| /* |
| * Copyright (c) 2003, 2021, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| #include "precompiled.hpp" |
| #include "classfile/classLoaderData.inline.hpp" |
| #include "classfile/dictionary.hpp" |
| #include "classfile/javaClasses.hpp" |
| #include "classfile/protectionDomainCache.hpp" |
| #include "classfile/systemDictionary.hpp" |
| #include "classfile/vmSymbols.hpp" |
| #include "logging/log.hpp" |
| #include "logging/logStream.hpp" |
| #include "memory/iterator.hpp" |
| #include "memory/metaspaceClosure.hpp" |
| #include "memory/resourceArea.hpp" |
| #include "memory/universe.hpp" |
| #include "oops/klass.inline.hpp" |
| #include "oops/method.hpp" |
| #include "oops/oop.inline.hpp" |
| #include "oops/oopHandle.inline.hpp" |
| #include "runtime/arguments.hpp" |
| #include "runtime/handles.inline.hpp" |
| #include "runtime/javaCalls.hpp" |
| #include "runtime/mutexLocker.hpp" |
| #include "runtime/safepointVerifiers.hpp" |
| #include "utilities/growableArray.hpp" |
| #include "utilities/hashtable.inline.hpp" |
| |
| // Optimization: if any dictionary needs resizing, we set this flag, |
| // so that we dont't have to walk all dictionaries to check if any actually |
| // needs resizing, which is costly to do at Safepoint. |
| bool Dictionary::_some_dictionary_needs_resizing = false; |
| |
| Dictionary::Dictionary(ClassLoaderData* loader_data, int table_size, bool resizable) |
| : Hashtable<InstanceKlass*, mtClass>(table_size, (int)sizeof(DictionaryEntry)), |
| _resizable(resizable), _needs_resizing(false), _loader_data(loader_data) { |
| }; |
| |
| |
| Dictionary::Dictionary(ClassLoaderData* loader_data, |
| int table_size, HashtableBucket<mtClass>* t, |
| int number_of_entries, bool resizable) |
| : Hashtable<InstanceKlass*, mtClass>(table_size, (int)sizeof(DictionaryEntry), t, number_of_entries), |
| _resizable(resizable), _needs_resizing(false), _loader_data(loader_data) { |
| }; |
| |
| Dictionary::~Dictionary() { |
| DictionaryEntry* probe = NULL; |
| for (int index = 0; index < table_size(); index++) { |
| for (DictionaryEntry** p = bucket_addr(index); *p != NULL; ) { |
| probe = *p; |
| *p = probe->next(); |
| free_entry(probe); |
| } |
| } |
| assert(number_of_entries() == 0, "should have removed all entries"); |
| } |
| |
| DictionaryEntry* Dictionary::new_entry(unsigned int hash, InstanceKlass* klass) { |
| DictionaryEntry* entry = (DictionaryEntry*)Hashtable<InstanceKlass*, mtClass>::new_entry(hash, klass); |
| entry->release_set_pd_set(NULL); |
| assert(klass->is_instance_klass(), "Must be"); |
| return entry; |
| } |
| |
| void Dictionary::free_entry(DictionaryEntry* entry) { |
| // avoid recursion when deleting linked list |
| // pd_set is accessed during a safepoint. |
| // This doesn't require a lock because nothing is reading this |
| // entry anymore. The ClassLoader is dead. |
| while (entry->pd_set_acquire() != NULL) { |
| ProtectionDomainEntry* to_delete = entry->pd_set_acquire(); |
| entry->release_set_pd_set(to_delete->next_acquire()); |
| delete to_delete; |
| } |
| BasicHashtable<mtClass>::free_entry(entry); |
| } |
| |
| const int _resize_load_trigger = 5; // load factor that will trigger the resize |
| |
| bool Dictionary::does_any_dictionary_needs_resizing() { |
| return Dictionary::_some_dictionary_needs_resizing; |
| } |
| |
| void Dictionary::check_if_needs_resize() { |
| if (_resizable == true) { |
| if (number_of_entries() > (_resize_load_trigger*table_size())) { |
| _needs_resizing = true; |
| Dictionary::_some_dictionary_needs_resizing = true; |
| } |
| } |
| } |
| |
| bool Dictionary::resize_if_needed() { |
| assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint"); |
| int desired_size = 0; |
| if (_needs_resizing == true) { |
| desired_size = calculate_resize(false); |
| assert(desired_size != 0, "bug in calculate_resize"); |
| if (desired_size == table_size()) { |
| _resizable = false; // hit max |
| } else { |
| if (!resize(desired_size)) { |
| // Something went wrong, turn resizing off |
| _resizable = false; |
| } |
| } |
| } |
| |
| _needs_resizing = false; |
| Dictionary::_some_dictionary_needs_resizing = false; |
| |
| return (desired_size != 0); |
| } |
| |
| bool DictionaryEntry::is_valid_protection_domain(Handle protection_domain) { |
| |
| return protection_domain() == NULL || !java_lang_System::allow_security_manager() |
| ? true |
| : contains_protection_domain(protection_domain()); |
| } |
| |
| // Reading the pd_set on each DictionaryEntry is lock free and cannot safepoint. |
| // Adding and deleting entries is under the SystemDictionary_lock |
| // Deleting unloaded entries on ClassLoaderData for dictionaries that are not unloaded |
| // is a three step process: |
| // moving the entries to a separate list, handshake to wait for |
| // readers to complete (see NSV here), and then actually deleting the entries. |
| // Deleting entries is done by the ServiceThread when triggered by class unloading. |
| |
| bool DictionaryEntry::contains_protection_domain(oop protection_domain) const { |
| assert(Thread::current()->is_Java_thread() || SafepointSynchronize::is_at_safepoint(), |
| "can only be called by a JavaThread or at safepoint"); |
| // This cannot safepoint while reading the protection domain set. |
| NoSafepointVerifier nsv; |
| #ifdef ASSERT |
| if (protection_domain == instance_klass()->protection_domain()) { |
| // Ensure this doesn't show up in the pd_set (invariant) |
| bool in_pd_set = false; |
| for (ProtectionDomainEntry* current = pd_set_acquire(); |
| current != NULL; |
| current = current->next_acquire()) { |
| if (current->object_no_keepalive() == protection_domain) { |
| in_pd_set = true; |
| break; |
| } |
| } |
| if (in_pd_set) { |
| assert(false, "A klass's protection domain should not show up " |
| "in its sys. dict. PD set"); |
| } |
| } |
| #endif /* ASSERT */ |
| |
| if (protection_domain == instance_klass()->protection_domain()) { |
| // Succeeds trivially |
| return true; |
| } |
| |
| for (ProtectionDomainEntry* current = pd_set_acquire(); |
| current != NULL; |
| current = current->next_acquire()) { |
| if (current->object_no_keepalive() == protection_domain) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| void DictionaryEntry::add_protection_domain(ClassLoaderData* loader_data, Handle protection_domain) { |
| assert_lock_strong(SystemDictionary_lock); |
| if (!contains_protection_domain(protection_domain())) { |
| ProtectionDomainCacheEntry* entry = SystemDictionary::pd_cache_table()->get(protection_domain); |
| // Additions and deletions hold the SystemDictionary_lock, readers are lock-free |
| ProtectionDomainEntry* new_head = new ProtectionDomainEntry(entry, _pd_set); |
| release_set_pd_set(new_head); |
| } |
| LogTarget(Trace, protectiondomain) lt; |
| if (lt.is_enabled()) { |
| ResourceMark rm; |
| LogStream ls(lt); |
| ls.print("adding protection domain for class %s", instance_klass()->name()->as_C_string()); |
| ls.print(" class loader: "); |
| loader_data->class_loader()->print_value_on(&ls); |
| ls.print(" protection domain: "); |
| protection_domain->print_value_on(&ls); |
| ls.print(" "); |
| print_count(&ls); |
| ls.cr(); |
| } |
| } |
| |
| // Just the classes from defining class loaders |
| void Dictionary::classes_do(void f(InstanceKlass*)) { |
| for (int index = 0; index < table_size(); index++) { |
| for (DictionaryEntry* probe = bucket(index); |
| probe != NULL; |
| probe = probe->next()) { |
| InstanceKlass* k = probe->instance_klass(); |
| if (loader_data() == k->class_loader_data()) { |
| f(k); |
| } |
| } |
| } |
| } |
| |
| // Added for initialize_itable_for_klass to handle exceptions |
| // Just the classes from defining class loaders |
| void Dictionary::classes_do(void f(InstanceKlass*, TRAPS), TRAPS) { |
| for (int index = 0; index < table_size(); index++) { |
| for (DictionaryEntry* probe = bucket(index); |
| probe != NULL; |
| probe = probe->next()) { |
| InstanceKlass* k = probe->instance_klass(); |
| if (loader_data() == k->class_loader_data()) { |
| f(k, CHECK); |
| } |
| } |
| } |
| } |
| |
| // All classes, and their class loaders, including initiating class loaders |
| void Dictionary::all_entries_do(KlassClosure* closure) { |
| for (int index = 0; index < table_size(); index++) { |
| for (DictionaryEntry* probe = bucket(index); |
| probe != NULL; |
| probe = probe->next()) { |
| InstanceKlass* k = probe->instance_klass(); |
| closure->do_klass(k); |
| } |
| } |
| } |
| |
| // Used to scan and relocate the classes during CDS archive dump. |
| void Dictionary::classes_do(MetaspaceClosure* it) { |
| Arguments::assert_is_dumping_archive(); |
| for (int index = 0; index < table_size(); index++) { |
| for (DictionaryEntry* probe = bucket(index); |
| probe != NULL; |
| probe = probe->next()) { |
| it->push(probe->klass_addr()); |
| } |
| } |
| } |
| |
| |
| |
| // Add a loaded class to the dictionary. |
| // Readers of the SystemDictionary aren't always locked, so _buckets |
| // is volatile. The store of the next field in the constructor is |
| // also cast to volatile; we do this to ensure store order is maintained |
| // by the compilers. |
| |
| void Dictionary::add_klass(unsigned int hash, Symbol* class_name, |
| InstanceKlass* obj) { |
| assert_locked_or_safepoint(SystemDictionary_lock); |
| assert(obj != NULL, "adding NULL obj"); |
| assert(obj->name() == class_name, "sanity check on name"); |
| |
| DictionaryEntry* entry = new_entry(hash, obj); |
| int index = hash_to_index(hash); |
| add_entry(index, entry); |
| check_if_needs_resize(); |
| } |
| |
| |
| // This routine does not lock the dictionary. |
| // |
| // Since readers don't hold a lock, we must make sure that system |
| // dictionary entries are only removed at a safepoint (when only one |
| // thread is running), and are added to in a safe way (all links must |
| // be updated in an MT-safe manner). |
| // |
| // Callers should be aware that an entry could be added just after |
| // _buckets[index] is read here, so the caller will not see the new entry. |
| DictionaryEntry* Dictionary::get_entry(int index, unsigned int hash, |
| Symbol* class_name) { |
| for (DictionaryEntry* entry = bucket(index); |
| entry != NULL; |
| entry = entry->next()) { |
| if (entry->hash() == hash && entry->instance_klass()->name() == class_name) { |
| return entry; |
| } |
| } |
| return NULL; |
| } |
| |
| |
| |
| InstanceKlass* Dictionary::find(unsigned int hash, Symbol* name, |
| Handle protection_domain) { |
| NoSafepointVerifier nsv; |
| |
| int index = hash_to_index(hash); |
| DictionaryEntry* entry = get_entry(index, hash, name); |
| if (entry != NULL && entry->is_valid_protection_domain(protection_domain)) { |
| return entry->instance_klass(); |
| } else { |
| return NULL; |
| } |
| } |
| |
| InstanceKlass* Dictionary::find_class(unsigned int hash, |
| Symbol* name) { |
| assert_locked_or_safepoint(SystemDictionary_lock); |
| |
| int index = hash_to_index(hash); |
| assert (index == index_for(name), "incorrect index?"); |
| |
| DictionaryEntry* entry = get_entry(index, hash, name); |
| return (entry != NULL) ? entry->instance_klass() : NULL; |
| } |
| |
| void Dictionary::add_protection_domain(int index, unsigned int hash, |
| InstanceKlass* klass, |
| Handle protection_domain) { |
| assert(java_lang_System::allow_security_manager(), "only needed if security manager allowed"); |
| Symbol* klass_name = klass->name(); |
| DictionaryEntry* entry = get_entry(index, hash, klass_name); |
| |
| assert(entry != NULL,"entry must be present, we just created it"); |
| assert(protection_domain() != NULL, |
| "real protection domain should be present"); |
| |
| entry->add_protection_domain(loader_data(), protection_domain); |
| |
| #ifdef ASSERT |
| assert(loader_data() != ClassLoaderData::the_null_class_loader_data(), "doesn't make sense"); |
| #endif |
| |
| assert(entry->contains_protection_domain(protection_domain()), |
| "now protection domain should be present"); |
| } |
| |
| |
| inline bool Dictionary::is_valid_protection_domain(unsigned int hash, |
| Symbol* name, |
| Handle protection_domain) { |
| int index = hash_to_index(hash); |
| DictionaryEntry* entry = get_entry(index, hash, name); |
| return entry->is_valid_protection_domain(protection_domain); |
| } |
| |
| void Dictionary::validate_protection_domain(unsigned int name_hash, |
| InstanceKlass* klass, |
| Handle class_loader, |
| Handle protection_domain, |
| TRAPS) { |
| |
| assert(class_loader() != NULL, "Should not call this"); |
| assert(protection_domain() != NULL, "Should not call this"); |
| |
| if (!java_lang_System::allow_security_manager() || |
| is_valid_protection_domain(name_hash, klass->name(), protection_domain)) { |
| return; |
| } |
| |
| // We only have to call checkPackageAccess if there's a security manager installed. |
| if (java_lang_System::has_security_manager()) { |
| |
| // This handle and the class_loader handle passed in keeps this class from |
| // being unloaded through several GC points. |
| // The class_loader handle passed in is the initiating loader. |
| Handle mirror(THREAD, klass->java_mirror()); |
| |
| // Now we have to call back to java to check if the initating class has access |
| InstanceKlass* system_loader = vmClasses::ClassLoader_klass(); |
| JavaValue result(T_VOID); |
| JavaCalls::call_special(&result, |
| class_loader, |
| system_loader, |
| vmSymbols::checkPackageAccess_name(), |
| vmSymbols::class_protectiondomain_signature(), |
| mirror, |
| protection_domain, |
| THREAD); |
| |
| LogTarget(Debug, protectiondomain) lt; |
| if (lt.is_enabled()) { |
| ResourceMark rm(THREAD); |
| // Print out trace information |
| LogStream ls(lt); |
| ls.print_cr("Checking package access"); |
| ls.print("class loader: "); |
| class_loader()->print_value_on(&ls); |
| ls.print(" protection domain: "); |
| protection_domain()->print_value_on(&ls); |
| ls.print(" loading: "); klass->print_value_on(&ls); |
| if (HAS_PENDING_EXCEPTION) { |
| ls.print_cr(" DENIED !!!!!!!!!!!!!!!!!!!!!"); |
| } else { |
| ls.print_cr(" granted"); |
| } |
| } |
| |
| if (HAS_PENDING_EXCEPTION) return; |
| } |
| |
| // If no exception has been thrown, we have validated the protection domain |
| // Insert the protection domain of the initiating class into the set. |
| // We still have to add the protection_domain to the dictionary in case a new |
| // security manager is installed later. Calls to load the same class with class loader |
| // and protection domain are expected to succeed. |
| { |
| MutexLocker mu(THREAD, SystemDictionary_lock); |
| int d_index = hash_to_index(name_hash); |
| add_protection_domain(d_index, name_hash, klass, |
| protection_domain); |
| } |
| } |
| |
| // During class loading we may have cached a protection domain that has |
| // since been unreferenced, so this entry should be cleared. |
| void Dictionary::clean_cached_protection_domains(GrowableArray<ProtectionDomainEntry*>* delete_list) { |
| assert(Thread::current()->is_Java_thread(), "only called by JavaThread"); |
| assert_lock_strong(SystemDictionary_lock); |
| assert(!loader_data()->has_class_mirror_holder(), "cld should have a ClassLoader holder not a Class holder"); |
| |
| if (loader_data()->is_the_null_class_loader_data()) { |
| // Classes in the boot loader are not loaded with protection domains |
| return; |
| } |
| |
| for (int index = 0; index < table_size(); index++) { |
| for (DictionaryEntry* probe = bucket(index); |
| probe != NULL; |
| probe = probe->next()) { |
| Klass* e = probe->instance_klass(); |
| |
| ProtectionDomainEntry* current = probe->pd_set_acquire(); |
| ProtectionDomainEntry* prev = NULL; |
| while (current != NULL) { |
| if (current->object_no_keepalive() == NULL) { |
| LogTarget(Debug, protectiondomain) lt; |
| if (lt.is_enabled()) { |
| ResourceMark rm; |
| // Print out trace information |
| LogStream ls(lt); |
| ls.print_cr("PD in set is not alive:"); |
| ls.print("class loader: "); loader_data()->class_loader()->print_value_on(&ls); |
| ls.print(" loading: "); probe->instance_klass()->print_value_on(&ls); |
| ls.cr(); |
| } |
| if (probe->pd_set_acquire() == current) { |
| probe->release_set_pd_set(current->next_acquire()); |
| } else { |
| assert(prev != NULL, "should be set by alive entry"); |
| prev->release_set_next(current->next_acquire()); |
| } |
| // Mark current for deletion but in the meantime it can still be |
| // traversed. |
| delete_list->push(current); |
| current = current->next_acquire(); |
| } else { |
| prev = current; |
| current = current->next_acquire(); |
| } |
| } |
| } |
| } |
| } |
| |
| oop SymbolPropertyEntry::method_type() const { |
| return _method_type.resolve(); |
| } |
| |
| void SymbolPropertyEntry::set_method_type(oop p) { |
| _method_type = OopHandle(Universe::vm_global(), p); |
| } |
| |
| void SymbolPropertyEntry::free_entry() { |
| // decrement Symbol refcount here because hashtable doesn't. |
| literal()->decrement_refcount(); |
| // Free OopHandle |
| _method_type.release(Universe::vm_global()); |
| } |
| |
| void SymbolPropertyEntry::print_entry(outputStream* st) const { |
| symbol()->print_value_on(st); |
| st->print("/mode=" INTX_FORMAT, symbol_mode()); |
| st->print(" -> "); |
| bool printed = false; |
| if (method() != NULL) { |
| method()->print_value_on(st); |
| printed = true; |
| } |
| if (method_type() != NULL) { |
| if (printed) st->print(" and "); |
| st->print(INTPTR_FORMAT, p2i((void *)method_type())); |
| printed = true; |
| } |
| st->print_cr(printed ? "" : "(empty)"); |
| } |
| |
| SymbolPropertyTable::SymbolPropertyTable(int table_size) |
| : Hashtable<Symbol*, mtSymbol>(table_size, sizeof(SymbolPropertyEntry)) |
| { |
| } |
| SymbolPropertyTable::SymbolPropertyTable(int table_size, HashtableBucket<mtSymbol>* t, |
| int number_of_entries) |
| : Hashtable<Symbol*, mtSymbol>(table_size, sizeof(SymbolPropertyEntry), t, number_of_entries) |
| { |
| } |
| |
| |
| SymbolPropertyEntry* SymbolPropertyTable::find_entry(int index, unsigned int hash, |
| Symbol* sym, |
| intptr_t sym_mode) { |
| assert(index == index_for(sym, sym_mode), "incorrect index?"); |
| for (SymbolPropertyEntry* p = bucket(index); p != NULL; p = p->next()) { |
| if (p->hash() == hash && p->symbol() == sym && p->symbol_mode() == sym_mode) { |
| return p; |
| } |
| } |
| return NULL; |
| } |
| |
| |
| SymbolPropertyEntry* SymbolPropertyTable::add_entry(int index, unsigned int hash, |
| Symbol* sym, intptr_t sym_mode) { |
| assert_locked_or_safepoint(SystemDictionary_lock); |
| assert(index == index_for(sym, sym_mode), "incorrect index?"); |
| assert(find_entry(index, hash, sym, sym_mode) == NULL, "no double entry"); |
| |
| SymbolPropertyEntry* p = new_entry(hash, sym, sym_mode); |
| Hashtable<Symbol*, mtSymbol>::add_entry(index, p); |
| return p; |
| } |
| |
| void SymbolPropertyTable::methods_do(void f(Method*)) { |
| for (int index = 0; index < table_size(); index++) { |
| for (SymbolPropertyEntry* p = bucket(index); p != NULL; p = p->next()) { |
| Method* prop = p->method(); |
| if (prop != NULL) { |
| f((Method*)prop); |
| } |
| } |
| } |
| } |
| |
| void SymbolPropertyTable::free_entry(SymbolPropertyEntry* entry) { |
| entry->free_entry(); |
| BasicHashtable<mtSymbol>::free_entry(entry); |
| } |
| |
| void DictionaryEntry::verify_protection_domain_set() { |
| assert(SafepointSynchronize::is_at_safepoint(), "must only be called as safepoint"); |
| for (ProtectionDomainEntry* current = pd_set_acquire(); // accessed at a safepoint |
| current != NULL; |
| current = current->next_acquire()) { |
| guarantee(oopDesc::is_oop_or_null(current->object_no_keepalive()), "Invalid oop"); |
| } |
| } |
| |
| void DictionaryEntry::print_count(outputStream *st) { |
| assert_locked_or_safepoint(SystemDictionary_lock); |
| int count = 0; |
| for (ProtectionDomainEntry* current = pd_set_acquire(); |
| current != NULL; |
| current = current->next_acquire()) { |
| count++; |
| } |
| st->print("pd set count = #%d", count); |
| } |
| |
| // ---------------------------------------------------------------------------- |
| |
| void Dictionary::print_on(outputStream* st) const { |
| ResourceMark rm; |
| |
| assert(loader_data() != NULL, "loader data should not be null"); |
| assert(!loader_data()->has_class_mirror_holder(), "cld should have a ClassLoader holder not a Class holder"); |
| st->print_cr("Java dictionary (table_size=%d, classes=%d, resizable=%s)", |
| table_size(), number_of_entries(), BOOL_TO_STR(_resizable)); |
| st->print_cr("^ indicates that initiating loader is different from defining loader"); |
| |
| for (int index = 0; index < table_size(); index++) { |
| for (DictionaryEntry* probe = bucket(index); |
| probe != NULL; |
| probe = probe->next()) { |
| Klass* e = probe->instance_klass(); |
| bool is_defining_class = |
| (loader_data() == e->class_loader_data()); |
| st->print("%4d: %s%s", index, is_defining_class ? " " : "^", e->external_name()); |
| ClassLoaderData* cld = e->class_loader_data(); |
| if (!loader_data()->is_the_null_class_loader_data()) { |
| // Class loader output for the dictionary for the null class loader data is |
| // redundant and obvious. |
| st->print(", "); |
| cld->print_value_on(st); |
| st->print(", "); |
| probe->print_count(st); |
| } |
| st->cr(); |
| } |
| } |
| tty->cr(); |
| } |
| |
| void DictionaryEntry::verify() { |
| Klass* e = instance_klass(); |
| guarantee(e->is_instance_klass(), |
| "Verify of dictionary failed"); |
| e->verify(); |
| verify_protection_domain_set(); |
| } |
| |
| void Dictionary::verify() { |
| guarantee(number_of_entries() >= 0, "Verify of dictionary failed"); |
| |
| ClassLoaderData* cld = loader_data(); |
| // class loader must be present; a null class loader is the |
| // boostrap loader |
| guarantee(cld != NULL || |
| cld->class_loader() == NULL || |
| cld->class_loader()->is_instance(), |
| "checking type of class_loader"); |
| |
| ResourceMark rm; |
| stringStream tempst; |
| tempst.print("System Dictionary for %s class loader", cld->loader_name_and_id()); |
| verify_table<DictionaryEntry>(tempst.as_string()); |
| } |
