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 #include "precompiled.hpp"
26 #include "classfile/moduleEntry.hpp"
27 #include "classfile/packageEntry.hpp"
28 #include "classfile/symbolTable.hpp"
29 #include "classfile/vmClasses.hpp"
30 #include "classfile/vmSymbols.hpp"
31 #include "gc/shared/collectedHeap.inline.hpp"
32 #include "memory/iterator.inline.hpp"
33 #include "memory/metadataFactory.hpp"
34 #include "memory/metaspaceClosure.hpp"
35 #include "memory/resourceArea.hpp"
36 #include "memory/universe.hpp"
37 #include "oops/arrayKlass.hpp"
38 #include "oops/instanceKlass.hpp"
39 #include "oops/klass.inline.hpp"
40 #include "oops/objArrayKlass.inline.hpp"
41 #include "oops/objArrayOop.inline.hpp"
42 #include "oops/oop.inline.hpp"
43 #include "oops/symbol.hpp"
44 #include "runtime/handles.inline.hpp"
45 #include "runtime/mutexLocker.hpp"
46 #include "utilities/macros.hpp"
47
48 ObjArrayKlass* ObjArrayKlass::allocate(ClassLoaderData* loader_data, int n, Klass* k, Symbol* name, TRAPS) {
49 assert(ObjArrayKlass::header_size() <= InstanceKlass::header_size(),
50 "array klasses must be same size as InstanceKlass");
51
52 int size = ArrayKlass::static_size(ObjArrayKlass::header_size());
53
54 return new (loader_data, size, THREAD) ObjArrayKlass(n, k, name);
55 }
56
57 ObjArrayKlass* ObjArrayKlass::allocate_objArray_klass(ClassLoaderData* loader_data,
58 int n, Klass* element_klass, TRAPS) {
59
60 // Eagerly allocate the direct array supertype.
61 Klass* super_klass = nullptr;
62 if (!Universe::is_bootstrapping() || vmClasses::Object_klass_loaded()) {
63 Klass* element_super = element_klass->super();
64 if (element_super != nullptr) {
65 // The element type has a direct super. E.g., String[] has direct super of Object[].
66 super_klass = element_super->array_klass_or_null();
67 bool supers_exist = super_klass != nullptr;
68 // Also, see if the element has secondary supertypes.
69 // We need an array type for each.
70 const Array<Klass*>* element_supers = element_klass->secondary_supers();
71 for( int i = element_supers->length()-1; i >= 0; i-- ) {
72 Klass* elem_super = element_supers->at(i);
73 if (elem_super->array_klass_or_null() == nullptr) {
74 supers_exist = false;
75 break;
76 }
77 }
78 if (!supers_exist) {
79 // Oops. Not allocated yet. Back out, allocate it, and retry.
80 Klass* ek = nullptr;
81 {
82 MutexUnlocker mu(MultiArray_lock);
83 super_klass = element_super->array_klass(CHECK_NULL);
84 for( int i = element_supers->length()-1; i >= 0; i-- ) {
85 Klass* elem_super = element_supers->at(i);
86 elem_super->array_klass(CHECK_NULL);
87 }
88 // Now retry from the beginning
89 ek = element_klass->array_klass(n, CHECK_NULL);
90 } // re-lock
91 return ObjArrayKlass::cast(ek);
92 }
93 } else {
94 // The element type is already Object. Object[] has direct super of Object.
95 super_klass = vmClasses::Object_klass();
96 }
97 }
98
99 // Create type name for klass.
100 Symbol* name = nullptr;
101 {
102 ResourceMark rm(THREAD);
103 char *name_str = element_klass->name()->as_C_string();
104 int len = element_klass->name()->utf8_length();
105 char *new_str = NEW_RESOURCE_ARRAY(char, len + 4);
106 int idx = 0;
107 new_str[idx++] = JVM_SIGNATURE_ARRAY;
108 if (element_klass->is_instance_klass()) { // it could be an array or simple type
109 new_str[idx++] = JVM_SIGNATURE_CLASS;
110 }
111 memcpy(&new_str[idx], name_str, len * sizeof(char));
112 idx += len;
113 if (element_klass->is_instance_klass()) {
114 new_str[idx++] = JVM_SIGNATURE_ENDCLASS;
115 }
116 new_str[idx++] = '\0';
117 name = SymbolTable::new_symbol(new_str);
118 }
119
120 // Initialize instance variables
121 ObjArrayKlass* oak = ObjArrayKlass::allocate(loader_data, n, element_klass, name, CHECK_NULL);
122
123 ModuleEntry* module = oak->module();
124 assert(module != nullptr, "No module entry for array");
125
126 // Call complete_create_array_klass after all instance variables has been initialized.
127 ArrayKlass::complete_create_array_klass(oak, super_klass, module, CHECK_NULL);
128
129 // Add all classes to our internal class loader list here,
130 // including classes in the bootstrap (null) class loader.
131 // Do this step after creating the mirror so that if the
132 // mirror creation fails, loaded_classes_do() doesn't find
133 // an array class without a mirror.
134 loader_data->add_class(oak);
135
136 return oak;
137 }
138
139 ObjArrayKlass::ObjArrayKlass(int n, Klass* element_klass, Symbol* name) : ArrayKlass(name, Kind) {
140 set_dimension(n);
141 set_element_klass(element_klass);
142
143 Klass* bk;
144 if (element_klass->is_objArray_klass()) {
145 bk = ObjArrayKlass::cast(element_klass)->bottom_klass();
146 } else {
147 bk = element_klass;
148 }
149 assert(bk != nullptr && (bk->is_instance_klass() || bk->is_typeArray_klass()), "invalid bottom klass");
150 set_bottom_klass(bk);
151 set_class_loader_data(bk->class_loader_data());
152
153 set_layout_helper(array_layout_helper(T_OBJECT));
154 assert(is_array_klass(), "sanity");
155 assert(is_objArray_klass(), "sanity");
156 }
157
158 size_t ObjArrayKlass::oop_size(oop obj) const {
159 assert(obj->is_objArray(), "must be object array");
160 return objArrayOop(obj)->object_size();
161 }
162
163 objArrayOop ObjArrayKlass::allocate(int length, TRAPS) {
164 check_array_allocation_length(length, arrayOopDesc::max_array_length(T_OBJECT), CHECK_NULL);
165 size_t size = objArrayOopDesc::object_size(length);
166 return (objArrayOop)Universe::heap()->array_allocate(this, size, length,
167 /* do_zero */ true, THREAD);
168 }
169
170 oop ObjArrayKlass::multi_allocate(int rank, jint* sizes, TRAPS) {
171 int length = *sizes;
172 ArrayKlass* ld_klass = lower_dimension();
173 // If length < 0 allocate will throw an exception.
174 objArrayOop array = allocate(length, CHECK_NULL);
175 objArrayHandle h_array (THREAD, array);
176 if (rank > 1) {
177 if (length != 0) {
178 for (int index = 0; index < length; index++) {
179 oop sub_array = ld_klass->multi_allocate(rank - 1, &sizes[1], CHECK_NULL);
180 h_array->obj_at_put(index, sub_array);
181 }
182 } else {
183 // Since this array dimension has zero length, nothing will be
184 // allocated, however the lower dimension values must be checked
185 // for illegal values.
186 for (int i = 0; i < rank - 1; ++i) {
187 sizes += 1;
188 if (*sizes < 0) {
189 THROW_MSG_0(vmSymbols::java_lang_NegativeArraySizeException(), err_msg("%d", *sizes));
190 }
191 }
192 }
193 }
194 return h_array();
195 }
196
197 // Either oop or narrowOop depending on UseCompressedOops.
198 void ObjArrayKlass::do_copy(arrayOop s, size_t src_offset,
199 arrayOop d, size_t dst_offset, int length, TRAPS) {
200 if (s == d) {
201 // since source and destination are equal we do not need conversion checks.
202 assert(length > 0, "sanity check");
203 ArrayAccess<>::oop_arraycopy(s, src_offset, d, dst_offset, length);
204 } else {
205 // We have to make sure all elements conform to the destination array
206 Klass* bound = ObjArrayKlass::cast(d->klass())->element_klass();
207 Klass* stype = ObjArrayKlass::cast(s->klass())->element_klass();
208 if (stype == bound || stype->is_subtype_of(bound)) {
209 // elements are guaranteed to be subtypes, so no check necessary
210 ArrayAccess<ARRAYCOPY_DISJOINT>::oop_arraycopy(s, src_offset, d, dst_offset, length);
211 } else {
212 // slow case: need individual subtype checks
213 // note: don't use obj_at_put below because it includes a redundant store check
214 if (!ArrayAccess<ARRAYCOPY_DISJOINT | ARRAYCOPY_CHECKCAST>::oop_arraycopy(s, src_offset, d, dst_offset, length)) {
215 ResourceMark rm(THREAD);
216 stringStream ss;
217 if (!bound->is_subtype_of(stype)) {
218 ss.print("arraycopy: type mismatch: can not copy %s[] into %s[]",
219 stype->external_name(), bound->external_name());
220 } else {
221 // oop_arraycopy should return the index in the source array that
222 // contains the problematic oop.
223 ss.print("arraycopy: element type mismatch: can not cast one of the elements"
224 " of %s[] to the type of the destination array, %s",
225 stype->external_name(), bound->external_name());
226 }
227 THROW_MSG(vmSymbols::java_lang_ArrayStoreException(), ss.as_string());
228 }
229 }
230 }
231 }
232
233 void ObjArrayKlass::copy_array(arrayOop s, int src_pos, arrayOop d,
234 int dst_pos, int length, TRAPS) {
235 assert(s->is_objArray(), "must be obj array");
236
237 if (!d->is_objArray()) {
238 ResourceMark rm(THREAD);
239 stringStream ss;
240 if (d->is_typeArray()) {
241 ss.print("arraycopy: type mismatch: can not copy object array[] into %s[]",
242 type2name_tab[ArrayKlass::cast(d->klass())->element_type()]);
243 } else {
244 ss.print("arraycopy: destination type %s is not an array", d->klass()->external_name());
245 }
246 THROW_MSG(vmSymbols::java_lang_ArrayStoreException(), ss.as_string());
247 }
248
249 // Check is all offsets and lengths are non negative
250 if (src_pos < 0 || dst_pos < 0 || length < 0) {
251 // Pass specific exception reason.
252 ResourceMark rm(THREAD);
253 stringStream ss;
254 if (src_pos < 0) {
255 ss.print("arraycopy: source index %d out of bounds for object array[%d]",
256 src_pos, s->length());
359 return (element_flags & (JVM_ACC_PUBLIC | JVM_ACC_PRIVATE | JVM_ACC_PROTECTED))
360 | (JVM_ACC_ABSTRACT | JVM_ACC_FINAL);
361 }
362
363 ModuleEntry* ObjArrayKlass::module() const {
364 assert(bottom_klass() != nullptr, "ObjArrayKlass returned unexpected null bottom_klass");
365 // The array is defined in the module of its bottom class
366 return bottom_klass()->module();
367 }
368
369 PackageEntry* ObjArrayKlass::package() const {
370 assert(bottom_klass() != nullptr, "ObjArrayKlass returned unexpected null bottom_klass");
371 return bottom_klass()->package();
372 }
373
374 // Printing
375
376 void ObjArrayKlass::print_on(outputStream* st) const {
377 #ifndef PRODUCT
378 Klass::print_on(st);
379 st->print(" - instance klass: ");
380 element_klass()->print_value_on(st);
381 st->cr();
382 #endif //PRODUCT
383 }
384
385 void ObjArrayKlass::print_value_on(outputStream* st) const {
386 assert(is_klass(), "must be klass");
387
388 element_klass()->print_value_on(st);
389 st->print("[]");
390 }
391
392 #ifndef PRODUCT
393
394 void ObjArrayKlass::oop_print_on(oop obj, outputStream* st) {
395 ArrayKlass::oop_print_on(obj, st);
396 assert(obj->is_objArray(), "must be objArray");
397 objArrayOop oa = objArrayOop(obj);
398 int print_len = MIN2(oa->length(), MaxElementPrintSize);
399 for(int index = 0; index < print_len; index++) {
421 st->print("[%d] ", len);
422 if (obj != nullptr) {
423 obj->print_address_on(st);
424 } else {
425 st->print_cr("null");
426 }
427 }
428
429 const char* ObjArrayKlass::internal_name() const {
430 return external_name();
431 }
432
433
434 // Verification
435
436 void ObjArrayKlass::verify_on(outputStream* st) {
437 ArrayKlass::verify_on(st);
438 guarantee(element_klass()->is_klass(), "should be klass");
439 guarantee(bottom_klass()->is_klass(), "should be klass");
440 Klass* bk = bottom_klass();
441 guarantee(bk->is_instance_klass() || bk->is_typeArray_klass(), "invalid bottom klass");
442 }
443
444 void ObjArrayKlass::oop_verify_on(oop obj, outputStream* st) {
445 ArrayKlass::oop_verify_on(obj, st);
446 guarantee(obj->is_objArray(), "must be objArray");
447 objArrayOop oa = objArrayOop(obj);
448 for(int index = 0; index < oa->length(); index++) {
449 guarantee(oopDesc::is_oop_or_null(oa->obj_at(index)), "should be oop");
450 }
451 }
|
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 #include "precompiled.hpp"
26 #include "classfile/moduleEntry.hpp"
27 #include "classfile/packageEntry.hpp"
28 #include "classfile/symbolTable.hpp"
29 #include "classfile/vmClasses.hpp"
30 #include "classfile/vmSymbols.hpp"
31 #include "gc/shared/collectedHeap.inline.hpp"
32 #include "memory/iterator.inline.hpp"
33 #include "memory/metadataFactory.hpp"
34 #include "memory/metaspaceClosure.hpp"
35 #include "memory/oopFactory.hpp"
36 #include "memory/resourceArea.hpp"
37 #include "memory/universe.hpp"
38 #include "oops/arrayKlass.hpp"
39 #include "oops/instanceKlass.hpp"
40 #include "oops/klass.inline.hpp"
41 #include "oops/objArrayKlass.inline.hpp"
42 #include "oops/objArrayOop.inline.hpp"
43 #include "oops/oop.inline.hpp"
44 #include "oops/symbol.hpp"
45 #include "runtime/handles.inline.hpp"
46 #include "runtime/mutexLocker.hpp"
47 #include "utilities/macros.hpp"
48
49 ObjArrayKlass* ObjArrayKlass::allocate(ClassLoaderData* loader_data, int n,
50 Klass* k, Symbol* name, bool null_free,
51 TRAPS) {
52 assert(ObjArrayKlass::header_size() <= InstanceKlass::header_size(),
53 "array klasses must be same size as InstanceKlass");
54
55 int size = ArrayKlass::static_size(ObjArrayKlass::header_size());
56
57 return new (loader_data, size, THREAD) ObjArrayKlass(n, k, name, null_free);
58 }
59
60 ObjArrayKlass* ObjArrayKlass::allocate_objArray_klass(ClassLoaderData* loader_data,
61 int n, Klass* element_klass,
62 bool null_free, TRAPS) {
63 assert(!null_free || (n == 1 && element_klass->is_inline_klass()), "null-free unsupported");
64
65 // Eagerly allocate the direct array supertype.
66 Klass* super_klass = nullptr;
67 if (!Universe::is_bootstrapping() || vmClasses::Object_klass_loaded()) {
68 Klass* element_super = element_klass->super();
69 if (element_super != nullptr) {
70 // The element type has a direct super. E.g., String[] has direct super of Object[].
71 if (null_free) {
72 super_klass = element_klass->array_klass_or_null();
73 } else {
74 super_klass = element_super->array_klass_or_null();
75 }
76 bool supers_exist = super_klass != nullptr;
77 // Also, see if the element has secondary supertypes.
78 // We need an array type for each.
79 const Array<Klass*>* element_supers = element_klass->secondary_supers();
80 for( int i = element_supers->length()-1; i >= 0; i-- ) {
81 Klass* elem_super = element_supers->at(i);
82 if (elem_super->array_klass_or_null() == nullptr) {
83 supers_exist = false;
84 break;
85 }
86 }
87 if (null_free) {
88 if (element_klass->array_klass_or_null() == nullptr) {
89 supers_exist = false;
90 }
91 }
92 if (!supers_exist) {
93 // Oops. Not allocated yet. Back out, allocate it, and retry.
94 Klass* ek = nullptr;
95 {
96 MutexUnlocker mu(MultiArray_lock);
97 if (null_free) {
98 element_klass->array_klass(CHECK_NULL);
99 } else {
100 element_super->array_klass(CHECK_NULL);
101 }
102 for( int i = element_supers->length()-1; i >= 0; i-- ) {
103 Klass* elem_super = element_supers->at(i);
104 elem_super->array_klass(CHECK_NULL);
105 }
106 // Now retry from the beginning
107 if (null_free) {
108 ek = InlineKlass::cast(element_klass)->value_array_klass(CHECK_NULL);
109 } else {
110 ek = element_klass->array_klass(n, CHECK_NULL);
111 }
112 } // re-lock
113 return ObjArrayKlass::cast(ek);
114 }
115 } else {
116 // The element type is already Object. Object[] has direct super of Object.
117 super_klass = vmClasses::Object_klass();
118 }
119 }
120
121 // Create type name for klass.
122 Symbol* name = ArrayKlass::create_element_klass_array_name(element_klass, CHECK_NULL);
123
124 // Initialize instance variables
125 ObjArrayKlass* oak = ObjArrayKlass::allocate(loader_data, n, element_klass, name, null_free, CHECK_NULL);
126
127 ModuleEntry* module = oak->module();
128 assert(module != nullptr, "No module entry for array");
129
130 // Call complete_create_array_klass after all instance variables has been initialized.
131 ArrayKlass::complete_create_array_klass(oak, super_klass, module, CHECK_NULL);
132
133 // Add all classes to our internal class loader list here,
134 // including classes in the bootstrap (null) class loader.
135 // Do this step after creating the mirror so that if the
136 // mirror creation fails, loaded_classes_do() doesn't find
137 // an array class without a mirror.
138 loader_data->add_class(oak);
139
140 return oak;
141 }
142
143 ObjArrayKlass::ObjArrayKlass(int n, Klass* element_klass, Symbol* name, bool null_free) : ArrayKlass(name, Kind) {
144 set_dimension(n);
145 set_element_klass(element_klass);
146
147 Klass* bk;
148 if (element_klass->is_objArray_klass()) {
149 bk = ObjArrayKlass::cast(element_klass)->bottom_klass();
150 } else if (element_klass->is_flatArray_klass()) {
151 bk = FlatArrayKlass::cast(element_klass)->element_klass();
152 } else {
153 bk = element_klass;
154 }
155 assert(bk != nullptr && (bk->is_instance_klass() || bk->is_typeArray_klass()), "invalid bottom klass");
156 set_bottom_klass(bk);
157 set_class_loader_data(bk->class_loader_data());
158
159 int lh = array_layout_helper(T_OBJECT);
160 if (null_free) {
161 assert(n == 1, "Bytecode does not support null-free multi-dim");
162 lh = layout_helper_set_null_free(lh);
163 #ifdef _LP64
164 set_prototype_header(markWord::null_free_array_prototype());
165 assert(prototype_header().is_null_free_array(), "sanity");
166 #else
167 set_prototype_header(markWord::inline_type_prototype());
168 #endif
169 }
170 set_layout_helper(lh);
171 assert(is_array_klass(), "sanity");
172 assert(is_objArray_klass(), "sanity");
173 }
174
175 size_t ObjArrayKlass::oop_size(oop obj) const {
176 assert(obj->is_objArray(), "must be object array");
177 return objArrayOop(obj)->object_size();
178 }
179
180 objArrayOop ObjArrayKlass::allocate(int length, TRAPS) {
181 check_array_allocation_length(length, arrayOopDesc::max_array_length(T_OBJECT), CHECK_NULL);
182 size_t size = objArrayOopDesc::object_size(length);
183 bool populate_null_free = is_null_free_array_klass();
184 objArrayOop array = (objArrayOop)Universe::heap()->array_allocate(this, size, length,
185 /* do_zero */ true, CHECK_NULL);
186 objArrayHandle array_h(THREAD, array);
187 if (populate_null_free) {
188 assert(dimension() == 1, "Can only populate the final dimension");
189 assert(element_klass()->is_inline_klass(), "Unexpected");
190 assert(!element_klass()->is_array_klass(), "ArrayKlass unexpected here");
191 assert(!InlineKlass::cast(element_klass())->flat_array(), "Expected flatArrayOop allocation");
192 element_klass()->initialize(CHECK_NULL);
193 // Populate default values...
194 instanceOop value = (instanceOop) InlineKlass::cast(element_klass())->default_value();
195 for (int i = 0; i < length; i++) {
196 array_h->obj_at_put(i, value);
197 }
198 }
199 return array_h();
200 }
201
202 oop ObjArrayKlass::multi_allocate(int rank, jint* sizes, TRAPS) {
203 int length = *sizes;
204 ArrayKlass* ld_klass = lower_dimension();
205 // If length < 0 allocate will throw an exception.
206 objArrayOop array = allocate(length, CHECK_NULL);
207 objArrayHandle h_array (THREAD, array);
208 if (rank > 1) {
209 if (length != 0) {
210 for (int index = 0; index < length; index++) {
211 oop sub_array = ld_klass->multi_allocate(rank-1, &sizes[1], CHECK_NULL);
212 h_array->obj_at_put(index, sub_array);
213 }
214 } else {
215 // Since this array dimension has zero length, nothing will be
216 // allocated, however the lower dimension values must be checked
217 // for illegal values.
218 for (int i = 0; i < rank - 1; ++i) {
219 sizes += 1;
220 if (*sizes < 0) {
221 THROW_MSG_0(vmSymbols::java_lang_NegativeArraySizeException(), err_msg("%d", *sizes));
222 }
223 }
224 }
225 }
226 return h_array();
227 }
228
229 // Either oop or narrowOop depending on UseCompressedOops.
230 void ObjArrayKlass::do_copy(arrayOop s, size_t src_offset,
231 arrayOop d, size_t dst_offset, int length, TRAPS) {
232 if (s == d) {
233 // since source and destination are equal we do not need conversion checks.
234 assert(length > 0, "sanity check");
235 ArrayAccess<>::oop_arraycopy(s, src_offset, d, dst_offset, length);
236 } else {
237 // We have to make sure all elements conform to the destination array
238 Klass* bound = ObjArrayKlass::cast(d->klass())->element_klass();
239 Klass* stype = ObjArrayKlass::cast(s->klass())->element_klass();
240 // Perform null check if dst is null-free but src has no such guarantee
241 bool null_check = ((!s->klass()->is_null_free_array_klass()) &&
242 d->klass()->is_null_free_array_klass());
243 if (stype == bound || stype->is_subtype_of(bound)) {
244 if (null_check) {
245 ArrayAccess<ARRAYCOPY_DISJOINT | ARRAYCOPY_NOTNULL>::oop_arraycopy(s, src_offset, d, dst_offset, length);
246 } else {
247 ArrayAccess<ARRAYCOPY_DISJOINT>::oop_arraycopy(s, src_offset, d, dst_offset, length);
248 }
249 } else {
250 if (null_check) {
251 ArrayAccess<ARRAYCOPY_DISJOINT | ARRAYCOPY_CHECKCAST | ARRAYCOPY_NOTNULL>::oop_arraycopy(s, src_offset, d, dst_offset, length);
252 } else {
253 ArrayAccess<ARRAYCOPY_DISJOINT | ARRAYCOPY_CHECKCAST>::oop_arraycopy(s, src_offset, d, dst_offset, length);
254 }
255 }
256 }
257 }
258
259 void ObjArrayKlass::copy_array(arrayOop s, int src_pos, arrayOop d,
260 int dst_pos, int length, TRAPS) {
261 assert(s->is_objArray(), "must be obj array");
262
263 if (UseFlatArray) {
264 if (d->is_flatArray()) {
265 FlatArrayKlass::cast(d->klass())->copy_array(s, src_pos, d, dst_pos, length, THREAD);
266 return;
267 }
268 }
269
270 if (!d->is_objArray()) {
271 ResourceMark rm(THREAD);
272 stringStream ss;
273 if (d->is_typeArray()) {
274 ss.print("arraycopy: type mismatch: can not copy object array[] into %s[]",
275 type2name_tab[ArrayKlass::cast(d->klass())->element_type()]);
276 } else {
277 ss.print("arraycopy: destination type %s is not an array", d->klass()->external_name());
278 }
279 THROW_MSG(vmSymbols::java_lang_ArrayStoreException(), ss.as_string());
280 }
281
282 // Check is all offsets and lengths are non negative
283 if (src_pos < 0 || dst_pos < 0 || length < 0) {
284 // Pass specific exception reason.
285 ResourceMark rm(THREAD);
286 stringStream ss;
287 if (src_pos < 0) {
288 ss.print("arraycopy: source index %d out of bounds for object array[%d]",
289 src_pos, s->length());
392 return (element_flags & (JVM_ACC_PUBLIC | JVM_ACC_PRIVATE | JVM_ACC_PROTECTED))
393 | (JVM_ACC_ABSTRACT | JVM_ACC_FINAL);
394 }
395
396 ModuleEntry* ObjArrayKlass::module() const {
397 assert(bottom_klass() != nullptr, "ObjArrayKlass returned unexpected null bottom_klass");
398 // The array is defined in the module of its bottom class
399 return bottom_klass()->module();
400 }
401
402 PackageEntry* ObjArrayKlass::package() const {
403 assert(bottom_klass() != nullptr, "ObjArrayKlass returned unexpected null bottom_klass");
404 return bottom_klass()->package();
405 }
406
407 // Printing
408
409 void ObjArrayKlass::print_on(outputStream* st) const {
410 #ifndef PRODUCT
411 Klass::print_on(st);
412 st->print(" - element klass: ");
413 element_klass()->print_value_on(st);
414 st->cr();
415 #endif //PRODUCT
416 }
417
418 void ObjArrayKlass::print_value_on(outputStream* st) const {
419 assert(is_klass(), "must be klass");
420
421 element_klass()->print_value_on(st);
422 st->print("[]");
423 }
424
425 #ifndef PRODUCT
426
427 void ObjArrayKlass::oop_print_on(oop obj, outputStream* st) {
428 ArrayKlass::oop_print_on(obj, st);
429 assert(obj->is_objArray(), "must be objArray");
430 objArrayOop oa = objArrayOop(obj);
431 int print_len = MIN2(oa->length(), MaxElementPrintSize);
432 for(int index = 0; index < print_len; index++) {
454 st->print("[%d] ", len);
455 if (obj != nullptr) {
456 obj->print_address_on(st);
457 } else {
458 st->print_cr("null");
459 }
460 }
461
462 const char* ObjArrayKlass::internal_name() const {
463 return external_name();
464 }
465
466
467 // Verification
468
469 void ObjArrayKlass::verify_on(outputStream* st) {
470 ArrayKlass::verify_on(st);
471 guarantee(element_klass()->is_klass(), "should be klass");
472 guarantee(bottom_klass()->is_klass(), "should be klass");
473 Klass* bk = bottom_klass();
474 guarantee(bk->is_instance_klass() || bk->is_typeArray_klass() || bk->is_flatArray_klass(),
475 "invalid bottom klass");
476 }
477
478 void ObjArrayKlass::oop_verify_on(oop obj, outputStream* st) {
479 ArrayKlass::oop_verify_on(obj, st);
480 guarantee(obj->is_objArray(), "must be objArray");
481 guarantee(obj->is_null_free_array() || (!is_null_free_array_klass()), "null-free klass but not object");
482 objArrayOop oa = objArrayOop(obj);
483 for(int index = 0; index < oa->length(); index++) {
484 guarantee(oopDesc::is_oop_or_null(oa->obj_at(index)), "should be oop");
485 }
486 }
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