1449 if (cached_class_data != NULL) {
1450 os::free(cached_class_data);
1451 ik->set_cached_class_file(NULL);
1452 }
1453 return true;
1454 }
1455
1456 static InstanceKlass* create_new_instance_klass(InstanceKlass* ik, ClassFileStream* stream, TRAPS) {
1457 assert(stream != NULL, "invariant");
1458 ResourceMark rm(THREAD);
1459 ClassLoaderData* const cld = ik->class_loader_data();
1460 Handle pd(THREAD, ik->protection_domain());
1461 Symbol* const class_name = ik->name();
1462 const char* const klass_name = class_name != NULL ? class_name->as_C_string() : "";
1463 ClassFileParser new_parser(stream,
1464 class_name,
1465 cld,
1466 pd,
1467 NULL, // host klass
1468 NULL, // cp_patches
1469 ClassFileParser::INTERNAL, // internal visibility
1470 THREAD);
1471 if (HAS_PENDING_EXCEPTION) {
1472 log_pending_exception(PENDING_EXCEPTION);
1473 CLEAR_PENDING_EXCEPTION;
1474 return NULL;
1475 }
1476 InstanceKlass* const new_ik = new_parser.create_instance_klass(false, THREAD);
1477 if (HAS_PENDING_EXCEPTION) {
1478 log_pending_exception(PENDING_EXCEPTION);
1479 CLEAR_PENDING_EXCEPTION;
1480 return NULL;
1481 }
1482 assert(new_ik != NULL, "invariant");
1483 assert(new_ik->name() != NULL, "invariant");
1484 assert(strncmp(ik->name()->as_C_string(), new_ik->name()->as_C_string(), strlen(ik->name()->as_C_string())) == 0, "invariant");
1485 return cache_bytes(ik, stream, new_ik, THREAD) ? new_ik : NULL;
1486 }
1487
1488 static void rewrite_klass_pointer(InstanceKlass*& ik, InstanceKlass* new_ik, ClassFileParser& parser, TRAPS) {
1489 assert(ik != NULL, "invariant");
1490 assert(new_ik != NULL, "invariant");
1491 assert(new_ik->name() != NULL, "invariant");
1492 assert(JdkJfrEvent::is(new_ik) || JdkJfrEvent::is_subklass(new_ik), "invariant");
1493 assert(!HAS_PENDING_EXCEPTION, "invariant");
1494 // assign original InstanceKlass* back onto "its" parser object for proper destruction
1495 parser.set_klass_to_deallocate(ik);
1496 // now rewrite original pointer to newly created InstanceKlass
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1449 if (cached_class_data != NULL) {
1450 os::free(cached_class_data);
1451 ik->set_cached_class_file(NULL);
1452 }
1453 return true;
1454 }
1455
1456 static InstanceKlass* create_new_instance_klass(InstanceKlass* ik, ClassFileStream* stream, TRAPS) {
1457 assert(stream != NULL, "invariant");
1458 ResourceMark rm(THREAD);
1459 ClassLoaderData* const cld = ik->class_loader_data();
1460 Handle pd(THREAD, ik->protection_domain());
1461 Symbol* const class_name = ik->name();
1462 const char* const klass_name = class_name != NULL ? class_name->as_C_string() : "";
1463 ClassFileParser new_parser(stream,
1464 class_name,
1465 cld,
1466 pd,
1467 NULL, // host klass
1468 NULL, // cp_patches
1469 false, // is_hidden
1470 false, // can_access_vm_annotations
1471 ClassFileParser::INTERNAL, // internal visibility
1472 THREAD);
1473 if (HAS_PENDING_EXCEPTION) {
1474 log_pending_exception(PENDING_EXCEPTION);
1475 CLEAR_PENDING_EXCEPTION;
1476 return NULL;
1477 }
1478 ClassInstanceInfo cl_inst_info;
1479 InstanceKlass* const new_ik = new_parser.create_instance_klass(false, cl_inst_info, THREAD);
1480 if (HAS_PENDING_EXCEPTION) {
1481 log_pending_exception(PENDING_EXCEPTION);
1482 CLEAR_PENDING_EXCEPTION;
1483 return NULL;
1484 }
1485 assert(new_ik != NULL, "invariant");
1486 assert(new_ik->name() != NULL, "invariant");
1487 assert(strncmp(ik->name()->as_C_string(), new_ik->name()->as_C_string(), strlen(ik->name()->as_C_string())) == 0, "invariant");
1488 return cache_bytes(ik, stream, new_ik, THREAD) ? new_ik : NULL;
1489 }
1490
1491 static void rewrite_klass_pointer(InstanceKlass*& ik, InstanceKlass* new_ik, ClassFileParser& parser, TRAPS) {
1492 assert(ik != NULL, "invariant");
1493 assert(new_ik != NULL, "invariant");
1494 assert(new_ik->name() != NULL, "invariant");
1495 assert(JdkJfrEvent::is(new_ik) || JdkJfrEvent::is_subklass(new_ik), "invariant");
1496 assert(!HAS_PENDING_EXCEPTION, "invariant");
1497 // assign original InstanceKlass* back onto "its" parser object for proper destruction
1498 parser.set_klass_to_deallocate(ik);
1499 // now rewrite original pointer to newly created InstanceKlass
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