535 // Null out class_loader_data because we don't share that yet.
536 set_class_loader_data(NULL);
537 set_is_shared();
538 }
539
540 void Klass::remove_java_mirror() {
541 Arguments::assert_is_dumping_archive();
542 if (log_is_enabled(Trace, cds, unshareable)) {
543 ResourceMark rm;
544 log_trace(cds, unshareable)("remove java_mirror: %s", external_name());
545 }
546 // Just null out the mirror. The class_loader_data() no longer exists.
547 _java_mirror = NULL;
548 }
549
550 void Klass::restore_unshareable_info(ClassLoaderData* loader_data, Handle protection_domain, TRAPS) {
551 assert(is_klass(), "ensure C++ vtable is restored");
552 assert(is_shared(), "must be set");
553 JFR_ONLY(RESTORE_ID(this);)
554 if (log_is_enabled(Trace, cds, unshareable)) {
555 ResourceMark rm;
556 log_trace(cds, unshareable)("restore: %s", external_name());
557 }
558
559 // If an exception happened during CDS restore, some of these fields may already be
560 // set. We leave the class on the CLD list, even if incomplete so that we don't
561 // modify the CLD list outside a safepoint.
562 if (class_loader_data() == NULL) {
563 // Restore class_loader_data to the null class loader data
564 set_class_loader_data(loader_data);
565
566 // Add to null class loader list first before creating the mirror
567 // (same order as class file parsing)
568 loader_data->add_class(this);
569 }
570
571 Handle loader(THREAD, loader_data->class_loader());
572 ModuleEntry* module_entry = NULL;
573 Klass* k = this;
574 if (k->is_objArray_klass()) {
575 k = ObjArrayKlass::cast(k)->bottom_klass();
576 }
577 // Obtain klass' module.
578 if (k->is_instance_klass()) {
579 InstanceKlass* ik = (InstanceKlass*) k;
580 module_entry = ik->module();
581 } else {
582 module_entry = ModuleEntryTable::javabase_moduleEntry();
583 }
584 // Obtain java.lang.Module, if available
585 Handle module_handle(THREAD, ((module_entry != NULL) ? module_entry->module() : (oop)NULL));
586
587 if (this->has_raw_archived_mirror()) {
588 ResourceMark rm;
589 log_debug(cds, mirror)("%s has raw archived mirror", external_name());
590 if (HeapShared::open_archive_heap_region_mapped()) {
591 bool present = java_lang_Class::restore_archived_mirror(this, loader, module_handle,
592 protection_domain,
593 CHECK);
594 if (present) {
595 return;
596 }
597 }
598
599 // No archived mirror data
600 log_debug(cds, mirror)("No archived mirror data for %s", external_name());
601 _java_mirror = NULL;
602 this->clear_has_raw_archived_mirror();
603 }
604
605 // Only recreate it if not present. A previous attempt to restore may have
606 // gotten an OOM later but keep the mirror if it was created.
607 if (java_mirror() == NULL) {
608 log_trace(cds, mirror)("Recreate mirror for %s", external_name());
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535 // Null out class_loader_data because we don't share that yet.
536 set_class_loader_data(NULL);
537 set_is_shared();
538 }
539
540 void Klass::remove_java_mirror() {
541 Arguments::assert_is_dumping_archive();
542 if (log_is_enabled(Trace, cds, unshareable)) {
543 ResourceMark rm;
544 log_trace(cds, unshareable)("remove java_mirror: %s", external_name());
545 }
546 // Just null out the mirror. The class_loader_data() no longer exists.
547 _java_mirror = NULL;
548 }
549
550 void Klass::restore_unshareable_info(ClassLoaderData* loader_data, Handle protection_domain, TRAPS) {
551 assert(is_klass(), "ensure C++ vtable is restored");
552 assert(is_shared(), "must be set");
553 JFR_ONLY(RESTORE_ID(this);)
554 if (log_is_enabled(Trace, cds, unshareable)) {
555 ResourceMark rm(THREAD);
556 log_trace(cds, unshareable)("restore: %s", external_name());
557 }
558
559 // If an exception happened during CDS restore, some of these fields may already be
560 // set. We leave the class on the CLD list, even if incomplete so that we don't
561 // modify the CLD list outside a safepoint.
562 if (class_loader_data() == NULL) {
563 // Restore class_loader_data to the null class loader data
564 set_class_loader_data(loader_data);
565
566 // Add to null class loader list first before creating the mirror
567 // (same order as class file parsing)
568 loader_data->add_class(this);
569 }
570
571 Handle loader(THREAD, loader_data->class_loader());
572 ModuleEntry* module_entry = NULL;
573 Klass* k = this;
574 if (k->is_objArray_klass()) {
575 k = ObjArrayKlass::cast(k)->bottom_klass();
576 }
577 // Obtain klass' module.
578 if (k->is_instance_klass()) {
579 InstanceKlass* ik = (InstanceKlass*) k;
580 module_entry = ik->module();
581 } else {
582 module_entry = ModuleEntryTable::javabase_moduleEntry();
583 }
584 // Obtain java.lang.Module, if available
585 Handle module_handle(THREAD, ((module_entry != NULL) ? module_entry->module() : (oop)NULL));
586
587 if (this->has_raw_archived_mirror()) {
588 ResourceMark rm(THREAD);
589 log_debug(cds, mirror)("%s has raw archived mirror", external_name());
590 if (HeapShared::open_archive_heap_region_mapped()) {
591 bool present = java_lang_Class::restore_archived_mirror(this, loader, module_handle,
592 protection_domain,
593 CHECK);
594 if (present) {
595 return;
596 }
597 }
598
599 // No archived mirror data
600 log_debug(cds, mirror)("No archived mirror data for %s", external_name());
601 _java_mirror = NULL;
602 this->clear_has_raw_archived_mirror();
603 }
604
605 // Only recreate it if not present. A previous attempt to restore may have
606 // gotten an OOM later but keep the mirror if it was created.
607 if (java_mirror() == NULL) {
608 log_trace(cds, mirror)("Recreate mirror for %s", external_name());
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