Mercurial > hg > truffle
annotate src/share/vm/runtime/reflection.cpp @ 4142:bc8527f3071c
Adjust code base to new level of warnings.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Sun, 18 Dec 2011 05:24:06 +0100 |
parents | 19241ae0d839 |
children | f7c4174b33ba |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "classfile/javaClasses.hpp" | |
27 #include "classfile/symbolTable.hpp" | |
28 #include "classfile/systemDictionary.hpp" | |
29 #include "classfile/verifier.hpp" | |
30 #include "classfile/vmSymbols.hpp" | |
31 #include "interpreter/linkResolver.hpp" | |
32 #include "memory/oopFactory.hpp" | |
33 #include "memory/resourceArea.hpp" | |
34 #include "memory/universe.inline.hpp" | |
35 #include "oops/instanceKlass.hpp" | |
36 #include "oops/objArrayKlass.hpp" | |
37 #include "oops/objArrayOop.hpp" | |
38 #include "prims/jvm.h" | |
39 #include "prims/methodHandleWalk.hpp" | |
40 #include "runtime/arguments.hpp" | |
41 #include "runtime/handles.inline.hpp" | |
42 #include "runtime/javaCalls.hpp" | |
43 #include "runtime/reflection.hpp" | |
44 #include "runtime/reflectionUtils.hpp" | |
45 #include "runtime/signature.hpp" | |
46 #include "runtime/vframe.hpp" | |
0 | 47 |
48 #define JAVA_1_5_VERSION 49 | |
49 | |
50 static void trace_class_resolution(klassOop to_class) { | |
51 ResourceMark rm; | |
52 int line_number = -1; | |
53 const char * source_file = NULL; | |
54 klassOop caller = NULL; | |
55 JavaThread* jthread = JavaThread::current(); | |
56 if (jthread->has_last_Java_frame()) { | |
57 vframeStream vfst(jthread); | |
58 // skip over any frames belonging to java.lang.Class | |
59 while (!vfst.at_end() && | |
60 instanceKlass::cast(vfst.method()->method_holder())->name() == vmSymbols::java_lang_Class()) { | |
61 vfst.next(); | |
62 } | |
63 if (!vfst.at_end()) { | |
64 // this frame is a likely suspect | |
65 caller = vfst.method()->method_holder(); | |
66 line_number = vfst.method()->line_number_from_bci(vfst.bci()); | |
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67 Symbol* s = instanceKlass::cast(vfst.method()->method_holder())->source_file_name(); |
0 | 68 if (s != NULL) { |
69 source_file = s->as_C_string(); | |
70 } | |
71 } | |
72 } | |
73 if (caller != NULL) { | |
74 const char * from = Klass::cast(caller)->external_name(); | |
75 const char * to = Klass::cast(to_class)->external_name(); | |
76 // print in a single call to reduce interleaving between threads | |
77 if (source_file != NULL) { | |
78 tty->print("RESOLVE %s %s %s:%d (reflection)\n", from, to, source_file, line_number); | |
79 } else { | |
80 tty->print("RESOLVE %s %s (reflection)\n", from, to); | |
81 } | |
82 } | |
83 } | |
84 | |
85 | |
86 oop Reflection::box(jvalue* value, BasicType type, TRAPS) { | |
87 if (type == T_VOID) { | |
88 return NULL; | |
89 } | |
90 if (type == T_OBJECT || type == T_ARRAY) { | |
91 // regular objects are not boxed | |
92 return (oop) value->l; | |
93 } | |
94 oop result = java_lang_boxing_object::create(type, value, CHECK_NULL); | |
95 if (result == NULL) { | |
96 THROW_(vmSymbols::java_lang_IllegalArgumentException(), result); | |
97 } | |
98 return result; | |
99 } | |
100 | |
101 | |
102 BasicType Reflection::unbox_for_primitive(oop box, jvalue* value, TRAPS) { | |
103 if (box == NULL) { | |
104 THROW_(vmSymbols::java_lang_IllegalArgumentException(), T_ILLEGAL); | |
105 } | |
106 return java_lang_boxing_object::get_value(box, value); | |
107 } | |
108 | |
109 BasicType Reflection::unbox_for_regular_object(oop box, jvalue* value) { | |
110 // Note: box is really the unboxed oop. It might even be a Short, etc.! | |
111 value->l = (jobject) box; | |
112 return T_OBJECT; | |
113 } | |
114 | |
115 | |
116 void Reflection::widen(jvalue* value, BasicType current_type, BasicType wide_type, TRAPS) { | |
117 assert(wide_type != current_type, "widen should not be called with identical types"); | |
118 switch (wide_type) { | |
119 case T_BOOLEAN: | |
120 case T_BYTE: | |
121 case T_CHAR: | |
122 break; // fail | |
123 case T_SHORT: | |
124 switch (current_type) { | |
125 case T_BYTE: | |
126 value->s = (jshort) value->b; | |
127 return; | |
128 } | |
129 break; // fail | |
130 case T_INT: | |
131 switch (current_type) { | |
132 case T_BYTE: | |
133 value->i = (jint) value->b; | |
134 return; | |
135 case T_CHAR: | |
136 value->i = (jint) value->c; | |
137 return; | |
138 case T_SHORT: | |
139 value->i = (jint) value->s; | |
140 return; | |
141 } | |
142 break; // fail | |
143 case T_LONG: | |
144 switch (current_type) { | |
145 case T_BYTE: | |
146 value->j = (jlong) value->b; | |
147 return; | |
148 case T_CHAR: | |
149 value->j = (jlong) value->c; | |
150 return; | |
151 case T_SHORT: | |
152 value->j = (jlong) value->s; | |
153 return; | |
154 case T_INT: | |
155 value->j = (jlong) value->i; | |
156 return; | |
157 } | |
158 break; // fail | |
159 case T_FLOAT: | |
160 switch (current_type) { | |
161 case T_BYTE: | |
162 value->f = (jfloat) value->b; | |
163 return; | |
164 case T_CHAR: | |
165 value->f = (jfloat) value->c; | |
166 return; | |
167 case T_SHORT: | |
168 value->f = (jfloat) value->s; | |
169 return; | |
170 case T_INT: | |
171 value->f = (jfloat) value->i; | |
172 return; | |
173 case T_LONG: | |
174 value->f = (jfloat) value->j; | |
175 return; | |
176 } | |
177 break; // fail | |
178 case T_DOUBLE: | |
179 switch (current_type) { | |
180 case T_BYTE: | |
181 value->d = (jdouble) value->b; | |
182 return; | |
183 case T_CHAR: | |
184 value->d = (jdouble) value->c; | |
185 return; | |
186 case T_SHORT: | |
187 value->d = (jdouble) value->s; | |
188 return; | |
189 case T_INT: | |
190 value->d = (jdouble) value->i; | |
191 return; | |
192 case T_FLOAT: | |
193 value->d = (jdouble) value->f; | |
194 return; | |
195 case T_LONG: | |
196 value->d = (jdouble) value->j; | |
197 return; | |
198 } | |
199 break; // fail | |
200 default: | |
201 break; // fail | |
202 } | |
203 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), "argument type mismatch"); | |
204 } | |
205 | |
206 | |
207 BasicType Reflection::array_get(jvalue* value, arrayOop a, int index, TRAPS) { | |
208 if (!a->is_within_bounds(index)) { | |
209 THROW_(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), T_ILLEGAL); | |
210 } | |
211 if (a->is_objArray()) { | |
212 value->l = (jobject) objArrayOop(a)->obj_at(index); | |
213 return T_OBJECT; | |
214 } else { | |
215 assert(a->is_typeArray(), "just checking"); | |
216 BasicType type = typeArrayKlass::cast(a->klass())->element_type(); | |
217 switch (type) { | |
218 case T_BOOLEAN: | |
219 value->z = typeArrayOop(a)->bool_at(index); | |
220 break; | |
221 case T_CHAR: | |
222 value->c = typeArrayOop(a)->char_at(index); | |
223 break; | |
224 case T_FLOAT: | |
225 value->f = typeArrayOop(a)->float_at(index); | |
226 break; | |
227 case T_DOUBLE: | |
228 value->d = typeArrayOop(a)->double_at(index); | |
229 break; | |
230 case T_BYTE: | |
231 value->b = typeArrayOop(a)->byte_at(index); | |
232 break; | |
233 case T_SHORT: | |
234 value->s = typeArrayOop(a)->short_at(index); | |
235 break; | |
236 case T_INT: | |
237 value->i = typeArrayOop(a)->int_at(index); | |
238 break; | |
239 case T_LONG: | |
240 value->j = typeArrayOop(a)->long_at(index); | |
241 break; | |
242 default: | |
243 return T_ILLEGAL; | |
244 } | |
245 return type; | |
246 } | |
247 } | |
248 | |
249 | |
250 void Reflection::array_set(jvalue* value, arrayOop a, int index, BasicType value_type, TRAPS) { | |
251 if (!a->is_within_bounds(index)) { | |
252 THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); | |
253 } | |
254 if (a->is_objArray()) { | |
255 if (value_type == T_OBJECT) { | |
256 oop obj = (oop) value->l; | |
257 if (obj != NULL) { | |
258 klassOop element_klass = objArrayKlass::cast(a->klass())->element_klass(); | |
259 if (!obj->is_a(element_klass)) { | |
260 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), "array element type mismatch"); | |
261 } | |
262 } | |
263 objArrayOop(a)->obj_at_put(index, obj); | |
264 } | |
265 } else { | |
266 assert(a->is_typeArray(), "just checking"); | |
267 BasicType array_type = typeArrayKlass::cast(a->klass())->element_type(); | |
268 if (array_type != value_type) { | |
269 // The widen operation can potentially throw an exception, but cannot block, | |
270 // so typeArrayOop a is safe if the call succeeds. | |
271 widen(value, value_type, array_type, CHECK); | |
272 } | |
273 switch (array_type) { | |
274 case T_BOOLEAN: | |
275 typeArrayOop(a)->bool_at_put(index, value->z); | |
276 break; | |
277 case T_CHAR: | |
278 typeArrayOop(a)->char_at_put(index, value->c); | |
279 break; | |
280 case T_FLOAT: | |
281 typeArrayOop(a)->float_at_put(index, value->f); | |
282 break; | |
283 case T_DOUBLE: | |
284 typeArrayOop(a)->double_at_put(index, value->d); | |
285 break; | |
286 case T_BYTE: | |
287 typeArrayOop(a)->byte_at_put(index, value->b); | |
288 break; | |
289 case T_SHORT: | |
290 typeArrayOop(a)->short_at_put(index, value->s); | |
291 break; | |
292 case T_INT: | |
293 typeArrayOop(a)->int_at_put(index, value->i); | |
294 break; | |
295 case T_LONG: | |
296 typeArrayOop(a)->long_at_put(index, value->j); | |
297 break; | |
298 default: | |
299 THROW(vmSymbols::java_lang_IllegalArgumentException()); | |
300 } | |
301 } | |
302 } | |
303 | |
304 | |
305 klassOop Reflection::basic_type_mirror_to_arrayklass(oop basic_type_mirror, TRAPS) { | |
306 assert(java_lang_Class::is_primitive(basic_type_mirror), "just checking"); | |
307 BasicType type = java_lang_Class::primitive_type(basic_type_mirror); | |
308 if (type == T_VOID) { | |
309 THROW_0(vmSymbols::java_lang_IllegalArgumentException()); | |
310 } else { | |
311 return Universe::typeArrayKlassObj(type); | |
312 } | |
313 } | |
314 | |
315 | |
316 oop Reflection:: basic_type_arrayklass_to_mirror(klassOop basic_type_arrayklass, TRAPS) { | |
317 BasicType type = typeArrayKlass::cast(basic_type_arrayklass)->element_type(); | |
318 return Universe::java_mirror(type); | |
319 } | |
320 | |
321 | |
322 arrayOop Reflection::reflect_new_array(oop element_mirror, jint length, TRAPS) { | |
323 if (element_mirror == NULL) { | |
324 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
325 } | |
326 if (length < 0) { | |
327 THROW_0(vmSymbols::java_lang_NegativeArraySizeException()); | |
328 } | |
329 if (java_lang_Class::is_primitive(element_mirror)) { | |
330 klassOop tak = basic_type_mirror_to_arrayklass(element_mirror, CHECK_NULL); | |
331 return typeArrayKlass::cast(tak)->allocate(length, THREAD); | |
332 } else { | |
333 klassOop k = java_lang_Class::as_klassOop(element_mirror); | |
334 if (Klass::cast(k)->oop_is_array() && arrayKlass::cast(k)->dimension() >= MAX_DIM) { | |
335 THROW_0(vmSymbols::java_lang_IllegalArgumentException()); | |
336 } | |
337 return oopFactory::new_objArray(k, length, THREAD); | |
338 } | |
339 } | |
340 | |
341 | |
342 arrayOop Reflection::reflect_new_multi_array(oop element_mirror, typeArrayOop dim_array, TRAPS) { | |
343 assert(dim_array->is_typeArray(), "just checking"); | |
344 assert(typeArrayKlass::cast(dim_array->klass())->element_type() == T_INT, "just checking"); | |
345 | |
346 if (element_mirror == NULL) { | |
347 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
348 } | |
349 | |
350 int len = dim_array->length(); | |
351 if (len <= 0 || len > MAX_DIM) { | |
352 THROW_0(vmSymbols::java_lang_IllegalArgumentException()); | |
353 } | |
354 | |
355 jint dimensions[MAX_DIM]; // C array copy of intArrayOop | |
356 for (int i = 0; i < len; i++) { | |
357 int d = dim_array->int_at(i); | |
358 if (d < 0) { | |
359 THROW_0(vmSymbols::java_lang_NegativeArraySizeException()); | |
360 } | |
361 dimensions[i] = d; | |
362 } | |
363 | |
364 klassOop klass; | |
365 int dim = len; | |
366 if (java_lang_Class::is_primitive(element_mirror)) { | |
367 klass = basic_type_mirror_to_arrayklass(element_mirror, CHECK_NULL); | |
368 } else { | |
369 klass = java_lang_Class::as_klassOop(element_mirror); | |
370 if (Klass::cast(klass)->oop_is_array()) { | |
371 int k_dim = arrayKlass::cast(klass)->dimension(); | |
372 if (k_dim + len > MAX_DIM) { | |
373 THROW_0(vmSymbols::java_lang_IllegalArgumentException()); | |
374 } | |
375 dim += k_dim; | |
376 } | |
377 } | |
378 klass = Klass::cast(klass)->array_klass(dim, CHECK_NULL); | |
379 oop obj = arrayKlass::cast(klass)->multi_allocate(len, dimensions, THREAD); | |
380 assert(obj->is_array(), "just checking"); | |
381 return arrayOop(obj); | |
382 } | |
383 | |
384 | |
385 oop Reflection::array_component_type(oop mirror, TRAPS) { | |
386 if (java_lang_Class::is_primitive(mirror)) { | |
387 return NULL; | |
388 } | |
389 | |
390 klassOop klass = java_lang_Class::as_klassOop(mirror); | |
391 if (!Klass::cast(klass)->oop_is_array()) { | |
392 return NULL; | |
393 } | |
394 | |
395 oop result = arrayKlass::cast(klass)->component_mirror(); | |
396 #ifdef ASSERT | |
397 oop result2 = NULL; | |
398 if (arrayKlass::cast(klass)->dimension() == 1) { | |
399 if (Klass::cast(klass)->oop_is_typeArray()) { | |
400 result2 = basic_type_arrayklass_to_mirror(klass, CHECK_NULL); | |
401 } else { | |
402 result2 = Klass::cast(objArrayKlass::cast(klass)->element_klass())->java_mirror(); | |
403 } | |
404 } else { | |
405 klassOop lower_dim = arrayKlass::cast(klass)->lower_dimension(); | |
406 assert(Klass::cast(lower_dim)->oop_is_array(), "just checking"); | |
407 result2 = Klass::cast(lower_dim)->java_mirror(); | |
408 } | |
409 assert(result == result2, "results must be consistent"); | |
410 #endif //ASSERT | |
411 return result; | |
412 } | |
413 | |
414 | |
415 bool Reflection::reflect_check_access(klassOop field_class, AccessFlags acc, klassOop target_class, bool is_method_invoke, TRAPS) { | |
416 // field_class : declaring class | |
417 // acc : declared field access | |
418 // target_class : for protected | |
419 | |
420 // Check if field or method is accessible to client. Throw an | |
421 // IllegalAccessException and return false if not. | |
422 | |
423 // The "client" is the class associated with the nearest real frame | |
424 // getCallerClass already skips Method.invoke frames, so pass 0 in | |
425 // that case (same as classic). | |
426 ResourceMark rm(THREAD); | |
427 assert(THREAD->is_Java_thread(), "sanity check"); | |
428 klassOop client_class = ((JavaThread *)THREAD)->security_get_caller_class(is_method_invoke ? 0 : 1); | |
429 | |
430 if (client_class != field_class) { | |
431 if (!verify_class_access(client_class, field_class, false) | |
432 || !verify_field_access(client_class, | |
433 field_class, | |
434 field_class, | |
435 acc, | |
436 false)) { | |
437 THROW_(vmSymbols::java_lang_IllegalAccessException(), false); | |
438 } | |
439 } | |
440 | |
441 // Additional test for protected members: JLS 6.6.2 | |
442 | |
443 if (acc.is_protected()) { | |
444 if (target_class != client_class) { | |
445 if (!is_same_class_package(client_class, field_class)) { | |
446 if (!Klass::cast(target_class)->is_subclass_of(client_class)) { | |
447 THROW_(vmSymbols::java_lang_IllegalAccessException(), false); | |
448 } | |
449 } | |
450 } | |
451 } | |
452 | |
453 // Passed all tests | |
454 return true; | |
455 } | |
456 | |
457 | |
458 bool Reflection::verify_class_access(klassOop current_class, klassOop new_class, bool classloader_only) { | |
459 // Verify that current_class can access new_class. If the classloader_only | |
460 // flag is set, we automatically allow any accesses in which current_class | |
461 // doesn't have a classloader. | |
462 if ((current_class == NULL) || | |
463 (current_class == new_class) || | |
464 (instanceKlass::cast(new_class)->is_public()) || | |
465 is_same_class_package(current_class, new_class)) { | |
466 return true; | |
467 } | |
468 // New (1.4) reflection implementation. Allow all accesses from | |
469 // sun/reflect/MagicAccessorImpl subclasses to succeed trivially. | |
470 if ( JDK_Version::is_gte_jdk14x_version() | |
471 && UseNewReflection | |
1142 | 472 && Klass::cast(current_class)->is_subclass_of(SystemDictionary::reflect_MagicAccessorImpl_klass())) { |
0 | 473 return true; |
474 } | |
475 | |
476 return can_relax_access_check_for(current_class, new_class, classloader_only); | |
477 } | |
478 | |
431
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479 static bool under_host_klass(instanceKlass* ik, klassOop host_klass) { |
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480 DEBUG_ONLY(int inf_loop_check = 1000 * 1000 * 1000); |
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481 for (;;) { |
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482 klassOop hc = (klassOop) ik->host_klass(); |
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483 if (hc == NULL) return false; |
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484 if (hc == host_klass) return true; |
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485 ik = instanceKlass::cast(hc); |
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486 |
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487 // There's no way to make a host class loop short of patching memory. |
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488 // Therefore there cannot be a loop here unles there's another bug. |
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489 // Still, let's check for it. |
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490 assert(--inf_loop_check > 0, "no host_klass loop"); |
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491 } |
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492 } |
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493 |
0 | 494 bool Reflection::can_relax_access_check_for( |
495 klassOop accessor, klassOop accessee, bool classloader_only) { | |
496 instanceKlass* accessor_ik = instanceKlass::cast(accessor); | |
497 instanceKlass* accessee_ik = instanceKlass::cast(accessee); | |
431
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498 |
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499 // If either is on the other's host_klass chain, access is OK, |
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500 // because one is inside the other. |
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501 if (under_host_klass(accessor_ik, accessee) || |
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502 under_host_klass(accessee_ik, accessor)) |
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503 return true; |
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504 |
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505 // Adapter frames can access anything. |
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506 if (MethodHandleCompiler::klass_is_method_handle_adapter_holder(accessor)) |
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507 // This is an internal adapter frame from the MethodHandleCompiler. |
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508 return true; |
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509 |
0 | 510 if (RelaxAccessControlCheck || |
511 (accessor_ik->major_version() < JAVA_1_5_VERSION && | |
512 accessee_ik->major_version() < JAVA_1_5_VERSION)) { | |
513 return classloader_only && | |
514 Verifier::relax_verify_for(accessor_ik->class_loader()) && | |
515 accessor_ik->protection_domain() == accessee_ik->protection_domain() && | |
516 accessor_ik->class_loader() == accessee_ik->class_loader(); | |
517 } else { | |
518 return false; | |
519 } | |
520 } | |
521 | |
522 bool Reflection::verify_field_access(klassOop current_class, | |
523 klassOop resolved_class, | |
524 klassOop field_class, | |
525 AccessFlags access, | |
526 bool classloader_only, | |
527 bool protected_restriction) { | |
528 // Verify that current_class can access a field of field_class, where that | |
529 // field's access bits are "access". We assume that we've already verified | |
530 // that current_class can access field_class. | |
531 // | |
532 // If the classloader_only flag is set, we automatically allow any accesses | |
533 // in which current_class doesn't have a classloader. | |
534 // | |
535 // "resolved_class" is the runtime type of "field_class". Sometimes we don't | |
536 // need this distinction (e.g. if all we have is the runtime type, or during | |
537 // class file parsing when we only care about the static type); in that case | |
538 // callers should ensure that resolved_class == field_class. | |
539 // | |
540 if ((current_class == NULL) || | |
541 (current_class == field_class) || | |
542 access.is_public()) { | |
543 return true; | |
544 } | |
545 | |
546 if (access.is_protected()) { | |
547 if (!protected_restriction) { | |
548 // See if current_class is a subclass of field_class | |
549 if (Klass::cast(current_class)->is_subclass_of(field_class)) { | |
115 | 550 if (access.is_static() || // static fields are ok, see 6622385 |
551 current_class == resolved_class || | |
0 | 552 field_class == resolved_class || |
553 Klass::cast(current_class)->is_subclass_of(resolved_class) || | |
554 Klass::cast(resolved_class)->is_subclass_of(current_class)) { | |
555 return true; | |
556 } | |
557 } | |
558 } | |
559 } | |
560 | |
561 if (!access.is_private() && is_same_class_package(current_class, field_class)) { | |
562 return true; | |
563 } | |
564 | |
565 // New (1.4) reflection implementation. Allow all accesses from | |
566 // sun/reflect/MagicAccessorImpl subclasses to succeed trivially. | |
567 if ( JDK_Version::is_gte_jdk14x_version() | |
568 && UseNewReflection | |
1142 | 569 && Klass::cast(current_class)->is_subclass_of(SystemDictionary::reflect_MagicAccessorImpl_klass())) { |
0 | 570 return true; |
571 } | |
572 | |
573 return can_relax_access_check_for( | |
574 current_class, field_class, classloader_only); | |
575 } | |
576 | |
577 | |
578 bool Reflection::is_same_class_package(klassOop class1, klassOop class2) { | |
579 return instanceKlass::cast(class1)->is_same_class_package(class2); | |
580 } | |
581 | |
665
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582 bool Reflection::is_same_package_member(klassOop class1, klassOop class2, TRAPS) { |
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583 return instanceKlass::cast(class1)->is_same_package_member(class2, THREAD); |
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584 } |
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585 |
0 | 586 |
587 // Checks that the 'outer' klass has declared 'inner' as being an inner klass. If not, | |
588 // throw an incompatible class change exception | |
665
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589 // If inner_is_member, require the inner to be a member of the outer. |
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590 // If !inner_is_member, require the inner to be anonymous (a non-member). |
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591 // Caller is responsible for figuring out in advance which case must be true. |
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592 void Reflection::check_for_inner_class(instanceKlassHandle outer, instanceKlassHandle inner, |
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593 bool inner_is_member, TRAPS) { |
0 | 594 const int inner_class_info_index = 0; |
595 const int outer_class_info_index = 1; | |
596 | |
597 typeArrayHandle icls (THREAD, outer->inner_classes()); | |
598 constantPoolHandle cp (THREAD, outer->constants()); | |
599 for(int i = 0; i < icls->length(); i += 4) { | |
600 int ioff = icls->ushort_at(i + inner_class_info_index); | |
601 int ooff = icls->ushort_at(i + outer_class_info_index); | |
602 | |
665
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603 if (inner_is_member && ioff != 0 && ooff != 0) { |
0 | 604 klassOop o = cp->klass_at(ooff, CHECK); |
605 if (o == outer()) { | |
606 klassOop i = cp->klass_at(ioff, CHECK); | |
607 if (i == inner()) { | |
608 return; | |
609 } | |
610 } | |
611 } | |
665
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612 if (!inner_is_member && ioff != 0 && ooff == 0 && |
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613 cp->klass_name_at_matches(inner, ioff)) { |
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614 klassOop i = cp->klass_at(ioff, CHECK); |
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615 if (i == inner()) { |
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616 return; |
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617 } |
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618 } |
0 | 619 } |
620 | |
621 // 'inner' not declared as an inner klass in outer | |
622 ResourceMark rm(THREAD); | |
623 Exceptions::fthrow( | |
624 THREAD_AND_LOCATION, | |
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625 vmSymbols::java_lang_IncompatibleClassChangeError(), |
0 | 626 "%s and %s disagree on InnerClasses attribute", |
627 outer->external_name(), | |
628 inner->external_name() | |
629 ); | |
630 } | |
631 | |
632 // Utility method converting a single SignatureStream element into java.lang.Class instance | |
633 | |
634 oop get_mirror_from_signature(methodHandle method, SignatureStream* ss, TRAPS) { | |
635 switch (ss->type()) { | |
636 default: | |
637 assert(ss->type() != T_VOID || ss->at_return_type(), "T_VOID should only appear as return type"); | |
638 return java_lang_Class::primitive_mirror(ss->type()); | |
639 case T_OBJECT: | |
640 case T_ARRAY: | |
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641 Symbol* name = ss->as_symbol(CHECK_NULL); |
0 | 642 oop loader = instanceKlass::cast(method->method_holder())->class_loader(); |
643 oop protection_domain = instanceKlass::cast(method->method_holder())->protection_domain(); | |
644 klassOop k = SystemDictionary::resolve_or_fail( | |
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645 name, |
0 | 646 Handle(THREAD, loader), |
647 Handle(THREAD, protection_domain), | |
648 true, CHECK_NULL); | |
649 if (TraceClassResolution) { | |
650 trace_class_resolution(k); | |
651 } | |
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652 return k->java_mirror(); |
0 | 653 }; |
654 } | |
655 | |
656 | |
657 objArrayHandle Reflection::get_parameter_types(methodHandle method, int parameter_count, oop* return_type, TRAPS) { | |
658 // Allocate array holding parameter types (java.lang.Class instances) | |
1142 | 659 objArrayOop m = oopFactory::new_objArray(SystemDictionary::Class_klass(), parameter_count, CHECK_(objArrayHandle())); |
0 | 660 objArrayHandle mirrors (THREAD, m); |
661 int index = 0; | |
662 // Collect parameter types | |
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663 ResourceMark rm(THREAD); |
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664 Symbol* signature = method->signature(); |
0 | 665 SignatureStream ss(signature); |
666 while (!ss.at_return_type()) { | |
667 oop mirror = get_mirror_from_signature(method, &ss, CHECK_(objArrayHandle())); | |
668 mirrors->obj_at_put(index++, mirror); | |
669 ss.next(); | |
670 } | |
671 assert(index == parameter_count, "invalid parameter count"); | |
672 if (return_type != NULL) { | |
673 // Collect return type as well | |
674 assert(ss.at_return_type(), "return type should be present"); | |
675 *return_type = get_mirror_from_signature(method, &ss, CHECK_(objArrayHandle())); | |
676 } | |
677 return mirrors; | |
678 } | |
679 | |
680 objArrayHandle Reflection::get_exception_types(methodHandle method, TRAPS) { | |
681 return method->resolved_checked_exceptions(CHECK_(objArrayHandle())); | |
682 } | |
683 | |
684 | |
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685 Handle Reflection::new_type(Symbol* signature, KlassHandle k, TRAPS) { |
0 | 686 // Basic types |
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687 BasicType type = vmSymbols::signature_type(signature); |
0 | 688 if (type != T_OBJECT) { |
689 return Handle(THREAD, Universe::java_mirror(type)); | |
690 } | |
691 | |
692 oop loader = instanceKlass::cast(k())->class_loader(); | |
693 oop protection_domain = Klass::cast(k())->protection_domain(); | |
694 klassOop result = SystemDictionary::resolve_or_fail(signature, | |
695 Handle(THREAD, loader), | |
696 Handle(THREAD, protection_domain), | |
697 true, CHECK_(Handle())); | |
698 | |
699 if (TraceClassResolution) { | |
700 trace_class_resolution(result); | |
701 } | |
702 | |
703 oop nt = Klass::cast(result)->java_mirror(); | |
704 return Handle(THREAD, nt); | |
705 } | |
706 | |
707 | |
708 oop Reflection::new_method(methodHandle method, bool intern_name, bool for_constant_pool_access, TRAPS) { | |
709 // In jdk1.2.x, getMethods on an interface erroneously includes <clinit>, thus the complicated assert. | |
710 // Also allow sun.reflect.ConstantPool to refer to <clinit> methods as java.lang.reflect.Methods. | |
711 assert(!method()->is_initializer() || | |
712 (for_constant_pool_access && method()->is_static()) || | |
713 (method()->name() == vmSymbols::class_initializer_name() | |
714 && Klass::cast(method()->method_holder())->is_interface() && JDK_Version::is_jdk12x_version()), "should call new_constructor instead"); | |
715 instanceKlassHandle holder (THREAD, method->method_holder()); | |
716 int slot = method->method_idnum(); | |
717 | |
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718 Symbol* signature = method->signature(); |
0 | 719 int parameter_count = ArgumentCount(signature).size(); |
720 oop return_type_oop = NULL; | |
721 objArrayHandle parameter_types = get_parameter_types(method, parameter_count, &return_type_oop, CHECK_NULL); | |
722 if (parameter_types.is_null() || return_type_oop == NULL) return NULL; | |
723 | |
724 Handle return_type(THREAD, return_type_oop); | |
725 | |
726 objArrayHandle exception_types = get_exception_types(method, CHECK_NULL); | |
727 | |
728 if (exception_types.is_null()) return NULL; | |
729 | |
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730 Symbol* method_name = method->name(); |
0 | 731 Handle name; |
732 if (intern_name) { | |
733 // intern_name is only true with UseNewReflection | |
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734 oop name_oop = StringTable::intern(method_name, CHECK_NULL); |
0 | 735 name = Handle(THREAD, name_oop); |
736 } else { | |
737 name = java_lang_String::create_from_symbol(method_name, CHECK_NULL); | |
738 } | |
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739 if (name == NULL) return NULL; |
0 | 740 |
741 int modifiers = method->access_flags().as_int() & JVM_RECOGNIZED_METHOD_MODIFIERS; | |
742 | |
743 Handle mh = java_lang_reflect_Method::create(CHECK_NULL); | |
744 | |
745 java_lang_reflect_Method::set_clazz(mh(), holder->java_mirror()); | |
746 java_lang_reflect_Method::set_slot(mh(), slot); | |
747 java_lang_reflect_Method::set_name(mh(), name()); | |
748 java_lang_reflect_Method::set_return_type(mh(), return_type()); | |
749 java_lang_reflect_Method::set_parameter_types(mh(), parameter_types()); | |
750 java_lang_reflect_Method::set_exception_types(mh(), exception_types()); | |
751 java_lang_reflect_Method::set_modifiers(mh(), modifiers); | |
752 java_lang_reflect_Method::set_override(mh(), false); | |
753 if (java_lang_reflect_Method::has_signature_field() && | |
754 method->generic_signature() != NULL) { | |
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755 Symbol* gs = method->generic_signature(); |
0 | 756 Handle sig = java_lang_String::create_from_symbol(gs, CHECK_NULL); |
757 java_lang_reflect_Method::set_signature(mh(), sig()); | |
758 } | |
759 if (java_lang_reflect_Method::has_annotations_field()) { | |
760 java_lang_reflect_Method::set_annotations(mh(), method->annotations()); | |
761 } | |
762 if (java_lang_reflect_Method::has_parameter_annotations_field()) { | |
763 java_lang_reflect_Method::set_parameter_annotations(mh(), method->parameter_annotations()); | |
764 } | |
765 if (java_lang_reflect_Method::has_annotation_default_field()) { | |
766 java_lang_reflect_Method::set_annotation_default(mh(), method->annotation_default()); | |
767 } | |
768 return mh(); | |
769 } | |
770 | |
771 | |
772 oop Reflection::new_constructor(methodHandle method, TRAPS) { | |
773 assert(method()->is_initializer(), "should call new_method instead"); | |
774 | |
775 instanceKlassHandle holder (THREAD, method->method_holder()); | |
776 int slot = method->method_idnum(); | |
777 | |
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778 Symbol* signature = method->signature(); |
0 | 779 int parameter_count = ArgumentCount(signature).size(); |
780 objArrayHandle parameter_types = get_parameter_types(method, parameter_count, NULL, CHECK_NULL); | |
781 if (parameter_types.is_null()) return NULL; | |
782 | |
783 objArrayHandle exception_types = get_exception_types(method, CHECK_NULL); | |
784 if (exception_types.is_null()) return NULL; | |
785 | |
786 int modifiers = method->access_flags().as_int() & JVM_RECOGNIZED_METHOD_MODIFIERS; | |
787 | |
788 Handle ch = java_lang_reflect_Constructor::create(CHECK_NULL); | |
789 | |
790 java_lang_reflect_Constructor::set_clazz(ch(), holder->java_mirror()); | |
791 java_lang_reflect_Constructor::set_slot(ch(), slot); | |
792 java_lang_reflect_Constructor::set_parameter_types(ch(), parameter_types()); | |
793 java_lang_reflect_Constructor::set_exception_types(ch(), exception_types()); | |
794 java_lang_reflect_Constructor::set_modifiers(ch(), modifiers); | |
795 java_lang_reflect_Constructor::set_override(ch(), false); | |
796 if (java_lang_reflect_Constructor::has_signature_field() && | |
797 method->generic_signature() != NULL) { | |
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798 Symbol* gs = method->generic_signature(); |
0 | 799 Handle sig = java_lang_String::create_from_symbol(gs, CHECK_NULL); |
800 java_lang_reflect_Constructor::set_signature(ch(), sig()); | |
801 } | |
802 if (java_lang_reflect_Constructor::has_annotations_field()) { | |
803 java_lang_reflect_Constructor::set_annotations(ch(), method->annotations()); | |
804 } | |
805 if (java_lang_reflect_Constructor::has_parameter_annotations_field()) { | |
806 java_lang_reflect_Constructor::set_parameter_annotations(ch(), method->parameter_annotations()); | |
807 } | |
808 return ch(); | |
809 } | |
810 | |
811 | |
812 oop Reflection::new_field(fieldDescriptor* fd, bool intern_name, TRAPS) { | |
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813 Symbol* field_name = fd->name(); |
0 | 814 Handle name; |
815 if (intern_name) { | |
816 // intern_name is only true with UseNewReflection | |
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817 oop name_oop = StringTable::intern(field_name, CHECK_NULL); |
0 | 818 name = Handle(THREAD, name_oop); |
819 } else { | |
820 name = java_lang_String::create_from_symbol(field_name, CHECK_NULL); | |
821 } | |
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822 Symbol* signature = fd->signature(); |
0 | 823 KlassHandle holder (THREAD, fd->field_holder()); |
824 Handle type = new_type(signature, holder, CHECK_NULL); | |
825 Handle rh = java_lang_reflect_Field::create(CHECK_NULL); | |
826 | |
827 java_lang_reflect_Field::set_clazz(rh(), Klass::cast(fd->field_holder())->java_mirror()); | |
828 java_lang_reflect_Field::set_slot(rh(), fd->index()); | |
829 java_lang_reflect_Field::set_name(rh(), name()); | |
830 java_lang_reflect_Field::set_type(rh(), type()); | |
831 // Note the ACC_ANNOTATION bit, which is a per-class access flag, is never set here. | |
832 java_lang_reflect_Field::set_modifiers(rh(), fd->access_flags().as_int() & JVM_RECOGNIZED_FIELD_MODIFIERS); | |
833 java_lang_reflect_Field::set_override(rh(), false); | |
834 if (java_lang_reflect_Field::has_signature_field() && | |
835 fd->generic_signature() != NULL) { | |
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836 Symbol* gs = fd->generic_signature(); |
0 | 837 Handle sig = java_lang_String::create_from_symbol(gs, CHECK_NULL); |
838 java_lang_reflect_Field::set_signature(rh(), sig()); | |
839 } | |
840 if (java_lang_reflect_Field::has_annotations_field()) { | |
841 java_lang_reflect_Field::set_annotations(rh(), fd->annotations()); | |
842 } | |
843 return rh(); | |
844 } | |
845 | |
846 | |
847 methodHandle Reflection::resolve_interface_call(instanceKlassHandle klass, methodHandle method, | |
848 KlassHandle recv_klass, Handle receiver, TRAPS) { | |
849 assert(!method.is_null() , "method should not be null"); | |
850 | |
851 CallInfo info; | |
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852 Symbol* signature = method->signature(); |
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853 Symbol* name = method->name(); |
0 | 854 LinkResolver::resolve_interface_call(info, receiver, recv_klass, klass, |
855 name, signature, | |
856 KlassHandle(), false, true, | |
857 CHECK_(methodHandle())); | |
858 return info.selected_method(); | |
859 } | |
860 | |
861 | |
862 oop Reflection::invoke(instanceKlassHandle klass, methodHandle reflected_method, | |
863 Handle receiver, bool override, objArrayHandle ptypes, | |
864 BasicType rtype, objArrayHandle args, bool is_method_invoke, TRAPS) { | |
865 ResourceMark rm(THREAD); | |
866 | |
867 methodHandle method; // actual method to invoke | |
868 KlassHandle target_klass; // target klass, receiver's klass for non-static | |
869 | |
870 // Ensure klass is initialized | |
871 klass->initialize(CHECK_NULL); | |
872 | |
873 bool is_static = reflected_method->is_static(); | |
874 if (is_static) { | |
875 // ignore receiver argument | |
876 method = reflected_method; | |
877 target_klass = klass; | |
878 } else { | |
879 // check for null receiver | |
880 if (receiver.is_null()) { | |
881 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
882 } | |
883 // Check class of receiver against class declaring method | |
884 if (!receiver->is_a(klass())) { | |
885 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "object is not an instance of declaring class"); | |
886 } | |
887 // target klass is receiver's klass | |
888 target_klass = KlassHandle(THREAD, receiver->klass()); | |
889 // no need to resolve if method is private or <init> | |
890 if (reflected_method->is_private() || reflected_method->name() == vmSymbols::object_initializer_name()) { | |
891 method = reflected_method; | |
892 } else { | |
893 // resolve based on the receiver | |
894 if (instanceKlass::cast(reflected_method->method_holder())->is_interface()) { | |
895 // resolve interface call | |
896 if (ReflectionWrapResolutionErrors) { | |
897 // new default: 6531596 | |
898 // Match resolution errors with those thrown due to reflection inlining | |
899 // Linktime resolution & IllegalAccessCheck already done by Class.getMethod() | |
900 method = resolve_interface_call(klass, reflected_method, target_klass, receiver, THREAD); | |
901 if (HAS_PENDING_EXCEPTION) { | |
902 // Method resolution threw an exception; wrap it in an InvocationTargetException | |
903 oop resolution_exception = PENDING_EXCEPTION; | |
904 CLEAR_PENDING_EXCEPTION; | |
905 JavaCallArguments args(Handle(THREAD, resolution_exception)); | |
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906 THROW_ARG_0(vmSymbols::java_lang_reflect_InvocationTargetException(), |
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907 vmSymbols::throwable_void_signature(), |
0 | 908 &args); |
909 } | |
910 } else { | |
911 method = resolve_interface_call(klass, reflected_method, target_klass, receiver, CHECK_(NULL)); | |
912 } | |
913 } else { | |
914 // if the method can be overridden, we resolve using the vtable index. | |
915 int index = reflected_method->vtable_index(); | |
916 method = reflected_method; | |
917 if (index != methodOopDesc::nonvirtual_vtable_index) { | |
918 // target_klass might be an arrayKlassOop but all vtables start at | |
919 // the same place. The cast is to avoid virtual call and assertion. | |
920 instanceKlass* inst = (instanceKlass*)target_klass()->klass_part(); | |
921 method = methodHandle(THREAD, inst->method_at_vtable(index)); | |
922 } | |
923 if (!method.is_null()) { | |
924 // Check for abstract methods as well | |
925 if (method->is_abstract()) { | |
926 // new default: 6531596 | |
927 if (ReflectionWrapResolutionErrors) { | |
928 ResourceMark rm(THREAD); | |
929 Handle h_origexception = Exceptions::new_exception(THREAD, | |
930 vmSymbols::java_lang_AbstractMethodError(), | |
931 methodOopDesc::name_and_sig_as_C_string(Klass::cast(target_klass()), | |
932 method->name(), | |
933 method->signature())); | |
934 JavaCallArguments args(h_origexception); | |
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935 THROW_ARG_0(vmSymbols::java_lang_reflect_InvocationTargetException(), |
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936 vmSymbols::throwable_void_signature(), |
0 | 937 &args); |
938 } else { | |
939 ResourceMark rm(THREAD); | |
940 THROW_MSG_0(vmSymbols::java_lang_AbstractMethodError(), | |
941 methodOopDesc::name_and_sig_as_C_string(Klass::cast(target_klass()), | |
942 method->name(), | |
943 method->signature())); | |
944 } | |
945 } | |
946 } | |
947 } | |
948 } | |
949 } | |
950 | |
951 // I believe this is a ShouldNotGetHere case which requires | |
952 // an internal vtable bug. If you ever get this please let Karen know. | |
953 if (method.is_null()) { | |
954 ResourceMark rm(THREAD); | |
955 THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), | |
956 methodOopDesc::name_and_sig_as_C_string(Klass::cast(klass()), | |
957 reflected_method->name(), | |
958 reflected_method->signature())); | |
959 } | |
960 | |
961 // In the JDK 1.4 reflection implementation, the security check is | |
962 // done at the Java level | |
963 if (!(JDK_Version::is_gte_jdk14x_version() && UseNewReflection)) { | |
964 | |
965 // Access checking (unless overridden by Method) | |
966 if (!override) { | |
967 if (!(klass->is_public() && reflected_method->is_public())) { | |
968 bool access = Reflection::reflect_check_access(klass(), reflected_method->access_flags(), target_klass(), is_method_invoke, CHECK_NULL); | |
969 if (!access) { | |
970 return NULL; // exception | |
971 } | |
972 } | |
973 } | |
974 | |
975 } // !(Universe::is_gte_jdk14x_version() && UseNewReflection) | |
976 | |
977 assert(ptypes->is_objArray(), "just checking"); | |
978 int args_len = args.is_null() ? 0 : args->length(); | |
979 // Check number of arguments | |
980 if (ptypes->length() != args_len) { | |
981 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "wrong number of arguments"); | |
982 } | |
983 | |
984 // Create object to contain parameters for the JavaCall | |
985 JavaCallArguments java_args(method->size_of_parameters()); | |
986 | |
987 if (!is_static) { | |
988 java_args.push_oop(receiver); | |
989 } | |
990 | |
991 for (int i = 0; i < args_len; i++) { | |
992 oop type_mirror = ptypes->obj_at(i); | |
993 oop arg = args->obj_at(i); | |
994 if (java_lang_Class::is_primitive(type_mirror)) { | |
995 jvalue value; | |
996 BasicType ptype = basic_type_mirror_to_basic_type(type_mirror, CHECK_NULL); | |
997 BasicType atype = unbox_for_primitive(arg, &value, CHECK_NULL); | |
998 if (ptype != atype) { | |
999 widen(&value, atype, ptype, CHECK_NULL); | |
1000 } | |
1001 switch (ptype) { | |
1002 case T_BOOLEAN: java_args.push_int(value.z); break; | |
1003 case T_CHAR: java_args.push_int(value.c); break; | |
1004 case T_BYTE: java_args.push_int(value.b); break; | |
1005 case T_SHORT: java_args.push_int(value.s); break; | |
1006 case T_INT: java_args.push_int(value.i); break; | |
1007 case T_LONG: java_args.push_long(value.j); break; | |
1008 case T_FLOAT: java_args.push_float(value.f); break; | |
1009 case T_DOUBLE: java_args.push_double(value.d); break; | |
1010 default: | |
1011 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "argument type mismatch"); | |
1012 } | |
1013 } else { | |
1014 if (arg != NULL) { | |
1015 klassOop k = java_lang_Class::as_klassOop(type_mirror); | |
1016 if (!arg->is_a(k)) { | |
1017 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "argument type mismatch"); | |
1018 } | |
1019 } | |
1020 Handle arg_handle(THREAD, arg); // Create handle for argument | |
1021 java_args.push_oop(arg_handle); // Push handle | |
1022 } | |
1023 } | |
1024 | |
1025 assert(java_args.size_of_parameters() == method->size_of_parameters(), "just checking"); | |
1026 | |
1027 // All oops (including receiver) is passed in as Handles. An potential oop is returned as an | |
1028 // oop (i.e., NOT as an handle) | |
1029 JavaValue result(rtype); | |
1030 JavaCalls::call(&result, method, &java_args, THREAD); | |
1031 | |
1032 if (HAS_PENDING_EXCEPTION) { | |
1033 // Method threw an exception; wrap it in an InvocationTargetException | |
1034 oop target_exception = PENDING_EXCEPTION; | |
1035 CLEAR_PENDING_EXCEPTION; | |
1036 JavaCallArguments args(Handle(THREAD, target_exception)); | |
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1037 THROW_ARG_0(vmSymbols::java_lang_reflect_InvocationTargetException(), |
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1038 vmSymbols::throwable_void_signature(), |
0 | 1039 &args); |
1040 } else { | |
1041 if (rtype == T_BOOLEAN || rtype == T_BYTE || rtype == T_CHAR || rtype == T_SHORT) | |
1042 narrow((jvalue*) result.get_value_addr(), rtype, CHECK_NULL); | |
1043 return box((jvalue*) result.get_value_addr(), rtype, CHECK_NULL); | |
1044 } | |
1045 } | |
1046 | |
1047 | |
1048 void Reflection::narrow(jvalue* value, BasicType narrow_type, TRAPS) { | |
1049 switch (narrow_type) { | |
1050 case T_BOOLEAN: | |
1051 value->z = (jboolean) value->i; | |
1052 return; | |
1053 case T_BYTE: | |
1054 value->b = (jbyte) value->i; | |
1055 return; | |
1056 case T_CHAR: | |
1057 value->c = (jchar) value->i; | |
1058 return; | |
1059 case T_SHORT: | |
1060 value->s = (jshort) value->i; | |
1061 return; | |
1062 default: | |
1063 break; // fail | |
1064 } | |
1065 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), "argument type mismatch"); | |
1066 } | |
1067 | |
1068 | |
1069 BasicType Reflection::basic_type_mirror_to_basic_type(oop basic_type_mirror, TRAPS) { | |
1070 assert(java_lang_Class::is_primitive(basic_type_mirror), "just checking"); | |
1071 return java_lang_Class::primitive_type(basic_type_mirror); | |
1072 } | |
1073 | |
1074 // This would be nicer if, say, java.lang.reflect.Method was a subclass | |
1075 // of java.lang.reflect.Constructor | |
1076 | |
1077 oop Reflection::invoke_method(oop method_mirror, Handle receiver, objArrayHandle args, TRAPS) { | |
1078 oop mirror = java_lang_reflect_Method::clazz(method_mirror); | |
1079 int slot = java_lang_reflect_Method::slot(method_mirror); | |
1080 bool override = java_lang_reflect_Method::override(method_mirror) != 0; | |
1081 objArrayHandle ptypes(THREAD, objArrayOop(java_lang_reflect_Method::parameter_types(method_mirror))); | |
1082 | |
1083 oop return_type_mirror = java_lang_reflect_Method::return_type(method_mirror); | |
1084 BasicType rtype; | |
1085 if (java_lang_Class::is_primitive(return_type_mirror)) { | |
1086 rtype = basic_type_mirror_to_basic_type(return_type_mirror, CHECK_NULL); | |
1087 } else { | |
1088 rtype = T_OBJECT; | |
1089 } | |
1090 | |
1091 instanceKlassHandle klass(THREAD, java_lang_Class::as_klassOop(mirror)); | |
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1092 methodOop m = klass->method_with_idnum(slot); |
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1093 if (m == NULL) { |
0 | 1094 THROW_MSG_0(vmSymbols::java_lang_InternalError(), "invoke"); |
1095 } | |
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1096 methodHandle method(THREAD, m); |
0 | 1097 |
1098 return invoke(klass, method, receiver, override, ptypes, rtype, args, true, THREAD); | |
1099 } | |
1100 | |
1101 | |
1102 oop Reflection::invoke_constructor(oop constructor_mirror, objArrayHandle args, TRAPS) { | |
1103 oop mirror = java_lang_reflect_Constructor::clazz(constructor_mirror); | |
1104 int slot = java_lang_reflect_Constructor::slot(constructor_mirror); | |
1105 bool override = java_lang_reflect_Constructor::override(constructor_mirror) != 0; | |
1106 objArrayHandle ptypes(THREAD, objArrayOop(java_lang_reflect_Constructor::parameter_types(constructor_mirror))); | |
1107 | |
1108 instanceKlassHandle klass(THREAD, java_lang_Class::as_klassOop(mirror)); | |
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1109 methodOop m = klass->method_with_idnum(slot); |
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1110 if (m == NULL) { |
0 | 1111 THROW_MSG_0(vmSymbols::java_lang_InternalError(), "invoke"); |
1112 } | |
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1113 methodHandle method(THREAD, m); |
0 | 1114 assert(method->name() == vmSymbols::object_initializer_name(), "invalid constructor"); |
1115 | |
1116 // Make sure klass gets initialize | |
1117 klass->initialize(CHECK_NULL); | |
1118 | |
1119 // Create new instance (the receiver) | |
1120 klass->check_valid_for_instantiation(false, CHECK_NULL); | |
1121 Handle receiver = klass->allocate_instance_handle(CHECK_NULL); | |
1122 | |
1123 // Ignore result from call and return receiver | |
1124 invoke(klass, method, receiver, override, ptypes, T_VOID, args, false, CHECK_NULL); | |
1125 return receiver(); | |
1126 } |