RFR: 8311302: Allow for jlinking a custom runtime without packaged modules being present [v10]

[Severin Gehwolf]

On Wed, 29 Nov 2023 22:38:45 GMT, Mandy Chung <mchung at openjdk.org> wrote:

>> Severin Gehwolf has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Tighten ModifiedFilesExitTest
>>   
>>   Ensure the error message is reasonable and doesn't include
>>   Exceptions presented to the user.
>
> src/jdk.jlink/share/classes/jdk/tools/jlink/internal/RunImageArchive.java line 47:
> 
>> 45: import jdk.tools.jlink.plugin.ResourcePoolEntry.Type;
>> 46: 
>> 47: public class RunImageArchive implements Archive {
> 
> What about `JimageArchive` or `JRTArchive`?   while jimage does not include the files not in the jimage, it may be okay since that contains most of the files.

Renamed it to `JRTArchive`.

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PR Review Comment: https://git.openjdk.org/jdk/pull/14787#discussion_r1415293858