src/hotspot/share/classfile/dictionary.cpp
author hseigel
Mon, 05 Mar 2018 10:29:23 -0500
changeset 49340 4e82736053ae
parent 49329 04ed29f9ef33
child 49348 fde3feaaa4ed
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8191102: Incorrect include file use in classLoader.hpp Summary: Move appropriate methods to <fiile>.inline.hpp files. Create <file>.inline.hpp files when needed. Reviewed-by: coleenp, dholmes
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/*
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 * Copyright (c) 2003, 2018, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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#include "precompiled.hpp"
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#include "classfile/classLoaderData.inline.hpp"
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#include "classfile/sharedClassUtil.hpp"
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#include "classfile/dictionary.inline.hpp"
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#include "classfile/protectionDomainCache.hpp"
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#include "classfile/systemDictionary.hpp"
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#include "classfile/systemDictionaryShared.hpp"
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#include "gc/shared/gcLocker.hpp"
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#include "logging/log.hpp"
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#include "logging/logStream.hpp"
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#include "memory/iterator.hpp"
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#include "memory/metaspaceClosure.hpp"
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#include "memory/resourceArea.hpp"
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#include "oops/oop.inline.hpp"
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#include "runtime/atomic.hpp"
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#include "runtime/orderAccess.inline.hpp"
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#include "utilities/hashtable.inline.hpp"
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// Optimization: if any dictionary needs resizing, we set this flag,
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// so that we dont't have to walk all dictionaries to check if any actually
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// needs resizing, which is costly to do at Safepoint.
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bool Dictionary::_some_dictionary_needs_resizing = false;
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size_t Dictionary::entry_size() {
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  if (DumpSharedSpaces) {
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    return SystemDictionaryShared::dictionary_entry_size();
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  } else {
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    return sizeof(DictionaryEntry);
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  }
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}
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Dictionary::Dictionary(ClassLoaderData* loader_data, int table_size, bool resizable)
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  : _loader_data(loader_data), _resizable(resizable), _needs_resizing(false),
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  Hashtable<InstanceKlass*, mtClass>(table_size, (int)entry_size()) {
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};
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Dictionary::Dictionary(ClassLoaderData* loader_data,
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                       int table_size, HashtableBucket<mtClass>* t,
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                       int number_of_entries, bool resizable)
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  : _loader_data(loader_data), _resizable(resizable), _needs_resizing(false),
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  Hashtable<InstanceKlass*, mtClass>(table_size, (int)entry_size(), t, number_of_entries) {
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};
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Dictionary::~Dictionary() {
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  DictionaryEntry* probe = NULL;
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  for (int index = 0; index < table_size(); index++) {
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    for (DictionaryEntry** p = bucket_addr(index); *p != NULL; ) {
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      probe = *p;
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      *p = probe->next();
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      free_entry(probe);
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    }
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  }
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  assert(number_of_entries() == 0, "should have removed all entries");
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  assert(new_entry_free_list() == NULL, "entry present on Dictionary's free list");
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  free_buckets();
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}
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DictionaryEntry* Dictionary::new_entry(unsigned int hash, InstanceKlass* klass) {
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  DictionaryEntry* entry = (DictionaryEntry*)Hashtable<InstanceKlass*, mtClass>::allocate_new_entry(hash, klass);
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  entry->set_pd_set(NULL);
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  assert(klass->is_instance_klass(), "Must be");
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  if (DumpSharedSpaces) {
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    SystemDictionaryShared::init_shared_dictionary_entry(klass, entry);
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  }
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  return entry;
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}
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void Dictionary::free_entry(DictionaryEntry* entry) {
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  // avoid recursion when deleting linked list
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  // pd_set is accessed during a safepoint.
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  while (entry->pd_set() != NULL) {
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    ProtectionDomainEntry* to_delete = entry->pd_set();
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    entry->set_pd_set(to_delete->next());
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    delete to_delete;
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  }
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  // Unlink from the Hashtable prior to freeing
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  unlink_entry(entry);
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  FREE_C_HEAP_ARRAY(char, entry);
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}
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const int _resize_load_trigger = 5;       // load factor that will trigger the resize
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const double _resize_factor    = 2.0;     // by how much we will resize using current number of entries
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const int _resize_max_size     = 40423;   // the max dictionary size allowed
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const int _primelist[] = {107, 1009, 2017, 4049, 5051, 10103, 20201, _resize_max_size};
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const int _prime_array_size = sizeof(_primelist)/sizeof(int);
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// Calculate next "good" dictionary size based on requested count
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static int calculate_dictionary_size(int requested) {
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  int newsize = _primelist[0];
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  int index = 0;
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  for (newsize = _primelist[index]; index < (_prime_array_size - 1);
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       newsize = _primelist[++index]) {
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    if (requested <= newsize) {
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      break;
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    }
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  }
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  return newsize;
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}
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bool Dictionary::does_any_dictionary_needs_resizing() {
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  return Dictionary::_some_dictionary_needs_resizing;
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}
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void Dictionary::check_if_needs_resize() {
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  if (_resizable == true) {
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    if (number_of_entries() > (_resize_load_trigger*table_size())) {
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      _needs_resizing = true;
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      Dictionary::_some_dictionary_needs_resizing = true;
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    }
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  }
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}
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bool Dictionary::resize_if_needed() {
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  int desired_size = 0;
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  if (_needs_resizing == true) {
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    desired_size = calculate_dictionary_size((int)(_resize_factor*number_of_entries()));
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    if (desired_size >= _resize_max_size) {
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      desired_size = _resize_max_size;
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      // We have reached the limit, turn resizing off
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      _resizable = false;
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    }
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    if ((desired_size != 0) && (desired_size != table_size())) {
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      if (!resize(desired_size)) {
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        // Something went wrong, turn resizing off
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        _resizable = false;
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      }
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    }
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  }
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  _needs_resizing = false;
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  Dictionary::_some_dictionary_needs_resizing = false;
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  return (desired_size != 0);
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}
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bool DictionaryEntry::contains_protection_domain(oop protection_domain) const {
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#ifdef ASSERT
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  if (protection_domain == instance_klass()->protection_domain()) {
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    // Ensure this doesn't show up in the pd_set (invariant)
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    bool in_pd_set = false;
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    for (ProtectionDomainEntry* current = pd_set_acquire();
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                                current != NULL;
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                                current = current->next()) {
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      if (current->object_no_keepalive() == protection_domain) {
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        in_pd_set = true;
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        break;
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      }
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    }
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    if (in_pd_set) {
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      assert(false, "A klass's protection domain should not show up "
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                    "in its sys. dict. PD set");
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    }
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  }
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#endif /* ASSERT */
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  if (protection_domain == instance_klass()->protection_domain()) {
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    // Succeeds trivially
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    return true;
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  }
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  for (ProtectionDomainEntry* current = pd_set_acquire();
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                              current != NULL;
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                              current = current->next()) {
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    if (current->object_no_keepalive() == protection_domain) return true;
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  }
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  return false;
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}
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void DictionaryEntry::add_protection_domain(Dictionary* dict, Handle protection_domain) {
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  assert_locked_or_safepoint(SystemDictionary_lock);
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  if (!contains_protection_domain(protection_domain())) {
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    ProtectionDomainCacheEntry* entry = SystemDictionary::cache_get(protection_domain);
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    ProtectionDomainEntry* new_head =
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                new ProtectionDomainEntry(entry, pd_set());
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    // Warning: Preserve store ordering.  The SystemDictionary is read
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    //          without locks.  The new ProtectionDomainEntry must be
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    //          complete before other threads can be allowed to see it
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    //          via a store to _pd_set.
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    release_set_pd_set(new_head);
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  }
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  LogTarget(Trace, protectiondomain) lt;
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  if (lt.is_enabled()) {
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    LogStream ls(lt);
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    print_count(&ls);
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  }
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}
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// During class loading we may have cached a protection domain that has
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// since been unreferenced, so this entry should be cleared.
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void Dictionary::clean_cached_protection_domains(BoolObjectClosure* is_alive, DictionaryEntry* probe) {
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  assert_locked_or_safepoint(SystemDictionary_lock);
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  ProtectionDomainEntry* current = probe->pd_set();
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  ProtectionDomainEntry* prev = NULL;
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  while (current != NULL) {
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    if (!is_alive->do_object_b(current->object_no_keepalive())) {
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      LogTarget(Debug, protectiondomain) lt;
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      if (lt.is_enabled()) {
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        ResourceMark rm;
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        // Print out trace information
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        LogStream ls(lt);
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        ls.print_cr("PD in set is not alive:");
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        ls.print("class loader: "); loader_data()->class_loader()->print_value_on(&ls);
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        ls.print(" protection domain: "); current->object_no_keepalive()->print_value_on(&ls);
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        ls.print(" loading: "); probe->instance_klass()->print_value_on(&ls);
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        ls.cr();
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      }
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      if (probe->pd_set() == current) {
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        probe->set_pd_set(current->next());
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      } else {
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        assert(prev != NULL, "should be set by alive entry");
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        prev->set_next(current->next());
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      }
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      ProtectionDomainEntry* to_delete = current;
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   242
      current = current->next();
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   243
      delete to_delete;
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   244
    } else {
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      prev = current;
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   246
      current = current->next();
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    }
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   248
  }
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   249
}
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void Dictionary::do_unloading(BoolObjectClosure* is_alive) {
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   253
  assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint");
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  // The NULL class loader doesn't initiate loading classes from other class loaders
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   256
  if (loader_data() == ClassLoaderData::the_null_class_loader_data()) {
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   257
    return;
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   258
  }
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   259
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   260
  // Remove unloaded entries and classes from this dictionary
1
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   261
  DictionaryEntry* probe = NULL;
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diff changeset
   262
  for (int index = 0; index < table_size(); index++) {
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   263
    for (DictionaryEntry** p = bucket_addr(index); *p != NULL; ) {
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   264
      probe = *p;
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   265
      InstanceKlass* ik = probe->instance_klass();
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   266
      ClassLoaderData* k_def_class_loader_data = ik->class_loader_data();
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   268
      // If the klass that this loader initiated is dead,
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   269
      // (determined by checking the defining class loader)
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   270
      // remove this entry.
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   271
      if (k_def_class_loader_data->is_unloading()) {
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   272
        assert(k_def_class_loader_data != loader_data(),
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   273
               "cannot have live defining loader and unreachable klass");
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   274
        *p = probe->next();
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   275
        free_entry(probe);
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   276
        continue;
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   277
      }
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   278
      // Clean pd_set
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   279
      clean_cached_protection_domains(is_alive, probe);
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   280
      p = probe->next_addr();
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   281
    }
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   282
  }
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   283
}
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   284
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   285
void Dictionary::remove_classes_in_error_state() {
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   286
  assert(DumpSharedSpaces, "supported only when dumping");
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   287
  DictionaryEntry* probe = NULL;
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   288
  for (int index = 0; index < table_size(); index++) {
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   289
    for (DictionaryEntry** p = bucket_addr(index); *p != NULL; ) {
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   290
      probe = *p;
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   291
      InstanceKlass* ik = probe->instance_klass();
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   292
      if (ik->is_in_error_state()) { // purge this entry
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   293
        *p = probe->next();
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   294
        free_entry(probe);
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   295
        ResourceMark rm;
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   296
        tty->print_cr("Preload Warning: Removed error class: %s", ik->external_name());
26135
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   297
        continue;
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   298
      }
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   299
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      p = probe->next_addr();
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   301
    }
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   302
  }
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   303
}
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   304
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   305
//   Just the classes from defining class loaders
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   306
void Dictionary::classes_do(void f(InstanceKlass*)) {
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   307
  for (int index = 0; index < table_size(); index++) {
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   308
    for (DictionaryEntry* probe = bucket(index);
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   309
                          probe != NULL;
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   310
                          probe = probe->next()) {
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   311
      InstanceKlass* k = probe->instance_klass();
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   312
      if (loader_data() == k->class_loader_data()) {
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   313
        f(k);
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   314
      }
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   315
    }
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   316
  }
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   317
}
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// Added for initialize_itable_for_klass to handle exceptions
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//   Just the classes from defining class loaders
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void Dictionary::classes_do(void f(InstanceKlass*, TRAPS), TRAPS) {
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  for (int index = 0; index < table_size(); index++) {
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    for (DictionaryEntry* probe = bucket(index);
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                          probe != NULL;
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                          probe = probe->next()) {
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      InstanceKlass* k = probe->instance_klass();
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      if (loader_data() == k->class_loader_data()) {
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        f(k, CHECK);
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   329
      }
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    }
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  }
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}
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// All classes, and their class loaders, including initiating class loaders
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void Dictionary::all_entries_do(void f(InstanceKlass*, ClassLoaderData*)) {
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  for (int index = 0; index < table_size(); index++) {
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   337
    for (DictionaryEntry* probe = bucket(index);
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                          probe != NULL;
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   339
                          probe = probe->next()) {
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      InstanceKlass* k = probe->instance_klass();
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      f(k, loader_data());
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    }
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  }
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}
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// Used to scan and relocate the classes during CDS archive dump.
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void Dictionary::classes_do(MetaspaceClosure* it) {
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  assert(DumpSharedSpaces, "dump-time only");
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   349
  for (int index = 0; index < table_size(); index++) {
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    for (DictionaryEntry* probe = bucket(index);
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                          probe != NULL;
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   352
                          probe = probe->next()) {
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   353
      it->push(probe->klass_addr());
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   354
      ((SharedDictionaryEntry*)probe)->metaspace_pointers_do(it);
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   355
    }
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   356
  }
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   357
}
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   358
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   359
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// Add a loaded class to the dictionary.
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   362
// Readers of the SystemDictionary aren't always locked, so _buckets
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parents:
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   363
// is volatile. The store of the next field in the constructor is
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parents:
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   364
// also cast to volatile;  we do this to ensure store order is maintained
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parents:
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   365
// by the compilers.
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   366
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void Dictionary::add_klass(unsigned int hash, Symbol* class_name,
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parents: 46274
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   368
                           InstanceKlass* obj) {
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   369
  assert_locked_or_safepoint(SystemDictionary_lock);
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   370
  assert(obj != NULL, "adding NULL obj");
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parents: 46274
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   371
  assert(obj->name() == class_name, "sanity check on name");
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   372
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   373
  DictionaryEntry* entry = new_entry(hash, obj);
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   374
  int index = hash_to_index(hash);
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   375
  add_entry(index, entry);
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   376
  check_if_needs_resize();
1
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parents:
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   377
}
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   378
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parents:
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   379
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   380
// This routine does not lock the dictionary.
1
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parents:
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   381
//
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parents:
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   382
// Since readers don't hold a lock, we must make sure that system
489c9b5090e2 Initial load
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parents:
diff changeset
   383
// dictionary entries are only removed at a safepoint (when only one
489c9b5090e2 Initial load
duke
parents:
diff changeset
   384
// thread is running), and are added to in a safe way (all links must
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parents:
diff changeset
   385
// be updated in an MT-safe manner).
489c9b5090e2 Initial load
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parents:
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   386
//
489c9b5090e2 Initial load
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parents:
diff changeset
   387
// Callers should be aware that an entry could be added just after
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parents:
diff changeset
   388
// _buckets[index] is read here, so the caller will not see the new entry.
489c9b5090e2 Initial load
duke
parents:
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   389
DictionaryEntry* Dictionary::get_entry(int index, unsigned int hash,
46729
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coleenp
parents: 46701
diff changeset
   390
                                       Symbol* class_name) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   391
  for (DictionaryEntry* entry = bucket(index);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   392
                        entry != NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   393
                        entry = entry->next()) {
46729
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46701
diff changeset
   394
    if (entry->hash() == hash && entry->equals(class_name)) {
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46701
diff changeset
   395
      if (!DumpSharedSpaces || SystemDictionaryShared::is_builtin(entry)) {
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46701
diff changeset
   396
        return entry;
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46701
diff changeset
   397
      }
1
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parents:
diff changeset
   398
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   399
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   400
  return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   401
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   402
489c9b5090e2 Initial load
duke
parents:
diff changeset
   403
47774
69c081ca110a 8184765: Dynamically resize SystemDictionary
gziemski
parents: 47761
diff changeset
   404
InstanceKlass* Dictionary::find(unsigned int hash, Symbol* name,
46729
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46701
diff changeset
   405
                                Handle protection_domain) {
47774
69c081ca110a 8184765: Dynamically resize SystemDictionary
gziemski
parents: 47761
diff changeset
   406
  NoSafepointVerifier nsv;
69c081ca110a 8184765: Dynamically resize SystemDictionary
gziemski
parents: 47761
diff changeset
   407
69c081ca110a 8184765: Dynamically resize SystemDictionary
gziemski
parents: 47761
diff changeset
   408
  int index = hash_to_index(hash);
46729
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coleenp
parents: 46701
diff changeset
   409
  DictionaryEntry* entry = get_entry(index, hash, name);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   410
  if (entry != NULL && entry->is_valid_protection_domain(protection_domain)) {
46729
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46701
diff changeset
   411
    return entry->instance_klass();
1
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duke
parents:
diff changeset
   412
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   413
    return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   414
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   415
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   416
489c9b5090e2 Initial load
duke
parents:
diff changeset
   417
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46274
diff changeset
   418
InstanceKlass* Dictionary::find_class(int index, unsigned int hash,
46729
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coleenp
parents: 46701
diff changeset
   419
                                      Symbol* name) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   420
  assert_locked_or_safepoint(SystemDictionary_lock);
46729
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46701
diff changeset
   421
  assert (index == index_for(name), "incorrect index?");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   422
46729
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coleenp
parents: 46701
diff changeset
   423
  DictionaryEntry* entry = get_entry(index, hash, name);
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46701
diff changeset
   424
  return (entry != NULL) ? entry->instance_klass() : NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   425
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   426
489c9b5090e2 Initial load
duke
parents:
diff changeset
   427
489c9b5090e2 Initial load
duke
parents:
diff changeset
   428
// Variant of find_class for shared classes.  No locking required, as
489c9b5090e2 Initial load
duke
parents:
diff changeset
   429
// that table is static.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   430
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46274
diff changeset
   431
InstanceKlass* Dictionary::find_shared_class(int index, unsigned int hash,
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46274
diff changeset
   432
                                             Symbol* name) {
46729
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46701
diff changeset
   433
  assert (index == index_for(name), "incorrect index?");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   434
46729
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46701
diff changeset
   435
  DictionaryEntry* entry = get_entry(index, hash, name);
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46701
diff changeset
   436
  return (entry != NULL) ? entry->instance_klass() : NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   437
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   438
489c9b5090e2 Initial load
duke
parents:
diff changeset
   439
489c9b5090e2 Initial load
duke
parents:
diff changeset
   440
void Dictionary::add_protection_domain(int index, unsigned int hash,
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46274
diff changeset
   441
                                       InstanceKlass* klass,
46729
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46701
diff changeset
   442
                                       Handle protection_domain,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   443
                                       TRAPS) {
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7397
diff changeset
   444
  Symbol*  klass_name = klass->name();
46729
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46701
diff changeset
   445
  DictionaryEntry* entry = get_entry(index, hash, klass_name);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   446
489c9b5090e2 Initial load
duke
parents:
diff changeset
   447
  assert(entry != NULL,"entry must be present, we just created it");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   448
  assert(protection_domain() != NULL,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   449
         "real protection domain should be present");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   450
46274
534d019edb92 8175104: Unhandled oop in ProtectionDomainCacheTable::compute_hash
coleenp
parents: 46271
diff changeset
   451
  entry->add_protection_domain(this, protection_domain);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   452
48811
58787a1708d2 8175249: VMThread::run fails in VerifyBeforeExit : Universe::verify
coleenp
parents: 48781
diff changeset
   453
#ifdef ASSERT
58787a1708d2 8175249: VMThread::run fails in VerifyBeforeExit : Universe::verify
coleenp
parents: 48781
diff changeset
   454
  assert(loader_data() != ClassLoaderData::the_null_class_loader_data(), "doesn't make sense");
58787a1708d2 8175249: VMThread::run fails in VerifyBeforeExit : Universe::verify
coleenp
parents: 48781
diff changeset
   455
#endif
58787a1708d2 8175249: VMThread::run fails in VerifyBeforeExit : Universe::verify
coleenp
parents: 48781
diff changeset
   456
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   457
  assert(entry->contains_protection_domain(protection_domain()),
489c9b5090e2 Initial load
duke
parents:
diff changeset
   458
         "now protection domain should be present");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   459
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   460
489c9b5090e2 Initial load
duke
parents:
diff changeset
   461
47774
69c081ca110a 8184765: Dynamically resize SystemDictionary
gziemski
parents: 47761
diff changeset
   462
bool Dictionary::is_valid_protection_domain(unsigned int hash,
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7397
diff changeset
   463
                                            Symbol* name,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   464
                                            Handle protection_domain) {
47774
69c081ca110a 8184765: Dynamically resize SystemDictionary
gziemski
parents: 47761
diff changeset
   465
  int index = hash_to_index(hash);
46729
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46701
diff changeset
   466
  DictionaryEntry* entry = get_entry(index, hash, name);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   467
  return entry->is_valid_protection_domain(protection_domain);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   468
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   469
47761
1b0566927c7a 8190191: Subclasses of jdk.jfr.Event loaded from CDS breaks -XX:FlightRecorderOptions=retransform=false
iklam
parents: 47216
diff changeset
   470
#if INCLUDE_CDS
1b0566927c7a 8190191: Subclasses of jdk.jfr.Event loaded from CDS breaks -XX:FlightRecorderOptions=retransform=false
iklam
parents: 47216
diff changeset
   471
static bool is_jfr_event_class(Klass *k) {
1b0566927c7a 8190191: Subclasses of jdk.jfr.Event loaded from CDS breaks -XX:FlightRecorderOptions=retransform=false
iklam
parents: 47216
diff changeset
   472
  while (k) {
1b0566927c7a 8190191: Subclasses of jdk.jfr.Event loaded from CDS breaks -XX:FlightRecorderOptions=retransform=false
iklam
parents: 47216
diff changeset
   473
    if (k->name()->equals("jdk/jfr/Event")) {
1b0566927c7a 8190191: Subclasses of jdk.jfr.Event loaded from CDS breaks -XX:FlightRecorderOptions=retransform=false
iklam
parents: 47216
diff changeset
   474
      return true;
1b0566927c7a 8190191: Subclasses of jdk.jfr.Event loaded from CDS breaks -XX:FlightRecorderOptions=retransform=false
iklam
parents: 47216
diff changeset
   475
    }
1b0566927c7a 8190191: Subclasses of jdk.jfr.Event loaded from CDS breaks -XX:FlightRecorderOptions=retransform=false
iklam
parents: 47216
diff changeset
   476
    k = k->super();
1b0566927c7a 8190191: Subclasses of jdk.jfr.Event loaded from CDS breaks -XX:FlightRecorderOptions=retransform=false
iklam
parents: 47216
diff changeset
   477
  }
1b0566927c7a 8190191: Subclasses of jdk.jfr.Event loaded from CDS breaks -XX:FlightRecorderOptions=retransform=false
iklam
parents: 47216
diff changeset
   478
  return false;
1b0566927c7a 8190191: Subclasses of jdk.jfr.Event loaded from CDS breaks -XX:FlightRecorderOptions=retransform=false
iklam
parents: 47216
diff changeset
   479
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   480
46746
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46742
diff changeset
   481
void Dictionary::reorder_dictionary_for_sharing() {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   482
489c9b5090e2 Initial load
duke
parents:
diff changeset
   483
  // Copy all the dictionary entries into a single master list.
49329
04ed29f9ef33 8194759: Support caching class mirror objects.
jiangli
parents: 48811
diff changeset
   484
  assert(DumpSharedSpaces, "Should only be used at dump time");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   485
489c9b5090e2 Initial load
duke
parents:
diff changeset
   486
  DictionaryEntry* master_list = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   487
  for (int i = 0; i < table_size(); ++i) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   488
    DictionaryEntry* p = bucket(i);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   489
    while (p != NULL) {
47103
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47098
diff changeset
   490
      DictionaryEntry* next = p->next();
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47098
diff changeset
   491
      InstanceKlass*ik = p->instance_klass();
49329
04ed29f9ef33 8194759: Support caching class mirror objects.
jiangli
parents: 48811
diff changeset
   492
      if (ik->has_signer_and_not_archived()) {
47761
1b0566927c7a 8190191: Subclasses of jdk.jfr.Event loaded from CDS breaks -XX:FlightRecorderOptions=retransform=false
iklam
parents: 47216
diff changeset
   493
        // We cannot include signed classes in the archive because the certificates
1b0566927c7a 8190191: Subclasses of jdk.jfr.Event loaded from CDS breaks -XX:FlightRecorderOptions=retransform=false
iklam
parents: 47216
diff changeset
   494
        // used during dump time may be different than those used during
1b0566927c7a 8190191: Subclasses of jdk.jfr.Event loaded from CDS breaks -XX:FlightRecorderOptions=retransform=false
iklam
parents: 47216
diff changeset
   495
        // runtime (due to expiration, etc).
47103
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47098
diff changeset
   496
        ResourceMark rm;
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47098
diff changeset
   497
        tty->print_cr("Preload Warning: Skipping %s from signed JAR",
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47098
diff changeset
   498
                       ik->name()->as_C_string());
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47098
diff changeset
   499
        free_entry(p);
47761
1b0566927c7a 8190191: Subclasses of jdk.jfr.Event loaded from CDS breaks -XX:FlightRecorderOptions=retransform=false
iklam
parents: 47216
diff changeset
   500
      } else if (is_jfr_event_class(ik)) {
1b0566927c7a 8190191: Subclasses of jdk.jfr.Event loaded from CDS breaks -XX:FlightRecorderOptions=retransform=false
iklam
parents: 47216
diff changeset
   501
        // We cannot include JFR event classes because they need runtime-specific
1b0566927c7a 8190191: Subclasses of jdk.jfr.Event loaded from CDS breaks -XX:FlightRecorderOptions=retransform=false
iklam
parents: 47216
diff changeset
   502
        // instrumentation in order to work with -XX:FlightRecorderOptions=retransform=false.
1b0566927c7a 8190191: Subclasses of jdk.jfr.Event loaded from CDS breaks -XX:FlightRecorderOptions=retransform=false
iklam
parents: 47216
diff changeset
   503
        // There are only a small number of these classes, so it's not worthwhile to
1b0566927c7a 8190191: Subclasses of jdk.jfr.Event loaded from CDS breaks -XX:FlightRecorderOptions=retransform=false
iklam
parents: 47216
diff changeset
   504
        // support them and make CDS more complicated.
1b0566927c7a 8190191: Subclasses of jdk.jfr.Event loaded from CDS breaks -XX:FlightRecorderOptions=retransform=false
iklam
parents: 47216
diff changeset
   505
        ResourceMark rm;
1b0566927c7a 8190191: Subclasses of jdk.jfr.Event loaded from CDS breaks -XX:FlightRecorderOptions=retransform=false
iklam
parents: 47216
diff changeset
   506
        tty->print_cr("Skipping JFR event class %s", ik->name()->as_C_string());
1b0566927c7a 8190191: Subclasses of jdk.jfr.Event loaded from CDS breaks -XX:FlightRecorderOptions=retransform=false
iklam
parents: 47216
diff changeset
   507
        free_entry(p);
47103
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47098
diff changeset
   508
      } else {
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47098
diff changeset
   509
        p->set_next(master_list);
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47098
diff changeset
   510
        master_list = p;
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47098
diff changeset
   511
      }
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 47098
diff changeset
   512
      p = next;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   513
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   514
    set_entry(i, NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   515
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   516
489c9b5090e2 Initial load
duke
parents:
diff changeset
   517
  // Add the dictionary entries back to the list in the correct buckets.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   518
  while (master_list != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   519
    DictionaryEntry* p = master_list;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   520
    master_list = master_list->next();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   521
    p->set_next(NULL);
46729
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46701
diff changeset
   522
    Symbol* class_name = p->instance_klass()->name();
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
   523
    // Since the null class loader data isn't copied to the CDS archive,
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
   524
    // compute the hash with NULL for loader data.
46729
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46701
diff changeset
   525
    unsigned int hash = compute_hash(class_name);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   526
    int index = hash_to_index(hash);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   527
    p->set_hash(hash);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   528
    p->set_next(bucket(index));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   529
    set_entry(index, p);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   530
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   531
}
47761
1b0566927c7a 8190191: Subclasses of jdk.jfr.Event loaded from CDS breaks -XX:FlightRecorderOptions=retransform=false
iklam
parents: 47216
diff changeset
   532
#endif
35498
392b50de06c6 8146401: Clean up oop.hpp: add inline directives and fix header files
goetz
parents: 34257
diff changeset
   533
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 670
diff changeset
   534
SymbolPropertyTable::SymbolPropertyTable(int table_size)
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 11628
diff changeset
   535
  : Hashtable<Symbol*, mtSymbol>(table_size, sizeof(SymbolPropertyEntry))
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 670
diff changeset
   536
{
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 670
diff changeset
   537
}
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 11628
diff changeset
   538
SymbolPropertyTable::SymbolPropertyTable(int table_size, HashtableBucket<mtSymbol>* t,
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 670
diff changeset
   539
                                         int number_of_entries)
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 11628
diff changeset
   540
  : Hashtable<Symbol*, mtSymbol>(table_size, sizeof(SymbolPropertyEntry), t, number_of_entries)
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 670
diff changeset
   541
{
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 670
diff changeset
   542
}
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 670
diff changeset
   543
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 670
diff changeset
   544
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 670
diff changeset
   545
SymbolPropertyEntry* SymbolPropertyTable::find_entry(int index, unsigned int hash,
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7397
diff changeset
   546
                                                     Symbol* sym,
5420
586d3988e72b 6939134: JSR 292 adjustments to method handle invocation
jrose
parents: 2534
diff changeset
   547
                                                     intptr_t sym_mode) {
586d3988e72b 6939134: JSR 292 adjustments to method handle invocation
jrose
parents: 2534
diff changeset
   548
  assert(index == index_for(sym, sym_mode), "incorrect index?");
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 670
diff changeset
   549
  for (SymbolPropertyEntry* p = bucket(index); p != NULL; p = p->next()) {
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7397
diff changeset
   550
    if (p->hash() == hash && p->symbol() == sym && p->symbol_mode() == sym_mode) {
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 670
diff changeset
   551
      return p;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 670
diff changeset
   552
    }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 670
diff changeset
   553
  }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 670
diff changeset
   554
  return NULL;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 670
diff changeset
   555
}
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 670
diff changeset
   556
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 670
diff changeset
   557
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 670
diff changeset
   558
SymbolPropertyEntry* SymbolPropertyTable::add_entry(int index, unsigned int hash,
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7397
diff changeset
   559
                                                    Symbol* sym, intptr_t sym_mode) {
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 670
diff changeset
   560
  assert_locked_or_safepoint(SystemDictionary_lock);
5420
586d3988e72b 6939134: JSR 292 adjustments to method handle invocation
jrose
parents: 2534
diff changeset
   561
  assert(index == index_for(sym, sym_mode), "incorrect index?");
586d3988e72b 6939134: JSR 292 adjustments to method handle invocation
jrose
parents: 2534
diff changeset
   562
  assert(find_entry(index, hash, sym, sym_mode) == NULL, "no double entry");
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 670
diff changeset
   563
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7397
diff changeset
   564
  SymbolPropertyEntry* p = new_entry(hash, sym, sym_mode);
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 11628
diff changeset
   565
  Hashtable<Symbol*, mtSymbol>::add_entry(index, p);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 670
diff changeset
   566
  return p;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 670
diff changeset
   567
}
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 670
diff changeset
   568
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 670
diff changeset
   569
void SymbolPropertyTable::oops_do(OopClosure* f) {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 670
diff changeset
   570
  for (int index = 0; index < table_size(); index++) {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 670
diff changeset
   571
    for (SymbolPropertyEntry* p = bucket(index); p != NULL; p = p->next()) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
   572
      if (p->method_type() != NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
   573
        f->do_oop(p->method_type_addr());
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 670
diff changeset
   574
      }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 670
diff changeset
   575
    }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 670
diff changeset
   576
  }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 670
diff changeset
   577
}
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 670
diff changeset
   578
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
   579
void SymbolPropertyTable::methods_do(void f(Method*)) {
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 670
diff changeset
   580
  for (int index = 0; index < table_size(); index++) {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 670
diff changeset
   581
    for (SymbolPropertyEntry* p = bucket(index); p != NULL; p = p->next()) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
   582
      Method* prop = p->method();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
   583
      if (prop != NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13195
diff changeset
   584
        f((Method*)prop);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 670
diff changeset
   585
      }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 670
diff changeset
   586
    }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 670
diff changeset
   587
  }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 670
diff changeset
   588
}
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 670
diff changeset
   589
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   590
489c9b5090e2 Initial load
duke
parents:
diff changeset
   591
// ----------------------------------------------------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
   592
46742
24ec8a039c90 8184994: Add Dictionary size logging and jcmd
coleenp
parents: 46729
diff changeset
   593
void Dictionary::print_on(outputStream* st) const {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   594
  ResourceMark rm;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   595
46729
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46701
diff changeset
   596
  assert(loader_data() != NULL, "loader data should not be null");
46742
24ec8a039c90 8184994: Add Dictionary size logging and jcmd
coleenp
parents: 46729
diff changeset
   597
  st->print_cr("Java dictionary (table_size=%d, classes=%d)",
24ec8a039c90 8184994: Add Dictionary size logging and jcmd
coleenp
parents: 46729
diff changeset
   598
               table_size(), number_of_entries());
24ec8a039c90 8184994: Add Dictionary size logging and jcmd
coleenp
parents: 46729
diff changeset
   599
  st->print_cr("^ indicates that initiating loader is different from defining loader");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   600
489c9b5090e2 Initial load
duke
parents:
diff changeset
   601
  for (int index = 0; index < table_size(); index++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   602
    for (DictionaryEntry* probe = bucket(index);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   603
                          probe != NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   604
                          probe = probe->next()) {
46729
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46701
diff changeset
   605
      Klass* e = probe->instance_klass();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   606
      bool is_defining_class =
46729
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46701
diff changeset
   607
         (loader_data() == e->class_loader_data());
46742
24ec8a039c90 8184994: Add Dictionary size logging and jcmd
coleenp
parents: 46729
diff changeset
   608
      st->print("%4d: %s%s, loader ", index, is_defining_class ? " " : "^", e->external_name());
24ec8a039c90 8184994: Add Dictionary size logging and jcmd
coleenp
parents: 46729
diff changeset
   609
      ClassLoaderData* loader_data = e->class_loader_data();
24ec8a039c90 8184994: Add Dictionary size logging and jcmd
coleenp
parents: 46729
diff changeset
   610
      if (loader_data == NULL) {
24ec8a039c90 8184994: Add Dictionary size logging and jcmd
coleenp
parents: 46729
diff changeset
   611
        // Shared class not restored yet in shared dictionary
24ec8a039c90 8184994: Add Dictionary size logging and jcmd
coleenp
parents: 46729
diff changeset
   612
        st->print("<shared, not restored>");
24ec8a039c90 8184994: Add Dictionary size logging and jcmd
coleenp
parents: 46729
diff changeset
   613
      } else {
24ec8a039c90 8184994: Add Dictionary size logging and jcmd
coleenp
parents: 46729
diff changeset
   614
        loader_data->print_value_on(st);
39982
1a3808e3f4d9 8138760: [JVMCI] VM warning: Performance bug: SystemDictionary lookup_count=21831450 lookup_length=1275207287 average=58.411479 load=5.572844
gziemski
parents: 38259
diff changeset
   615
      }
46742
24ec8a039c90 8184994: Add Dictionary size logging and jcmd
coleenp
parents: 46729
diff changeset
   616
      st->cr();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   617
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   618
  }
20405
3321f6b16639 8003420: NPG: make new GC root for pd_set
tschatzl
parents: 18439
diff changeset
   619
  tty->cr();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   620
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   621
46475
75902cea18af 8166848: Performance bug: SystemDictionary - optimization
coleenp
parents: 46382
diff changeset
   622
void DictionaryEntry::verify() {
46729
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46701
diff changeset
   623
  Klass* e = instance_klass();
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46701
diff changeset
   624
  guarantee(e->is_instance_klass(),
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46701
diff changeset
   625
                          "Verify of dictionary failed");
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46701
diff changeset
   626
  e->verify();
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46701
diff changeset
   627
  verify_protection_domain_set();
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46701
diff changeset
   628
}
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46701
diff changeset
   629
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46701
diff changeset
   630
void Dictionary::verify() {
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46701
diff changeset
   631
  guarantee(number_of_entries() >= 0, "Verify of dictionary failed");
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46701
diff changeset
   632
46475
75902cea18af 8166848: Performance bug: SystemDictionary - optimization
coleenp
parents: 46382
diff changeset
   633
  ClassLoaderData* cld = loader_data();
75902cea18af 8166848: Performance bug: SystemDictionary - optimization
coleenp
parents: 46382
diff changeset
   634
  // class loader must be present;  a null class loader is the
75902cea18af 8166848: Performance bug: SystemDictionary - optimization
coleenp
parents: 46382
diff changeset
   635
  // boostrap loader
75902cea18af 8166848: Performance bug: SystemDictionary - optimization
coleenp
parents: 46382
diff changeset
   636
  guarantee(cld != NULL || DumpSharedSpaces ||
75902cea18af 8166848: Performance bug: SystemDictionary - optimization
coleenp
parents: 46382
diff changeset
   637
            cld->class_loader() == NULL ||
75902cea18af 8166848: Performance bug: SystemDictionary - optimization
coleenp
parents: 46382
diff changeset
   638
            cld->class_loader()->is_instance(),
75902cea18af 8166848: Performance bug: SystemDictionary - optimization
coleenp
parents: 46382
diff changeset
   639
            "checking type of class_loader");
46729
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46701
diff changeset
   640
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46701
diff changeset
   641
  ResourceMark rm;
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46701
diff changeset
   642
  stringStream tempst;
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46701
diff changeset
   643
  tempst.print("System Dictionary for %s", cld->loader_name());
c62d2e8b2728 7133093: Improve system dictionary performance
coleenp
parents: 46701
diff changeset
   644
  verify_table<DictionaryEntry>(tempst.as_string());
42073
89e056fd82cc 8166145: runtime/threads/ThreadInterruptTest3 fails with ExitCode 0
gziemski
parents: 39982
diff changeset
   645
}