Bug ID: JDK-8315810 Reimplement sun.reflect.ReflectionFactory::newConstructorForSerialization with method handles

JDK-8315810 : Reimplement sun.reflect.ReflectionFactory::newConstructorForSerialization with method handles

Type: Enhancement
Component: core-libs
Sub-Component: java.lang:reflect
Affected Version: 22

Priority: P3
Status: Resolved
Resolution: Fixed

Submitted: 2023-09-06
Updated: 2024-05-23
Resolved: 2023-09-14

Versions (Unresolved/Resolved/Fixed)

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JDK 22
22 b16Fixed

Related Reports

Blocks :	JDK-8242888 - Convert dynamic proxy to hidden classes
CSR :	JDK-8315811 - Reimplement sun.reflect.ReflectionFactory::newConstructorForSerialization with method handles
Duplicate :	JDK-8307575 - Migrate the serialization constructor accessors to Method Handles
Relates :	JDK-8305104 - Remove the old core reflection implementation
Relates :	JDK-8327624 - Remove VM implementation that bypass verification for core reflection

Sub Tasks

JDK-8317113 :

Release Note: Reimplement `sun.reflect.ReflectionFactory::newConstructorForSerialization` with Method Handles - Resolved

Description

sun.reflect.ReflectionFactory::newConstructorForSerialization is JDK unsupported API used by 3rd party serialization framework.

This API currently generates the bytecode which fails the verification because `new C; invokespecial A()` where the given class `C` and invoke a no-arg constructor of `C`'s first non-`Serializable` superclass `A` is not a valid operation per the VM specification.    VM special cases the classes generated for reflection to skip verification for the constructors generated for serialization and externalization.   See [1] for details.

Reimplementing ReflectionFactory::newConstructorForSerialization with method handles will allow the VM hack to be removed. 

[1] https://bugs.openjdk.org/browse/JDK-8305104?focusedCommentId=14570146&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-14570146

Comments

Changeset: 5cea53d3 Author: Mandy Chung <mchung@openjdk.org> Date: 2023-09-14 16:10:55 +0000 URL: https://git.openjdk.org/jdk/commit/5cea53d372744ddf1bedaae4667415e6525ef82f

14-09-2023

A pull request was submitted for review. URL: https://git.openjdk.org/jdk/pull/15600 Date: 2023-09-06 18:34:29 +0000

06-09-2023