234 } else {
235 // slow case: need individual subtype checks
236 // note: don't use obj_at_put below because it includes a redundant store check
237 if (!HeapAccess<ARRAYCOPY_DISJOINT | ARRAYCOPY_CHECKCAST>::oop_arraycopy(s, d, src, dst, length)) {
238 THROW(vmSymbols::java_lang_ArrayStoreException());
239 }
240 }
241 }
242 }
243
244 void ObjArrayKlass::copy_array(arrayOop s, int src_pos, arrayOop d,
245 int dst_pos, int length, TRAPS) {
246 assert(s->is_objArray(), "must be obj array");
247
248 if (!d->is_objArray()) {
249 THROW(vmSymbols::java_lang_ArrayStoreException());
250 }
251
252 // Check is all offsets and lengths are non negative
253 if (src_pos < 0 || dst_pos < 0 || length < 0) {
254 THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException());
255 }
256 // Check if the ranges are valid
257 if ( (((unsigned int) length + (unsigned int) src_pos) > (unsigned int) s->length())
258 || (((unsigned int) length + (unsigned int) dst_pos) > (unsigned int) d->length()) ) {
259 THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException());
260 }
261
262 // Special case. Boundary cases must be checked first
263 // This allows the following call: copy_array(s, s.length(), d.length(), 0).
264 // This is correct, since the position is supposed to be an 'in between point', i.e., s.length(),
265 // points to the right of the last element.
266 if (length==0) {
267 return;
268 }
269 if (UseCompressedOops) {
270 narrowOop* const src = objArrayOop(s)->obj_at_addr<narrowOop>(src_pos);
271 narrowOop* const dst = objArrayOop(d)->obj_at_addr<narrowOop>(dst_pos);
272 do_copy<narrowOop>(s, src, d, dst, length, CHECK);
273 } else {
274 oop* const src = objArrayOop(s)->obj_at_addr<oop>(src_pos);
275 oop* const dst = objArrayOop(d)->obj_at_addr<oop>(dst_pos);
276 do_copy<oop> (s, src, d, dst, length, CHECK);
277 }
278 }
279
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234 } else {
235 // slow case: need individual subtype checks
236 // note: don't use obj_at_put below because it includes a redundant store check
237 if (!HeapAccess<ARRAYCOPY_DISJOINT | ARRAYCOPY_CHECKCAST>::oop_arraycopy(s, d, src, dst, length)) {
238 THROW(vmSymbols::java_lang_ArrayStoreException());
239 }
240 }
241 }
242 }
243
244 void ObjArrayKlass::copy_array(arrayOop s, int src_pos, arrayOop d,
245 int dst_pos, int length, TRAPS) {
246 assert(s->is_objArray(), "must be obj array");
247
248 if (!d->is_objArray()) {
249 THROW(vmSymbols::java_lang_ArrayStoreException());
250 }
251
252 // Check is all offsets and lengths are non negative
253 if (src_pos < 0 || dst_pos < 0 || length < 0) {
254 // Pass specific exception reason.
255 ResourceMark rm;
256 stringStream ss;
257 if (src_pos < 0) {
258 ss.print("arraycopy source index %i out of bounds for object array[%i].",
259 src_pos, s->length());
260 } else if (dst_pos < 0) {
261 ss.print("arraycopy destination index %i out of bounds for object array[%i].",
262 dst_pos, d->length());
263 } else {
264 ss.print("arraycopy length %i is negative.", length);
265 }
266 THROW_MSG(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), ss.as_string());
267 }
268 // Check if the ranges are valid
269 if ((((unsigned int) length + (unsigned int) src_pos) > (unsigned int) s->length()) ||
270 (((unsigned int) length + (unsigned int) dst_pos) > (unsigned int) d->length())) {
271 // Pass specific exception reason.
272 ResourceMark rm;
273 stringStream ss;
274 if (((unsigned int) length + (unsigned int) src_pos) > (unsigned int) s->length()) {
275 ss.print("arraycopy: last source index %u out of bounds for object array[%i].",
276 (unsigned int) length + (unsigned int) src_pos, s->length());
277 } else {
278 ss.print("arraycopy: last destination index %u out of bounds for object array[%i].",
279 (unsigned int) length + (unsigned int) dst_pos, d->length());
280 }
281 THROW_MSG(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), ss.as_string());
282 }
283
284 // Special case. Boundary cases must be checked first
285 // This allows the following call: copy_array(s, s.length(), d.length(), 0).
286 // This is correct, since the position is supposed to be an 'in between point', i.e., s.length(),
287 // points to the right of the last element.
288 if (length==0) {
289 return;
290 }
291 if (UseCompressedOops) {
292 narrowOop* const src = objArrayOop(s)->obj_at_addr<narrowOop>(src_pos);
293 narrowOop* const dst = objArrayOop(d)->obj_at_addr<narrowOop>(dst_pos);
294 do_copy<narrowOop>(s, src, d, dst, length, CHECK);
295 } else {
296 oop* const src = objArrayOop(s)->obj_at_addr<oop>(src_pos);
297 oop* const dst = objArrayOop(d)->obj_at_addr<oop>(dst_pos);
298 do_copy<oop> (s, src, d, dst, length, CHECK);
299 }
300 }
301
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