54 // Array klasses have primary supertypes which are not reported to Java. 55 // Example super chain: String[][] -> Object[][] -> Object[] -> Object 56 return SystemDictionary::Object_klass(); 57 } 58 59 60 oop ArrayKlass::multi_allocate(int rank, jint* sizes, TRAPS) { 61 ShouldNotReachHere(); 62 return NULL; 63 } 64 65 // find field according to JVM spec 5.4.3.2, returns the klass in which the field is defined 66 Klass* ArrayKlass::find_field(Symbol* name, Symbol* sig, fieldDescriptor* fd) const { 67 // There are no fields in an array klass but look to the super class (Object) 68 assert(super(), "super klass must be present"); 69 return super()->find_field(name, sig, fd); 70 } 71 72 Method* ArrayKlass::uncached_lookup_method(const Symbol* name, 73 const Symbol* signature, 74 OverpassLookupMode overpass_mode) const { 75 // There are no methods in an array klass but the super class (Object) has some 76 assert(super(), "super klass must be present"); 77 // Always ignore overpass methods in superclasses, although technically the 78 // super klass of an array, (j.l.Object) should not have 79 // any overpass methods present. 80 return super()->uncached_lookup_method(name, signature, Klass::skip_overpass); 81 } 82 83 ArrayKlass::ArrayKlass(Symbol* name) : 84 _dimension(1), 85 _higher_dimension(NULL), 86 _lower_dimension(NULL) { 87 // Arrays don't add any new methods, so their vtable is the same size as 88 // the vtable of klass Object. 89 set_vtable_length(Universe::base_vtable_size()); 90 set_name(name); 91 set_super(Universe::is_bootstrapping() ? (Klass*)NULL : SystemDictionary::Object_klass()); 92 set_layout_helper(Klass::_lh_neutral_value); 93 set_is_cloneable(); // All arrays are considered to be cloneable (See JLS 20.1.5) 94 TRACE_INIT_ID(this); 95 } 96 97 98 // Initialization of vtables and mirror object is done separatly from base_create_array_klass, 99 // since a GC can happen. At this point all instance variables of the ArrayKlass must be setup. 100 void ArrayKlass::complete_create_array_klass(ArrayKlass* k, Klass* super_klass, ModuleEntry* module_entry, TRAPS) { | 54 // Array klasses have primary supertypes which are not reported to Java. 55 // Example super chain: String[][] -> Object[][] -> Object[] -> Object 56 return SystemDictionary::Object_klass(); 57 } 58 59 60 oop ArrayKlass::multi_allocate(int rank, jint* sizes, TRAPS) { 61 ShouldNotReachHere(); 62 return NULL; 63 } 64 65 // find field according to JVM spec 5.4.3.2, returns the klass in which the field is defined 66 Klass* ArrayKlass::find_field(Symbol* name, Symbol* sig, fieldDescriptor* fd) const { 67 // There are no fields in an array klass but look to the super class (Object) 68 assert(super(), "super klass must be present"); 69 return super()->find_field(name, sig, fd); 70 } 71 72 Method* ArrayKlass::uncached_lookup_method(const Symbol* name, 73 const Symbol* signature, 74 OverpassLookupMode overpass_mode, 75 PrivateLookupMode private_mode) const { 76 // There are no methods in an array klass but the super class (Object) has some 77 assert(super(), "super klass must be present"); 78 // Always ignore overpass methods in superclasses, although technically the 79 // super klass of an array, (j.l.Object) should not have 80 // any overpass methods present. 81 return super()->uncached_lookup_method(name, signature, Klass::skip_overpass, private_mode); 82 } 83 84 ArrayKlass::ArrayKlass(Symbol* name) : 85 _dimension(1), 86 _higher_dimension(NULL), 87 _lower_dimension(NULL) { 88 // Arrays don't add any new methods, so their vtable is the same size as 89 // the vtable of klass Object. 90 set_vtable_length(Universe::base_vtable_size()); 91 set_name(name); 92 set_super(Universe::is_bootstrapping() ? (Klass*)NULL : SystemDictionary::Object_klass()); 93 set_layout_helper(Klass::_lh_neutral_value); 94 set_is_cloneable(); // All arrays are considered to be cloneable (See JLS 20.1.5) 95 TRACE_INIT_ID(this); 96 } 97 98 99 // Initialization of vtables and mirror object is done separatly from base_create_array_klass, 100 // since a GC can happen. At this point all instance variables of the ArrayKlass must be setup. 101 void ArrayKlass::complete_create_array_klass(ArrayKlass* k, Klass* super_klass, ModuleEntry* module_entry, TRAPS) { |