< prev index next > src/hotspot/share/runtime/reflection.cpp
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#include "jvm.h"
#include "logging/log.hpp"
#include "memory/oopFactory.hpp"
#include "memory/resourceArea.hpp"
#include "memory/universe.hpp"
+ #include "oops/inlineKlass.inline.hpp"
#include "oops/instanceKlass.inline.hpp"
#include "oops/klass.inline.hpp"
#include "oops/objArrayKlass.hpp"
#include "oops/objArrayOop.inline.hpp"
#include "oops/oop.inline.hpp"
#include "runtime/reflection.hpp"
#include "runtime/reflectionUtils.hpp"
#include "runtime/signature.hpp"
#include "runtime/vframe.inline.hpp"
#include "utilities/formatBuffer.hpp"
+ #include "utilities/globalDefinitions.hpp"
static void trace_class_resolution(oop mirror) {
if (mirror == nullptr || java_lang_Class::is_primitive(mirror)) {
return;
}
} else {
Klass* k = java_lang_Class::as_Klass(element_mirror);
if (k->is_array_klass() && ArrayKlass::cast(k)->dimension() >= MAX_DIM) {
THROW_0(vmSymbols::java_lang_IllegalArgumentException());
}
! return oopFactory::new_objArray(k, length, THREAD);
}
}
arrayOop Reflection::reflect_new_multi_array(oop element_mirror, typeArrayOop dim_array, TRAPS) {
} else {
Klass* k = java_lang_Class::as_Klass(element_mirror);
if (k->is_array_klass() && ArrayKlass::cast(k)->dimension() >= MAX_DIM) {
THROW_0(vmSymbols::java_lang_IllegalArgumentException());
}
! if (k->is_inline_klass() && java_lang_Class::is_secondary_mirror(element_mirror)) {
+ return oopFactory::new_valueArray(k, length, THREAD);
+ } else {
+ return oopFactory::new_objArray(k, length, THREAD);
+ }
}
}
arrayOop Reflection::reflect_new_multi_array(oop element_mirror, typeArrayOop dim_array, TRAPS) {
THROW_0(vmSymbols::java_lang_IllegalArgumentException());
}
dim += k_dim;
}
}
! klass = klass->array_klass(dim, CHECK_NULL);
oop obj = ArrayKlass::cast(klass)->multi_allocate(len, dimensions, CHECK_NULL);
assert(obj->is_array(), "just checking");
return arrayOop(obj);
}
THROW_0(vmSymbols::java_lang_IllegalArgumentException());
}
dim += k_dim;
}
}
! if (klass->is_inline_klass() && java_lang_Class::is_secondary_mirror(element_mirror)) {
+ klass = InlineKlass::cast(klass)->value_array_klass(dim, CHECK_NULL);
+ } else {
+ klass = klass->array_klass(dim, CHECK_NULL);
+ }
oop obj = ArrayKlass::cast(klass)->multi_allocate(len, dimensions, CHECK_NULL);
assert(obj->is_array(), "just checking");
return arrayOop(obj);
}
}
static Handle new_type(Symbol* signature, Klass* k, TRAPS) {
ResolvingSignatureStream ss(signature, k, false);
oop nt = ss.as_java_mirror(SignatureStream::NCDFError, CHECK_NH);
- if (log_is_enabled(Debug, class, resolve)) {
- trace_class_resolution(nt);
- }
return Handle(THREAD, nt);
}
oop Reflection::new_method(const methodHandle& method, bool for_constant_pool_access, TRAPS) {
// Allow sun.reflect.ConstantPool to refer to <clinit> methods as java.lang.reflect.Methods.
! assert(!method()->is_initializer() ||
- (for_constant_pool_access && method()->is_static()),
"should call new_constructor instead");
InstanceKlass* holder = method->method_holder();
int slot = method->method_idnum();
Symbol* signature = method->signature();
}
static Handle new_type(Symbol* signature, Klass* k, TRAPS) {
ResolvingSignatureStream ss(signature, k, false);
oop nt = ss.as_java_mirror(SignatureStream::NCDFError, CHECK_NH);
return Handle(THREAD, nt);
}
oop Reflection::new_method(const methodHandle& method, bool for_constant_pool_access, TRAPS) {
// Allow sun.reflect.ConstantPool to refer to <clinit> methods as java.lang.reflect.Methods.
! assert(!method()->name()->starts_with('<') || for_constant_pool_access,
"should call new_constructor instead");
InstanceKlass* holder = method->method_holder();
int slot = method->method_idnum();
Symbol* signature = method->signature();
return mh();
}
oop Reflection::new_constructor(const methodHandle& method, TRAPS) {
! assert(method()->is_initializer(), "should call new_method instead");
InstanceKlass* holder = method->method_holder();
int slot = method->method_idnum();
Symbol* signature = method->signature();
return mh();
}
oop Reflection::new_constructor(const methodHandle& method, TRAPS) {
! assert(method()->is_object_constructor() ||
+ method()->is_static_vnew_factory(),
+ "should call new_method instead");
InstanceKlass* holder = method->method_holder();
int slot = method->method_idnum();
Symbol* signature = method->signature();
java_lang_reflect_Field::set_type(rh(), type());
if (fd->is_trusted_final()) {
java_lang_reflect_Field::set_trusted_final(rh());
}
// Note the ACC_ANNOTATION bit, which is a per-class access flag, is never set here.
! java_lang_reflect_Field::set_modifiers(rh(), fd->access_flags().as_int() & JVM_RECOGNIZED_FIELD_MODIFIERS);
java_lang_reflect_Field::set_override(rh(), false);
if (fd->has_generic_signature()) {
Symbol* gs = fd->generic_signature();
Handle sig = java_lang_String::create_from_symbol(gs, CHECK_NULL);
java_lang_reflect_Field::set_signature(rh(), sig());
java_lang_reflect_Field::set_type(rh(), type());
if (fd->is_trusted_final()) {
java_lang_reflect_Field::set_trusted_final(rh());
}
// Note the ACC_ANNOTATION bit, which is a per-class access flag, is never set here.
! int modifiers = fd->access_flags().as_int() & JVM_RECOGNIZED_FIELD_MODIFIERS;
+ java_lang_reflect_Field::set_modifiers(rh(), modifiers);
java_lang_reflect_Field::set_override(rh(), false);
if (fd->has_generic_signature()) {
Symbol* gs = fd->generic_signature();
Handle sig = java_lang_String::create_from_symbol(gs, CHECK_NULL);
java_lang_reflect_Field::set_signature(rh(), sig());
if (!receiver->is_a(klass)) {
THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "object is not an instance of declaring class");
}
// target klass is receiver's klass
target_klass = receiver->klass();
! // no need to resolve if method is private or <init>
! if (reflected_method->is_private() || reflected_method->name() == vmSymbols::object_initializer_name()) {
method = reflected_method;
} else {
// resolve based on the receiver
if (reflected_method->method_holder()->is_interface()) {
// resolve interface call
if (!receiver->is_a(klass)) {
THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "object is not an instance of declaring class");
}
// target klass is receiver's klass
target_klass = receiver->klass();
! // no need to resolve if method is private, <init> or <vnew>
! if (reflected_method->is_private() ||
+ reflected_method->name() == vmSymbols::object_initializer_name() ||
+ reflected_method->name() == vmSymbols::inline_factory_name()) {
method = reflected_method;
} else {
// resolve based on the receiver
if (reflected_method->method_holder()->is_interface()) {
// resolve interface call
oop return_type_mirror = java_lang_reflect_Method::return_type(method_mirror);
BasicType rtype;
if (java_lang_Class::is_primitive(return_type_mirror)) {
rtype = basic_type_mirror_to_basic_type(return_type_mirror);
+ } else if (java_lang_Class::as_Klass(return_type_mirror)->is_inline_klass()) {
+ rtype = java_lang_Class::is_primary_mirror(return_type_mirror) ? T_OBJECT : T_PRIMITIVE_OBJECT;
} else {
rtype = T_OBJECT;
}
InstanceKlass* klass = InstanceKlass::cast(java_lang_Class::as_Klass(mirror));
Method* m = klass->method_with_idnum(slot);
if (m == nullptr) {
THROW_MSG_0(vmSymbols::java_lang_InternalError(), "invoke");
}
methodHandle method(THREAD, m);
- assert(method->name() == vmSymbols::object_initializer_name(), "invalid constructor");
// Make sure klass gets initialize
klass->initialize(CHECK_NULL);
// Create new instance (the receiver)
klass->check_valid_for_instantiation(false, CHECK_NULL);
Handle receiver = klass->allocate_instance_handle(CHECK_NULL);
// Ignore result from call and return receiver
invoke(klass, method, receiver, override, ptypes, T_VOID, args, false, CHECK_NULL);
return receiver();
Method* m = klass->method_with_idnum(slot);
if (m == nullptr) {
THROW_MSG_0(vmSymbols::java_lang_InternalError(), "invoke");
}
methodHandle method(THREAD, m);
// Make sure klass gets initialize
klass->initialize(CHECK_NULL);
// Create new instance (the receiver)
klass->check_valid_for_instantiation(false, CHECK_NULL);
+
+ // Special case for factory methods
+ if (!method->signature()->is_void_method_signature()) {
+ assert(klass->is_inline_klass(), "inline classes must use factory methods");
+ assert(method->name() == vmSymbols::inline_factory_name(), "wrong factory method name");
+ Handle no_receiver; // null instead of receiver
+ BasicType rtype;
+ if (klass->is_hidden()) {
+ rtype = T_OBJECT;
+ } else {
+ rtype = T_PRIMITIVE_OBJECT;
+ }
+ return invoke(klass, method, no_receiver, override, ptypes, rtype, args, false, CHECK_NULL);
+ }
+
+ // main branch of code creates a non-inline object:
+ assert(!klass->is_inline_klass(), "classic constructors are only for non-inline classes");
+ assert(method->name() == vmSymbols::object_initializer_name(), "wrong constructor name");
Handle receiver = klass->allocate_instance_handle(CHECK_NULL);
// Ignore result from call and return receiver
invoke(klass, method, receiver, override, ptypes, T_VOID, args, false, CHECK_NULL);
return receiver();
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