RFR: 8342035: jlink plugins for setting java.vendor, java.vm.vendor and java.vendor.url

[Mandy Chung]

On Thu, 7 Nov 2024 21:38:28 GMT, Henry Jen <henryjen at openjdk.org> wrote:

> Add jlink plugins to allow branding change for java.vendor, java.vm.vendor and java.vendor.url.
> 
> The jlink plugin will change the value in java.lang.VersionProps, which will set those property values. The `java.vm.vendor` was initialized by VM with value set at build time, and then later be replaced with value from VersionProps.
> 
> To keep current behavior, we treat 'N/A' value as no-op to mimic current build behavior. Perhaps we don't really need this, as proper value should be set with `branding.conf` in official build.

I think it's cleaner to explore defining the VM related branding configuration `make/conf/branding.conf` where the OpenJDK value of system properties in VersionProps.java.template are defined.    One idea is to add .template file in `src/hotspot` that the build can patch the values before starting building VM so that it will not depend on VersionProps class to be loaded.

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PR Comment: https://git.openjdk.org/jdk/pull/21964#issuecomment-2512713166