8283784: java_lang_String::as_platform_dependent_str stores to oop in native state

[jyma22]

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Hi all,

This pull request contains a backport of commit c9a469a from the openjdk/jdk repository.

The commit being backported was authored by David Holmes on Mar 30 2022 and was reviewed by Kim Barrett, Aleksey Shipilev, and Stefan Karlsson.

Thanks!

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Progress

• [x] Change must not contain extraneous whitespace
• [ ] JDK-8283784 needs maintainer approval
• [x] Commit message must refer to an issue

Issue

• JDK-8283784: java_lang_String::as_platform_dependent_str stores to oop in native state (Bug - P4)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk17u-dev.git pull/3988/head:pull/3988
$ git checkout pull/3988

Update a local copy of the PR:
$ git checkout pull/3988
$ git pull https://git.openjdk.org/jdk17u-dev.git pull/3988/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 3988

View PR using the GUI difftool:
$ git pr show -t 3988

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk17u-dev/pull/3988.diff