Mercurial > hg > truffle
annotate src/share/vm/classfile/dictionary.cpp @ 8071:bbc7936779f9
8006398: Add regression tests for deprectated GCs
Reviewed-by: ehelin, jwilhelm, jmasa
author | brutisso |
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date | Thu, 14 Feb 2013 09:11:43 +0100 |
parents | 90273fc0a981 |
children | 1f9994892f89 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 2003, 2012, 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/dictionary.hpp" | |
27 #include "classfile/systemDictionary.hpp" | |
28 #include "oops/oop.inline.hpp" | |
29 #include "prims/jvmtiRedefineClassesTrace.hpp" | |
30 #include "services/classLoadingService.hpp" | |
31 #include "utilities/hashtable.inline.hpp" | |
0 | 32 |
33 | |
34 DictionaryEntry* Dictionary::_current_class_entry = NULL; | |
35 int Dictionary::_current_class_index = 0; | |
36 | |
37 | |
38 Dictionary::Dictionary(int table_size) | |
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39 : TwoOopHashtable<Klass*, mtClass>(table_size, sizeof(DictionaryEntry)) { |
0 | 40 _current_class_index = 0; |
41 _current_class_entry = NULL; | |
42 }; | |
43 | |
44 | |
45 | |
6197 | 46 Dictionary::Dictionary(int table_size, HashtableBucket<mtClass>* t, |
0 | 47 int number_of_entries) |
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48 : TwoOopHashtable<Klass*, mtClass>(table_size, sizeof(DictionaryEntry), t, number_of_entries) { |
0 | 49 _current_class_index = 0; |
50 _current_class_entry = NULL; | |
51 }; | |
52 | |
53 | |
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54 DictionaryEntry* Dictionary::new_entry(unsigned int hash, Klass* klass, |
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55 ClassLoaderData* loader_data) { |
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56 DictionaryEntry* entry = (DictionaryEntry*)Hashtable<Klass*, mtClass>::new_entry(hash, klass); |
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57 entry->set_loader_data(loader_data); |
0 | 58 entry->set_pd_set(NULL); |
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59 assert(klass->oop_is_instance(), "Must be"); |
0 | 60 return entry; |
61 } | |
62 | |
63 | |
64 void Dictionary::free_entry(DictionaryEntry* entry) { | |
65 // avoid recursion when deleting linked list | |
66 while (entry->pd_set() != NULL) { | |
67 ProtectionDomainEntry* to_delete = entry->pd_set(); | |
68 entry->set_pd_set(to_delete->next()); | |
69 delete to_delete; | |
70 } | |
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71 Hashtable<Klass*, mtClass>::free_entry(entry); |
0 | 72 } |
73 | |
74 | |
75 bool DictionaryEntry::contains_protection_domain(oop protection_domain) const { | |
76 #ifdef ASSERT | |
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77 if (protection_domain == InstanceKlass::cast(klass())->protection_domain()) { |
0 | 78 // Ensure this doesn't show up in the pd_set (invariant) |
79 bool in_pd_set = false; | |
80 for (ProtectionDomainEntry* current = _pd_set; | |
81 current != NULL; | |
82 current = current->next()) { | |
83 if (current->protection_domain() == protection_domain) { | |
84 in_pd_set = true; | |
85 break; | |
86 } | |
87 } | |
88 if (in_pd_set) { | |
89 assert(false, "A klass's protection domain should not show up " | |
90 "in its sys. dict. PD set"); | |
91 } | |
92 } | |
93 #endif /* ASSERT */ | |
94 | |
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95 if (protection_domain == InstanceKlass::cast(klass())->protection_domain()) { |
0 | 96 // Succeeds trivially |
97 return true; | |
98 } | |
99 | |
100 for (ProtectionDomainEntry* current = _pd_set; | |
101 current != NULL; | |
102 current = current->next()) { | |
103 if (current->protection_domain() == protection_domain) return true; | |
104 } | |
105 return false; | |
106 } | |
107 | |
108 | |
109 void DictionaryEntry::add_protection_domain(oop protection_domain) { | |
110 assert_locked_or_safepoint(SystemDictionary_lock); | |
111 if (!contains_protection_domain(protection_domain)) { | |
112 ProtectionDomainEntry* new_head = | |
113 new ProtectionDomainEntry(protection_domain, _pd_set); | |
114 // Warning: Preserve store ordering. The SystemDictionary is read | |
115 // without locks. The new ProtectionDomainEntry must be | |
116 // complete before other threads can be allowed to see it | |
117 // via a store to _pd_set. | |
118 OrderAccess::release_store_ptr(&_pd_set, new_head); | |
119 } | |
120 if (TraceProtectionDomainVerification && WizardMode) { | |
121 print(); | |
122 } | |
123 } | |
124 | |
125 | |
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126 bool Dictionary::do_unloading() { |
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127 assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint"); |
0 | 128 bool class_was_unloaded = false; |
129 int index = 0; // Defined here for portability! Do not move | |
130 | |
131 // Remove unloadable entries and classes from system dictionary | |
132 // The placeholder array has been handled in always_strong_oops_do. | |
133 DictionaryEntry* probe = NULL; | |
134 for (index = 0; index < table_size(); index++) { | |
135 for (DictionaryEntry** p = bucket_addr(index); *p != NULL; ) { | |
136 probe = *p; | |
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137 Klass* e = probe->klass(); |
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138 ClassLoaderData* loader_data = probe->loader_data(); |
0 | 139 |
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140 InstanceKlass* ik = InstanceKlass::cast(e); |
0 | 141 |
142 // Non-unloadable classes were handled in always_strong_oops_do | |
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143 if (!is_strongly_reachable(loader_data, e)) { |
0 | 144 // Entry was not visited in phase1 (negated test from phase1) |
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145 assert(!loader_data->is_the_null_class_loader_data(), "unloading entry with null class loader"); |
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146 ClassLoaderData* k_def_class_loader_data = ik->class_loader_data(); |
0 | 147 |
148 // Do we need to delete this system dictionary entry? | |
149 bool purge_entry = false; | |
150 | |
151 // Do we need to delete this system dictionary entry? | |
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152 if (loader_data->is_unloading()) { |
0 | 153 // If the loader is not live this entry should always be |
154 // removed (will never be looked up again). Note that this is | |
155 // not the same as unloading the referred class. | |
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156 if (k_def_class_loader_data == loader_data) { |
0 | 157 // This is the defining entry, so the referred class is about |
158 // to be unloaded. | |
159 // Notify the debugger and clean up the class. | |
160 class_was_unloaded = true; | |
161 // notify the debugger | |
162 if (JvmtiExport::should_post_class_unload()) { | |
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163 JvmtiExport::post_class_unload(ik); |
0 | 164 } |
165 | |
166 // notify ClassLoadingService of class unload | |
167 ClassLoadingService::notify_class_unloaded(ik); | |
168 | |
169 // Clean up C heap | |
170 ik->release_C_heap_structures(); | |
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171 ik->constants()->release_C_heap_structures(); |
0 | 172 } |
173 // Also remove this system dictionary entry. | |
174 purge_entry = true; | |
175 | |
176 } else { | |
177 // The loader in this entry is alive. If the klass is dead, | |
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178 // (determined by checking the defining class loader) |
0 | 179 // the loader must be an initiating loader (rather than the |
180 // defining loader). Remove this entry. | |
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181 if (k_def_class_loader_data->is_unloading()) { |
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182 // If we get here, the class_loader_data must not be the defining |
0 | 183 // loader, it must be an initiating one. |
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184 assert(k_def_class_loader_data != loader_data, |
0 | 185 "cannot have live defining loader and unreachable klass"); |
186 // Loader is live, but class and its defining loader are dead. | |
187 // Remove the entry. The class is going away. | |
188 purge_entry = true; | |
189 } | |
190 } | |
191 | |
192 if (purge_entry) { | |
193 *p = probe->next(); | |
194 if (probe == _current_class_entry) { | |
195 _current_class_entry = NULL; | |
196 } | |
197 free_entry(probe); | |
198 continue; | |
199 } | |
200 } | |
201 p = probe->next_addr(); | |
202 } | |
203 } | |
204 return class_was_unloaded; | |
205 } | |
206 | |
207 | |
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208 void Dictionary::always_strong_oops_do(OopClosure* blk) { |
0 | 209 // Follow all system classes and temporary placeholders in dictionary |
210 for (int index = 0; index < table_size(); index++) { | |
211 for (DictionaryEntry *probe = bucket(index); | |
212 probe != NULL; | |
213 probe = probe->next()) { | |
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214 Klass* e = probe->klass(); |
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215 ClassLoaderData* loader_data = probe->loader_data(); |
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216 if (is_strongly_reachable(loader_data, e)) { |
0 | 217 probe->protection_domain_set_oops_do(blk); |
218 } | |
219 } | |
220 } | |
221 } | |
222 | |
223 | |
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224 void Dictionary::always_strong_classes_do(KlassClosure* closure) { |
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225 // Follow all system classes and temporary placeholders in dictionary |
0 | 226 for (int index = 0; index < table_size(); index++) { |
227 for (DictionaryEntry* probe = bucket(index); | |
228 probe != NULL; | |
229 probe = probe->next()) { | |
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230 Klass* e = probe->klass(); |
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231 ClassLoaderData* loader_data = probe->loader_data(); |
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232 if (is_strongly_reachable(loader_data, e)) { |
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233 closure->do_klass(e); |
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234 } |
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235 } |
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236 } |
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237 } |
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238 |
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239 |
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240 // Just the classes from defining class loaders |
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241 void Dictionary::classes_do(void f(Klass*)) { |
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242 for (int index = 0; index < table_size(); index++) { |
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243 for (DictionaryEntry* probe = bucket(index); |
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244 probe != NULL; |
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245 probe = probe->next()) { |
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246 Klass* k = probe->klass(); |
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247 if (probe->loader_data() == InstanceKlass::cast(k)->class_loader_data()) { |
0 | 248 f(k); |
249 } | |
250 } | |
251 } | |
252 } | |
253 | |
254 // Added for initialize_itable_for_klass to handle exceptions | |
255 // Just the classes from defining class loaders | |
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256 void Dictionary::classes_do(void f(Klass*, TRAPS), TRAPS) { |
0 | 257 for (int index = 0; index < table_size(); index++) { |
258 for (DictionaryEntry* probe = bucket(index); | |
259 probe != NULL; | |
260 probe = probe->next()) { | |
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261 Klass* k = probe->klass(); |
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262 if (probe->loader_data() == InstanceKlass::cast(k)->class_loader_data()) { |
0 | 263 f(k, CHECK); |
264 } | |
265 } | |
266 } | |
267 } | |
268 | |
269 | |
270 // All classes, and their class loaders | |
271 // (added for helpers that use HandleMarks and ResourceMarks) | |
272 // Don't iterate over placeholders | |
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273 void Dictionary::classes_do(void f(Klass*, ClassLoaderData*, TRAPS), TRAPS) { |
0 | 274 for (int index = 0; index < table_size(); index++) { |
275 for (DictionaryEntry* probe = bucket(index); | |
276 probe != NULL; | |
277 probe = probe->next()) { | |
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278 Klass* k = probe->klass(); |
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279 f(k, probe->loader_data(), CHECK); |
0 | 280 } |
281 } | |
282 } | |
283 | |
284 | |
285 // All classes, and their class loaders | |
286 // Don't iterate over placeholders | |
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287 void Dictionary::classes_do(void f(Klass*, ClassLoaderData*)) { |
0 | 288 for (int index = 0; index < table_size(); index++) { |
289 for (DictionaryEntry* probe = bucket(index); | |
290 probe != NULL; | |
291 probe = probe->next()) { | |
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292 Klass* k = probe->klass(); |
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293 f(k, probe->loader_data()); |
0 | 294 } |
295 } | |
296 } | |
297 | |
298 | |
299 void Dictionary::oops_do(OopClosure* f) { | |
300 for (int index = 0; index < table_size(); index++) { | |
301 for (DictionaryEntry* probe = bucket(index); | |
302 probe != NULL; | |
303 probe = probe->next()) { | |
304 probe->protection_domain_set_oops_do(f); | |
305 } | |
306 } | |
307 } | |
308 | |
309 | |
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310 void Dictionary::methods_do(void f(Method*)) { |
0 | 311 for (int index = 0; index < table_size(); index++) { |
312 for (DictionaryEntry* probe = bucket(index); | |
313 probe != NULL; | |
314 probe = probe->next()) { | |
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315 Klass* k = probe->klass(); |
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316 if (probe->loader_data() == InstanceKlass::cast(k)->class_loader_data()) { |
0 | 317 // only take klass is we have the entry with the defining class loader |
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318 InstanceKlass::cast(k)->methods_do(f); |
0 | 319 } |
320 } | |
321 } | |
322 } | |
323 | |
324 | |
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325 Klass* Dictionary::try_get_next_class() { |
0 | 326 while (true) { |
327 if (_current_class_entry != NULL) { | |
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328 Klass* k = _current_class_entry->klass(); |
0 | 329 _current_class_entry = _current_class_entry->next(); |
330 return k; | |
331 } | |
332 _current_class_index = (_current_class_index + 1) % table_size(); | |
333 _current_class_entry = bucket(_current_class_index); | |
334 } | |
335 // never reached | |
336 } | |
337 | |
338 | |
339 // Add a loaded class to the system dictionary. | |
340 // Readers of the SystemDictionary aren't always locked, so _buckets | |
341 // is volatile. The store of the next field in the constructor is | |
342 // also cast to volatile; we do this to ensure store order is maintained | |
343 // by the compilers. | |
344 | |
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345 void Dictionary::add_klass(Symbol* class_name, ClassLoaderData* loader_data, |
0 | 346 KlassHandle obj) { |
347 assert_locked_or_safepoint(SystemDictionary_lock); | |
348 assert(obj() != NULL, "adding NULL obj"); | |
6983 | 349 assert(obj()->name() == class_name, "sanity check on name"); |
0 | 350 |
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351 unsigned int hash = compute_hash(class_name, loader_data); |
0 | 352 int index = hash_to_index(hash); |
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353 DictionaryEntry* entry = new_entry(hash, obj(), loader_data); |
0 | 354 add_entry(index, entry); |
355 } | |
356 | |
357 | |
358 // This routine does not lock the system dictionary. | |
359 // | |
360 // Since readers don't hold a lock, we must make sure that system | |
361 // dictionary entries are only removed at a safepoint (when only one | |
362 // thread is running), and are added to in a safe way (all links must | |
363 // be updated in an MT-safe manner). | |
364 // | |
365 // Callers should be aware that an entry could be added just after | |
366 // _buckets[index] is read here, so the caller will not see the new entry. | |
367 DictionaryEntry* Dictionary::get_entry(int index, unsigned int hash, | |
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368 Symbol* class_name, |
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369 ClassLoaderData* loader_data) { |
0 | 370 debug_only(_lookup_count++); |
371 for (DictionaryEntry* entry = bucket(index); | |
372 entry != NULL; | |
373 entry = entry->next()) { | |
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374 if (entry->hash() == hash && entry->equals(class_name, loader_data)) { |
0 | 375 return entry; |
376 } | |
377 debug_only(_lookup_length++); | |
378 } | |
379 return NULL; | |
380 } | |
381 | |
382 | |
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383 Klass* Dictionary::find(int index, unsigned int hash, Symbol* name, |
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384 ClassLoaderData* loader_data, Handle protection_domain, TRAPS) { |
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385 DictionaryEntry* entry = get_entry(index, hash, name, loader_data); |
0 | 386 if (entry != NULL && entry->is_valid_protection_domain(protection_domain)) { |
387 return entry->klass(); | |
388 } else { | |
389 return NULL; | |
390 } | |
391 } | |
392 | |
393 | |
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394 Klass* Dictionary::find_class(int index, unsigned int hash, |
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395 Symbol* name, ClassLoaderData* loader_data) { |
0 | 396 assert_locked_or_safepoint(SystemDictionary_lock); |
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397 assert (index == index_for(name, loader_data), "incorrect index?"); |
0 | 398 |
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399 DictionaryEntry* entry = get_entry(index, hash, name, loader_data); |
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400 return (entry != NULL) ? entry->klass() : (Klass*)NULL; |
0 | 401 } |
402 | |
403 | |
404 // Variant of find_class for shared classes. No locking required, as | |
405 // that table is static. | |
406 | |
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407 Klass* Dictionary::find_shared_class(int index, unsigned int hash, |
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408 Symbol* name) { |
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409 assert (index == index_for(name, NULL), "incorrect index?"); |
0 | 410 |
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411 DictionaryEntry* entry = get_entry(index, hash, name, NULL); |
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412 return (entry != NULL) ? entry->klass() : (Klass*)NULL; |
0 | 413 } |
414 | |
415 | |
416 void Dictionary::add_protection_domain(int index, unsigned int hash, | |
417 instanceKlassHandle klass, | |
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418 ClassLoaderData* loader_data, Handle protection_domain, |
0 | 419 TRAPS) { |
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420 Symbol* klass_name = klass->name(); |
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421 DictionaryEntry* entry = get_entry(index, hash, klass_name, loader_data); |
0 | 422 |
423 assert(entry != NULL,"entry must be present, we just created it"); | |
424 assert(protection_domain() != NULL, | |
425 "real protection domain should be present"); | |
426 | |
427 entry->add_protection_domain(protection_domain()); | |
428 | |
429 assert(entry->contains_protection_domain(protection_domain()), | |
430 "now protection domain should be present"); | |
431 } | |
432 | |
433 | |
434 bool Dictionary::is_valid_protection_domain(int index, unsigned int hash, | |
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435 Symbol* name, |
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436 ClassLoaderData* loader_data, |
0 | 437 Handle protection_domain) { |
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438 DictionaryEntry* entry = get_entry(index, hash, name, loader_data); |
0 | 439 return entry->is_valid_protection_domain(protection_domain); |
440 } | |
441 | |
442 | |
443 void Dictionary::reorder_dictionary() { | |
444 | |
445 // Copy all the dictionary entries into a single master list. | |
446 | |
447 DictionaryEntry* master_list = NULL; | |
448 for (int i = 0; i < table_size(); ++i) { | |
449 DictionaryEntry* p = bucket(i); | |
450 while (p != NULL) { | |
451 DictionaryEntry* tmp; | |
452 tmp = p->next(); | |
453 p->set_next(master_list); | |
454 master_list = p; | |
455 p = tmp; | |
456 } | |
457 set_entry(i, NULL); | |
458 } | |
459 | |
460 // Add the dictionary entries back to the list in the correct buckets. | |
461 while (master_list != NULL) { | |
462 DictionaryEntry* p = master_list; | |
463 master_list = master_list->next(); | |
464 p->set_next(NULL); | |
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465 Symbol* class_name = InstanceKlass::cast((Klass*)(p->klass()))->name(); |
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466 // Since the null class loader data isn't copied to the CDS archive, |
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467 // compute the hash with NULL for loader data. |
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468 unsigned int hash = compute_hash(class_name, NULL); |
0 | 469 int index = hash_to_index(hash); |
470 p->set_hash(hash); | |
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471 p->set_loader_data(NULL); // loader_data isn't copied to CDS |
0 | 472 p->set_next(bucket(index)); |
473 set_entry(index, p); | |
474 } | |
475 } | |
476 | |
710 | 477 SymbolPropertyTable::SymbolPropertyTable(int table_size) |
6197 | 478 : Hashtable<Symbol*, mtSymbol>(table_size, sizeof(SymbolPropertyEntry)) |
710 | 479 { |
480 } | |
6197 | 481 SymbolPropertyTable::SymbolPropertyTable(int table_size, HashtableBucket<mtSymbol>* t, |
710 | 482 int number_of_entries) |
6197 | 483 : Hashtable<Symbol*, mtSymbol>(table_size, sizeof(SymbolPropertyEntry), t, number_of_entries) |
710 | 484 { |
485 } | |
486 | |
487 | |
488 SymbolPropertyEntry* SymbolPropertyTable::find_entry(int index, unsigned int hash, | |
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489 Symbol* sym, |
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490 intptr_t sym_mode) { |
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491 assert(index == index_for(sym, sym_mode), "incorrect index?"); |
710 | 492 for (SymbolPropertyEntry* p = bucket(index); p != NULL; p = p->next()) { |
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493 if (p->hash() == hash && p->symbol() == sym && p->symbol_mode() == sym_mode) { |
710 | 494 return p; |
495 } | |
496 } | |
497 return NULL; | |
498 } | |
499 | |
500 | |
501 SymbolPropertyEntry* SymbolPropertyTable::add_entry(int index, unsigned int hash, | |
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502 Symbol* sym, intptr_t sym_mode) { |
710 | 503 assert_locked_or_safepoint(SystemDictionary_lock); |
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504 assert(index == index_for(sym, sym_mode), "incorrect index?"); |
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505 assert(find_entry(index, hash, sym, sym_mode) == NULL, "no double entry"); |
710 | 506 |
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507 SymbolPropertyEntry* p = new_entry(hash, sym, sym_mode); |
6197 | 508 Hashtable<Symbol*, mtSymbol>::add_entry(index, p); |
710 | 509 return p; |
510 } | |
511 | |
512 void SymbolPropertyTable::oops_do(OopClosure* f) { | |
513 for (int index = 0; index < table_size(); index++) { | |
514 for (SymbolPropertyEntry* p = bucket(index); p != NULL; p = p->next()) { | |
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515 if (p->method_type() != NULL) { |
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516 f->do_oop(p->method_type_addr()); |
710 | 517 } |
518 } | |
519 } | |
520 } | |
521 | |
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522 void SymbolPropertyTable::methods_do(void f(Method*)) { |
710 | 523 for (int index = 0; index < table_size(); index++) { |
524 for (SymbolPropertyEntry* p = bucket(index); p != NULL; p = p->next()) { | |
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525 Method* prop = p->method(); |
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526 if (prop != NULL) { |
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527 f((Method*)prop); |
710 | 528 } |
529 } | |
530 } | |
531 } | |
532 | |
0 | 533 |
534 // ---------------------------------------------------------------------------- | |
535 #ifndef PRODUCT | |
536 | |
537 void Dictionary::print() { | |
538 ResourceMark rm; | |
539 HandleMark hm; | |
540 | |
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541 tty->print_cr("Java system dictionary (table_size=%d, classes=%d)", |
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542 table_size(), number_of_entries()); |
0 | 543 tty->print_cr("^ indicates that initiating loader is different from " |
544 "defining loader"); | |
545 | |
546 for (int index = 0; index < table_size(); index++) { | |
547 for (DictionaryEntry* probe = bucket(index); | |
548 probe != NULL; | |
549 probe = probe->next()) { | |
550 if (Verbose) tty->print("%4d: ", index); | |
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551 Klass* e = probe->klass(); |
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552 ClassLoaderData* loader_data = probe->loader_data(); |
0 | 553 bool is_defining_class = |
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554 (loader_data == InstanceKlass::cast(e)->class_loader_data()); |
0 | 555 tty->print("%s%s", is_defining_class ? " " : "^", |
6983 | 556 e->external_name()); |
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557 |
0 | 558 tty->print(", loader "); |
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559 loader_data->print_value(); |
0 | 560 tty->cr(); |
561 } | |
562 } | |
563 } | |
564 | |
565 #endif | |
566 | |
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567 |
0 | 568 void Dictionary::verify() { |
569 guarantee(number_of_entries() >= 0, "Verify of system dictionary failed"); | |
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570 |
0 | 571 int element_count = 0; |
572 for (int index = 0; index < table_size(); index++) { | |
573 for (DictionaryEntry* probe = bucket(index); | |
574 probe != NULL; | |
575 probe = probe->next()) { | |
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576 Klass* e = probe->klass(); |
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577 ClassLoaderData* loader_data = probe->loader_data(); |
6983 | 578 guarantee(e->oop_is_instance(), |
0 | 579 "Verify of system dictionary failed"); |
580 // class loader must be present; a null class loader is the | |
581 // boostrap loader | |
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582 guarantee(loader_data != NULL || DumpSharedSpaces || |
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583 loader_data->class_loader() == NULL || |
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584 loader_data->class_loader()->is_instance(), |
0 | 585 "checking type of class_loader"); |
586 e->verify(); | |
587 probe->verify_protection_domain_set(); | |
588 element_count++; | |
589 } | |
590 } | |
591 guarantee(number_of_entries() == element_count, | |
592 "Verify of system dictionary failed"); | |
593 debug_only(verify_lookup_length((double)number_of_entries() / table_size())); | |
594 } | |
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595 |