742 } else if (is_anonymous()) {
743 if (class_loader() != NULL) {
744 log_trace(class, loader, data)("is_anonymous: %s", class_loader()->klass()->internal_name());
745 }
746 metaspace = new Metaspace(_metaspace_lock, Metaspace::AnonymousMetaspaceType);
747 } else if (class_loader()->is_a(SystemDictionary::reflect_DelegatingClassLoader_klass())) {
748 if (class_loader() != NULL) {
749 log_trace(class, loader, data)("is_reflection: %s", class_loader()->klass()->internal_name());
750 }
751 metaspace = new Metaspace(_metaspace_lock, Metaspace::ReflectionMetaspaceType);
752 } else {
753 metaspace = new Metaspace(_metaspace_lock, Metaspace::StandardMetaspaceType);
754 }
755 // Ensure _metaspace is stable, since it is examined without a lock
756 OrderAccess::release_store_ptr(&_metaspace, metaspace);
757 }
758 }
759 return metaspace;
760 }
761
762 jobject ClassLoaderData::add_handle(Handle h) {
763 MutexLockerEx ml(metaspace_lock(), Mutex::_no_safepoint_check_flag);
764 return (jobject) _handles.add(h());
765 }
766
767 void ClassLoaderData::remove_handle_unsafe(jobject h) {
768 assert(_handles.contains((oop*) h), "Got unexpected handle " PTR_FORMAT, p2i((oop*) h));
769 *((oop*) h) = NULL;
770 }
771
772 // Add this metadata pointer to be freed when it's safe. This is only during
773 // class unloading because Handles might point to this metadata field.
774 void ClassLoaderData::add_to_deallocate_list(Metadata* m) {
775 // Metadata in shared region isn't deleted.
776 if (!m->is_shared()) {
777 MutexLockerEx ml(metaspace_lock(), Mutex::_no_safepoint_check_flag);
778 if (_deallocate_list == NULL) {
779 _deallocate_list = new (ResourceObj::C_HEAP, mtClass) GrowableArray<Metadata*>(100, true);
780 }
781 _deallocate_list->append_if_missing(m);
782 }
783 }
784
785 // Deallocate free metadata on the free list. How useful the PermGen was!
786 void ClassLoaderData::free_deallocate_list() {
787 // Don't need lock, at safepoint
788 assert(SafepointSynchronize::is_at_safepoint(), "only called at safepoint");
789 if (_deallocate_list == NULL) {
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742 } else if (is_anonymous()) {
743 if (class_loader() != NULL) {
744 log_trace(class, loader, data)("is_anonymous: %s", class_loader()->klass()->internal_name());
745 }
746 metaspace = new Metaspace(_metaspace_lock, Metaspace::AnonymousMetaspaceType);
747 } else if (class_loader()->is_a(SystemDictionary::reflect_DelegatingClassLoader_klass())) {
748 if (class_loader() != NULL) {
749 log_trace(class, loader, data)("is_reflection: %s", class_loader()->klass()->internal_name());
750 }
751 metaspace = new Metaspace(_metaspace_lock, Metaspace::ReflectionMetaspaceType);
752 } else {
753 metaspace = new Metaspace(_metaspace_lock, Metaspace::StandardMetaspaceType);
754 }
755 // Ensure _metaspace is stable, since it is examined without a lock
756 OrderAccess::release_store_ptr(&_metaspace, metaspace);
757 }
758 }
759 return metaspace;
760 }
761
762 OopHandle ClassLoaderData::add_handle(Handle h) {
763 MutexLockerEx ml(metaspace_lock(), Mutex::_no_safepoint_check_flag);
764 return OopHandle(_handles.add(h()));
765 }
766
767 void ClassLoaderData::remove_handle_unsafe(OopHandle h) {
768 oop* obj = h.ptr();
769 assert(_handles.contains(obj), "Got unexpected handle " PTR_FORMAT, p2i(obj));
770 *(obj) = NULL;
771 }
772
773 // Add this metadata pointer to be freed when it's safe. This is only during
774 // class unloading because Handles might point to this metadata field.
775 void ClassLoaderData::add_to_deallocate_list(Metadata* m) {
776 // Metadata in shared region isn't deleted.
777 if (!m->is_shared()) {
778 MutexLockerEx ml(metaspace_lock(), Mutex::_no_safepoint_check_flag);
779 if (_deallocate_list == NULL) {
780 _deallocate_list = new (ResourceObj::C_HEAP, mtClass) GrowableArray<Metadata*>(100, true);
781 }
782 _deallocate_list->append_if_missing(m);
783 }
784 }
785
786 // Deallocate free metadata on the free list. How useful the PermGen was!
787 void ClassLoaderData::free_deallocate_list() {
788 // Don't need lock, at safepoint
789 assert(SafepointSynchronize::is_at_safepoint(), "only called at safepoint");
790 if (_deallocate_list == NULL) {
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