Review request: Install module content into zip files

[Mandy Chung]

Mark Reinhold wrote:

> http://cr.openjdk.java.net/~mr/jigsaw/rev/zip-module-content/ <http://cr.openjdk.java.net/%7Emr/jigsaw/rev/zip-module-content/>
>
>   
Looks good.

The classfiles and resource files are now stored in a zip file in the target
directory (previously in the "classes" directory).   For packaging a module
file, I think  jpkg -m option should accept a directory containing both 
.class files and resource files?  Typically resource files are copied to 
the classes destination directory during compilation.

This has nothing to do with this change.  I guess that jpkg options were 
influenced by the layout of the module library and potential optimization
in mind and thus I bring it up here.  

Mandy


> This change causes a module's classes and resources to be stored in zip
> files within the target library, regardless of whether the module came
> from a .jmod file or from explicit class and resource trees.
>
> This will help performance a tiny bit on some platforms and a small bit
> on others.  It's also a prelude to an even more-efficient library format,
> which will store zip-file offsets directly in module configuration files
> so that we never have to read zip-file directories.
>
> - Mark
>