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8197901: Crash during GC when logging level is debug

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Reviewed-by: dholmes, coleenp
This commit is contained in:
Leonid Mesnik 2018-02-23 13:55:49 -08:00 • committed by Leonid Mesnik
parent 03c754baa0
commit 2471caab08
3 changed files with 20 additions and 25 deletions
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24
src/hotspot/share/oops/klass.cpp
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@ -577,21 +577,15 @@ const char* Klass::external_name() const {
if (is_instance_klass()) {
const InstanceKlass* ik = static_cast<const InstanceKlass*>(this);
if (ik->is_anonymous()) {
intptr_t hash = 0;
if (ik->java_mirror() != NULL) {
// java_mirror might not be created yet, return 0 as hash.
hash = ik->java_mirror()->identity_hash();
}
char hash_buf[40];
sprintf(hash_buf, "/" UINTX_FORMAT, (uintx)hash);
size_t hash_len = strlen(hash_buf);
size_t result_len = name()->utf8_length();
char* result = NEW_RESOURCE_ARRAY(char, result_len + hash_len + 1);
name()->as_klass_external_name(result, (int) result_len + 1);
assert(strlen(result) == result_len, "");
strcpy(result + result_len, hash_buf);
assert(strlen(result) == result_len + hash_len, "");
char addr_buf[20];
jio_snprintf(addr_buf, 20, "/" INTPTR_FORMAT, p2i(ik));
size_t addr_len = strlen(addr_buf);
size_t name_len = name()->utf8_length();
char* result = NEW_RESOURCE_ARRAY(char, name_len + addr_len + 1);
name()->as_klass_external_name(result, (int) name_len + 1);
assert(strlen(result) == name_len, "");
strcpy(result + name_len, addr_buf);
assert(strlen(result) == name_len + addr_len, "");
return result;
}
}