1 /* 2 * Copyright (c) 2014, 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #ifndef SHARE_VM_CLASSFILE_SYSTEMDICTIONARYSHARED_HPP 26 #define SHARE_VM_CLASSFILE_SYSTEMDICTIONARYSHARED_HPP 27 28 #include "classfile/systemDictionary.hpp" 29 #include "classfile/dictionary.hpp" 30 31 class ClassFileStream; 32 class SerializeClosure; 33 34 class SystemDictionaryShared: public SystemDictionary { 35 public: 36 static void initialize(TRAPS) {} 37 static instanceKlassHandle find_or_load_shared_class(Symbol* class_name, 38 Handle class_loader, 39 TRAPS) { 40 return instanceKlassHandle(); 41 } 42 static void roots_oops_do(OopClosure* blk) {} 43 static void oops_do(OopClosure* f) {} 44 static bool is_sharing_possible(ClassLoaderData* loader_data) { 45 oop class_loader = loader_data->class_loader(); 46 return (class_loader == NULL); 47 } 48 static bool is_shared_class_visible_for_classloader( 49 instanceKlassHandle ik, 50 Handle class_loader, 51 const char* pkg_string, 52 Symbol* pkg_name, 53 PackageEntry* pkg_entry, 54 ModuleEntry* mod_entry, 55 TRAPS) { 56 return false; 57 } 58 59 static Klass* dump_time_resolve_super_or_fail(Symbol* child_name, 60 Symbol* class_name, 61 Handle class_loader, 62 Handle protection_domain, 63 bool is_superclass, 64 TRAPS) { 65 return NULL; 66 } 67 68 static size_t dictionary_entry_size() { 69 return sizeof(DictionaryEntry); 70 } 71 72 static void init_shared_dictionary_entry(Klass* k, DictionaryEntry* entry) {} 73 74 static InstanceKlass* lookup_from_stream(Symbol* class_name, 75 Handle class_loader, 76 Handle protection_domain, 77 const ClassFileStream* st, 78 TRAPS) { 79 return NULL; 80 } 81 82 static void serialize(SerializeClosure* soc) {} 83 84 // The (non-application) CDS implementation supports only classes in the boot 85 // class loader, which ensures that the verification constraints are the same 86 // during archive creation time and runtime. Thus we can do the constraint checks 87 // entirely during archive creation time. 88 static bool add_verification_constraint(Klass* k, Symbol* name, 89 Symbol* from_name, bool from_field_is_protected, 90 bool from_is_array, bool from_is_object) {return false;} 91 static void finalize_verification_constraints() {} 92 static void check_verification_constraints(instanceKlassHandle klass, 93 TRAPS) {} 94 }; 95 96 #endif // SHARE_VM_CLASSFILE_SYSTEMDICTIONARYSHARED_HPP