); |
duke@435 | 280 | } |
duke@435 | 281 | } |
duke@435 | 282 | } |
duke@435 | 283 | |
duke@435 | 284 | |
duke@435 | 285 | klassOop Reflection::basic_type_mirror_to_arrayklass(oop basic_type_mirror, TRAPS) { |
duke@435 | 286 | assert(java_lang_Class::is_primitive(basic_type_mirror), "just checking"); |
duke@435 | 287 | BasicType type = java_lang_Class::primitive_type(basic_type_mirror); |
duke@435 | 288 | if (type == T_VOID) { |
duke@435 | 289 | THROW_0(vmSymbols::java_lang_IllegalArgumentException()); |
duke@435 | 290 | } else { |
duke@435 | 291 | return Universe::typeArrayKlassObj(type); |
duke@435 | 292 | } |
duke@435 | 293 | } |
duke@435 | 294 | |
duke@435 | 295 | |
duke@435 | 296 | oop Reflection:: basic_type_arrayklass_to_mirror(klassOop basic_type_arrayklass, TRAPS) { |
duke@435 | 297 | BasicType type = typeArrayKlass::cast(basic_type_arrayklass)->element_type(); |
duke@435 | 298 | return Universe::java_mirror(type); |
duke@435 | 299 | } |
duke@435 | 300 | |
duke@435 | 301 | |
duke@435 | 302 | arrayOop Reflection::reflect_new_array(oop element_mirror, jint length, TRAPS) { |
duke@435 | 303 | if (element_mirror == NULL) { |
duke@435 | 304 | THROW_0(vmSymbols::java_lang_NullPointerException()); |
duke@435 | 305 | } |
duke@435 | 306 | if (length < 0) { |
duke@435 | 307 | THROW_0(vmSymbols::java_lang_NegativeArraySizeException()); |
duke@435 | 308 | } |
duke@435 | 309 | if (java_lang_Class::is_primitive(element_mirror)) { |
duke@435 | 310 | klassOop tak = basic_type_mirror_to_arrayklass(element_mirror, CHECK_NULL); |
duke@435 | 311 | return typeArrayKlass::cast(tak)->allocate(length, THREAD); |
duke@435 | 312 | } else { |
duke@435 | 313 | klassOop k = java_lang_Class::as_klassOop(element_mirror); |
duke@435 | 314 | if (Klass::cast(k)->oop_is_array() && arrayKlass::cast(k)->dimension() >= MAX_DIM) { |
duke@435 | 315 | THROW_0(vmSymbols::java_lang_IllegalArgumentException()); |
duke@435 | 316 | } |
duke@435 | 317 | return oopFactory::new_objArray(k, length, THREAD); |
duke@435 | 318 | } |
duke@435 | 319 | } |
duke@435 | 320 | |
duke@435 | 321 | |
duke@435 | 322 | arrayOop Reflection::reflect_new_multi_array(oop element_mirror, typeArrayOop dim_array, TRAPS) { |
duke@435 | 323 | assert(dim_array->is_typeArray(), "just checking"); |
duke@435 | 324 | assert(typeArrayKlass::cast(dim_array->klass())->element_type() == T_INT, "just checking"); |
duke@435 | 325 | |
duke@435 | 326 | if (element_mirror == NULL) { |
duke@435 | 327 | THROW_0(vmSymbols::java_lang_NullPointerException()); |
duke@435 | 328 | } |
duke@435 | 329 | |
duke@435 | 330 | int len = dim_array->length(); |
duke@435 | 331 | if (len <= 0 || len > MAX_DIM) { |
duke@435 | 332 | THROW_0(vmSymbols::java_lang_IllegalArgumentException()); |
duke@435 | 333 | } |
duke@435 | 334 | |
duke@435 | 335 | jint dimensions[MAX_DIM]; // C array copy of intArrayOop |
duke@435 | 336 | for (int i = 0; i < len; i++) { |
duke@435 | 337 | int d = dim_array->int_at(i); |
duke@435 | 338 | if (d < 0) { |
duke@435 | 339 | THROW_0(vmSymbols::java_lang_NegativeArraySizeException()); |
duke@435 | 340 | } |
duke@435 | 341 | dimensions[i] = d; |
duke@435 | 342 | } |
duke@435 | 343 | |
duke@435 | 344 | klassOop klass; |
duke@435 | 345 | int dim = len; |
duke@435 | 346 | if (java_lang_Class::is_primitive(element_mirror)) { |
duke@435 | 347 | klass = basic_type_mirror_to_arrayklass(element_mirror, CHECK_NULL); |
duke@435 | 348 | } else { |
duke@435 | 349 | klass = java_lang_Class::as_klassOop(element_mirror); |
duke@435 | 350 | if (Klass::cast(klass)->oop_is_array()) { |
duke@435 | 351 | int k_dim = arrayKlass::cast(klass)->dimension(); |
duke@435 | 352 | if (k_dim + len > MAX_DIM) { |
duke@435 | 353 | THROW_0(vmSymbols::java_lang_IllegalArgumentException()); |
duke@435 | 354 | } |
duke@435 | 355 | dim += k_dim; |
duke@435 | 356 | } |
duke@435 | 357 | } |
duke@435 | 358 | klass = Klass::cast(klass)->array_klass(dim, CHECK_NULL); |
duke@435 | 359 | oop obj = arrayKlass::cast(klass)->multi_allocate(len, dimensions, THREAD); |
duke@435 | 360 | assert(obj->is_array(), "just checking"); |
duke@435 | 361 | return arrayOop(obj); |
duke@435 | 362 | } |
duke@435 | 363 | |
duke@435 | 364 | |
duke@435 | 365 | oop Reflection::array_component_type(oop mirror, TRAPS) { |
duke@435 | 366 | if (java_lang_Class::is_primitive(mirror)) { |
duke@435 | 367 | return NULL; |
duke@435 | 368 | } |
duke@435 | 369 | |
duke@435 | 370 | klassOop klass = java_lang_Class::as_klassOop(mirror); |
duke@435 | 371 | if (!Klass::cast(klass)->oop_is_array()) { |
duke@435 | 372 | return NULL; |
duke@435 | 373 | } |
duke@435 | 374 | |
duke@435 | 375 | oop result = arrayKlass::cast(klass)->component_mirror(); |
duke@435 | 376 | #ifdef ASSERT |
duke@435 | 377 | oop result2 = NULL; |
duke@435 | 378 | if (arrayKlass::cast(klass)->dimension() == 1) { |
duke@435 | 379 | if (Klass::cast(klass)->oop_is_typeArray()) { |
duke@435 | 380 | result2 = basic_type_arrayklass_to_mirror(klass, CHECK_NULL); |
duke@435 | 381 | } else { |
duke@435 | 382 | result2 = Klass::cast(objArrayKlass::cast(klass)->element_klass())->java_mirror(); |
duke@435 | 383 | } |
duke@435 | 384 | } else { |
duke@435 | 385 | klassOop lower_dim = arrayKlass::cast(klass)->lower_dimension(); |
duke@435 | 386 | assert(Klass::cast(lower_dim)->oop_is_array(), "just checking"); |
duke@435 | 387 | result2 = Klass::cast(lower_dim)->java_mirror(); |
duke@435 | 388 | } |
duke@435 | 389 | assert(result == result2, "results must be consistent"); |
duke@435 | 390 | #endif //ASSERT |
duke@435 | 391 | return result; |
duke@435 | 392 | } |
duke@435 | 393 | |
duke@435 | 394 | |
duke@435 | 395 | bool Reflection::reflect_check_access(klassOop field_class, AccessFlags acc, klassOop target_class, bool is_method_invoke, TRAPS) { |
duke@435 | 396 | // field_class : declaring class |
duke@435 | 397 | // acc : declared field access |
duke@435 | 398 | // target_class : for protected |
duke@435 | 399 | |
duke@435 | 400 | // Check if field or method is accessible to client. Throw an |
duke@435 | 401 | // IllegalAccessException and return false if not. |
duke@435 | 402 | |
duke@435 | 403 | // The "client" is the class associated with the nearest real frame |
duke@435 | 404 | // getCallerClass already skips Method.invoke frames, so pass 0 in |
duke@435 | 405 | // that case (same as classic). |
duke@435 | 406 | ResourceMark rm(THREAD); |
duke@435 | 407 | assert(THREAD->is_Java_thread(), "sanity check"); |
duke@435 | 408 | klassOop client_class = ((JavaThread *)THREAD)->security_get_caller_class(is_method_invoke ? 0 : 1); |
duke@435 | 409 | |
duke@435 | 410 | if (client_class != field_class) { |
duke@435 | 411 | if (!verify_class_access(client_class, field_class, false) |
duke@435 | 412 | || !verify_field_access(client_class, |
duke@435 | 413 | field_class, |
duke@435 | 414 | field_class, |
duke@435 | 415 | acc, |
duke@435 | 416 | false)) { |
duke@435 | 417 | THROW_(vmSymbols::java_lang_IllegalAccessException(), false); |
duke@435 | 418 | } |
duke@435 | 419 | } |
duke@435 | 420 | |
duke@435 | 421 | // Additional test for protected members: JLS 6.6.2 |
duke@435 | 422 | |
duke@435 | 423 | if (acc.is_protected()) { |
duke@435 | 424 | if (target_class != client_class) { |
duke@435 | 425 | if (!is_same_class_package(client_class, field_class)) { |
duke@435 | 426 | if (!Klass::cast(target_class)->is_subclass_of(client_class)) { |
duke@435 | 427 | THROW_(vmSymbols::java_lang_IllegalAccessException(), false); |
duke@435 | 428 | } |
duke@435 | 429 | } |
duke@435 | 430 | } |
duke@435 | 431 | } |
duke@435 | 432 | |
duke@435 | 433 | // Passed all tests |
duke@435 | 434 | return true; |
duke@435 | 435 | } |
duke@435 | 436 | |
duke@435 | 437 | |
duke@435 | 438 | bool Reflection::verify_class_access(klassOop current_class, klassOop new_class, bool classloader_only) { |
duke@435 | 439 | // Verify that current_class can access new_class. If the classloader_only |
duke@435 | 440 | // flag is set, we automatically allow any accesses in which current_class |
duke@435 | 441 | // doesn't have a classloader. |
duke@435 | 442 | if ((current_class == NULL) || |
duke@435 | 443 | (current_class == new_class) || |
duke@435 | 444 | (instanceKlass::cast(new_class)->is_public()) || |
duke@435 | 445 | is_same_class_package(current_class, new_class)) { |
duke@435 | 446 | return true; |
duke@435 | 447 | } |
duke@435 | 448 | // New (1.4) reflection implementation. Allow all accesses from |
duke@435 | 449 | // sun/reflect/MagicAccessorImpl subclasses to succeed trivially. |
duke@435 | 450 | if ( JDK_Version::is_gte_jdk14x_version() |
duke@435 | 451 | && UseNewReflection |
never@1577 | 452 | && Klass::cast(current_class)->is_subclass_of(SystemDictionary::reflect_MagicAccessorImpl_klass())) { |
duke@435 | 453 | return true; |
duke@435 | 454 | } |
duke@435 | 455 | |
duke@435 | 456 | return can_relax_access_check_for(current_class, new_class, classloader_only); |
duke@435 | 457 | } |
duke@435 | 458 | |
jrose@866 | 459 | static bool under_host_klass(instanceKlass* ik, klassOop host_klass) { |
jrose@866 | 460 | DEBUG_ONLY(int inf_loop_check = 1000 * 1000 * 1000); |
jrose@866 | 461 | for (;;) { |
jrose@866 | 462 | klassOop hc = (klassOop) ik->host_klass(); |
jrose@866 | 463 | if (hc == NULL) return false; |
jrose@866 | 464 | if (hc == host_klass) return true; |
jrose@866 | 465 | ik = instanceKlass::cast(hc); |
jrose@866 | 466 | |
jrose@866 | 467 | // There's no way to make a host class loop short of patching memory. |
jrose@866 | 468 | // Therefore there cannot be a loop here unles there's another bug. |
jrose@866 | 469 | // Still, let's check for it. |
jrose@866 | 470 | assert(--inf_loop_check > 0, "no host_klass loop"); |
jrose@866 | 471 | } |
jrose@866 | 472 | } |
jrose@866 | 473 | |
duke@435 | 474 | bool Reflection::can_relax_access_check_for( |
duke@435 | 475 | klassOop accessor, klassOop accessee, bool classloader_only) { |
duke@435 | 476 | instanceKlass* accessor_ik = instanceKlass::cast(accessor); |
duke@435 | 477 | instanceKlass* accessee_ik = instanceKlass::cast(accessee); |
jrose@866 | 478 | |
jrose@866 | 479 | // If either is on the other's host_klass chain, access is OK, |
jrose@866 | 480 | // because one is inside the other. |
jrose@866 | 481 | if (under_host_klass(accessor_ik, accessee) || |
jrose@866 | 482 | under_host_klass(accessee_ik, accessor)) |
jrose@866 | 483 | return true; |
jrose@866 | 484 | |
twisti@1587 | 485 | // Adapter frames can access anything. |
twisti@1587 | 486 | if (MethodHandleCompiler::klass_is_method_handle_adapter_holder(accessor)) |
twisti@1587 | 487 | // This is an internal adapter frame from the MethodHandleCompiler. |
twisti@1587 | 488 | return true; |
twisti@1587 | 489 | |
duke@435 | 490 | if (RelaxAccessControlCheck || |
duke@435 | 491 | (accessor_ik->major_version() < JAVA_1_5_VERSION && |
duke@435 | 492 | accessee_ik->major_version() < JAVA_1_5_VERSION)) { |
duke@435 | 493 | return classloader_only && |
duke@435 | 494 | Verifier::relax_verify_for(accessor_ik->class_loader()) && |
duke@435 | 495 | accessor_ik->protection_domain() == accessee_ik->protection_domain() && |
duke@435 | 496 | accessor_ik->class_loader() == accessee_ik->class_loader(); |
duke@435 | 497 | } else { |
duke@435 | 498 | return false; |
duke@435 | 499 | } |
duke@435 | 500 | } |
duke@435 | 501 | |
duke@435 | 502 | bool Reflection::verify_field_access(klassOop current_class, |
duke@435 | 503 | klassOop resolved_class, |
duke@435 | 504 | klassOop field_class, |
duke@435 | 505 | AccessFlags access, |
duke@435 | 506 | bool classloader_only, |
duke@435 | 507 | bool protected_restriction) { |
duke@435 | 508 | // Verify that current_class can access a field of field_class, where that |
duke@435 | 509 | // field's access bits are "access". We assume that we've already verified |
duke@435 | 510 | // that current_class can access field_class. |
duke@435 | 511 | // |
duke@435 | 512 | // If the classloader_only flag is set, we automatically allow any accesses |
duke@435 | 513 | // in which current_class doesn't have a classloader. |
duke@435 | 514 | // |
duke@435 | 515 | // "resolved_class" is the runtime type of "field_class". Sometimes we don't |
duke@435 | 516 | // need this distinction (e.g. if all we have is the runtime type, or during |
duke@435 | 517 | // class file parsing when we only care about the static type); in that case |
duke@435 | 518 | // callers should ensure that resolved_class == field_class. |
duke@435 | 519 | // |
duke@435 | 520 | if ((current_class == NULL) || |
duke@435 | 521 | (current_class == field_class) || |
duke@435 | 522 | access.is_public()) { |
duke@435 | 523 | return true; |
duke@435 | 524 | } |
duke@435 | 525 | |
duke@435 | 526 | if (access.is_protected()) { |
duke@435 | 527 | if (!protected_restriction) { |
duke@435 | 528 | // See if current_class is a subclass of field_class |
duke@435 | 529 | if (Klass::cast(current_class)->is_subclass_of(field_class)) { |
kamg@550 | 530 | if (access.is_static() || // static fields are ok, see 6622385 |
kamg@550 | 531 | current_class == resolved_class || |
duke@435 | 532 | field_class == resolved_class || |
duke@435 | 533 | Klass::cast(current_class)->is_subclass_of(resolved_class) || |
duke@435 | 534 | Klass::cast(resolved_class)->is_subclass_of(current_class)) { |
duke@435 | 535 | return true; |
duke@435 | 536 | } |
duke@435 | 537 | } |
duke@435 | 538 | } |
duke@435 | 539 | } |
duke@435 | 540 | |
duke@435 | 541 | if (!access.is_private() && is_same_class_package(current_class, field_class)) { |
duke@435 | 542 | return true; |
duke@435 | 543 | } |
duke@435 | 544 | |
duke@435 | 545 | // New (1.4) reflection implementation. Allow all accesses from |
duke@435 | 546 | // sun/reflect/MagicAccessorImpl subclasses to succeed trivially. |
duke@435 | 547 | if ( JDK_Version::is_gte_jdk14x_version() |
duke@435 | 548 | && UseNewReflection |
never@1577 | 549 | && Klass::cast(current_class)->is_subclass_of(SystemDictionary::reflect_MagicAccessorImpl_klass())) { |
duke@435 | 550 | return true; |
duke@435 | 551 | } |
duke@435 | 552 | |
duke@435 | 553 | return can_relax_access_check_for( |
duke@435 | 554 | current_class, field_class, classloader_only); |
duke@435 | 555 | } |
duke@435 | 556 | |
duke@435 | 557 | |
duke@435 | 558 | bool Reflection::is_same_class_package(klassOop class1, klassOop class2) { |
duke@435 | 559 | return instanceKlass::cast(class1)->is_same_class_package(class2); |
duke@435 | 560 | } |
duke@435 | 561 | |
jrose@1100 | 562 | bool Reflection::is_same_package_member(klassOop class1, klassOop class2, TRAPS) { |
jrose@1100 | 563 | return instanceKlass::cast(class1)->is_same_package_member(class2, THREAD); |
jrose@1100 | 564 | } |
jrose@1100 | 565 | |
duke@435 | 566 | |
duke@435 | 567 | // Checks that the 'outer' klass has declared 'inner' as being an inner klass. If not, |
duke@435 | 568 | // throw an incompatible class change exception |
jrose@1100 | 569 | // If inner_is_member, require the inner to be a member of the outer. |
jrose@1100 | 570 | // If !inner_is_member, require the inner to be anonymous (a non-member). |
jrose@1100 | 571 | // Caller is responsible for figuring out in advance which case must be true. |
jrose@1100 | 572 | void Reflection::check_for_inner_class(instanceKlassHandle outer, instanceKlassHandle inner, |
jrose@1100 | 573 | bool inner_is_member, TRAPS) { |
duke@435 | 574 | const int inner_class_info_index = 0; |
duke@435 | 575 | const int outer_class_info_index = 1; |
duke@435 | 576 | |
duke@435 | 577 | typeArrayHandle icls (THREAD, outer->inner_classes()); |
duke@435 | 578 | constantPoolHandle cp (THREAD, outer->constants()); |
duke@435 | 579 | for(int i = 0; i < icls->length(); i += 4) { |
duke@435 | 580 | int ioff = icls->ushort_at(i + inner_class_info_index); |
duke@435 | 581 | int ooff = icls->ushort_at(i + outer_class_info_index); |
duke@435 | 582 | |
jrose@1100 | 583 | if (inner_is_member && ioff != 0 && ooff != 0) { |
duke@435 | 584 | klassOop o = cp->klass_at(ooff, CHECK); |
duke@435 | 585 | if (o == outer()) { |
duke@435 | 586 | klassOop i = cp->klass_at(ioff, CHECK); |
duke@435 | 587 | if (i == inner()) { |
duke@435 | 588 | return; |
duke@435 | 589 | } |
duke@435 | 590 | } |
duke@435 | 591 | } |
jrose@1100 | 592 | if (!inner_is_member && ioff != 0 && ooff == 0 && |
jrose@1100 | 593 | cp->klass_name_at_matches(inner, ioff)) { |
jrose@1100 | 594 | klassOop i = cp->klass_at(ioff, CHECK); |
jrose@1100 | 595 | if (i == inner()) { |
jrose@1100 | 596 | return; |
jrose@1100 | 597 | } |
jrose@1100 | 598 | } |
duke@435 | 599 | } |
duke@435 | 600 | |
duke@435 | 601 | // 'inner' not declared as an inner klass in outer |
duke@435 | 602 | ResourceMark rm(THREAD); |
duke@435 | 603 | Exceptions::fthrow( |
duke@435 | 604 | THREAD_AND_LOCATION, |
duke@435 | 605 | vmSymbolHandles::java_lang_IncompatibleClassChangeError(), |
duke@435 | 606 | "%s and %s disagree on InnerClasses attribute", |
duke@435 | 607 | outer->external_name(), |
duke@435 | 608 | inner->external_name() |
duke@435 | 609 | ); |
duke@435 | 610 | } |
duke@435 | 611 | |
duke@435 | 612 | // Utility method converting a single SignatureStream element into java.lang.Class instance |
duke@435 | 613 | |
duke@435 | 614 | oop get_mirror_from_signature(methodHandle method, SignatureStream* ss, TRAPS) { |
duke@435 | 615 | switch (ss->type()) { |
duke@435 | 616 | default: |
duke@435 | 617 | assert(ss->type() != T_VOID || ss->at_return_type(), "T_VOID should only appear as return type"); |
duke@435 | 618 | return java_lang_Class::primitive_mirror(ss->type()); |
duke@435 | 619 | case T_OBJECT: |
duke@435 | 620 | case T_ARRAY: |
duke@435 | 621 | symbolOop name = ss->as_symbol(CHECK_NULL); |
duke@435 | 622 | oop loader = instanceKlass::cast(method->method_holder())->class_loader(); |
duke@435 | 623 | oop protection_domain = instanceKlass::cast(method->method_holder())->protection_domain(); |
duke@435 | 624 | klassOop k = SystemDictionary::resolve_or_fail( |
duke@435 | 625 | symbolHandle(THREAD, name), |
duke@435 | 626 | Handle(THREAD, loader), |
duke@435 | 627 | Handle(THREAD, protection_domain), |
duke@435 | 628 | true, CHECK_NULL); |
duke@435 | 629 | if (TraceClassResolution) { |
duke@435 | 630 | trace_class_resolution(k); |
duke@435 | 631 | } |
duke@435 | 632 | return k->klass_part()->java_mirror(); |
duke@435 | 633 | }; |
duke@435 | 634 | } |
duke@435 | 635 | |
duke@435 | 636 | |
duke@435 | 637 | objArrayHandle Reflection::get_parameter_types(methodHandle method, int parameter_count, oop* return_type, TRAPS) { |
duke@435 | 638 | // Allocate array holding parameter types (java.lang.Class instances) |
never@1577 | 639 | objArrayOop m = oopFactory::new_objArray(SystemDictionary::Class_klass(), parameter_count, CHECK_(objArrayHandle())); |
duke@435 | 640 | objArrayHandle mirrors (THREAD, m); |
duke@435 | 641 | int index = 0; |
duke@435 | 642 | // Collect parameter types |
duke@435 | 643 | symbolHandle signature (THREAD, method->signature()); |
duke@435 | 644 | SignatureStream ss(signature); |
duke@435 | 645 | while (!ss.at_return_type()) { |
duke@435 | 646 | oop mirror = get_mirror_from_signature(method, &ss, CHECK_(objArrayHandle())); |
duke@435 | 647 | mirrors->obj_at_put(index++, mirror); |
duke@435 | 648 | ss.next(); |
duke@435 | 649 | } |
duke@435 | 650 | assert(index == parameter_count, "invalid parameter count"); |
duke@435 | 651 | if (return_type != NULL) { |
duke@435 | 652 | // Collect return type as well |
duke@435 | 653 | assert(ss.at_return_type(), "return type should be present"); |
duke@435 | 654 | *return_type = get_mirror_from_signature(method, &ss, CHECK_(objArrayHandle())); |
duke@435 | 655 | } |
duke@435 | 656 | return mirrors; |
duke@435 | 657 | } |
duke@435 | 658 | |
duke@435 | 659 | objArrayHandle Reflection::get_exception_types(methodHandle method, TRAPS) { |
duke@435 | 660 | return method->resolved_checked_exceptions(CHECK_(objArrayHandle())); |
duke@435 | 661 | } |
duke@435 | 662 | |
duke@435 | 663 | |
duke@435 | 664 | Handle Reflection::new_type(symbolHandle signature, KlassHandle k, TRAPS) { |
duke@435 | 665 | // Basic types |
duke@435 | 666 | BasicType type = vmSymbols::signature_type(signature()); |
duke@435 | 667 | if (type != T_OBJECT) { |
duke@435 | 668 | return Handle(THREAD, Universe::java_mirror(type)); |
duke@435 | 669 | } |
duke@435 | 670 | |
duke@435 | 671 | oop loader = instanceKlass::cast(k())->class_loader(); |
duke@435 | 672 | oop protection_domain = Klass::cast(k())->protection_domain(); |
duke@435 | 673 | klassOop result = SystemDictionary::resolve_or_fail(signature, |
duke@435 | 674 | Handle(THREAD, loader), |
duke@435 | 675 | Handle(THREAD, protection_domain), |
duke@435 | 676 | true, CHECK_(Handle())); |
duke@435 | 677 | |
duke@435 | 678 | if (TraceClassResolution) { |
duke@435 | 679 | trace_class_resolution(result); |
duke@435 | 680 | } |
duke@435 | 681 | |
duke@435 | 682 | oop nt = Klass::cast(result)->java_mirror(); |
duke@435 | 683 | return Handle(THREAD, nt); |
duke@435 | 684 | } |
duke@435 | 685 | |
duke@435 | 686 | |
duke@435 | 687 | oop Reflection::new_method(methodHandle method, bool intern_name, bool for_constant_pool_access, TRAPS) { |
duke@435 | 688 | // In jdk1.2.x, getMethods on an interface erroneously includes <clinit>, thus the complicated assert. |
duke@435 | 689 | // Also allow sun.reflect.ConstantPool to refer to <clinit> methods as java.lang.reflect.Methods. |
duke@435 | 690 | assert(!method()->is_initializer() || |
duke@435 | 691 | (for_constant_pool_access && method()->is_static()) || |
duke@435 | 692 | (method()->name() == vmSymbols::class_initializer_name() |
duke@435 | 693 | && Klass::cast(method()->method_holder())->is_interface() && JDK_Version::is_jdk12x_version()), "should call new_constructor instead"); |
duke@435 | 694 | instanceKlassHandle holder (THREAD, method->method_holder()); |
duke@435 | 695 | int slot = method->method_idnum(); |
duke@435 | 696 | |
duke@435 | 697 | symbolHandle signature (THREAD, method->signature()); |
duke@435 | 698 | int parameter_count = ArgumentCount(signature).size(); |
duke@435 | 699 | oop return_type_oop = NULL; |
duke@435 | 700 | objArrayHandle parameter_types = get_parameter_types(method, parameter_count, &return_type_oop, CHECK_NULL); |
duke@435 | 701 | if (parameter_types.is_null() || return_type_oop == NULL) return NULL; |
duke@435 | 702 | |
duke@435 | 703 | Handle return_type(THREAD, return_type_oop); |
duke@435 | 704 | |
duke@435 | 705 | objArrayHandle exception_types = get_exception_types(method, CHECK_NULL); |
duke@435 | 706 | |
duke@435 | 707 | if (exception_types.is_null()) return NULL; |
duke@435 | 708 | |
duke@435 | 709 | symbolHandle method_name(THREAD, method->name()); |
duke@435 | 710 | Handle name; |
duke@435 | 711 | if (intern_name) { |
duke@435 | 712 | // intern_name is only true with UseNewReflection |
duke@435 | 713 | oop name_oop = StringTable::intern(method_name(), CHECK_NULL); |
duke@435 | 714 | name = Handle(THREAD, name_oop); |
duke@435 | 715 | } else { |
duke@435 | 716 | name = java_lang_String::create_from_symbol(method_name, CHECK_NULL); |
duke@435 | 717 | } |
duke@435 | 718 | if (name.is_null()) return NULL; |
duke@435 | 719 | |
duke@435 | 720 | int modifiers = method->access_flags().as_int() & JVM_RECOGNIZED_METHOD_MODIFIERS; |
duke@435 | 721 | |
duke@435 | 722 | Handle mh = java_lang_reflect_Method::create(CHECK_NULL); |
duke@435 | 723 | |
duke@435 | 724 | java_lang_reflect_Method::set_clazz(mh(), holder->java_mirror()); |
duke@435 | 725 | java_lang_reflect_Method::set_slot(mh(), slot); |
duke@435 | 726 | java_lang_reflect_Method::set_name(mh(), name()); |
duke@435 | 727 | java_lang_reflect_Method::set_return_type(mh(), return_type()); |
duke@435 | 728 | java_lang_reflect_Method::set_parameter_types(mh(), parameter_types()); |
duke@435 | 729 | java_lang_reflect_Method::set_exception_types(mh(), exception_types()); |
duke@435 | 730 | java_lang_reflect_Method::set_modifiers(mh(), modifiers); |
duke@435 | 731 | java_lang_reflect_Method::set_override(mh(), false); |
duke@435 | 732 | if (java_lang_reflect_Method::has_signature_field() && |
duke@435 | 733 | method->generic_signature() != NULL) { |
duke@435 | 734 | symbolHandle gs(THREAD, method->generic_signature()); |
duke@435 | 735 | Handle sig = java_lang_String::create_from_symbol(gs, CHECK_NULL); |
duke@435 | 736 | java_lang_reflect_Method::set_signature(mh(), sig()); |
duke@435 | 737 | } |
duke@435 | 738 | if (java_lang_reflect_Method::has_annotations_field()) { |
duke@435 | 739 | java_lang_reflect_Method::set_annotations(mh(), method->annotations()); |
duke@435 | 740 | } |
duke@435 | 741 | if (java_lang_reflect_Method::has_parameter_annotations_field()) { |
duke@435 | 742 | java_lang_reflect_Method::set_parameter_annotations(mh(), method->parameter_annotations()); |
duke@435 | 743 | } |
duke@435 | 744 | if (java_lang_reflect_Method::has_annotation_default_field()) { |
duke@435 | 745 | java_lang_reflect_Method::set_annotation_default(mh(), method->annotation_default()); |
duke@435 | 746 | } |
duke@435 | 747 | return mh(); |
duke@435 | 748 | } |
duke@435 | 749 | |
duke@435 | 750 | |
duke@435 | 751 | oop Reflection::new_constructor(methodHandle method, TRAPS) { |
duke@435 | 752 | assert(method()->is_initializer(), "should call new_method instead"); |
duke@435 | 753 | |
duke@435 | 754 | instanceKlassHandle holder (THREAD, method->method_holder()); |
duke@435 | 755 | int slot = method->method_idnum(); |
duke@435 | 756 | |
duke@435 | 757 | symbolHandle signature (THREAD, method->signature()); |
duke@435 | 758 | int parameter_count = ArgumentCount(signature).size(); |
duke@435 | 759 | objArrayHandle parameter_types = get_parameter_types(method, parameter_count, NULL, CHECK_NULL); |
duke@435 | 760 | if (parameter_types.is_null()) return NULL; |
duke@435 | 761 | |
duke@435 | 762 | objArrayHandle exception_types = get_exception_types(method, CHECK_NULL); |
duke@435 | 763 | if (exception_types.is_null()) return NULL; |
duke@435 | 764 | |
duke@435 | 765 | int modifiers = method->access_flags().as_int() & JVM_RECOGNIZED_METHOD_MODIFIERS; |
duke@435 | 766 | |
duke@435 | 767 | Handle ch = java_lang_reflect_Constructor::create(CHECK_NULL); |
duke@435 | 768 | |
duke@435 | 769 | java_lang_reflect_Constructor::set_clazz(ch(), holder->java_mirror()); |
duke@435 | 770 | java_lang_reflect_Constructor::set_slot(ch(), slot); |
duke@435 | 771 | java_lang_reflect_Constructor::set_parameter_types(ch(), parameter_types()); |
duke@435 | 772 | java_lang_reflect_Constructor::set_exception_types(ch(), exception_types()); |
duke@435 | 773 | java_lang_reflect_Constructor::set_modifiers(ch(), modifiers); |
duke@435 | 774 | java_lang_reflect_Constructor::set_override(ch(), false); |
duke@435 | 775 | if (java_lang_reflect_Constructor::has_signature_field() && |
duke@435 | 776 | method->generic_signature() != NULL) { |
duke@435 | 777 | symbolHandle gs(THREAD, method->generic_signature()); |
duke@435 | 778 | Handle sig = java_lang_String::create_from_symbol(gs, CHECK_NULL); |
duke@435 | 779 | java_lang_reflect_Constructor::set_signature(ch(), sig()); |
duke@435 | 780 | } |
duke@435 | 781 | if (java_lang_reflect_Constructor::has_annotations_field()) { |
duke@435 | 782 | java_lang_reflect_Constructor::set_annotations(ch(), method->annotations()); |
duke@435 | 783 | } |
duke@435 | 784 | if (java_lang_reflect_Constructor::has_parameter_annotations_field()) { |
duke@435 | 785 | java_lang_reflect_Constructor::set_parameter_annotations(ch(), method->parameter_annotations()); |
duke@435 | 786 | } |
duke@435 | 787 | return ch(); |
duke@435 | 788 | } |
duke@435 | 789 | |
duke@435 | 790 | |
duke@435 | 791 | oop Reflection::new_field(fieldDescriptor* fd, bool intern_name, TRAPS) { |
duke@435 | 792 | symbolHandle field_name(THREAD, fd->name()); |
duke@435 | 793 | Handle name; |
duke@435 | 794 | if (intern_name) { |
duke@435 | 795 | // intern_name is only true with UseNewReflection |
duke@435 | 796 | oop name_oop = StringTable::intern(field_name(), CHECK_NULL); |
duke@435 | 797 | name = Handle(THREAD, name_oop); |
duke@435 | 798 | } else { |
duke@435 | 799 | name = java_lang_String::create_from_symbol(field_name, CHECK_NULL); |
duke@435 | 800 | } |
duke@435 | 801 | symbolHandle signature (THREAD, fd->signature()); |
duke@435 | 802 | KlassHandle holder (THREAD, fd->field_holder()); |
duke@435 | 803 | Handle type = new_type(signature, holder, CHECK_NULL); |
duke@435 | 804 | Handle rh = java_lang_reflect_Field::create(CHECK_NULL); |
duke@435 | 805 | |
duke@435 | 806 | java_lang_reflect_Field::set_clazz(rh(), Klass::cast(fd->field_holder())->java_mirror()); |
duke@435 | 807 | java_lang_reflect_Field::set_slot(rh(), fd->index()); |
duke@435 | 808 | java_lang_reflect_Field::set_name(rh(), name()); |
duke@435 | 809 | java_lang_reflect_Field::set_type(rh(), type()); |
duke@435 | 810 | // Note the ACC_ANNOTATION bit, which is a per-class access flag, is never set here. |
duke@435 | 811 | java_lang_reflect_Field::set_modifiers(rh(), fd->access_flags().as_int() & JVM_RECOGNIZED_FIELD_MODIFIERS); |
duke@435 | 812 | java_lang_reflect_Field::set_override(rh(), false); |
duke@435 | 813 | if (java_lang_reflect_Field::has_signature_field() && |
duke@435 | 814 | fd->generic_signature() != NULL) { |
duke@435 | 815 | symbolHandle gs(THREAD, fd->generic_signature()); |
duke@435 | 816 | Handle sig = java_lang_String::create_from_symbol(gs, CHECK_NULL); |
duke@435 | 817 | java_lang_reflect_Field::set_signature(rh(), sig()); |
duke@435 | 818 | } |
duke@435 | 819 | if (java_lang_reflect_Field::has_annotations_field()) { |
duke@435 | 820 | java_lang_reflect_Field::set_annotations(rh(), fd->annotations()); |
duke@435 | 821 | } |
duke@435 | 822 | return rh(); |
duke@435 | 823 | } |
duke@435 | 824 | |
duke@435 | 825 | |
duke@435 | 826 | //--------------------------------------------------------------------------- |
duke@435 | 827 | // |
duke@435 | 828 | // Supporting routines for old native code-based reflection (pre-JDK 1.4). |
duke@435 | 829 | // |
duke@435 | 830 | // See reflection.hpp for details. |
duke@435 | 831 | // |
duke@435 | 832 | //--------------------------------------------------------------------------- |
duke@435 | 833 | |
duke@435 | 834 | #ifdef SUPPORT_OLD_REFLECTION |
duke@435 | 835 | |
duke@435 | 836 | methodHandle Reflection::resolve_interface_call(instanceKlassHandle klass, methodHandle method, |
duke@435 | 837 | KlassHandle recv_klass, Handle receiver, TRAPS) { |
duke@435 | 838 | assert(!method.is_null() , "method should not be null"); |
duke@435 | 839 | |
duke@435 | 840 | CallInfo info; |
duke@435 | 841 | symbolHandle signature (THREAD, method->signature()); |
duke@435 | 842 | symbolHandle name (THREAD, method->name()); |
duke@435 | 843 | LinkResolver::resolve_interface_call(info, receiver, recv_klass, klass, |
duke@435 | 844 | name, signature, |
duke@435 | 845 | KlassHandle(), false, true, |
duke@435 | 846 | CHECK_(methodHandle())); |
duke@435 | 847 | return info.selected_method(); |
duke@435 | 848 | } |
duke@435 | 849 | |
duke@435 | 850 | |
duke@435 | 851 | oop Reflection::invoke(instanceKlassHandle klass, methodHandle reflected_method, |
duke@435 | 852 | Handle receiver, bool override, objArrayHandle ptypes, |
duke@435 | 853 | BasicType rtype, objArrayHandle args, bool is_method_invoke, TRAPS) { |
duke@435 | 854 | ResourceMark rm(THREAD); |
duke@435 | 855 | |
duke@435 | 856 | methodHandle method; // actual method to invoke |
duke@435 | 857 | KlassHandle target_klass; // target klass, receiver's klass for non-static |
duke@435 | 858 | |
duke@435 | 859 | // Ensure klass is initialized |
duke@435 | 860 | klass->initialize(CHECK_NULL); |
duke@435 | 861 | |
duke@435 | 862 | bool is_static = reflected_method->is_static(); |
duke@435 | 863 | if (is_static) { |
duke@435 | 864 | // ignore receiver argument |
duke@435 | 865 | method = reflected_method; |
duke@435 | 866 | target_klass = klass; |
duke@435 | 867 | } else { |
duke@435 | 868 | // check for null receiver |
duke@435 | 869 | if (receiver.is_null()) { |
duke@435 | 870 | THROW_0(vmSymbols::java_lang_NullPointerException()); |
duke@435 | 871 | } |
duke@435 | 872 | // Check class of receiver against class declaring method |
duke@435 | 873 | if (!receiver->is_a(klass())) { |
duke@435 | 874 | THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "object is not an instance of declaring class"); |
duke@435 | 875 | } |
duke@435 | 876 | // target klass is receiver's klass |
duke@435 | 877 | target_klass = KlassHandle(THREAD, receiver->klass()); |
duke@435 | 878 | // no need to resolve if method is private or <init> |
duke@435 | 879 | if (reflected_method->is_private() || reflected_method->name() == vmSymbols::object_initializer_name()) { |
duke@435 | 880 | method = reflected_method; |
duke@435 | 881 | } else { |
duke@435 | 882 | // resolve based on the receiver |
duke@435 | 883 | if (instanceKlass::cast(reflected_method->method_holder())->is_interface()) { |
duke@435 | 884 | // resolve interface call |
duke@435 | 885 | if (ReflectionWrapResolutionErrors) { |
duke@435 | 886 | // new default: 6531596 |
duke@435 | 887 | // Match resolution errors with those thrown due to reflection inlining |
duke@435 | 888 | // Linktime resolution & IllegalAccessCheck already done by Class.getMethod() |
duke@435 | 889 | method = resolve_interface_call(klass, reflected_method, target_klass, receiver, THREAD); |
duke@435 | 890 | if (HAS_PENDING_EXCEPTION) { |
duke@435 | 891 | // Method resolution threw an exception; wrap it in an InvocationTargetException |
duke@435 | 892 | oop resolution_exception = PENDING_EXCEPTION; |
duke@435 | 893 | CLEAR_PENDING_EXCEPTION; |
duke@435 | 894 | JavaCallArguments args(Handle(THREAD, resolution_exception)); |
duke@435 | 895 | THROW_ARG_0(vmSymbolHandles::java_lang_reflect_InvocationTargetException(), |
duke@435 | 896 | vmSymbolHandles::throwable_void_signature(), |
duke@435 | 897 | &args); |
duke@435 | 898 | } |
duke@435 | 899 | } else { |
duke@435 | 900 | method = resolve_interface_call(klass, reflected_method, target_klass, receiver, CHECK_(NULL)); |
duke@435 | 901 | } |
duke@435 | 902 | } else { |
duke@435 | 903 | // if the method can be overridden, we resolve using the vtable index. |
duke@435 | 904 | int index = reflected_method->vtable_index(); |
duke@435 | 905 | method = reflected_method; |
duke@435 | 906 | if (index != methodOopDesc::nonvirtual_vtable_index) { |
duke@435 | 907 | // target_klass might be an arrayKlassOop but all vtables start at |
duke@435 | 908 | // the same place. The cast is to avoid virtual call and assertion. |
duke@435 | 909 | instanceKlass* inst = (instanceKlass*)target_klass()->klass_part(); |
duke@435 | 910 | method = methodHandle(THREAD, inst->method_at_vtable(index)); |
duke@435 | 911 | } |
duke@435 | 912 | if (!method.is_null()) { |
duke@435 | 913 | // Check for abstract methods as well |
duke@435 | 914 | if (method->is_abstract()) { |
duke@435 | 915 | // new default: 6531596 |
duke@435 | 916 | if (ReflectionWrapResolutionErrors) { |
duke@435 | 917 | ResourceMark rm(THREAD); |
duke@435 | 918 | Handle h_origexception = Exceptions::new_exception(THREAD, |
duke@435 | 919 | vmSymbols::java_lang_AbstractMethodError(), |
duke@435 | 920 | methodOopDesc::name_and_sig_as_C_string(Klass::cast(target_klass()), |
duke@435 | 921 | method->name(), |
duke@435 | 922 | method->signature())); |
duke@435 | 923 | JavaCallArguments args(h_origexception); |
duke@435 | 924 | THROW_ARG_0(vmSymbolHandles::java_lang_reflect_InvocationTargetException(), |
duke@435 | 925 | vmSymbolHandles::throwable_void_signature(), |
duke@435 | 926 | &args); |
duke@435 | 927 | } else { |
duke@435 | 928 | ResourceMark rm(THREAD); |
duke@435 | 929 | THROW_MSG_0(vmSymbols::java_lang_AbstractMethodError(), |
duke@435 | 930 | methodOopDesc::name_and_sig_as_C_string(Klass::cast(target_klass()), |
duke@435 | 931 | method->name(), |
duke@435 | 932 | method->signature())); |
duke@435 | 933 | } |
duke@435 | 934 | } |
duke@435 | 935 | } |
duke@435 | 936 | } |
duke@435 | 937 | } |
duke@435 | 938 | } |
duke@435 | 939 | |
duke@435 | 940 | // I believe this is a ShouldNotGetHere case which requires |
duke@435 | 941 | // an internal vtable bug. If you ever get this please let Karen know. |
duke@435 | 942 | if (method.is_null()) { |
duke@435 | 943 | ResourceMark rm(THREAD); |
duke@435 | 944 | THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), |
duke@435 | 945 | methodOopDesc::name_and_sig_as_C_string(Klass::cast(klass()), |
duke@435 | 946 | reflected_method->name(), |
duke@435 | 947 | reflected_method->signature())); |
duke@435 | 948 | } |
duke@435 | 949 | |
duke@435 | 950 | // In the JDK 1.4 reflection implementation, the security check is |
duke@435 | 951 | // done at the Java level |
duke@435 | 952 | if (!(JDK_Version::is_gte_jdk14x_version() && UseNewReflection)) { |
duke@435 | 953 | |
duke@435 | 954 | // Access checking (unless overridden by Method) |
duke@435 | 955 | if (!override) { |
duke@435 | 956 | if (!(klass->is_public() && reflected_method->is_public())) { |
duke@435 | 957 | bool access = Reflection::reflect_check_access(klass(), reflected_method->access_flags(), target_klass(), is_method_invoke, CHECK_NULL); |
duke@435 | 958 | if (!access) { |
duke@435 | 959 | return NULL; // exception |
duke@435 | 960 | } |
duke@435 | 961 | } |
duke@435 | 962 | } |
duke@435 | 963 | |
duke@435 | 964 | } // !(Universe::is_gte_jdk14x_version() && UseNewReflection) |
duke@435 | 965 | |
duke@435 | 966 | assert(ptypes->is_objArray(), "just checking"); |
duke@435 | 967 | int args_len = args.is_null() ? 0 : args->length(); |
duke@435 | 968 | // Check number of arguments |
duke@435 | 969 | if (ptypes->length() != args_len) { |
duke@435 | 970 | THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "wrong number of arguments"); |
duke@435 | 971 | } |
duke@435 | 972 | |
duke@435 | 973 | // Create object to contain parameters for the JavaCall |
duke@435 | 974 | JavaCallArguments java_args(method->size_of_parameters()); |
duke@435 | 975 | |
duke@435 | 976 | if (!is_static) { |
duke@435 | 977 | java_args.push_oop(receiver); |
duke@435 | 978 | } |
duke@435 | 979 | |
duke@435 | 980 | for (int i = 0; i < args_len; i++) { |
duke@435 | 981 | oop type_mirror = ptypes->obj_at(i); |
duke@435 | 982 | oop arg = args->obj_at(i); |
duke@435 | 983 | if (java_lang_Class::is_primitive(type_mirror)) { |
duke@435 | 984 | jvalue value; |
duke@435 | 985 | BasicType ptype = basic_type_mirror_to_basic_type(type_mirror, CHECK_NULL); |
duke@435 | 986 | BasicType atype = unbox_for_primitive(arg, &value, CHECK_NULL); |
duke@435 | 987 | if (ptype != atype) { |
duke@435 | 988 | widen(&value, atype, ptype, CHECK_NULL); |
duke@435 | 989 | } |
duke@435 | 990 | switch (ptype) { |
duke@435 | 991 | case T_BOOLEAN: java_args.push_int(value.z); break; |
duke@435 | 992 | case T_CHAR: java_args.push_int(value.c); break; |
duke@435 | 993 | case T_BYTE: java_args.push_int(value.b); break; |
duke@435 | 994 | case T_SHORT: java_args.push_int(value.s); break; |
duke@435 | 995 | case T_INT: java_args.push_int(value.i); break; |
duke@435 | 996 | case T_LONG: java_args.push_long(value.j); break; |
duke@435 | 997 | case T_FLOAT: java_args.push_float(value.f); break; |
duke@435 | 998 | case T_DOUBLE: java_args.push_double(value.d); break; |
duke@435 | 999 | default: |
duke@435 | 1000 | THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "argument type mismatch"); |
duke@435 | 1001 | } |
duke@435 | 1002 | } else { |
duke@435 | 1003 | if (arg != NULL) { |
duke@435 | 1004 | klassOop k = java_lang_Class::as_klassOop(type_mirror); |
duke@435 | 1005 | if (!arg->is_a(k)) { |
duke@435 | 1006 | THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "argument type mismatch"); |
duke@435 | 1007 | } |
duke@435 | 1008 | } |
duke@435 | 1009 | Handle arg_handle(THREAD, arg); // Create handle for argument |
duke@435 | 1010 | java_args.push_oop(arg_handle); // Push handle |
duke@435 | 1011 | } |
duke@435 | 1012 | } |
duke@435 | 1013 | |
duke@435 | 1014 | assert(java_args.size_of_parameters() == method->size_of_parameters(), "just checking"); |
duke@435 | 1015 | |
duke@435 | 1016 | // All oops (including receiver) is passed in as Handles. An potential oop is returned as an |
duke@435 | 1017 | // oop (i.e., NOT as an handle) |
duke@435 | 1018 | JavaValue result(rtype); |
duke@435 | 1019 | JavaCalls::call(&result, method, &java_args, THREAD); |
duke@435 | 1020 | |
duke@435 | 1021 | if (HAS_PENDING_EXCEPTION) { |
duke@435 | 1022 | // Method threw an exception; wrap it in an InvocationTargetException |
duke@435 | 1023 | oop target_exception = PENDING_EXCEPTION; |
duke@435 | 1024 | CLEAR_PENDING_EXCEPTION; |
duke@435 | 1025 | JavaCallArguments args(Handle(THREAD, target_exception)); |
duke@435 | 1026 | THROW_ARG_0(vmSymbolHandles::java_lang_reflect_InvocationTargetException(), |
duke@435 | 1027 | vmSymbolHandles::throwable_void_signature(), |
duke@435 | 1028 | &args); |
duke@435 | 1029 | } else { |
duke@435 | 1030 | if (rtype == T_BOOLEAN || rtype == T_BYTE || rtype == T_CHAR || rtype == T_SHORT) |
duke@435 | 1031 | narrow((jvalue*) result.get_value_addr(), rtype, CHECK_NULL); |
duke@435 | 1032 | return box((jvalue*) result.get_value_addr(), rtype, CHECK_NULL); |
duke@435 | 1033 | } |
duke@435 | 1034 | } |
duke@435 | 1035 | |
duke@435 | 1036 | |
duke@435 | 1037 | void Reflection::narrow(jvalue* value, BasicType narrow_type, TRAPS) { |
duke@435 | 1038 | switch (narrow_type) { |
duke@435 | 1039 | case T_BOOLEAN: |
duke@435 | 1040 | value->z = (jboolean) value->i; |
duke@435 | 1041 | return; |
duke@435 | 1042 | case T_BYTE: |
duke@435 | 1043 | value->b = (jbyte) value->i; |
duke@435 | 1044 | return; |
duke@435 | 1045 | case T_CHAR: |
duke@435 | 1046 | value->c = (jchar) value->i; |
duke@435 | 1047 | return; |
duke@435 | 1048 | case T_SHORT: |
duke@435 | 1049 | value->s = (jshort) value->i; |
duke@435 | 1050 | return; |
duke@435 | 1051 | default: |
duke@435 | 1052 | break; // fail |
duke@435 | 1053 | } |
duke@435 | 1054 | THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), "argument type mismatch"); |
duke@435 | 1055 | } |
duke@435 | 1056 | |
duke@435 | 1057 | |
duke@435 | 1058 | BasicType Reflection::basic_type_mirror_to_basic_type(oop basic_type_mirror, TRAPS) { |
duke@435 | 1059 | assert(java_lang_Class::is_primitive(basic_type_mirror), "just checking"); |
duke@435 | 1060 | return java_lang_Class::primitive_type(basic_type_mirror); |
duke@435 | 1061 | } |
duke@435 | 1062 | |
duke@435 | 1063 | |
duke@435 | 1064 | bool Reflection::match_parameter_types(methodHandle method, objArrayHandle types, int parameter_count, TRAPS) { |
duke@435 | 1065 | int types_len = types.is_null() ? 0 : types->length(); |
duke@435 | 1066 | if (types_len != parameter_count) return false; |
duke@435 | 1067 | if (parameter_count > 0) { |
duke@435 | 1068 | objArrayHandle method_types = get_parameter_types(method, parameter_count, NULL, CHECK_false); |
duke@435 | 1069 | for (int index = 0; index < parameter_count; index++) { |
duke@435 | 1070 | if (types->obj_at(index) != method_types->obj_at(index)) { |
duke@435 | 1071 | return false; |
duke@435 | 1072 | } |
duke@435 | 1073 | } |
duke@435 | 1074 | } |
duke@435 | 1075 | return true; |
duke@435 | 1076 | } |
duke@435 | 1077 | |
duke@435 | 1078 | |
duke@435 | 1079 | oop Reflection::new_field(FieldStream* st, TRAPS) { |
duke@435 | 1080 | symbolHandle field_name(THREAD, st->name()); |
duke@435 | 1081 | Handle name = java_lang_String::create_from_symbol(field_name, CHECK_NULL); |
duke@435 | 1082 | symbolHandle signature(THREAD, st->signature()); |
duke@435 | 1083 | Handle type = new_type(signature, st->klass(), CHECK_NULL); |
duke@435 | 1084 | Handle rh = java_lang_reflect_Field::create(CHECK_NULL); |
duke@435 | 1085 | oop result = rh(); |
duke@435 | 1086 | |
duke@435 | 1087 | java_lang_reflect_Field::set_clazz(result, st->klass()->java_mirror()); |
duke@435 | 1088 | java_lang_reflect_Field::set_slot(result, st->index()); |
duke@435 | 1089 | java_lang_reflect_Field::set_name(result, name()); |
duke@435 | 1090 | java_lang_reflect_Field::set_type(result, type()); |
duke@435 | 1091 | // Note the ACC_ANNOTATION bit, which is a per-class access flag, is never set here. |
duke@435 | 1092 | java_lang_reflect_Field::set_modifiers(result, st->access_flags().as_int() & JVM_RECOGNIZED_FIELD_MODIFIERS); |
duke@435 | 1093 | java_lang_reflect_Field::set_override(result, false); |
duke@435 | 1094 | return result; |
duke@435 | 1095 | } |
duke@435 | 1096 | |
duke@435 | 1097 | |
duke@435 | 1098 | bool Reflection::resolve_field(Handle field_mirror, Handle& receiver, fieldDescriptor* fd, bool check_final, TRAPS) { |
duke@435 | 1099 | if (field_mirror.is_null()) { |
duke@435 | 1100 | THROW_(vmSymbols::java_lang_NullPointerException(), false); |
duke@435 | 1101 | } |
duke@435 | 1102 | |
duke@435 | 1103 | instanceKlassHandle klass (THREAD, java_lang_Class::as_klassOop(java_lang_reflect_Field::clazz(field_mirror()))); |
duke@435 | 1104 | int slot = java_lang_reflect_Field::slot(field_mirror()); |
duke@435 | 1105 | |
duke@435 | 1106 | // Ensure klass is initialized |
duke@435 | 1107 | klass->initialize(CHECK_false); |
duke@435 | 1108 | fd->initialize(klass(), slot); |
duke@435 | 1109 | |
duke@435 | 1110 | bool is_static = fd->is_static(); |
duke@435 | 1111 | KlassHandle receiver_klass; |
duke@435 | 1112 | |
duke@435 | 1113 | if (is_static) { |
duke@435 | 1114 | receiver = KlassHandle(THREAD, klass()); |
duke@435 | 1115 | receiver_klass = klass; |
duke@435 | 1116 | } else { |
duke@435 | 1117 | // Check object is a non-null instance of declaring class |
duke@435 | 1118 | if (receiver.is_null()) { |
duke@435 | 1119 | THROW_(vmSymbols::java_lang_NullPointerException(), false); |
duke@435 | 1120 | } |
duke@435 | 1121 | if (!receiver->is_a(klass())) { |
duke@435 | 1122 | THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), "object is not an instance of declaring class", false); |
duke@435 | 1123 | } |
duke@435 | 1124 | receiver_klass = KlassHandle(THREAD, receiver->klass()); |
duke@435 | 1125 | } |
duke@435 | 1126 | |
duke@435 | 1127 | // Access checking (unless overridden by Field) |
duke@435 | 1128 | if (!java_lang_reflect_Field::override(field_mirror())) { |
duke@435 | 1129 | if (!(klass->is_public() && fd->is_public())) { |
duke@435 | 1130 | bool access_check = reflect_check_access(klass(), fd->access_flags(), receiver_klass(), false, CHECK_false); |
duke@435 | 1131 | if (!access_check) { |
duke@435 | 1132 | return false; // exception |
duke@435 | 1133 | } |
duke@435 | 1134 | } |
duke@435 | 1135 | } |
duke@435 | 1136 | |
duke@435 | 1137 | if (check_final && fd->is_final()) { |
duke@435 | 1138 | // In 1.3 we always throw an error when attempting to set a final field. |
duke@435 | 1139 | // In 1.2.x, this was allowed in the override bit was set by calling Field.setAccessible(true). |
duke@435 | 1140 | // We currently maintain backwards compatibility. See bug 4250960. |
duke@435 | 1141 | bool strict_final_check = !JDK_Version::is_jdk12x_version(); |
duke@435 | 1142 | if (strict_final_check || !java_lang_reflect_Field::override(field_mirror())) { |
duke@435 | 1143 | THROW_MSG_(vmSymbols::java_lang_IllegalAccessException(), "field is final", false); |
duke@435 | 1144 | } |
duke@435 | 1145 | } |
duke@435 | 1146 | return true; |
duke@435 | 1147 | } |
duke@435 | 1148 | |
duke@435 | 1149 | |
duke@435 | 1150 | BasicType Reflection::field_get(jvalue* value, fieldDescriptor* fd, Handle receiver) { |
duke@435 | 1151 | BasicType field_type = fd->field_type(); |
duke@435 | 1152 | int offset = fd->offset(); |
duke@435 | 1153 | switch (field_type) { |
duke@435 | 1154 | case T_BOOLEAN: |
duke@435 | 1155 | value->z = receiver->bool_field(offset); |
duke@435 | 1156 | break; |
duke@435 | 1157 | case T_CHAR: |
duke@435 | 1158 | value->c = receiver->char_field(offset); |
duke@435 | 1159 | break; |
duke@435 | 1160 | case T_FLOAT: |
duke@435 | 1161 | value->f = receiver->float_field(offset); |
duke@435 | 1162 | break; |
duke@435 | 1163 | case T_DOUBLE: |
duke@435 | 1164 | value->d = receiver->double_field(offset); |
duke@435 | 1165 | break; |
duke@435 | 1166 | case T_BYTE: |
duke@435 | 1167 | value->b = receiver->byte_field(offset); |
duke@435 | 1168 | break; |
duke@435 | 1169 | case T_SHORT: |
duke@435 | 1170 | value->s = receiver->short_field(offset); |
duke@435 | 1171 | break; |
duke@435 | 1172 | case T_INT: |
duke@435 | 1173 | value->i = receiver->int_field(offset); |
duke@435 | 1174 | break; |
duke@435 | 1175 | case T_LONG: |
duke@435 | 1176 | value->j = receiver->long_field(offset); |
duke@435 | 1177 | break; |
duke@435 | 1178 | case T_OBJECT: |
duke@435 | 1179 | case T_ARRAY: |
duke@435 | 1180 | value->l = (jobject) receiver->obj_field(offset); |
duke@435 | 1181 | break; |
duke@435 | 1182 | default: |
duke@435 | 1183 | return T_ILLEGAL; |
duke@435 | 1184 | } |
duke@435 | 1185 | return field_type; |
duke@435 | 1186 | } |
duke@435 | 1187 | |
duke@435 | 1188 | |
duke@435 | 1189 | void Reflection::field_set(jvalue* value, fieldDescriptor* fd, Handle receiver, BasicType value_type, TRAPS) { |
duke@435 | 1190 | BasicType field_type = fd->field_type(); |
duke@435 | 1191 | if (field_type != value_type) { |
duke@435 | 1192 | widen(value, value_type, field_type, CHECK); |
duke@435 | 1193 | } |
duke@435 | 1194 | |
duke@435 | 1195 | int offset = fd->offset(); |
duke@435 | 1196 | switch (field_type) { |
duke@435 | 1197 | case T_BOOLEAN: |
duke@435 | 1198 | receiver->bool_field_put(offset, value->z); |
duke@435 | 1199 | break; |
duke@435 | 1200 | case T_CHAR: |
duke@435 | 1201 | receiver->char_field_put(offset, value->c); |
duke@435 | 1202 | break; |
duke@435 | 1203 | case T_FLOAT: |
duke@435 | 1204 | receiver->float_field_put(offset, value->f); |
duke@435 | 1205 | break; |
duke@435 | 1206 | case T_DOUBLE: |
duke@435 | 1207 | receiver->double_field_put(offset, value->d); |
duke@435 | 1208 | break; |
duke@435 | 1209 | case T_BYTE: |
duke@435 | 1210 | receiver->byte_field_put(offset, value->b); |
duke@435 | 1211 | break; |
duke@435 | 1212 | case T_SHORT: |
duke@435 | 1213 | receiver->short_field_put(offset, value->s); |
duke@435 | 1214 | break; |
duke@435 | 1215 | case T_INT: |
duke@435 | 1216 | receiver->int_field_put(offset, value->i); |
duke@435 | 1217 | break; |
duke@435 | 1218 | case T_LONG: |
duke@435 | 1219 | receiver->long_field_put(offset, value->j); |
duke@435 | 1220 | break; |
duke@435 | 1221 | case T_OBJECT: |
duke@435 | 1222 | case T_ARRAY: { |
duke@435 | 1223 | Handle obj(THREAD, (oop) value->l); |
duke@435 | 1224 | if (obj.not_null()) { |
duke@435 | 1225 | symbolHandle signature(THREAD, fd->signature()); |
duke@435 | 1226 | Handle loader (THREAD, fd->loader()); |
duke@435 | 1227 | Handle protect (THREAD, Klass::cast(fd->field_holder())->protection_domain()); |
duke@435 | 1228 | klassOop k = SystemDictionary::resolve_or_fail(signature, loader, protect, true, CHECK); // may block |
duke@435 | 1229 | if (!obj->is_a(k)) { |
duke@435 | 1230 | THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), "field type mismatch"); |
duke@435 | 1231 | } |
duke@435 | 1232 | } |
duke@435 | 1233 | receiver->obj_field_put(offset, obj()); |
duke@435 | 1234 | break; |
duke@435 | 1235 | } |
duke@435 | 1236 | default: |
duke@435 | 1237 | THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), "field type mismatch"); |
duke@435 | 1238 | } |
duke@435 | 1239 | } |
duke@435 | 1240 | |
duke@435 | 1241 | |
duke@435 | 1242 | oop Reflection::reflect_field(oop mirror, symbolOop field_name, jint which, TRAPS) { |
duke@435 | 1243 | // Exclude primitive types and array types |
duke@435 | 1244 | if (java_lang_Class::is_primitive(mirror)) return NULL; |
duke@435 | 1245 | if (Klass::cast(java_lang_Class::as_klassOop(mirror))->oop_is_array()) return NULL; |
duke@435 | 1246 | |
duke@435 | 1247 | instanceKlassHandle k(THREAD, java_lang_Class::as_klassOop(mirror)); |
duke@435 | 1248 | bool local_fields_only = (which == DECLARED); |
duke@435 | 1249 | |
duke@435 | 1250 | // Ensure class is linked |
duke@435 | 1251 | k->link_class(CHECK_NULL); |
duke@435 | 1252 | |
duke@435 | 1253 | // Search class and interface fields |
duke@435 | 1254 | for (FieldStream st(k, local_fields_only, false); !st.eos(); st.next()) { |
duke@435 | 1255 | if (st.name() == field_name) { |
duke@435 | 1256 | if (local_fields_only || st.access_flags().is_public()) { |
duke@435 | 1257 | return new_field(&st, THREAD); |
duke@435 | 1258 | } |
duke@435 | 1259 | } |
duke@435 | 1260 | } |
duke@435 | 1261 | |
duke@435 | 1262 | return NULL; |
duke@435 | 1263 | } |
duke@435 | 1264 | |
duke@435 | 1265 | |
duke@435 | 1266 | objArrayOop Reflection::reflect_fields(oop mirror, jint which, TRAPS) { |
duke@435 | 1267 | // Exclude primitive types and array types |
duke@435 | 1268 | if (java_lang_Class::is_primitive(mirror) |
duke@435 | 1269 | || Klass::cast(java_lang_Class::as_klassOop(mirror))->oop_is_array()) { |
duke@435 | 1270 | symbolHandle name = vmSymbolHandles::java_lang_reflect_Field(); |
duke@435 | 1271 | klassOop klass = SystemDictionary::resolve_or_fail(name, true, CHECK_NULL); |
duke@435 | 1272 | return oopFactory::new_objArray(klass, 0, CHECK_NULL); // Return empty array |
duke@435 | 1273 | } |
duke@435 | 1274 | |
duke@435 | 1275 | instanceKlassHandle k(THREAD, java_lang_Class::as_klassOop(mirror)); |
duke@435 | 1276 | |
duke@435 | 1277 | // Ensure class is linked |
duke@435 | 1278 | k->link_class(CHECK_NULL); |
duke@435 | 1279 | |
duke@435 | 1280 | bool local_fields_only = (which == DECLARED); |
duke@435 | 1281 | int count = 0; |
duke@435 | 1282 | { // Compute fields count for class and interface fields |
duke@435 | 1283 | for (FieldStream st(k, local_fields_only, false); !st.eos(); st.next()) { |
duke@435 | 1284 | if (local_fields_only || st.access_flags().is_public()) { |
duke@435 | 1285 | count++; |
duke@435 | 1286 | } |
duke@435 | 1287 | } |
duke@435 | 1288 | } |
duke@435 | 1289 | |
duke@435 | 1290 | // Allocate result |
duke@435 | 1291 | symbolHandle name = vmSymbolHandles::java_lang_reflect_Field(); |
duke@435 | 1292 | klassOop klass = SystemDictionary::resolve_or_fail(name, true, CHECK_NULL); |
duke@435 | 1293 | objArrayOop r = oopFactory::new_objArray(klass, count, CHECK_NULL); |
duke@435 | 1294 | objArrayHandle result (THREAD, r); |
duke@435 | 1295 | |
duke@435 | 1296 | // Fill in results backwards |
duke@435 | 1297 | { |
duke@435 | 1298 | for (FieldStream st(k, local_fields_only, false); !st.eos(); st.next()) { |
duke@435 | 1299 | if (local_fields_only || st.access_flags().is_public()) { |
duke@435 | 1300 | oop field = new_field(&st, CHECK_NULL); |
duke@435 | 1301 | result->obj_at_put(--count, field); |
duke@435 | 1302 | } |
duke@435 | 1303 | } |
duke@435 | 1304 | assert(count == 0, "just checking"); |
duke@435 | 1305 | } |
duke@435 | 1306 | return result(); |
duke@435 | 1307 | } |
duke@435 | 1308 | |
duke@435 | 1309 | |
duke@435 | 1310 | oop Reflection::reflect_method(oop mirror, symbolHandle method_name, objArrayHandle types, jint which, TRAPS) { |
duke@435 | 1311 | if (java_lang_Class::is_primitive(mirror)) return NULL; |
duke@435 | 1312 | klassOop klass = java_lang_Class::as_klassOop(mirror); |
duke@435 | 1313 | if (Klass::cast(klass)->oop_is_array() && which == MEMBER_DECLARED) return NULL; |
duke@435 | 1314 | |
duke@435 | 1315 | if (Klass::cast(java_lang_Class::as_klassOop(mirror))->oop_is_array()) { |
never@1577 | 1316 | klass = SystemDictionary::Object_klass(); |
duke@435 | 1317 | } |
duke@435 | 1318 | instanceKlassHandle h_k(THREAD, klass); |
duke@435 | 1319 | |
duke@435 | 1320 | // Ensure klass is linked (need not be initialized) |
duke@435 | 1321 | h_k->link_class(CHECK_NULL); |
duke@435 | 1322 | |
duke@435 | 1323 | // For interfaces include static initializers under jdk1.2.x (since classic does that) |
duke@435 | 1324 | bool include_clinit = JDK_Version::is_jdk12x_version() && h_k->is_interface(); |
duke@435 | 1325 | |
duke@435 | 1326 | switch (which) { |
duke@435 | 1327 | case MEMBER_PUBLIC: |
duke@435 | 1328 | // First the public non-static methods (works if method holder is an interface) |
duke@435 | 1329 | // Note that we can ignore checks for overridden methods, since we go up the hierarchy. |
duke@435 | 1330 | { |
duke@435 | 1331 | for (MethodStream st(h_k, false, false); !st.eos(); st.next()) { |
duke@435 | 1332 | methodHandle m(THREAD, st.method()); |
duke@435 | 1333 | // For interfaces include static initializers since classic does that! |
duke@435 | 1334 | if (method_name() == m->name() && (include_clinit || (m->is_public() && !m->is_static() && !m->is_initializer()))) { |
duke@435 | 1335 | symbolHandle signature(THREAD, m->signature()); |
duke@435 | 1336 | bool parameter_match = match_parameter_types(m, types, ArgumentCount(signature).size(), CHECK_NULL); |
duke@435 | 1337 | if (parameter_match) { |
duke@435 | 1338 | return new_method(m, false, false, THREAD); |
duke@435 | 1339 | } |
duke@435 | 1340 | } |
duke@435 | 1341 | } |
duke@435 | 1342 | } |
duke@435 | 1343 | // Then the public static methods (works if method holder is an interface) |
duke@435 | 1344 | { |
duke@435 | 1345 | for (MethodStream st(h_k, false, false); !st.eos(); st.next()) { |
duke@435 | 1346 | methodHandle m(THREAD, st.method()); |
duke@435 | 1347 | if (method_name() == m->name() && m->is_public() && m->is_static() && !m->is_initializer()) { |
duke@435 | 1348 | symbolHandle signature(THREAD, m->signature()); |
duke@435 | 1349 | bool parameter_match = match_parameter_types(m, types, ArgumentCount(signature).size(), CHECK_NULL); |
duke@435 | 1350 | if (parameter_match) { |
duke@435 | 1351 | return new_method(m, false, false, THREAD); |
duke@435 | 1352 | } |
duke@435 | 1353 | } |
duke@435 | 1354 | } |
duke@435 | 1355 | } |
duke@435 | 1356 | break; |
duke@435 | 1357 | case MEMBER_DECLARED: |
duke@435 | 1358 | // All local methods |
duke@435 | 1359 | { |
duke@435 | 1360 | for (MethodStream st(h_k, true, true); !st.eos(); st.next()) { |
duke@435 | 1361 | methodHandle m(THREAD, st.method()); |
duke@435 | 1362 | if (method_name() == m->name() && !m->is_initializer()) { |
duke@435 | 1363 | symbolHandle signature(THREAD, m->signature()); |
duke@435 | 1364 | bool parameter_match = match_parameter_types(m, types, ArgumentCount(signature).size(), CHECK_NULL); |
duke@435 | 1365 | if (parameter_match) { |
duke@435 | 1366 | return new_method(m, false, false, THREAD); |
duke@435 | 1367 | } |
duke@435 | 1368 | } |
duke@435 | 1369 | } |
duke@435 | 1370 | } |
duke@435 | 1371 | break; |
duke@435 | 1372 | default: |
duke@435 | 1373 | break; |
duke@435 | 1374 | } |
duke@435 | 1375 | return NULL; |
duke@435 | 1376 | } |
duke@435 | 1377 | |
duke@435 | 1378 | |
duke@435 | 1379 | objArrayOop Reflection::reflect_methods(oop mirror, jint which, TRAPS) { |
duke@435 | 1380 | // Exclude primitive types |
duke@435 | 1381 | if (java_lang_Class::is_primitive(mirror) || |
duke@435 | 1382 | (Klass::cast(java_lang_Class::as_klassOop(mirror))->oop_is_array() && (which == MEMBER_DECLARED))) { |
never@1577 | 1383 | klassOop klass = SystemDictionary::reflect_Method_klass(); |
duke@435 | 1384 | return oopFactory::new_objArray(klass, 0, CHECK_NULL); // Return empty array |
duke@435 | 1385 | } |
duke@435 | 1386 | |
duke@435 | 1387 | klassOop klass = java_lang_Class::as_klassOop(mirror); |
duke@435 | 1388 | if (Klass::cast(java_lang_Class::as_klassOop(mirror))->oop_is_array()) { |
never@1577 | 1389 | klass = SystemDictionary::Object_klass(); |
duke@435 | 1390 | } |
duke@435 | 1391 | instanceKlassHandle h_k(THREAD, klass); |
duke@435 | 1392 | |
duke@435 | 1393 | // Ensure klass is linked (need not be initialized) |
duke@435 | 1394 | h_k->link_class(CHECK_NULL); |
duke@435 | 1395 | |
duke@435 | 1396 | // We search the (super)interfaces only if h_k is an interface itself |
duke@435 | 1397 | bool is_interface = h_k->is_interface(); |
duke@435 | 1398 | |
duke@435 | 1399 | // For interfaces include static initializers under jdk1.2.x (since classic does that) |
duke@435 | 1400 | bool include_clinit = JDK_Version::is_jdk12x_version() && is_interface; |
duke@435 | 1401 | |
duke@435 | 1402 | switch (which) { |
duke@435 | 1403 | case MEMBER_PUBLIC: |
duke@435 | 1404 | { |
duke@435 | 1405 | |
duke@435 | 1406 | // Count public methods (non-static and static) |
duke@435 | 1407 | int count = 0; |
duke@435 | 1408 | { |
duke@435 | 1409 | for (MethodStream st(h_k, false, false); !st.eos(); st.next()) { |
duke@435 | 1410 | methodOop m = st.method(); |
duke@435 | 1411 | // For interfaces include static initializers since classic does that! |
duke@435 | 1412 | if (include_clinit || (!m->is_initializer() && m->is_public() && !m->is_overridden_in(h_k()))) { |
duke@435 | 1413 | count++; |
duke@435 | 1414 | } |
duke@435 | 1415 | } |
duke@435 | 1416 | } |
duke@435 | 1417 | |
duke@435 | 1418 | // Allocate result |
never@1577 | 1419 | klassOop klass = SystemDictionary::reflect_Method_klass(); |
duke@435 | 1420 | objArrayOop r = oopFactory::new_objArray(klass, count, CHECK_NULL); |
duke@435 | 1421 | objArrayHandle h_result (THREAD, r); |
duke@435 | 1422 | |
duke@435 | 1423 | // Fill in results backwards |
duke@435 | 1424 | { |
duke@435 | 1425 | // First the non-static public methods |
duke@435 | 1426 | for (MethodStream st(h_k, false, false); !st.eos(); st.next()) { |
duke@435 | 1427 | methodHandle m (THREAD, st.method()); |
duke@435 | 1428 | if (!m->is_static() && !m->is_initializer() && m->is_public() && !m->is_overridden_in(h_k())) { |
duke@435 | 1429 | oop method = new_method(m, false, false, CHECK_NULL); |
duke@435 | 1430 | if (method == NULL) { |
duke@435 | 1431 | return NULL; |
duke@435 | 1432 | } else { |
duke@435 | 1433 | h_result->obj_at_put(--count, method); |
duke@435 | 1434 | } |
duke@435 | 1435 | } |
duke@435 | 1436 | } |
duke@435 | 1437 | } |
duke@435 | 1438 | { |
duke@435 | 1439 | // Then the static public methods |
duke@435 | 1440 | for (MethodStream st(h_k, false, !is_interface); !st.eos(); st.next()) { |
duke@435 | 1441 | methodHandle m (THREAD, st.method()); |
duke@435 | 1442 | if (m->is_static() && (include_clinit || (!m->is_initializer()) && m->is_public() && !m->is_overridden_in(h_k()))) { |
duke@435 | 1443 | oop method = new_method(m, false, false, CHECK_NULL); |
duke@435 | 1444 | if (method == NULL) { |
duke@435 | 1445 | return NULL; |
duke@435 | 1446 | } else { |
duke@435 | 1447 | h_result->obj_at_put(--count, method); |
duke@435 | 1448 | } |
duke@435 | 1449 | } |
duke@435 | 1450 | } |
duke@435 | 1451 | } |
duke@435 | 1452 | |
duke@435 | 1453 | assert(count == 0, "just checking"); |
duke@435 | 1454 | return h_result(); |
duke@435 | 1455 | } |
duke@435 | 1456 | |
duke@435 | 1457 | case MEMBER_DECLARED: |
duke@435 | 1458 | { |
duke@435 | 1459 | // Count all methods |
duke@435 | 1460 | int count = 0; |
duke@435 | 1461 | { |
duke@435 | 1462 | for (MethodStream st(h_k, true, !is_interface); !st.eos(); st.next()) { |
duke@435 | 1463 | methodOop m = st.method(); |
duke@435 | 1464 | if (!m->is_initializer()) { |
duke@435 | 1465 | count++; |
duke@435 | 1466 | } |
duke@435 | 1467 | } |
duke@435 | 1468 | } |
duke@435 | 1469 | // Allocate result |
never@1577 | 1470 | klassOop klass = SystemDictionary::reflect_Method_klass(); |
duke@435 | 1471 | objArrayOop r = oopFactory::new_objArray(klass, count, CHECK_NULL); |
duke@435 | 1472 | objArrayHandle h_result (THREAD, r); |
duke@435 | 1473 | |
duke@435 | 1474 | // Fill in results backwards |
duke@435 | 1475 | { |
duke@435 | 1476 | for (MethodStream st(h_k, true, true); !st.eos(); st.next()) { |
duke@435 | 1477 | methodHandle m (THREAD, st.method()); |
duke@435 | 1478 | if (!m->is_initializer()) { |
duke@435 | 1479 | oop method = new_method(m, false, false, CHECK_NULL); |
duke@435 | 1480 | if (method == NULL) { |
duke@435 | 1481 | return NULL; |
duke@435 | 1482 | } else { |
duke@435 | 1483 | h_result->obj_at_put(--count, method); |
duke@435 | 1484 | } |
duke@435 | 1485 | } |
duke@435 | 1486 | } |
duke@435 | 1487 | } |
duke@435 | 1488 | assert(count == 0, "just checking"); |
duke@435 | 1489 | return h_result(); |
duke@435 | 1490 | } |
duke@435 | 1491 | } |
duke@435 | 1492 | ShouldNotReachHere(); |
duke@435 | 1493 | return NULL; |
duke@435 | 1494 | } |
duke@435 | 1495 | |
duke@435 | 1496 | |
duke@435 | 1497 | oop Reflection::reflect_constructor(oop mirror, objArrayHandle types, jint which, TRAPS) { |
duke@435 | 1498 | |
duke@435 | 1499 | // Exclude primitive, interface and array types |
duke@435 | 1500 | bool prim = java_lang_Class::is_primitive(mirror); |
duke@435 | 1501 | Klass* klass = prim ? NULL : Klass::cast(java_lang_Class::as_klassOop(mirror)); |
duke@435 | 1502 | if (prim || klass->is_interface() || klass->oop_is_array()) return NULL; |
duke@435 | 1503 | |
duke@435 | 1504 | // Must be instance klass |
duke@435 | 1505 | instanceKlassHandle h_k(THREAD, java_lang_Class::as_klassOop(mirror)); |
duke@435 | 1506 | |
duke@435 | 1507 | // Ensure klass is linked (need not be initialized) |
duke@435 | 1508 | h_k->link_class(CHECK_NULL); |
duke@435 | 1509 | |
duke@435 | 1510 | bool local_only = (which == MEMBER_DECLARED); |
duke@435 | 1511 | for (MethodStream st(h_k, true, true); !st.eos(); st.next()) { |
duke@435 | 1512 | methodHandle m(THREAD, st.method()); |
duke@435 | 1513 | if (m->name() == vmSymbols::object_initializer_name() && (local_only || m->is_public())) { |
duke@435 | 1514 | symbolHandle signature(THREAD, m->signature()); |
duke@435 | 1515 | bool parameter_match = match_parameter_types(m, types, ArgumentCount(signature).size(), CHECK_NULL); |
duke@435 | 1516 | if (parameter_match) { |
duke@435 | 1517 | return new_constructor(m, THREAD); |
duke@435 | 1518 | } |
duke@435 | 1519 | } |
duke@435 | 1520 | } |
duke@435 | 1521 | |
duke@435 | 1522 | return NULL; |
duke@435 | 1523 | } |
duke@435 | 1524 | |
duke@435 | 1525 | |
duke@435 | 1526 | objArrayOop Reflection::reflect_constructors(oop mirror, jint which, TRAPS) { |
duke@435 | 1527 | // Exclude primitive, interface and array types |
duke@435 | 1528 | bool prim = java_lang_Class::is_primitive(mirror); |
duke@435 | 1529 | Klass* k = prim ? NULL : Klass::cast(java_lang_Class::as_klassOop(mirror)); |
duke@435 | 1530 | if (prim || k->is_interface() || k->oop_is_array()) { |
never@1577 | 1531 | return oopFactory::new_objArray(SystemDictionary::reflect_Constructor_klass(), 0, CHECK_NULL); // Return empty array |
duke@435 | 1532 | } |
duke@435 | 1533 | |
duke@435 | 1534 | // Must be instanceKlass at this point |
duke@435 | 1535 | instanceKlassHandle h_k(THREAD, java_lang_Class::as_klassOop(mirror)); |
duke@435 | 1536 | |
duke@435 | 1537 | // Ensure klass is linked (need not be initialized) |
duke@435 | 1538 | h_k->link_class(CHECK_NULL); |
duke@435 | 1539 | |
duke@435 | 1540 | bool local_only = (which == MEMBER_DECLARED); |
duke@435 | 1541 | int count = 0; |
duke@435 | 1542 | { |
duke@435 | 1543 | for (MethodStream st(h_k, true, true); !st.eos(); st.next()) { |
duke@435 | 1544 | methodOop m = st.method(); |
duke@435 | 1545 | if (m->name() == vmSymbols::object_initializer_name() && (local_only || m->is_public())) { |
duke@435 | 1546 | count++; |
duke@435 | 1547 | } |
duke@435 | 1548 | } |
duke@435 | 1549 | } |
duke@435 | 1550 | |
duke@435 | 1551 | // Allocate result |
duke@435 | 1552 | symbolHandle name = vmSymbolHandles::java_lang_reflect_Constructor(); |
duke@435 | 1553 | klassOop klass = SystemDictionary::resolve_or_fail(name, true, CHECK_NULL); |
duke@435 | 1554 | objArrayOop r = oopFactory::new_objArray(klass, count, CHECK_NULL); |
duke@435 | 1555 | objArrayHandle h_result (THREAD, r); |
duke@435 | 1556 | |
duke@435 | 1557 | // Fill in results backwards |
duke@435 | 1558 | { |
duke@435 | 1559 | for (MethodStream st(h_k, true, true); !st.eos(); st.next()) { |
duke@435 | 1560 | methodHandle m (THREAD, st.method()); |
duke@435 | 1561 | if (m->name() == vmSymbols::object_initializer_name() && (local_only || m->is_public())) { |
duke@435 | 1562 | oop constr = new_constructor(m, CHECK_NULL); |
duke@435 | 1563 | if (constr == NULL) { |
duke@435 | 1564 | return NULL; |
duke@435 | 1565 | } else { |
duke@435 | 1566 | h_result->obj_at_put(--count, constr); |
duke@435 | 1567 | } |
duke@435 | 1568 | } |
duke@435 | 1569 | } |
duke@435 | 1570 | assert(count == 0, "just checking"); |
duke@435 | 1571 | } |
duke@435 | 1572 | return h_result(); |
duke@435 | 1573 | } |
duke@435 | 1574 | |
duke@435 | 1575 | |
duke@435 | 1576 | // This would be nicer if, say, java.lang.reflect.Method was a subclass |
duke@435 | 1577 | // of java.lang.reflect.Constructor |
duke@435 | 1578 | |
duke@435 | 1579 | oop Reflection::invoke_method(oop method_mirror, Handle receiver, objArrayHandle args, TRAPS) { |
duke@435 | 1580 | oop mirror = java_lang_reflect_Method::clazz(method_mirror); |
duke@435 | 1581 | int slot = java_lang_reflect_Method::slot(method_mirror); |
duke@435 | 1582 | bool override = java_lang_reflect_Method::override(method_mirror) != 0; |
duke@435 | 1583 | objArrayHandle ptypes(THREAD, objArrayOop(java_lang_reflect_Method::parameter_types(method_mirror))); |
duke@435 | 1584 | |
duke@435 | 1585 | oop return_type_mirror = java_lang_reflect_Method::return_type(method_mirror); |
duke@435 | 1586 | BasicType rtype; |
duke@435 | 1587 | if (java_lang_Class::is_primitive(return_type_mirror)) { |
duke@435 | 1588 | rtype = basic_type_mirror_to_basic_type(return_type_mirror, CHECK_NULL); |
duke@435 | 1589 | } else { |
duke@435 | 1590 | rtype = T_OBJECT; |
duke@435 | 1591 | } |
duke@435 | 1592 | |
duke@435 | 1593 | instanceKlassHandle klass(THREAD, java_lang_Class::as_klassOop(mirror)); |
dcubed@486 | 1594 | methodOop m = klass->method_with_idnum(slot); |
dcubed@486 | 1595 | if (m == NULL) { |
duke@435 | 1596 | THROW_MSG_0(vmSymbols::java_lang_InternalError(), "invoke"); |
duke@435 | 1597 | } |
dcubed@486 | 1598 | methodHandle method(THREAD, m); |
duke@435 | 1599 | |
duke@435 | 1600 | return invoke(klass, method, receiver, override, ptypes, rtype, args, true, THREAD); |
duke@435 | 1601 | } |
duke@435 | 1602 | |
duke@435 | 1603 | |
duke@435 | 1604 | oop Reflection::invoke_constructor(oop constructor_mirror, objArrayHandle args, TRAPS) { |
duke@435 | 1605 | oop mirror = java_lang_reflect_Constructor::clazz(constructor_mirror); |
duke@435 | 1606 | int slot = java_lang_reflect_Constructor::slot(constructor_mirror); |
duke@435 | 1607 | bool override = java_lang_reflect_Constructor::override(constructor_mirror) != 0; |
duke@435 | 1608 | objArrayHandle ptypes(THREAD, objArrayOop(java_lang_reflect_Constructor::parameter_types(constructor_mirror))); |
duke@435 | 1609 | |
duke@435 | 1610 | instanceKlassHandle klass(THREAD, java_lang_Class::as_klassOop(mirror)); |
dcubed@486 | 1611 | methodOop m = klass->method_with_idnum(slot); |
dcubed@486 | 1612 | if (m == NULL) { |
duke@435 | 1613 | THROW_MSG_0(vmSymbols::java_lang_InternalError(), "invoke"); |
duke@435 | 1614 | } |
dcubed@486 | 1615 | methodHandle method(THREAD, m); |
duke@435 | 1616 | assert(method->name() == vmSymbols::object_initializer_name(), "invalid constructor"); |
duke@435 | 1617 | |
duke@435 | 1618 | // Make sure klass gets initialize |
duke@435 | 1619 | klass->initialize(CHECK_NULL); |
duke@435 | 1620 | |
duke@435 | 1621 | // Create new instance (the receiver) |
duke@435 | 1622 | klass->check_valid_for_instantiation(false, CHECK_NULL); |
duke@435 | 1623 | Handle receiver = klass->allocate_instance_handle(CHECK_NULL); |
duke@435 | 1624 | |
duke@435 | 1625 | // Ignore result from call and return receiver |
duke@435 | 1626 | invoke(klass, method, receiver, override, ptypes, T_VOID, args, false, CHECK_NULL); |
duke@435 | 1627 | return receiver(); |
duke@435 | 1628 | } |
duke@435 | 1629 | |
duke@435 | 1630 | |
duke@435 | 1631 | #endif /* SUPPORT_OLD_REFLECTION */ |