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8202631: JVM_Clone to throw CloneNotSupportException for Reference object

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JVM_Clone throws; delete previous partial support for cloning.

Reviewed-by: eosterlund, mchung, dholmes, coleenp
This commit is contained in:
Kim Barrett 2018-05-08 20:59:58 -04:00
parent f899fb1841
commit 65abdefedf
7 changed files with 5 additions and 101 deletions
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31
src/hotspot/share/classfile/javaClasses.cpp
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@ -3556,34 +3556,6 @@ void java_lang_ref_SoftReference::set_clock(jlong value) {
base->long_field_put(static_clock_offset, value);
}
// Support for java_lang_ref_ReferenceQueue
oop java_lang_ref_ReferenceQueue::NULL_queue() {
InstanceKlass* ik = SystemDictionary::ReferenceQueue_klass();
oop mirror = ik->java_mirror();
return mirror->obj_field(static_NULL_queue_offset);
}
oop java_lang_ref_ReferenceQueue::ENQUEUED_queue() {
InstanceKlass* ik = SystemDictionary::ReferenceQueue_klass();
oop mirror = ik->java_mirror();
return mirror->obj_field(static_ENQUEUED_queue_offset);
}
void java_lang_ref_ReferenceQueue::compute_offsets() {
InstanceKlass* k = SystemDictionary::ReferenceQueue_klass();
compute_offset(static_NULL_queue_offset,
k,
vmSymbols::referencequeue_null_name(),
vmSymbols::referencequeue_signature(),
true /* is_static */);
compute_offset(static_ENQUEUED_queue_offset,
k,
vmSymbols::referencequeue_enqueued_name(),
vmSymbols::referencequeue_signature(),
true /* is_static */);
}
// Support for java_lang_invoke_DirectMethodHandle
int java_lang_invoke_DirectMethodHandle::_member_offset;
@ -4263,8 +4235,6 @@ int java_lang_ref_Reference::referent_offset;
int java_lang_ref_Reference::queue_offset;
int java_lang_ref_Reference::next_offset;
int java_lang_ref_Reference::discovered_offset;
int java_lang_ref_ReferenceQueue::static_NULL_queue_offset;
int java_lang_ref_ReferenceQueue::static_ENQUEUED_queue_offset;
int java_lang_ref_SoftReference::timestamp_offset;
int java_lang_ref_SoftReference::static_clock_offset;
int java_lang_ClassLoader::parent_offset;
@ -4509,7 +4479,6 @@ void JavaClasses::compute_offsets() {
java_lang_StackTraceElement::compute_offsets();
java_lang_StackFrameInfo::compute_offsets();
java_lang_LiveStackFrameInfo::compute_offsets();
java_lang_ref_ReferenceQueue::compute_offsets();
// generated interpreter code wants to know about the offsets we just computed:
AbstractAssembler::update_delayed_values();