Mercurial > hg > graal-jvmci-8
annotate src/share/vm/runtime/reflection.cpp @ 1972:f95d63e2154a
6989984: Use standard include model for Hospot
Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg
author | stefank |
---|---|
date | Tue, 23 Nov 2010 13:22:55 -0800 |
parents | c18cbe5936b8 |
children | 3582bf76420e |
rev | line source |
---|---|
0 | 1 /* |
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1152
diff
changeset
|
2 * Copyright (c) 1997, 2010, 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 * | |
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1152
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1152
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1152
diff
changeset
|
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()); | |
67 symbolOop s = instanceKlass::cast(vfst.method()->method_holder())->source_file_name(); | |
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
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
479 static bool under_host_klass(instanceKlass* ik, klassOop host_klass) { |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
480 DEBUG_ONLY(int inf_loop_check = 1000 * 1000 * 1000); |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
481 for (;;) { |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
482 klassOop hc = (klassOop) ik->host_klass(); |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
483 if (hc == NULL) return false; |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
484 if (hc == host_klass) return true; |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
485 ik = instanceKlass::cast(hc); |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
486 |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
487 // There's no way to make a host class loop short of patching memory. |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
488 // Therefore there cannot be a loop here unles there's another bug. |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
489 // Still, let's check for it. |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
490 assert(--inf_loop_check > 0, "no host_klass loop"); |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
491 } |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
492 } |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
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
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
498 |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
499 // If either is on the other's host_klass chain, access is OK, |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
500 // because one is inside the other. |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
501 if (under_host_klass(accessor_ik, accessee) || |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
502 under_host_klass(accessee_ik, accessor)) |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
503 return true; |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
504 |
1152
cd37471eaecc
6914206: change way of permission checking for generated MethodHandle adapters
twisti
parents:
1142
diff
changeset
|
505 // Adapter frames can access anything. |
cd37471eaecc
6914206: change way of permission checking for generated MethodHandle adapters
twisti
parents:
1142
diff
changeset
|
506 if (MethodHandleCompiler::klass_is_method_handle_adapter_holder(accessor)) |
cd37471eaecc
6914206: change way of permission checking for generated MethodHandle adapters
twisti
parents:
1142
diff
changeset
|
507 // This is an internal adapter frame from the MethodHandleCompiler. |
cd37471eaecc
6914206: change way of permission checking for generated MethodHandle adapters
twisti
parents:
1142
diff
changeset
|
508 return true; |
cd37471eaecc
6914206: change way of permission checking for generated MethodHandle adapters
twisti
parents:
1142
diff
changeset
|
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
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
431
diff
changeset
|
582 bool Reflection::is_same_package_member(klassOop class1, klassOop class2, TRAPS) { |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
431
diff
changeset
|
583 return instanceKlass::cast(class1)->is_same_package_member(class2, THREAD); |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
431
diff
changeset
|
584 } |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
431
diff
changeset
|
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
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
431
diff
changeset
|
589 // If inner_is_member, require the inner to be a member of the outer. |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
431
diff
changeset
|
590 // If !inner_is_member, require the inner to be anonymous (a non-member). |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
431
diff
changeset
|
591 // Caller is responsible for figuring out in advance which case must be true. |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
431
diff
changeset
|
592 void Reflection::check_for_inner_class(instanceKlassHandle outer, instanceKlassHandle inner, |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
431
diff
changeset
|
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
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
431
diff
changeset
|
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
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
431
diff
changeset
|
612 if (!inner_is_member && ioff != 0 && ooff == 0 && |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
431
diff
changeset
|
613 cp->klass_name_at_matches(inner, ioff)) { |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
431
diff
changeset
|
614 klassOop i = cp->klass_at(ioff, CHECK); |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
431
diff
changeset
|
615 if (i == inner()) { |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
431
diff
changeset
|
616 return; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
431
diff
changeset
|
617 } |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
431
diff
changeset
|
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, | |
625 vmSymbolHandles::java_lang_IncompatibleClassChangeError(), | |
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: | |
641 symbolOop name = ss->as_symbol(CHECK_NULL); | |
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( | |
645 symbolHandle(THREAD, name), | |
646 Handle(THREAD, loader), | |
647 Handle(THREAD, protection_domain), | |
648 true, CHECK_NULL); | |
649 if (TraceClassResolution) { | |
650 trace_class_resolution(k); | |
651 } | |
652 return k->klass_part()->java_mirror(); | |
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 | |
663 symbolHandle signature (THREAD, method->signature()); | |
664 SignatureStream ss(signature); | |
665 while (!ss.at_return_type()) { | |
666 oop mirror = get_mirror_from_signature(method, &ss, CHECK_(objArrayHandle())); | |
667 mirrors->obj_at_put(index++, mirror); | |
668 ss.next(); | |
669 } | |
670 assert(index == parameter_count, "invalid parameter count"); | |
671 if (return_type != NULL) { | |
672 // Collect return type as well | |
673 assert(ss.at_return_type(), "return type should be present"); | |
674 *return_type = get_mirror_from_signature(method, &ss, CHECK_(objArrayHandle())); | |
675 } | |
676 return mirrors; | |
677 } | |
678 | |
679 objArrayHandle Reflection::get_exception_types(methodHandle method, TRAPS) { | |
680 return method->resolved_checked_exceptions(CHECK_(objArrayHandle())); | |
681 } | |
682 | |
683 | |
684 Handle Reflection::new_type(symbolHandle signature, KlassHandle k, TRAPS) { | |
685 // Basic types | |
686 BasicType type = vmSymbols::signature_type(signature()); | |
687 if (type != T_OBJECT) { | |
688 return Handle(THREAD, Universe::java_mirror(type)); | |
689 } | |
690 | |
691 oop loader = instanceKlass::cast(k())->class_loader(); | |
692 oop protection_domain = Klass::cast(k())->protection_domain(); | |
693 klassOop result = SystemDictionary::resolve_or_fail(signature, | |
694 Handle(THREAD, loader), | |
695 Handle(THREAD, protection_domain), | |
696 true, CHECK_(Handle())); | |
697 | |
698 if (TraceClassResolution) { | |
699 trace_class_resolution(result); | |
700 } | |
701 | |
702 oop nt = Klass::cast(result)->java_mirror(); | |
703 return Handle(THREAD, nt); | |
704 } | |
705 | |
706 | |
707 oop Reflection::new_method(methodHandle method, bool intern_name, bool for_constant_pool_access, TRAPS) { | |
708 // In jdk1.2.x, getMethods on an interface erroneously includes <clinit>, thus the complicated assert. | |
709 // Also allow sun.reflect.ConstantPool to refer to <clinit> methods as java.lang.reflect.Methods. | |
710 assert(!method()->is_initializer() || | |
711 (for_constant_pool_access && method()->is_static()) || | |
712 (method()->name() == vmSymbols::class_initializer_name() | |
713 && Klass::cast(method()->method_holder())->is_interface() && JDK_Version::is_jdk12x_version()), "should call new_constructor instead"); | |
714 instanceKlassHandle holder (THREAD, method->method_holder()); | |
715 int slot = method->method_idnum(); | |
716 | |
717 symbolHandle signature (THREAD, method->signature()); | |
718 int parameter_count = ArgumentCount(signature).size(); | |
719 oop return_type_oop = NULL; | |
720 objArrayHandle parameter_types = get_parameter_types(method, parameter_count, &return_type_oop, CHECK_NULL); | |
721 if (parameter_types.is_null() || return_type_oop == NULL) return NULL; | |
722 | |
723 Handle return_type(THREAD, return_type_oop); | |
724 | |
725 objArrayHandle exception_types = get_exception_types(method, CHECK_NULL); | |
726 | |
727 if (exception_types.is_null()) return NULL; | |
728 | |
729 symbolHandle method_name(THREAD, method->name()); | |
730 Handle name; | |
731 if (intern_name) { | |
732 // intern_name is only true with UseNewReflection | |
733 oop name_oop = StringTable::intern(method_name(), CHECK_NULL); | |
734 name = Handle(THREAD, name_oop); | |
735 } else { | |
736 name = java_lang_String::create_from_symbol(method_name, CHECK_NULL); | |
737 } | |
738 if (name.is_null()) return NULL; | |
739 | |
740 int modifiers = method->access_flags().as_int() & JVM_RECOGNIZED_METHOD_MODIFIERS; | |
741 | |
742 Handle mh = java_lang_reflect_Method::create(CHECK_NULL); | |
743 | |
744 java_lang_reflect_Method::set_clazz(mh(), holder->java_mirror()); | |
745 java_lang_reflect_Method::set_slot(mh(), slot); | |
746 java_lang_reflect_Method::set_name(mh(), name()); | |
747 java_lang_reflect_Method::set_return_type(mh(), return_type()); | |
748 java_lang_reflect_Method::set_parameter_types(mh(), parameter_types()); | |
749 java_lang_reflect_Method::set_exception_types(mh(), exception_types()); | |
750 java_lang_reflect_Method::set_modifiers(mh(), modifiers); | |
751 java_lang_reflect_Method::set_override(mh(), false); | |
752 if (java_lang_reflect_Method::has_signature_field() && | |
753 method->generic_signature() != NULL) { | |
754 symbolHandle gs(THREAD, method->generic_signature()); | |
755 Handle sig = java_lang_String::create_from_symbol(gs, CHECK_NULL); | |
756 java_lang_reflect_Method::set_signature(mh(), sig()); | |
757 } | |
758 if (java_lang_reflect_Method::has_annotations_field()) { | |
759 java_lang_reflect_Method::set_annotations(mh(), method->annotations()); | |
760 } | |
761 if (java_lang_reflect_Method::has_parameter_annotations_field()) { | |
762 java_lang_reflect_Method::set_parameter_annotations(mh(), method->parameter_annotations()); | |
763 } | |
764 if (java_lang_reflect_Method::has_annotation_default_field()) { | |
765 java_lang_reflect_Method::set_annotation_default(mh(), method->annotation_default()); | |
766 } | |
767 return mh(); | |
768 } | |
769 | |
770 | |
771 oop Reflection::new_constructor(methodHandle method, TRAPS) { | |
772 assert(method()->is_initializer(), "should call new_method instead"); | |
773 | |
774 instanceKlassHandle holder (THREAD, method->method_holder()); | |
775 int slot = method->method_idnum(); | |
776 | |
777 symbolHandle signature (THREAD, method->signature()); | |
778 int parameter_count = ArgumentCount(signature).size(); | |
779 objArrayHandle parameter_types = get_parameter_types(method, parameter_count, NULL, CHECK_NULL); | |
780 if (parameter_types.is_null()) return NULL; | |
781 | |
782 objArrayHandle exception_types = get_exception_types(method, CHECK_NULL); | |
783 if (exception_types.is_null()) return NULL; | |
784 | |
785 int modifiers = method->access_flags().as_int() & JVM_RECOGNIZED_METHOD_MODIFIERS; | |
786 | |
787 Handle ch = java_lang_reflect_Constructor::create(CHECK_NULL); | |
788 | |
789 java_lang_reflect_Constructor::set_clazz(ch(), holder->java_mirror()); | |
790 java_lang_reflect_Constructor::set_slot(ch(), slot); | |
791 java_lang_reflect_Constructor::set_parameter_types(ch(), parameter_types()); | |
792 java_lang_reflect_Constructor::set_exception_types(ch(), exception_types()); | |
793 java_lang_reflect_Constructor::set_modifiers(ch(), modifiers); | |
794 java_lang_reflect_Constructor::set_override(ch(), false); | |
795 if (java_lang_reflect_Constructor::has_signature_field() && | |
796 method->generic_signature() != NULL) { | |
797 symbolHandle gs(THREAD, method->generic_signature()); | |
798 Handle sig = java_lang_String::create_from_symbol(gs, CHECK_NULL); | |
799 java_lang_reflect_Constructor::set_signature(ch(), sig()); | |
800 } | |
801 if (java_lang_reflect_Constructor::has_annotations_field()) { | |
802 java_lang_reflect_Constructor::set_annotations(ch(), method->annotations()); | |
803 } | |
804 if (java_lang_reflect_Constructor::has_parameter_annotations_field()) { | |
805 java_lang_reflect_Constructor::set_parameter_annotations(ch(), method->parameter_annotations()); | |
806 } | |
807 return ch(); | |
808 } | |
809 | |
810 | |
811 oop Reflection::new_field(fieldDescriptor* fd, bool intern_name, TRAPS) { | |
812 symbolHandle field_name(THREAD, fd->name()); | |
813 Handle name; | |
814 if (intern_name) { | |
815 // intern_name is only true with UseNewReflection | |
816 oop name_oop = StringTable::intern(field_name(), CHECK_NULL); | |
817 name = Handle(THREAD, name_oop); | |
818 } else { | |
819 name = java_lang_String::create_from_symbol(field_name, CHECK_NULL); | |
820 } | |
821 symbolHandle signature (THREAD, fd->signature()); | |
822 KlassHandle holder (THREAD, fd->field_holder()); | |
823 Handle type = new_type(signature, holder, CHECK_NULL); | |
824 Handle rh = java_lang_reflect_Field::create(CHECK_NULL); | |
825 | |
826 java_lang_reflect_Field::set_clazz(rh(), Klass::cast(fd->field_holder())->java_mirror()); | |
827 java_lang_reflect_Field::set_slot(rh(), fd->index()); | |
828 java_lang_reflect_Field::set_name(rh(), name()); | |
829 java_lang_reflect_Field::set_type(rh(), type()); | |
830 // Note the ACC_ANNOTATION bit, which is a per-class access flag, is never set here. | |
831 java_lang_reflect_Field::set_modifiers(rh(), fd->access_flags().as_int() & JVM_RECOGNIZED_FIELD_MODIFIERS); | |
832 java_lang_reflect_Field::set_override(rh(), false); | |
833 if (java_lang_reflect_Field::has_signature_field() && | |
834 fd->generic_signature() != NULL) { | |
835 symbolHandle gs(THREAD, fd->generic_signature()); | |
836 Handle sig = java_lang_String::create_from_symbol(gs, CHECK_NULL); | |
837 java_lang_reflect_Field::set_signature(rh(), sig()); | |
838 } | |
839 if (java_lang_reflect_Field::has_annotations_field()) { | |
840 java_lang_reflect_Field::set_annotations(rh(), fd->annotations()); | |
841 } | |
842 return rh(); | |
843 } | |
844 | |
845 | |
846 //--------------------------------------------------------------------------- | |
847 // | |
848 // Supporting routines for old native code-based reflection (pre-JDK 1.4). | |
849 // | |
850 // See reflection.hpp for details. | |
851 // | |
852 //--------------------------------------------------------------------------- | |
853 | |
854 #ifdef SUPPORT_OLD_REFLECTION | |
855 | |
856 methodHandle Reflection::resolve_interface_call(instanceKlassHandle klass, methodHandle method, | |
857 KlassHandle recv_klass, Handle receiver, TRAPS) { | |
858 assert(!method.is_null() , "method should not be null"); | |
859 | |
860 CallInfo info; | |
861 symbolHandle signature (THREAD, method->signature()); | |
862 symbolHandle name (THREAD, method->name()); | |
863 LinkResolver::resolve_interface_call(info, receiver, recv_klass, klass, | |
864 name, signature, | |
865 KlassHandle(), false, true, | |
866 CHECK_(methodHandle())); | |
867 return info.selected_method(); | |
868 } | |
869 | |
870 | |
871 oop Reflection::invoke(instanceKlassHandle klass, methodHandle reflected_method, | |
872 Handle receiver, bool override, objArrayHandle ptypes, | |
873 BasicType rtype, objArrayHandle args, bool is_method_invoke, TRAPS) { | |
874 ResourceMark rm(THREAD); | |
875 | |
876 methodHandle method; // actual method to invoke | |
877 KlassHandle target_klass; // target klass, receiver's klass for non-static | |
878 | |
879 // Ensure klass is initialized | |
880 klass->initialize(CHECK_NULL); | |
881 | |
882 bool is_static = reflected_method->is_static(); | |
883 if (is_static) { | |
884 // ignore receiver argument | |
885 method = reflected_method; | |
886 target_klass = klass; | |
887 } else { | |
888 // check for null receiver | |
889 if (receiver.is_null()) { | |
890 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
891 } | |
892 // Check class of receiver against class declaring method | |
893 if (!receiver->is_a(klass())) { | |
894 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "object is not an instance of declaring class"); | |
895 } | |
896 // target klass is receiver's klass | |
897 target_klass = KlassHandle(THREAD, receiver->klass()); | |
898 // no need to resolve if method is private or <init> | |
899 if (reflected_method->is_private() || reflected_method->name() == vmSymbols::object_initializer_name()) { | |
900 method = reflected_method; | |
901 } else { | |
902 // resolve based on the receiver | |
903 if (instanceKlass::cast(reflected_method->method_holder())->is_interface()) { | |
904 // resolve interface call | |
905 if (ReflectionWrapResolutionErrors) { | |
906 // new default: 6531596 | |
907 // Match resolution errors with those thrown due to reflection inlining | |
908 // Linktime resolution & IllegalAccessCheck already done by Class.getMethod() | |
909 method = resolve_interface_call(klass, reflected_method, target_klass, receiver, THREAD); | |
910 if (HAS_PENDING_EXCEPTION) { | |
911 // Method resolution threw an exception; wrap it in an InvocationTargetException | |
912 oop resolution_exception = PENDING_EXCEPTION; | |
913 CLEAR_PENDING_EXCEPTION; | |
914 JavaCallArguments args(Handle(THREAD, resolution_exception)); | |
915 THROW_ARG_0(vmSymbolHandles::java_lang_reflect_InvocationTargetException(), | |
916 vmSymbolHandles::throwable_void_signature(), | |
917 &args); | |
918 } | |
919 } else { | |
920 method = resolve_interface_call(klass, reflected_method, target_klass, receiver, CHECK_(NULL)); | |
921 } | |
922 } else { | |
923 // if the method can be overridden, we resolve using the vtable index. | |
924 int index = reflected_method->vtable_index(); | |
925 method = reflected_method; | |
926 if (index != methodOopDesc::nonvirtual_vtable_index) { | |
927 // target_klass might be an arrayKlassOop but all vtables start at | |
928 // the same place. The cast is to avoid virtual call and assertion. | |
929 instanceKlass* inst = (instanceKlass*)target_klass()->klass_part(); | |
930 method = methodHandle(THREAD, inst->method_at_vtable(index)); | |
931 } | |
932 if (!method.is_null()) { | |
933 // Check for abstract methods as well | |
934 if (method->is_abstract()) { | |
935 // new default: 6531596 | |
936 if (ReflectionWrapResolutionErrors) { | |
937 ResourceMark rm(THREAD); | |
938 Handle h_origexception = Exceptions::new_exception(THREAD, | |
939 vmSymbols::java_lang_AbstractMethodError(), | |
940 methodOopDesc::name_and_sig_as_C_string(Klass::cast(target_klass()), | |
941 method->name(), | |
942 method->signature())); | |
943 JavaCallArguments args(h_origexception); | |
944 THROW_ARG_0(vmSymbolHandles::java_lang_reflect_InvocationTargetException(), | |
945 vmSymbolHandles::throwable_void_signature(), | |
946 &args); | |
947 } else { | |
948 ResourceMark rm(THREAD); | |
949 THROW_MSG_0(vmSymbols::java_lang_AbstractMethodError(), | |
950 methodOopDesc::name_and_sig_as_C_string(Klass::cast(target_klass()), | |
951 method->name(), | |
952 method->signature())); | |
953 } | |
954 } | |
955 } | |
956 } | |
957 } | |
958 } | |
959 | |
960 // I believe this is a ShouldNotGetHere case which requires | |
961 // an internal vtable bug. If you ever get this please let Karen know. | |
962 if (method.is_null()) { | |
963 ResourceMark rm(THREAD); | |
964 THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), | |
965 methodOopDesc::name_and_sig_as_C_string(Klass::cast(klass()), | |
966 reflected_method->name(), | |
967 reflected_method->signature())); | |
968 } | |
969 | |
970 // In the JDK 1.4 reflection implementation, the security check is | |
971 // done at the Java level | |
972 if (!(JDK_Version::is_gte_jdk14x_version() && UseNewReflection)) { | |
973 | |
974 // Access checking (unless overridden by Method) | |
975 if (!override) { | |
976 if (!(klass->is_public() && reflected_method->is_public())) { | |
977 bool access = Reflection::reflect_check_access(klass(), reflected_method->access_flags(), target_klass(), is_method_invoke, CHECK_NULL); | |
978 if (!access) { | |
979 return NULL; // exception | |
980 } | |
981 } | |
982 } | |
983 | |
984 } // !(Universe::is_gte_jdk14x_version() && UseNewReflection) | |
985 | |
986 assert(ptypes->is_objArray(), "just checking"); | |
987 int args_len = args.is_null() ? 0 : args->length(); | |
988 // Check number of arguments | |
989 if (ptypes->length() != args_len) { | |
990 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "wrong number of arguments"); | |
991 } | |
992 | |
993 // Create object to contain parameters for the JavaCall | |
994 JavaCallArguments java_args(method->size_of_parameters()); | |
995 | |
996 if (!is_static) { | |
997 java_args.push_oop(receiver); | |
998 } | |
999 | |
1000 for (int i = 0; i < args_len; i++) { | |
1001 oop type_mirror = ptypes->obj_at(i); | |
1002 oop arg = args->obj_at(i); | |
1003 if (java_lang_Class::is_primitive(type_mirror)) { | |
1004 jvalue value; | |
1005 BasicType ptype = basic_type_mirror_to_basic_type(type_mirror, CHECK_NULL); | |
1006 BasicType atype = unbox_for_primitive(arg, &value, CHECK_NULL); | |
1007 if (ptype != atype) { | |
1008 widen(&value, atype, ptype, CHECK_NULL); | |
1009 } | |
1010 switch (ptype) { | |
1011 case T_BOOLEAN: java_args.push_int(value.z); break; | |
1012 case T_CHAR: java_args.push_int(value.c); break; | |
1013 case T_BYTE: java_args.push_int(value.b); break; | |
1014 case T_SHORT: java_args.push_int(value.s); break; | |
1015 case T_INT: java_args.push_int(value.i); break; | |
1016 case T_LONG: java_args.push_long(value.j); break; | |
1017 case T_FLOAT: java_args.push_float(value.f); break; | |
1018 case T_DOUBLE: java_args.push_double(value.d); break; | |
1019 default: | |
1020 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "argument type mismatch"); | |
1021 } | |
1022 } else { | |
1023 if (arg != NULL) { | |
1024 klassOop k = java_lang_Class::as_klassOop(type_mirror); | |
1025 if (!arg->is_a(k)) { | |
1026 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "argument type mismatch"); | |
1027 } | |
1028 } | |
1029 Handle arg_handle(THREAD, arg); // Create handle for argument | |
1030 java_args.push_oop(arg_handle); // Push handle | |
1031 } | |
1032 } | |
1033 | |
1034 assert(java_args.size_of_parameters() == method->size_of_parameters(), "just checking"); | |
1035 | |
1036 // All oops (including receiver) is passed in as Handles. An potential oop is returned as an | |
1037 // oop (i.e., NOT as an handle) | |
1038 JavaValue result(rtype); | |
1039 JavaCalls::call(&result, method, &java_args, THREAD); | |
1040 | |
1041 if (HAS_PENDING_EXCEPTION) { | |
1042 // Method threw an exception; wrap it in an InvocationTargetException | |
1043 oop target_exception = PENDING_EXCEPTION; | |
1044 CLEAR_PENDING_EXCEPTION; | |
1045 JavaCallArguments args(Handle(THREAD, target_exception)); | |
1046 THROW_ARG_0(vmSymbolHandles::java_lang_reflect_InvocationTargetException(), | |
1047 vmSymbolHandles::throwable_void_signature(), | |
1048 &args); | |
1049 } else { | |
1050 if (rtype == T_BOOLEAN || rtype == T_BYTE || rtype == T_CHAR || rtype == T_SHORT) | |
1051 narrow((jvalue*) result.get_value_addr(), rtype, CHECK_NULL); | |
1052 return box((jvalue*) result.get_value_addr(), rtype, CHECK_NULL); | |
1053 } | |
1054 } | |
1055 | |
1056 | |
1057 void Reflection::narrow(jvalue* value, BasicType narrow_type, TRAPS) { | |
1058 switch (narrow_type) { | |
1059 case T_BOOLEAN: | |
1060 value->z = (jboolean) value->i; | |
1061 return; | |
1062 case T_BYTE: | |
1063 value->b = (jbyte) value->i; | |
1064 return; | |
1065 case T_CHAR: | |
1066 value->c = (jchar) value->i; | |
1067 return; | |
1068 case T_SHORT: | |
1069 value->s = (jshort) value->i; | |
1070 return; | |
1071 default: | |
1072 break; // fail | |
1073 } | |
1074 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), "argument type mismatch"); | |
1075 } | |
1076 | |
1077 | |
1078 BasicType Reflection::basic_type_mirror_to_basic_type(oop basic_type_mirror, TRAPS) { | |
1079 assert(java_lang_Class::is_primitive(basic_type_mirror), "just checking"); | |
1080 return java_lang_Class::primitive_type(basic_type_mirror); | |
1081 } | |
1082 | |
1083 | |
1084 bool Reflection::match_parameter_types(methodHandle method, objArrayHandle types, int parameter_count, TRAPS) { | |
1085 int types_len = types.is_null() ? 0 : types->length(); | |
1086 if (types_len != parameter_count) return false; | |
1087 if (parameter_count > 0) { | |
1088 objArrayHandle method_types = get_parameter_types(method, parameter_count, NULL, CHECK_false); | |
1089 for (int index = 0; index < parameter_count; index++) { | |
1090 if (types->obj_at(index) != method_types->obj_at(index)) { | |
1091 return false; | |
1092 } | |
1093 } | |
1094 } | |
1095 return true; | |
1096 } | |
1097 | |
1098 | |
1099 oop Reflection::new_field(FieldStream* st, TRAPS) { | |
1100 symbolHandle field_name(THREAD, st->name()); | |
1101 Handle name = java_lang_String::create_from_symbol(field_name, CHECK_NULL); | |
1102 symbolHandle signature(THREAD, st->signature()); | |
1103 Handle type = new_type(signature, st->klass(), CHECK_NULL); | |
1104 Handle rh = java_lang_reflect_Field::create(CHECK_NULL); | |
1105 oop result = rh(); | |
1106 | |
1107 java_lang_reflect_Field::set_clazz(result, st->klass()->java_mirror()); | |
1108 java_lang_reflect_Field::set_slot(result, st->index()); | |
1109 java_lang_reflect_Field::set_name(result, name()); | |
1110 java_lang_reflect_Field::set_type(result, type()); | |
1111 // Note the ACC_ANNOTATION bit, which is a per-class access flag, is never set here. | |
1112 java_lang_reflect_Field::set_modifiers(result, st->access_flags().as_int() & JVM_RECOGNIZED_FIELD_MODIFIERS); | |
1113 java_lang_reflect_Field::set_override(result, false); | |
1114 return result; | |
1115 } | |
1116 | |
1117 | |
1118 bool Reflection::resolve_field(Handle field_mirror, Handle& receiver, fieldDescriptor* fd, bool check_final, TRAPS) { | |
1119 if (field_mirror.is_null()) { | |
1120 THROW_(vmSymbols::java_lang_NullPointerException(), false); | |
1121 } | |
1122 | |
1123 instanceKlassHandle klass (THREAD, java_lang_Class::as_klassOop(java_lang_reflect_Field::clazz(field_mirror()))); | |
1124 int slot = java_lang_reflect_Field::slot(field_mirror()); | |
1125 | |
1126 // Ensure klass is initialized | |
1127 klass->initialize(CHECK_false); | |
1128 fd->initialize(klass(), slot); | |
1129 | |
1130 bool is_static = fd->is_static(); | |
1131 KlassHandle receiver_klass; | |
1132 | |
1133 if (is_static) { | |
1134 receiver = KlassHandle(THREAD, klass()); | |
1135 receiver_klass = klass; | |
1136 } else { | |
1137 // Check object is a non-null instance of declaring class | |
1138 if (receiver.is_null()) { | |
1139 THROW_(vmSymbols::java_lang_NullPointerException(), false); | |
1140 } | |
1141 if (!receiver->is_a(klass())) { | |
1142 THROW_MSG_(vmSymbols::java_lang_IllegalArgumentException(), "object is not an instance of declaring class", false); | |
1143 } | |
1144 receiver_klass = KlassHandle(THREAD, receiver->klass()); | |
1145 } | |
1146 | |
1147 // Access checking (unless overridden by Field) | |
1148 if (!java_lang_reflect_Field::override(field_mirror())) { | |
1149 if (!(klass->is_public() && fd->is_public())) { | |
1150 bool access_check = reflect_check_access(klass(), fd->access_flags(), receiver_klass(), false, CHECK_false); | |
1151 if (!access_check) { | |
1152 return false; // exception | |
1153 } | |
1154 } | |
1155 } | |
1156 | |
1157 if (check_final && fd->is_final()) { | |
1158 // In 1.3 we always throw an error when attempting to set a final field. | |
1159 // In 1.2.x, this was allowed in the override bit was set by calling Field.setAccessible(true). | |
1160 // We currently maintain backwards compatibility. See bug 4250960. | |
1161 bool strict_final_check = !JDK_Version::is_jdk12x_version(); | |
1162 if (strict_final_check || !java_lang_reflect_Field::override(field_mirror())) { | |
1163 THROW_MSG_(vmSymbols::java_lang_IllegalAccessException(), "field is final", false); | |
1164 } | |
1165 } | |
1166 return true; | |
1167 } | |
1168 | |
1169 | |
1170 BasicType Reflection::field_get(jvalue* value, fieldDescriptor* fd, Handle receiver) { | |
1171 BasicType field_type = fd->field_type(); | |
1172 int offset = fd->offset(); | |
1173 switch (field_type) { | |
1174 case T_BOOLEAN: | |
1175 value->z = receiver->bool_field(offset); | |
1176 break; | |
1177 case T_CHAR: | |
1178 value->c = receiver->char_field(offset); | |
1179 break; | |
1180 case T_FLOAT: | |
1181 value->f = receiver->float_field(offset); | |
1182 break; | |
1183 case T_DOUBLE: | |
1184 value->d = receiver->double_field(offset); | |
1185 break; | |
1186 case T_BYTE: | |
1187 value->b = receiver->byte_field(offset); | |
1188 break; | |
1189 case T_SHORT: | |
1190 value->s = receiver->short_field(offset); | |
1191 break; | |
1192 case T_INT: | |
1193 value->i = receiver->int_field(offset); | |
1194 break; | |
1195 case T_LONG: | |
1196 value->j = receiver->long_field(offset); | |
1197 break; | |
1198 case T_OBJECT: | |
1199 case T_ARRAY: | |
1200 value->l = (jobject) receiver->obj_field(offset); | |
1201 break; | |
1202 default: | |
1203 return T_ILLEGAL; | |
1204 } | |
1205 return field_type; | |
1206 } | |
1207 | |
1208 | |
1209 void Reflection::field_set(jvalue* value, fieldDescriptor* fd, Handle receiver, BasicType value_type, TRAPS) { | |
1210 BasicType field_type = fd->field_type(); | |
1211 if (field_type != value_type) { | |
1212 widen(value, value_type, field_type, CHECK); | |
1213 } | |
1214 | |
1215 int offset = fd->offset(); | |
1216 switch (field_type) { | |
1217 case T_BOOLEAN: | |
1218 receiver->bool_field_put(offset, value->z); | |
1219 break; | |
1220 case T_CHAR: | |
1221 receiver->char_field_put(offset, value->c); | |
1222 break; | |
1223 case T_FLOAT: | |
1224 receiver->float_field_put(offset, value->f); | |
1225 break; | |
1226 case T_DOUBLE: | |
1227 receiver->double_field_put(offset, value->d); | |
1228 break; | |
1229 case T_BYTE: | |
1230 receiver->byte_field_put(offset, value->b); | |
1231 break; | |
1232 case T_SHORT: | |
1233 receiver->short_field_put(offset, value->s); | |
1234 break; | |
1235 case T_INT: | |
1236 receiver->int_field_put(offset, value->i); | |
1237 break; | |
1238 case T_LONG: | |
1239 receiver->long_field_put(offset, value->j); | |
1240 break; | |
1241 case T_OBJECT: | |
1242 case T_ARRAY: { | |
1243 Handle obj(THREAD, (oop) value->l); | |
1244 if (obj.not_null()) { | |
1245 symbolHandle signature(THREAD, fd->signature()); | |
1246 Handle loader (THREAD, fd->loader()); | |
1247 Handle protect (THREAD, Klass::cast(fd->field_holder())->protection_domain()); | |
1248 klassOop k = SystemDictionary::resolve_or_fail(signature, loader, protect, true, CHECK); // may block | |
1249 if (!obj->is_a(k)) { | |
1250 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), "field type mismatch"); | |
1251 } | |
1252 } | |
1253 receiver->obj_field_put(offset, obj()); | |
1254 break; | |
1255 } | |
1256 default: | |
1257 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), "field type mismatch"); | |
1258 } | |
1259 } | |
1260 | |
1261 | |
1262 oop Reflection::reflect_field(oop mirror, symbolOop field_name, jint which, TRAPS) { | |
1263 // Exclude primitive types and array types | |
1264 if (java_lang_Class::is_primitive(mirror)) return NULL; | |
1265 if (Klass::cast(java_lang_Class::as_klassOop(mirror))->oop_is_array()) return NULL; | |
1266 | |
1267 instanceKlassHandle k(THREAD, java_lang_Class::as_klassOop(mirror)); | |
1268 bool local_fields_only = (which == DECLARED); | |
1269 | |
1270 // Ensure class is linked | |
1271 k->link_class(CHECK_NULL); | |
1272 | |
1273 // Search class and interface fields | |
1274 for (FieldStream st(k, local_fields_only, false); !st.eos(); st.next()) { | |
1275 if (st.name() == field_name) { | |
1276 if (local_fields_only || st.access_flags().is_public()) { | |
1277 return new_field(&st, THREAD); | |
1278 } | |
1279 } | |
1280 } | |
1281 | |
1282 return NULL; | |
1283 } | |
1284 | |
1285 | |
1286 objArrayOop Reflection::reflect_fields(oop mirror, jint which, TRAPS) { | |
1287 // Exclude primitive types and array types | |
1288 if (java_lang_Class::is_primitive(mirror) | |
1289 || Klass::cast(java_lang_Class::as_klassOop(mirror))->oop_is_array()) { | |
1290 symbolHandle name = vmSymbolHandles::java_lang_reflect_Field(); | |
1291 klassOop klass = SystemDictionary::resolve_or_fail(name, true, CHECK_NULL); | |
1292 return oopFactory::new_objArray(klass, 0, CHECK_NULL); // Return empty array | |
1293 } | |
1294 | |
1295 instanceKlassHandle k(THREAD, java_lang_Class::as_klassOop(mirror)); | |
1296 | |
1297 // Ensure class is linked | |
1298 k->link_class(CHECK_NULL); | |
1299 | |
1300 bool local_fields_only = (which == DECLARED); | |
1301 int count = 0; | |
1302 { // Compute fields count for class and interface fields | |
1303 for (FieldStream st(k, local_fields_only, false); !st.eos(); st.next()) { | |
1304 if (local_fields_only || st.access_flags().is_public()) { | |
1305 count++; | |
1306 } | |
1307 } | |
1308 } | |
1309 | |
1310 // Allocate result | |
1311 symbolHandle name = vmSymbolHandles::java_lang_reflect_Field(); | |
1312 klassOop klass = SystemDictionary::resolve_or_fail(name, true, CHECK_NULL); | |
1313 objArrayOop r = oopFactory::new_objArray(klass, count, CHECK_NULL); | |
1314 objArrayHandle result (THREAD, r); | |
1315 | |
1316 // Fill in results backwards | |
1317 { | |
1318 for (FieldStream st(k, local_fields_only, false); !st.eos(); st.next()) { | |
1319 if (local_fields_only || st.access_flags().is_public()) { | |
1320 oop field = new_field(&st, CHECK_NULL); | |
1321 result->obj_at_put(--count, field); | |
1322 } | |
1323 } | |
1324 assert(count == 0, "just checking"); | |
1325 } | |
1326 return result(); | |
1327 } | |
1328 | |
1329 | |
1330 oop Reflection::reflect_method(oop mirror, symbolHandle method_name, objArrayHandle types, jint which, TRAPS) { | |
1331 if (java_lang_Class::is_primitive(mirror)) return NULL; | |
1332 klassOop klass = java_lang_Class::as_klassOop(mirror); | |
1333 if (Klass::cast(klass)->oop_is_array() && which == MEMBER_DECLARED) return NULL; | |
1334 | |
1335 if (Klass::cast(java_lang_Class::as_klassOop(mirror))->oop_is_array()) { | |
1142 | 1336 klass = SystemDictionary::Object_klass(); |
0 | 1337 } |
1338 instanceKlassHandle h_k(THREAD, klass); | |
1339 | |
1340 // Ensure klass is linked (need not be initialized) | |
1341 h_k->link_class(CHECK_NULL); | |
1342 | |
1343 // For interfaces include static initializers under jdk1.2.x (since classic does that) | |
1344 bool include_clinit = JDK_Version::is_jdk12x_version() && h_k->is_interface(); | |
1345 | |
1346 switch (which) { | |
1347 case MEMBER_PUBLIC: | |
1348 // First the public non-static methods (works if method holder is an interface) | |
1349 // Note that we can ignore checks for overridden methods, since we go up the hierarchy. | |
1350 { | |
1351 for (MethodStream st(h_k, false, false); !st.eos(); st.next()) { | |
1352 methodHandle m(THREAD, st.method()); | |
1353 // For interfaces include static initializers since classic does that! | |
1354 if (method_name() == m->name() && (include_clinit || (m->is_public() && !m->is_static() && !m->is_initializer()))) { | |
1355 symbolHandle signature(THREAD, m->signature()); | |
1356 bool parameter_match = match_parameter_types(m, types, ArgumentCount(signature).size(), CHECK_NULL); | |
1357 if (parameter_match) { | |
1358 return new_method(m, false, false, THREAD); | |
1359 } | |
1360 } | |
1361 } | |
1362 } | |
1363 // Then the public static methods (works if method holder is an interface) | |
1364 { | |
1365 for (MethodStream st(h_k, false, false); !st.eos(); st.next()) { | |
1366 methodHandle m(THREAD, st.method()); | |
1367 if (method_name() == m->name() && m->is_public() && m->is_static() && !m->is_initializer()) { | |
1368 symbolHandle signature(THREAD, m->signature()); | |
1369 bool parameter_match = match_parameter_types(m, types, ArgumentCount(signature).size(), CHECK_NULL); | |
1370 if (parameter_match) { | |
1371 return new_method(m, false, false, THREAD); | |
1372 } | |
1373 } | |
1374 } | |
1375 } | |
1376 break; | |
1377 case MEMBER_DECLARED: | |
1378 // All local methods | |
1379 { | |
1380 for (MethodStream st(h_k, true, true); !st.eos(); st.next()) { | |
1381 methodHandle m(THREAD, st.method()); | |
1382 if (method_name() == m->name() && !m->is_initializer()) { | |
1383 symbolHandle signature(THREAD, m->signature()); | |
1384 bool parameter_match = match_parameter_types(m, types, ArgumentCount(signature).size(), CHECK_NULL); | |
1385 if (parameter_match) { | |
1386 return new_method(m, false, false, THREAD); | |
1387 } | |
1388 } | |
1389 } | |
1390 } | |
1391 break; | |
1392 default: | |
1393 break; | |
1394 } | |
1395 return NULL; | |
1396 } | |
1397 | |
1398 | |
1399 objArrayOop Reflection::reflect_methods(oop mirror, jint which, TRAPS) { | |
1400 // Exclude primitive types | |
1401 if (java_lang_Class::is_primitive(mirror) || | |
1402 (Klass::cast(java_lang_Class::as_klassOop(mirror))->oop_is_array() && (which == MEMBER_DECLARED))) { | |
1142 | 1403 klassOop klass = SystemDictionary::reflect_Method_klass(); |
0 | 1404 return oopFactory::new_objArray(klass, 0, CHECK_NULL); // Return empty array |
1405 } | |
1406 | |
1407 klassOop klass = java_lang_Class::as_klassOop(mirror); | |
1408 if (Klass::cast(java_lang_Class::as_klassOop(mirror))->oop_is_array()) { | |
1142 | 1409 klass = SystemDictionary::Object_klass(); |
0 | 1410 } |
1411 instanceKlassHandle h_k(THREAD, klass); | |
1412 | |
1413 // Ensure klass is linked (need not be initialized) | |
1414 h_k->link_class(CHECK_NULL); | |
1415 | |
1416 // We search the (super)interfaces only if h_k is an interface itself | |
1417 bool is_interface = h_k->is_interface(); | |
1418 | |
1419 // For interfaces include static initializers under jdk1.2.x (since classic does that) | |
1420 bool include_clinit = JDK_Version::is_jdk12x_version() && is_interface; | |
1421 | |
1422 switch (which) { | |
1423 case MEMBER_PUBLIC: | |
1424 { | |
1425 | |
1426 // Count public methods (non-static and static) | |
1427 int count = 0; | |
1428 { | |
1429 for (MethodStream st(h_k, false, false); !st.eos(); st.next()) { | |
1430 methodOop m = st.method(); | |
1431 // For interfaces include static initializers since classic does that! | |
1432 if (include_clinit || (!m->is_initializer() && m->is_public() && !m->is_overridden_in(h_k()))) { | |
1433 count++; | |
1434 } | |
1435 } | |
1436 } | |
1437 | |
1438 // Allocate result | |
1142 | 1439 klassOop klass = SystemDictionary::reflect_Method_klass(); |
0 | 1440 objArrayOop r = oopFactory::new_objArray(klass, count, CHECK_NULL); |
1441 objArrayHandle h_result (THREAD, r); | |
1442 | |
1443 // Fill in results backwards | |
1444 { | |
1445 // First the non-static public methods | |
1446 for (MethodStream st(h_k, false, false); !st.eos(); st.next()) { | |
1447 methodHandle m (THREAD, st.method()); | |
1448 if (!m->is_static() && !m->is_initializer() && m->is_public() && !m->is_overridden_in(h_k())) { | |
1449 oop method = new_method(m, false, false, CHECK_NULL); | |
1450 if (method == NULL) { | |
1451 return NULL; | |
1452 } else { | |
1453 h_result->obj_at_put(--count, method); | |
1454 } | |
1455 } | |
1456 } | |
1457 } | |
1458 { | |
1459 // Then the static public methods | |
1460 for (MethodStream st(h_k, false, !is_interface); !st.eos(); st.next()) { | |
1461 methodHandle m (THREAD, st.method()); | |
1462 if (m->is_static() && (include_clinit || (!m->is_initializer()) && m->is_public() && !m->is_overridden_in(h_k()))) { | |
1463 oop method = new_method(m, false, false, CHECK_NULL); | |
1464 if (method == NULL) { | |
1465 return NULL; | |
1466 } else { | |
1467 h_result->obj_at_put(--count, method); | |
1468 } | |
1469 } | |
1470 } | |
1471 } | |
1472 | |
1473 assert(count == 0, "just checking"); | |
1474 return h_result(); | |
1475 } | |
1476 | |
1477 case MEMBER_DECLARED: | |
1478 { | |
1479 // Count all methods | |
1480 int count = 0; | |
1481 { | |
1482 for (MethodStream st(h_k, true, !is_interface); !st.eos(); st.next()) { | |
1483 methodOop m = st.method(); | |
1484 if (!m->is_initializer()) { | |
1485 count++; | |
1486 } | |
1487 } | |
1488 } | |
1489 // Allocate result | |
1142 | 1490 klassOop klass = SystemDictionary::reflect_Method_klass(); |
0 | 1491 objArrayOop r = oopFactory::new_objArray(klass, count, CHECK_NULL); |
1492 objArrayHandle h_result (THREAD, r); | |
1493 | |
1494 // Fill in results backwards | |
1495 { | |
1496 for (MethodStream st(h_k, true, true); !st.eos(); st.next()) { | |
1497 methodHandle m (THREAD, st.method()); | |
1498 if (!m->is_initializer()) { | |
1499 oop method = new_method(m, false, false, CHECK_NULL); | |
1500 if (method == NULL) { | |
1501 return NULL; | |
1502 } else { | |
1503 h_result->obj_at_put(--count, method); | |
1504 } | |
1505 } | |
1506 } | |
1507 } | |
1508 assert(count == 0, "just checking"); | |
1509 return h_result(); | |
1510 } | |
1511 } | |
1512 ShouldNotReachHere(); | |
1513 return NULL; | |
1514 } | |
1515 | |
1516 | |
1517 oop Reflection::reflect_constructor(oop mirror, objArrayHandle types, jint which, TRAPS) { | |
1518 | |
1519 // Exclude primitive, interface and array types | |
1520 bool prim = java_lang_Class::is_primitive(mirror); | |
1521 Klass* klass = prim ? NULL : Klass::cast(java_lang_Class::as_klassOop(mirror)); | |
1522 if (prim || klass->is_interface() || klass->oop_is_array()) return NULL; | |
1523 | |
1524 // Must be instance klass | |
1525 instanceKlassHandle h_k(THREAD, java_lang_Class::as_klassOop(mirror)); | |
1526 | |
1527 // Ensure klass is linked (need not be initialized) | |
1528 h_k->link_class(CHECK_NULL); | |
1529 | |
1530 bool local_only = (which == MEMBER_DECLARED); | |
1531 for (MethodStream st(h_k, true, true); !st.eos(); st.next()) { | |
1532 methodHandle m(THREAD, st.method()); | |
1533 if (m->name() == vmSymbols::object_initializer_name() && (local_only || m->is_public())) { | |
1534 symbolHandle signature(THREAD, m->signature()); | |
1535 bool parameter_match = match_parameter_types(m, types, ArgumentCount(signature).size(), CHECK_NULL); | |
1536 if (parameter_match) { | |
1537 return new_constructor(m, THREAD); | |
1538 } | |
1539 } | |
1540 } | |
1541 | |
1542 return NULL; | |
1543 } | |
1544 | |
1545 | |
1546 objArrayOop Reflection::reflect_constructors(oop mirror, jint which, TRAPS) { | |
1547 // Exclude primitive, interface and array types | |
1548 bool prim = java_lang_Class::is_primitive(mirror); | |
1549 Klass* k = prim ? NULL : Klass::cast(java_lang_Class::as_klassOop(mirror)); | |
1550 if (prim || k->is_interface() || k->oop_is_array()) { | |
1142 | 1551 return oopFactory::new_objArray(SystemDictionary::reflect_Constructor_klass(), 0, CHECK_NULL); // Return empty array |
0 | 1552 } |
1553 | |
1554 // Must be instanceKlass at this point | |
1555 instanceKlassHandle h_k(THREAD, java_lang_Class::as_klassOop(mirror)); | |
1556 | |
1557 // Ensure klass is linked (need not be initialized) | |
1558 h_k->link_class(CHECK_NULL); | |
1559 | |
1560 bool local_only = (which == MEMBER_DECLARED); | |
1561 int count = 0; | |
1562 { | |
1563 for (MethodStream st(h_k, true, true); !st.eos(); st.next()) { | |
1564 methodOop m = st.method(); | |
1565 if (m->name() == vmSymbols::object_initializer_name() && (local_only || m->is_public())) { | |
1566 count++; | |
1567 } | |
1568 } | |
1569 } | |
1570 | |
1571 // Allocate result | |
1572 symbolHandle name = vmSymbolHandles::java_lang_reflect_Constructor(); | |
1573 klassOop klass = SystemDictionary::resolve_or_fail(name, true, CHECK_NULL); | |
1574 objArrayOop r = oopFactory::new_objArray(klass, count, CHECK_NULL); | |
1575 objArrayHandle h_result (THREAD, r); | |
1576 | |
1577 // Fill in results backwards | |
1578 { | |
1579 for (MethodStream st(h_k, true, true); !st.eos(); st.next()) { | |
1580 methodHandle m (THREAD, st.method()); | |
1581 if (m->name() == vmSymbols::object_initializer_name() && (local_only || m->is_public())) { | |
1582 oop constr = new_constructor(m, CHECK_NULL); | |
1583 if (constr == NULL) { | |
1584 return NULL; | |
1585 } else { | |
1586 h_result->obj_at_put(--count, constr); | |
1587 } | |
1588 } | |
1589 } | |
1590 assert(count == 0, "just checking"); | |
1591 } | |
1592 return h_result(); | |
1593 } | |
1594 | |
1595 | |
1596 // This would be nicer if, say, java.lang.reflect.Method was a subclass | |
1597 // of java.lang.reflect.Constructor | |
1598 | |
1599 oop Reflection::invoke_method(oop method_mirror, Handle receiver, objArrayHandle args, TRAPS) { | |
1600 oop mirror = java_lang_reflect_Method::clazz(method_mirror); | |
1601 int slot = java_lang_reflect_Method::slot(method_mirror); | |
1602 bool override = java_lang_reflect_Method::override(method_mirror) != 0; | |
1603 objArrayHandle ptypes(THREAD, objArrayOop(java_lang_reflect_Method::parameter_types(method_mirror))); | |
1604 | |
1605 oop return_type_mirror = java_lang_reflect_Method::return_type(method_mirror); | |
1606 BasicType rtype; | |
1607 if (java_lang_Class::is_primitive(return_type_mirror)) { | |
1608 rtype = basic_type_mirror_to_basic_type(return_type_mirror, CHECK_NULL); | |
1609 } else { | |
1610 rtype = T_OBJECT; | |
1611 } | |
1612 | |
1613 instanceKlassHandle klass(THREAD, java_lang_Class::as_klassOop(mirror)); | |
51
1ffa5cdd0b7e
6667089: 3/3 multiple redefinitions of a class break reflection
dcubed
parents:
0
diff
changeset
|
1614 methodOop m = klass->method_with_idnum(slot); |
1ffa5cdd0b7e
6667089: 3/3 multiple redefinitions of a class break reflection
dcubed
parents:
0
diff
changeset
|
1615 if (m == NULL) { |
0 | 1616 THROW_MSG_0(vmSymbols::java_lang_InternalError(), "invoke"); |
1617 } | |
51
1ffa5cdd0b7e
6667089: 3/3 multiple redefinitions of a class break reflection
dcubed
parents:
0
diff
changeset
|
1618 methodHandle method(THREAD, m); |
0 | 1619 |
1620 return invoke(klass, method, receiver, override, ptypes, rtype, args, true, THREAD); | |
1621 } | |
1622 | |
1623 | |
1624 oop Reflection::invoke_constructor(oop constructor_mirror, objArrayHandle args, TRAPS) { | |
1625 oop mirror = java_lang_reflect_Constructor::clazz(constructor_mirror); | |
1626 int slot = java_lang_reflect_Constructor::slot(constructor_mirror); | |
1627 bool override = java_lang_reflect_Constructor::override(constructor_mirror) != 0; | |
1628 objArrayHandle ptypes(THREAD, objArrayOop(java_lang_reflect_Constructor::parameter_types(constructor_mirror))); | |
1629 | |
1630 instanceKlassHandle klass(THREAD, java_lang_Class::as_klassOop(mirror)); | |
51
1ffa5cdd0b7e
6667089: 3/3 multiple redefinitions of a class break reflection
dcubed
parents:
0
diff
changeset
|
1631 methodOop m = klass->method_with_idnum(slot); |
1ffa5cdd0b7e
6667089: 3/3 multiple redefinitions of a class break reflection
dcubed
parents:
0
diff
changeset
|
1632 if (m == NULL) { |
0 | 1633 THROW_MSG_0(vmSymbols::java_lang_InternalError(), "invoke"); |
1634 } | |
51
1ffa5cdd0b7e
6667089: 3/3 multiple redefinitions of a class break reflection
dcubed
parents:
0
diff
changeset
|
1635 methodHandle method(THREAD, m); |
0 | 1636 assert(method->name() == vmSymbols::object_initializer_name(), "invalid constructor"); |
1637 | |
1638 // Make sure klass gets initialize | |
1639 klass->initialize(CHECK_NULL); | |
1640 | |
1641 // Create new instance (the receiver) | |
1642 klass->check_valid_for_instantiation(false, CHECK_NULL); | |
1643 Handle receiver = klass->allocate_instance_handle(CHECK_NULL); | |
1644 | |
1645 // Ignore result from call and return receiver | |
1646 invoke(klass, method, receiver, override, ptypes, T_VOID, args, false, CHECK_NULL); | |
1647 return receiver(); | |
1648 } | |
1649 | |
1650 | |
1651 #endif /* SUPPORT_OLD_REFLECTION */ |