118
119 // return true if class_name contains no '.' (internal format is '/')
120 bool SystemDictionary::is_internal_format(Symbol* class_name) {
121 if (class_name != NULL) {
122 ResourceMark rm;
123 char* name = class_name->as_C_string();
124 return strchr(name, '.') == NULL;
125 } else {
126 return true;
127 }
128 }
129
130 #endif
131
132 // ----------------------------------------------------------------------------
133 // Parallel class loading check
134
135 bool SystemDictionary::is_parallelCapable(Handle class_loader) {
136 if (UnsyncloadClass || class_loader.is_null()) return true;
137 if (AlwaysLockClassLoader) return false;
138 return java_lang_ClassLoader::parallelCapable(class_loader());
139 }
140 // ----------------------------------------------------------------------------
141 // ParallelDefineClass flag does not apply to bootclass loader
142 bool SystemDictionary::is_parallelDefine(Handle class_loader) {
143 if (class_loader.is_null()) return false;
144 if (AllowParallelDefineClass && java_lang_ClassLoader::parallelCapable(class_loader())) {
145 return true;
146 }
147 return false;
148 }
149 // ----------------------------------------------------------------------------
150 // Resolving of classes
151
152 // Forwards to resolve_or_null
153
154 Klass* SystemDictionary::resolve_or_fail(Symbol* class_name, Handle class_loader, Handle protection_domain, bool throw_error, TRAPS) {
155 Klass* klass = resolve_or_null(class_name, class_loader, protection_domain, THREAD);
156 if (HAS_PENDING_EXCEPTION || klass == NULL) {
157 KlassHandle k_h(THREAD, klass);
158 // can return a null klass
159 klass = handle_resolution_exception(class_name, class_loader, protection_domain, throw_error, k_h, THREAD);
160 }
161 return klass;
162 }
163
164 Klass* SystemDictionary::handle_resolution_exception(Symbol* class_name, Handle class_loader, Handle protection_domain, bool throw_error, KlassHandle klass_h, TRAPS) {
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118
119 // return true if class_name contains no '.' (internal format is '/')
120 bool SystemDictionary::is_internal_format(Symbol* class_name) {
121 if (class_name != NULL) {
122 ResourceMark rm;
123 char* name = class_name->as_C_string();
124 return strchr(name, '.') == NULL;
125 } else {
126 return true;
127 }
128 }
129
130 #endif
131
132 // ----------------------------------------------------------------------------
133 // Parallel class loading check
134
135 bool SystemDictionary::is_parallelCapable(Handle class_loader) {
136 if (UnsyncloadClass || class_loader.is_null()) return true;
137 if (AlwaysLockClassLoader) return false;
138 // fullyConcurrent subsumes the parallelCapable test but
139 // maybe this should be inside java_lang_ClassLoader::parallelCapable?
140 return java_lang_ClassLoader::fullyConcurrent(class_loader()) ||
141 java_lang_ClassLoader::parallelCapable(class_loader());
142 }
143 // ----------------------------------------------------------------------------
144 // ParallelDefineClass flag does not apply to bootclass loader
145 bool SystemDictionary::is_parallelDefine(Handle class_loader) {
146 if (class_loader.is_null()) return false;
147 if (java_lang_ClassLoader::fullyConcurrent(class_loader()) ||
148 AllowParallelDefineClass && java_lang_ClassLoader::parallelCapable(class_loader())) {
149 if (TraceClassLoading)
150 tty->print_cr("Parallel define permitted for loader: %p", class_loader());
151 return true;
152 }
153 return false;
154 }
155 // ----------------------------------------------------------------------------
156 // Resolving of classes
157
158 // Forwards to resolve_or_null
159
160 Klass* SystemDictionary::resolve_or_fail(Symbol* class_name, Handle class_loader, Handle protection_domain, bool throw_error, TRAPS) {
161 Klass* klass = resolve_or_null(class_name, class_loader, protection_domain, THREAD);
162 if (HAS_PENDING_EXCEPTION || klass == NULL) {
163 KlassHandle k_h(THREAD, klass);
164 // can return a null klass
165 klass = handle_resolution_exception(class_name, class_loader, protection_domain, throw_error, k_h, THREAD);
166 }
167 return klass;
168 }
169
170 Klass* SystemDictionary::handle_resolution_exception(Symbol* class_name, Handle class_loader, Handle protection_domain, bool throw_error, KlassHandle klass_h, TRAPS) {
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