Fri, 12 Apr 2013 15:22:08 -0700
8012048: JDK8 b85 source with GPL header errors
Reviewed-by: iris, mduigou, jjg
1 /*
2 * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved.
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 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
25 #include "precompiled.hpp"
26 #include "classfile/systemDictionary.hpp"
27 #include "classfile/vmSymbols.hpp"
28 #include "gc_implementation/shared/mutableSpace.hpp"
29 #include "memory/collectorPolicy.hpp"
30 #include "memory/defNewGeneration.hpp"
31 #include "memory/genCollectedHeap.hpp"
32 #include "memory/generation.hpp"
33 #include "memory/generationSpec.hpp"
34 #include "memory/heap.hpp"
35 #include "memory/memRegion.hpp"
36 #include "memory/tenuredGeneration.hpp"
37 #include "oops/oop.inline.hpp"
38 #include "runtime/javaCalls.hpp"
39 #include "services/classLoadingService.hpp"
40 #include "services/lowMemoryDetector.hpp"
41 #include "services/management.hpp"
42 #include "services/memoryManager.hpp"
43 #include "services/memoryPool.hpp"
44 #include "services/memoryService.hpp"
45 #include "utilities/growableArray.hpp"
46 #include "utilities/macros.hpp"
47 #if INCLUDE_ALL_GCS
48 #include "gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.hpp"
49 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp"
50 #include "gc_implementation/parNew/parNewGeneration.hpp"
51 #include "gc_implementation/parallelScavenge/parallelScavengeHeap.hpp"
52 #include "gc_implementation/parallelScavenge/psOldGen.hpp"
53 #include "gc_implementation/parallelScavenge/psYoungGen.hpp"
54 #include "services/g1MemoryPool.hpp"
55 #include "services/psMemoryPool.hpp"
56 #endif // INCLUDE_ALL_GCS
58 GrowableArray<MemoryPool*>* MemoryService::_pools_list =
59 new (ResourceObj::C_HEAP, mtInternal) GrowableArray<MemoryPool*>(init_pools_list_size, true);
60 GrowableArray<MemoryManager*>* MemoryService::_managers_list =
61 new (ResourceObj::C_HEAP, mtInternal) GrowableArray<MemoryManager*>(init_managers_list_size, true);
63 GCMemoryManager* MemoryService::_minor_gc_manager = NULL;
64 GCMemoryManager* MemoryService::_major_gc_manager = NULL;
65 MemoryPool* MemoryService::_code_heap_pool = NULL;
67 class GcThreadCountClosure: public ThreadClosure {
68 private:
69 int _count;
70 public:
71 GcThreadCountClosure() : _count(0) {};
72 void do_thread(Thread* thread);
73 int count() { return _count; }
74 };
76 void GcThreadCountClosure::do_thread(Thread* thread) {
77 _count++;
78 }
80 void MemoryService::set_universe_heap(CollectedHeap* heap) {
81 CollectedHeap::Name kind = heap->kind();
82 switch (kind) {
83 case CollectedHeap::GenCollectedHeap : {
84 add_gen_collected_heap_info(GenCollectedHeap::heap());
85 break;
86 }
87 #if INCLUDE_ALL_GCS
88 case CollectedHeap::ParallelScavengeHeap : {
89 add_parallel_scavenge_heap_info(ParallelScavengeHeap::heap());
90 break;
91 }
92 case CollectedHeap::G1CollectedHeap : {
93 add_g1_heap_info(G1CollectedHeap::heap());
94 break;
95 }
96 #endif // INCLUDE_ALL_GCS
97 default: {
98 guarantee(false, "Unrecognized kind of heap");
99 }
100 }
102 // set the GC thread count
103 GcThreadCountClosure gctcc;
104 heap->gc_threads_do(&gctcc);
105 int count = gctcc.count();
106 if (count > 0) {
107 _minor_gc_manager->set_num_gc_threads(count);
108 _major_gc_manager->set_num_gc_threads(count);
109 }
111 // All memory pools and memory managers are initialized.
112 //
113 _minor_gc_manager->initialize_gc_stat_info();
114 _major_gc_manager->initialize_gc_stat_info();
115 }
117 // Add memory pools for GenCollectedHeap
118 // This function currently only supports two generations collected heap.
119 // The collector for GenCollectedHeap will have two memory managers.
120 void MemoryService::add_gen_collected_heap_info(GenCollectedHeap* heap) {
121 CollectorPolicy* policy = heap->collector_policy();
123 assert(policy->is_two_generation_policy(), "Only support two generations");
124 guarantee(heap->n_gens() == 2, "Only support two-generation heap");
126 TwoGenerationCollectorPolicy* two_gen_policy = policy->as_two_generation_policy();
127 if (two_gen_policy != NULL) {
128 GenerationSpec** specs = two_gen_policy->generations();
129 Generation::Name kind = specs[0]->name();
130 switch (kind) {
131 case Generation::DefNew:
132 _minor_gc_manager = MemoryManager::get_copy_memory_manager();
133 break;
134 #if INCLUDE_ALL_GCS
135 case Generation::ParNew:
136 case Generation::ASParNew:
137 _minor_gc_manager = MemoryManager::get_parnew_memory_manager();
138 break;
139 #endif // INCLUDE_ALL_GCS
140 default:
141 guarantee(false, "Unrecognized generation spec");
142 break;
143 }
144 if (policy->is_mark_sweep_policy()) {
145 _major_gc_manager = MemoryManager::get_msc_memory_manager();
146 #if INCLUDE_ALL_GCS
147 } else if (policy->is_concurrent_mark_sweep_policy()) {
148 _major_gc_manager = MemoryManager::get_cms_memory_manager();
149 #endif // INCLUDE_ALL_GCS
150 } else {
151 guarantee(false, "Unknown two-gen policy");
152 }
153 } else {
154 guarantee(false, "Non two-gen policy");
155 }
156 _managers_list->append(_minor_gc_manager);
157 _managers_list->append(_major_gc_manager);
159 add_generation_memory_pool(heap->get_gen(minor), _major_gc_manager, _minor_gc_manager);
160 add_generation_memory_pool(heap->get_gen(major), _major_gc_manager);
161 }
163 #if INCLUDE_ALL_GCS
164 // Add memory pools for ParallelScavengeHeap
165 // This function currently only supports two generations collected heap.
166 // The collector for ParallelScavengeHeap will have two memory managers.
167 void MemoryService::add_parallel_scavenge_heap_info(ParallelScavengeHeap* heap) {
168 // Two managers to keep statistics about _minor_gc_manager and _major_gc_manager GC.
169 _minor_gc_manager = MemoryManager::get_psScavenge_memory_manager();
170 _major_gc_manager = MemoryManager::get_psMarkSweep_memory_manager();
171 _managers_list->append(_minor_gc_manager);
172 _managers_list->append(_major_gc_manager);
174 add_psYoung_memory_pool(heap->young_gen(), _major_gc_manager, _minor_gc_manager);
175 add_psOld_memory_pool(heap->old_gen(), _major_gc_manager);
176 }
178 void MemoryService::add_g1_heap_info(G1CollectedHeap* g1h) {
179 assert(UseG1GC, "sanity");
181 _minor_gc_manager = MemoryManager::get_g1YoungGen_memory_manager();
182 _major_gc_manager = MemoryManager::get_g1OldGen_memory_manager();
183 _managers_list->append(_minor_gc_manager);
184 _managers_list->append(_major_gc_manager);
186 add_g1YoungGen_memory_pool(g1h, _major_gc_manager, _minor_gc_manager);
187 add_g1OldGen_memory_pool(g1h, _major_gc_manager);
188 }
189 #endif // INCLUDE_ALL_GCS
191 MemoryPool* MemoryService::add_gen(Generation* gen,
192 const char* name,
193 bool is_heap,
194 bool support_usage_threshold) {
196 MemoryPool::PoolType type = (is_heap ? MemoryPool::Heap : MemoryPool::NonHeap);
197 GenerationPool* pool = new GenerationPool(gen, name, type, support_usage_threshold);
198 _pools_list->append(pool);
199 return (MemoryPool*) pool;
200 }
202 MemoryPool* MemoryService::add_space(ContiguousSpace* space,
203 const char* name,
204 bool is_heap,
205 size_t max_size,
206 bool support_usage_threshold) {
207 MemoryPool::PoolType type = (is_heap ? MemoryPool::Heap : MemoryPool::NonHeap);
208 ContiguousSpacePool* pool = new ContiguousSpacePool(space, name, type, max_size, support_usage_threshold);
210 _pools_list->append(pool);
211 return (MemoryPool*) pool;
212 }
214 MemoryPool* MemoryService::add_survivor_spaces(DefNewGeneration* gen,
215 const char* name,
216 bool is_heap,
217 size_t max_size,
218 bool support_usage_threshold) {
219 MemoryPool::PoolType type = (is_heap ? MemoryPool::Heap : MemoryPool::NonHeap);
220 SurvivorContiguousSpacePool* pool = new SurvivorContiguousSpacePool(gen, name, type, max_size, support_usage_threshold);
222 _pools_list->append(pool);
223 return (MemoryPool*) pool;
224 }
226 #if INCLUDE_ALL_GCS
227 MemoryPool* MemoryService::add_cms_space(CompactibleFreeListSpace* space,
228 const char* name,
229 bool is_heap,
230 size_t max_size,
231 bool support_usage_threshold) {
232 MemoryPool::PoolType type = (is_heap ? MemoryPool::Heap : MemoryPool::NonHeap);
233 CompactibleFreeListSpacePool* pool = new CompactibleFreeListSpacePool(space, name, type, max_size, support_usage_threshold);
234 _pools_list->append(pool);
235 return (MemoryPool*) pool;
236 }
237 #endif // INCLUDE_ALL_GCS
239 // Add memory pool(s) for one generation
240 void MemoryService::add_generation_memory_pool(Generation* gen,
241 MemoryManager* major_mgr,
242 MemoryManager* minor_mgr) {
243 guarantee(gen != NULL, "No generation for memory pool");
244 Generation::Name kind = gen->kind();
245 int index = _pools_list->length();
247 switch (kind) {
248 case Generation::DefNew: {
249 assert(major_mgr != NULL && minor_mgr != NULL, "Should have two managers");
250 DefNewGeneration* young_gen = (DefNewGeneration*) gen;
251 // Add a memory pool for each space and young gen doesn't
252 // support low memory detection as it is expected to get filled up.
253 MemoryPool* eden = add_space(young_gen->eden(),
254 "Eden Space",
255 true, /* is_heap */
256 young_gen->max_eden_size(),
257 false /* support_usage_threshold */);
258 MemoryPool* survivor = add_survivor_spaces(young_gen,
259 "Survivor Space",
260 true, /* is_heap */
261 young_gen->max_survivor_size(),
262 false /* support_usage_threshold */);
263 break;
264 }
266 #if INCLUDE_ALL_GCS
267 case Generation::ParNew:
268 case Generation::ASParNew:
269 {
270 assert(major_mgr != NULL && minor_mgr != NULL, "Should have two managers");
271 // Add a memory pool for each space and young gen doesn't
272 // support low memory detection as it is expected to get filled up.
273 ParNewGeneration* parnew_gen = (ParNewGeneration*) gen;
274 MemoryPool* eden = add_space(parnew_gen->eden(),
275 "Par Eden Space",
276 true /* is_heap */,
277 parnew_gen->max_eden_size(),
278 false /* support_usage_threshold */);
279 MemoryPool* survivor = add_survivor_spaces(parnew_gen,
280 "Par Survivor Space",
281 true, /* is_heap */
282 parnew_gen->max_survivor_size(),
283 false /* support_usage_threshold */);
285 break;
286 }
287 #endif // INCLUDE_ALL_GCS
289 case Generation::MarkSweepCompact: {
290 assert(major_mgr != NULL && minor_mgr == NULL, "Should have only one manager");
291 add_gen(gen,
292 "Tenured Gen",
293 true, /* is_heap */
294 true /* support_usage_threshold */);
295 break;
296 }
298 #if INCLUDE_ALL_GCS
299 case Generation::ConcurrentMarkSweep:
300 case Generation::ASConcurrentMarkSweep:
301 {
302 assert(major_mgr != NULL && minor_mgr == NULL, "Should have only one manager");
303 ConcurrentMarkSweepGeneration* cms = (ConcurrentMarkSweepGeneration*) gen;
304 MemoryPool* pool = add_cms_space(cms->cmsSpace(),
305 "CMS Old Gen",
306 true, /* is_heap */
307 cms->reserved().byte_size(),
308 true /* support_usage_threshold */);
309 break;
310 }
311 #endif // INCLUDE_ALL_GCS
313 default:
314 assert(false, "should not reach here");
315 // no memory pool added for others
316 break;
317 }
319 assert(major_mgr != NULL, "Should have at least one manager");
320 // Link managers and the memory pools together
321 for (int i = index; i < _pools_list->length(); i++) {
322 MemoryPool* pool = _pools_list->at(i);
323 major_mgr->add_pool(pool);
324 if (minor_mgr != NULL) {
325 minor_mgr->add_pool(pool);
326 }
327 }
328 }
331 #if INCLUDE_ALL_GCS
332 void MemoryService::add_psYoung_memory_pool(PSYoungGen* gen, MemoryManager* major_mgr, MemoryManager* minor_mgr) {
333 assert(major_mgr != NULL && minor_mgr != NULL, "Should have two managers");
335 // Add a memory pool for each space and young gen doesn't
336 // support low memory detection as it is expected to get filled up.
337 EdenMutableSpacePool* eden = new EdenMutableSpacePool(gen,
338 gen->eden_space(),
339 "PS Eden Space",
340 MemoryPool::Heap,
341 false /* support_usage_threshold */);
343 SurvivorMutableSpacePool* survivor = new SurvivorMutableSpacePool(gen,
344 "PS Survivor Space",
345 MemoryPool::Heap,
346 false /* support_usage_threshold */);
348 major_mgr->add_pool(eden);
349 major_mgr->add_pool(survivor);
350 minor_mgr->add_pool(eden);
351 minor_mgr->add_pool(survivor);
352 _pools_list->append(eden);
353 _pools_list->append(survivor);
354 }
356 void MemoryService::add_psOld_memory_pool(PSOldGen* gen, MemoryManager* mgr) {
357 PSGenerationPool* old_gen = new PSGenerationPool(gen,
358 "PS Old Gen",
359 MemoryPool::Heap,
360 true /* support_usage_threshold */);
361 mgr->add_pool(old_gen);
362 _pools_list->append(old_gen);
363 }
365 void MemoryService::add_g1YoungGen_memory_pool(G1CollectedHeap* g1h,
366 MemoryManager* major_mgr,
367 MemoryManager* minor_mgr) {
368 assert(major_mgr != NULL && minor_mgr != NULL, "should have two managers");
370 G1EdenPool* eden = new G1EdenPool(g1h);
371 G1SurvivorPool* survivor = new G1SurvivorPool(g1h);
373 major_mgr->add_pool(eden);
374 major_mgr->add_pool(survivor);
375 minor_mgr->add_pool(eden);
376 minor_mgr->add_pool(survivor);
377 _pools_list->append(eden);
378 _pools_list->append(survivor);
379 }
381 void MemoryService::add_g1OldGen_memory_pool(G1CollectedHeap* g1h,
382 MemoryManager* mgr) {
383 assert(mgr != NULL, "should have one manager");
385 G1OldGenPool* old_gen = new G1OldGenPool(g1h);
386 mgr->add_pool(old_gen);
387 _pools_list->append(old_gen);
388 }
389 #endif // INCLUDE_ALL_GCS
391 void MemoryService::add_code_heap_memory_pool(CodeHeap* heap) {
392 _code_heap_pool = new CodeHeapPool(heap,
393 "Code Cache",
394 true /* support_usage_threshold */);
395 MemoryManager* mgr = MemoryManager::get_code_cache_memory_manager();
396 mgr->add_pool(_code_heap_pool);
398 _pools_list->append(_code_heap_pool);
399 _managers_list->append(mgr);
400 }
402 MemoryManager* MemoryService::get_memory_manager(instanceHandle mh) {
403 for (int i = 0; i < _managers_list->length(); i++) {
404 MemoryManager* mgr = _managers_list->at(i);
405 if (mgr->is_manager(mh)) {
406 return mgr;
407 }
408 }
409 return NULL;
410 }
412 MemoryPool* MemoryService::get_memory_pool(instanceHandle ph) {
413 for (int i = 0; i < _pools_list->length(); i++) {
414 MemoryPool* pool = _pools_list->at(i);
415 if (pool->is_pool(ph)) {
416 return pool;
417 }
418 }
419 return NULL;
420 }
422 void MemoryService::track_memory_usage() {
423 // Track the peak memory usage
424 for (int i = 0; i < _pools_list->length(); i++) {
425 MemoryPool* pool = _pools_list->at(i);
426 pool->record_peak_memory_usage();
427 }
429 // Detect low memory
430 LowMemoryDetector::detect_low_memory();
431 }
433 void MemoryService::track_memory_pool_usage(MemoryPool* pool) {
434 // Track the peak memory usage
435 pool->record_peak_memory_usage();
437 // Detect low memory
438 if (LowMemoryDetector::is_enabled(pool)) {
439 LowMemoryDetector::detect_low_memory(pool);
440 }
441 }
443 void MemoryService::gc_begin(bool fullGC, bool recordGCBeginTime,
444 bool recordAccumulatedGCTime,
445 bool recordPreGCUsage, bool recordPeakUsage) {
447 GCMemoryManager* mgr;
448 if (fullGC) {
449 mgr = _major_gc_manager;
450 } else {
451 mgr = _minor_gc_manager;
452 }
453 assert(mgr->is_gc_memory_manager(), "Sanity check");
454 mgr->gc_begin(recordGCBeginTime, recordPreGCUsage, recordAccumulatedGCTime);
456 // Track the peak memory usage when GC begins
457 if (recordPeakUsage) {
458 for (int i = 0; i < _pools_list->length(); i++) {
459 MemoryPool* pool = _pools_list->at(i);
460 pool->record_peak_memory_usage();
461 }
462 }
463 }
465 void MemoryService::gc_end(bool fullGC, bool recordPostGCUsage,
466 bool recordAccumulatedGCTime,
467 bool recordGCEndTime, bool countCollection,
468 GCCause::Cause cause) {
470 GCMemoryManager* mgr;
471 if (fullGC) {
472 mgr = (GCMemoryManager*) _major_gc_manager;
473 } else {
474 mgr = (GCMemoryManager*) _minor_gc_manager;
475 }
476 assert(mgr->is_gc_memory_manager(), "Sanity check");
478 // register the GC end statistics and memory usage
479 mgr->gc_end(recordPostGCUsage, recordAccumulatedGCTime, recordGCEndTime,
480 countCollection, cause);
481 }
483 void MemoryService::oops_do(OopClosure* f) {
484 int i;
486 for (i = 0; i < _pools_list->length(); i++) {
487 MemoryPool* pool = _pools_list->at(i);
488 pool->oops_do(f);
489 }
490 for (i = 0; i < _managers_list->length(); i++) {
491 MemoryManager* mgr = _managers_list->at(i);
492 mgr->oops_do(f);
493 }
494 }
496 bool MemoryService::set_verbose(bool verbose) {
497 MutexLocker m(Management_lock);
498 // verbose will be set to the previous value
499 bool succeed = CommandLineFlags::boolAtPut((char*)"PrintGC", &verbose, MANAGEMENT);
500 assert(succeed, "Setting PrintGC flag fails");
501 ClassLoadingService::reset_trace_class_unloading();
503 return verbose;
504 }
506 Handle MemoryService::create_MemoryUsage_obj(MemoryUsage usage, TRAPS) {
507 Klass* k = Management::java_lang_management_MemoryUsage_klass(CHECK_NH);
508 instanceKlassHandle ik(THREAD, k);
510 instanceHandle obj = ik->allocate_instance_handle(CHECK_NH);
512 JavaValue result(T_VOID);
513 JavaCallArguments args(10);
514 args.push_oop(obj); // receiver
515 args.push_long(usage.init_size_as_jlong()); // Argument 1
516 args.push_long(usage.used_as_jlong()); // Argument 2
517 args.push_long(usage.committed_as_jlong()); // Argument 3
518 args.push_long(usage.max_size_as_jlong()); // Argument 4
520 JavaCalls::call_special(&result,
521 ik,
522 vmSymbols::object_initializer_name(),
523 vmSymbols::long_long_long_long_void_signature(),
524 &args,
525 CHECK_NH);
526 return obj;
527 }
528 //
529 // GC manager type depends on the type of Generation. Depending on the space
530 // availablity and vm options the gc uses major gc manager or minor gc
531 // manager or both. The type of gc manager depends on the generation kind.
532 // For DefNew, ParNew and ASParNew generation doing scavenge gc uses minor
533 // gc manager (so _fullGC is set to false ) and for other generation kinds
534 // doing mark-sweep-compact uses major gc manager (so _fullGC is set
535 // to true).
536 TraceMemoryManagerStats::TraceMemoryManagerStats(Generation::Name kind, GCCause::Cause cause) {
537 switch (kind) {
538 case Generation::DefNew:
539 #if INCLUDE_ALL_GCS
540 case Generation::ParNew:
541 case Generation::ASParNew:
542 #endif // INCLUDE_ALL_GCS
543 _fullGC=false;
544 break;
545 case Generation::MarkSweepCompact:
546 #if INCLUDE_ALL_GCS
547 case Generation::ConcurrentMarkSweep:
548 case Generation::ASConcurrentMarkSweep:
549 #endif // INCLUDE_ALL_GCS
550 _fullGC=true;
551 break;
552 default:
553 assert(false, "Unrecognized gc generation kind.");
554 }
555 // this has to be called in a stop the world pause and represent
556 // an entire gc pause, start to finish:
557 initialize(_fullGC, cause,true, true, true, true, true, true, true);
558 }
559 TraceMemoryManagerStats::TraceMemoryManagerStats(bool fullGC,
560 GCCause::Cause cause,
561 bool recordGCBeginTime,
562 bool recordPreGCUsage,
563 bool recordPeakUsage,
564 bool recordPostGCUsage,
565 bool recordAccumulatedGCTime,
566 bool recordGCEndTime,
567 bool countCollection) {
568 initialize(fullGC, cause, recordGCBeginTime, recordPreGCUsage, recordPeakUsage,
569 recordPostGCUsage, recordAccumulatedGCTime, recordGCEndTime,
570 countCollection);
571 }
573 // for a subclass to create then initialize an instance before invoking
574 // the MemoryService
575 void TraceMemoryManagerStats::initialize(bool fullGC,
576 GCCause::Cause cause,
577 bool recordGCBeginTime,
578 bool recordPreGCUsage,
579 bool recordPeakUsage,
580 bool recordPostGCUsage,
581 bool recordAccumulatedGCTime,
582 bool recordGCEndTime,
583 bool countCollection) {
584 _fullGC = fullGC;
585 _recordGCBeginTime = recordGCBeginTime;
586 _recordPreGCUsage = recordPreGCUsage;
587 _recordPeakUsage = recordPeakUsage;
588 _recordPostGCUsage = recordPostGCUsage;
589 _recordAccumulatedGCTime = recordAccumulatedGCTime;
590 _recordGCEndTime = recordGCEndTime;
591 _countCollection = countCollection;
592 _cause = cause;
594 MemoryService::gc_begin(_fullGC, _recordGCBeginTime, _recordAccumulatedGCTime,
595 _recordPreGCUsage, _recordPeakUsage);
596 }
598 TraceMemoryManagerStats::~TraceMemoryManagerStats() {
599 MemoryService::gc_end(_fullGC, _recordPostGCUsage, _recordAccumulatedGCTime,
600 _recordGCEndTime, _countCollection, _cause);
601 }