137                                       bool is_scavenging,
 138                                       ScanningOption so,
 139                                       OopClosure* roots,
 140                                       CodeBlobClosure* code_roots,
 141                                       KlassClosure* klass_closure) {
 142   StrongRootsScope srs(this, activate_scope);
 143 
 144   // General strong roots.
 145   assert(_strong_roots_parity != 0, "must have called prologue code");
 146   // _n_termination for _process_strong_tasks should be set up stream
 147   // in a method not running in a GC worker.  Otherwise the GC worker
 148   // could be trying to change the termination condition while the task
 149   // is executing in another GC worker.
 150   if (!_process_strong_tasks->is_task_claimed(SH_PS_Universe_oops_do)) {
 151     Universe::oops_do(roots);
 152   }
 153   // Global (strong) JNI handles
 154   if (!_process_strong_tasks->is_task_claimed(SH_PS_JNIHandles_oops_do))
 155     JNIHandles::oops_do(roots);
 156   // All threads execute this; the individual threads are task groups.


 157   if (ParallelGCThreads > 0) {
 158     Threads::possibly_parallel_oops_do(roots, code_roots);
 159   } else {
 160     Threads::oops_do(roots, code_roots);
 161   }
 162   if (!_process_strong_tasks-> is_task_claimed(SH_PS_ObjectSynchronizer_oops_do))
 163     ObjectSynchronizer::oops_do(roots);
 164   if (!_process_strong_tasks->is_task_claimed(SH_PS_FlatProfiler_oops_do))
 165     FlatProfiler::oops_do(roots);
 166   if (!_process_strong_tasks->is_task_claimed(SH_PS_Management_oops_do))
 167     Management::oops_do(roots);
 168   if (!_process_strong_tasks->is_task_claimed(SH_PS_jvmti_oops_do))
 169     JvmtiExport::oops_do(roots);
 170 
 171   if (!_process_strong_tasks->is_task_claimed(SH_PS_SystemDictionary_oops_do)) {
 172     if (so & SO_AllClasses) {
 173       SystemDictionary::oops_do(roots);
 174       ClassLoaderDataGraph::oops_do(roots, klass_closure, !is_scavenging);
 175     } else if (so & SO_SystemClasses) {
 176       SystemDictionary::always_strong_oops_do(roots);
 177       ClassLoaderDataGraph::always_strong_oops_do(roots, klass_closure, !is_scavenging);
 178     } else {
 179       ShouldNotReachHere2("We should always have selected either SO_AllClasses or SO_SystemClasses");
 180     }

 137                                       bool is_scavenging,
 138                                       ScanningOption so,
 139                                       OopClosure* roots,
 140                                       CodeBlobClosure* code_roots,
 141                                       KlassClosure* klass_closure) {
 142   StrongRootsScope srs(this, activate_scope);
 143 
 144   // General strong roots.
 145   assert(_strong_roots_parity != 0, "must have called prologue code");
 146   // _n_termination for _process_strong_tasks should be set up stream
 147   // in a method not running in a GC worker.  Otherwise the GC worker
 148   // could be trying to change the termination condition while the task
 149   // is executing in another GC worker.
 150   if (!_process_strong_tasks->is_task_claimed(SH_PS_Universe_oops_do)) {
 151     Universe::oops_do(roots);
 152   }
 153   // Global (strong) JNI handles
 154   if (!_process_strong_tasks->is_task_claimed(SH_PS_JNIHandles_oops_do))
 155     JNIHandles::oops_do(roots);
 156   // All threads execute this; the individual threads are task groups.
 157   CLDToOopClosure roots_from_clds(roots);
 158   CLDToOopClosure* roots_from_clds_p = (is_scavenging ? NULL : &roots_from_clds);
 159   if (ParallelGCThreads > 0) {
 160     Threads::possibly_parallel_oops_do(roots, roots_from_clds_p ,code_roots);
 161   } else {
 162     Threads::oops_do(roots, roots_from_clds_p, code_roots);
 163   }
 164   if (!_process_strong_tasks-> is_task_claimed(SH_PS_ObjectSynchronizer_oops_do))
 165     ObjectSynchronizer::oops_do(roots);
 166   if (!_process_strong_tasks->is_task_claimed(SH_PS_FlatProfiler_oops_do))
 167     FlatProfiler::oops_do(roots);
 168   if (!_process_strong_tasks->is_task_claimed(SH_PS_Management_oops_do))
 169     Management::oops_do(roots);
 170   if (!_process_strong_tasks->is_task_claimed(SH_PS_jvmti_oops_do))
 171     JvmtiExport::oops_do(roots);
 172 
 173   if (!_process_strong_tasks->is_task_claimed(SH_PS_SystemDictionary_oops_do)) {
 174     if (so & SO_AllClasses) {
 175       SystemDictionary::oops_do(roots);
 176       ClassLoaderDataGraph::oops_do(roots, klass_closure, !is_scavenging);
 177     } else if (so & SO_SystemClasses) {
 178       SystemDictionary::always_strong_oops_do(roots);
 179       ClassLoaderDataGraph::always_strong_oops_do(roots, klass_closure, !is_scavenging);
 180     } else {
 181       ShouldNotReachHere2("We should always have selected either SO_AllClasses or SO_SystemClasses");
 182     }