RFR: 8311302: Allow for jlinking a custom runtime without packaged modules being present [v20]

[Mandy Chung]

On Fri, 15 Mar 2024 09:55:15 GMT, Severin Gehwolf <sgehwolf at openjdk.org> wrote:

> > If `--enable-runtime-link-image` is enabled, the JDK image does not include the packaged modules.
> 
> That's not true. Right now `--enable-runtime-link-image` modifies how the `lib/modules` image looks like (adds a bunch of extra resources). That's it. It doesn't modify the setup of packaged modules. 

It is true that they are orthogonal.   jlink does allow to produce a linkable image with `--keep-packaged-modules` and the resulting JDK image would work.  

However, the goal of this work is to produce a JDK image with smaller footprint.   This is a question to JDK build to allow configuring building a linkable image with packaged modules.

In addition, `--enable-keep-packaged-modules` is enabled by default.    Do you want the linkable image includes `jmods` as it's currently implemented in this PR?   I assume not.

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PR Comment: https://git.openjdk.org/jdk/pull/14787#issuecomment-2000322485