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8059677: Thread.getName() instantiates Strings

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Reviewed-by: coleenp, dholmes, sla
This commit is contained in:
Aleksey Shipilev 2014-11-13 01:57:09 +03:00
parent 0bad624124
commit f8712e7800
6 changed files with 17 additions and 22 deletions
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11
hotspot/src/share/vm/classfile/javaClasses.cpp
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@ -944,7 +944,7 @@ void java_lang_Thread::compute_offsets() {
assert(_group_offset == 0, "offsets should be initialized only once");
Klass* k = SystemDictionary::Thread_klass();
compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::char_array_signature());
compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature());
compute_offset(_group_offset, k, vmSymbols::group_name(), vmSymbols::threadgroup_signature());
compute_offset(_contextClassLoader_offset, k, vmSymbols::contextClassLoader_name(), vmSymbols::classloader_signature());
compute_offset(_inheritedAccessControlContext_offset, k, vmSymbols::inheritedAccessControlContext_name(), vmSymbols::accesscontrolcontext_signature());
@ -974,15 +974,12 @@ void java_lang_Thread::set_thread(oop java_thread, JavaThread* thread) {
}
typeArrayOop java_lang_Thread::name(oop java_thread) {
oop name = java_thread->obj_field(_name_offset);
assert(name == NULL || (name->is_typeArray() && TypeArrayKlass::cast(name->klass())->element_type() == T_CHAR), "just checking");
return typeArrayOop(name);
oop java_lang_Thread::name(oop java_thread) {
return java_thread->obj_field(_name_offset);
}
void java_lang_Thread::set_name(oop java_thread, typeArrayOop name) {
assert(java_thread->obj_field(_name_offset) == NULL, "name should be NULL");
void java_lang_Thread::set_name(oop java_thread, oop name) {
java_thread->obj_field_put(_name_offset, name);
}