RFR: 8263968: CDS: java/lang/ModuleLayer.EMPTY_LAYER should be singleton [v2]

[Alexander Scherbatiy]

On Wed, 24 Mar 2021 16:31:20 GMT, Claes Redestad <redestad at openjdk.org> wrote:

>> Aleksei Voitylov has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   fix style
>
> Looks good. The need to retain singleton/identity semantics of constants like this when archiving in CDS has bitten us in the past.

> Unknown command `backport` - for a list of valid commands use `/help`.

There is the description on the SKARA/Backports page: https://wiki.openjdk.java.net/display/SKARA/Backports
Backport Commit Command

The /backport commit command can be used to quickly create a backport pull request for a given commit.
Just navigate to the comment in source code hosting provider's web UI and add a comment 
consisting of "/backport <repo>". 
If the commit does not apply clean on the target repository then a message
will be shown for the files with conflicts.

The `The /backport commit command ` link points to: https://wiki.openjdk.java.net/display/SKARA/Commit+Commands#CommitCommands-/backport
Commit Commands

Syntax

Description

Applies the commit onto the given branch in the given repository and then shows to a link to create a pull request with
the changes. The branch is optional and defaults to the master branch. If the commit does not apply 
then an message is shown describing the files containing conflicts.

Examples



What is the right way to create a backport to jdk16u?

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PR: https://git.openjdk.java.net/jdk/pull/3131