On Wed, 6 Sep 2023 18:34:29 GMT, Mandy Chung <mch...@openjdk.org> wrote:

> This reimplements 
> `sun.reflect.ReflectionFactory::newConstructorForSerialization` with method 
> handles.
> 
> 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.  This change will allow such VM hack 
> to be removed.
> 
> A `jdk.reflect.useOldSerializableConstructor` system property can be set to 
> use the old implementation in case if customers run into any compatibility 
> issue.   I expect this change has very low compatibility risk.   This system 
> property is undocumented and will be removed in a future release.

This pull request has now been integrated.

Changeset: 5cea53d3
Author:    Mandy Chung <mch...@openjdk.org>
URL:       
https://git.openjdk.org/jdk/commit/5cea53d372744ddf1bedaae4667415e6525ef82f
Stats:     151 lines in 10 files changed: 111 ins; 11 del; 29 mod

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

Co-authored-by: Chen Liang <li...@openjdk.org>
Reviewed-by: rriggs

-------------

PR: https://git.openjdk.org/jdk/pull/15600

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