Review Request: JDK-8155955: packager needs to determine the root modules to create JRE image

[Kevin Rushforth]

What the packager needs is a means at runtime to get the same set of JRE 
modules that an application in the unnamed module reads by default. If 
there is a better way to provide this, then that would be fine, but for 
both backward compatibility, and to allow a non-modular application to 
package the application + JRE that will run the same way -- seeing the 
same JRE modules -- that it does when running from the installed JDK.

-- Kevin


Alan Bateman wrote:
> On 04/06/2016 01:26, Mandy Chung wrote:
>
>> http://cr.openjdk.java.net/~mchung/jdk9/webrevs/8155955/webrev.00/
>>
>> This provides some utility methods for packager to determine the 
>> platform modules to help packager independent of any API change.  
>> This helper class will ultimately move to the packager implementation 
>> when FX upgrades its boot JDK later in JDK 9 release.
>>
> I think more context is needed here. I'm generally concerned that this 
> is duplicating code and creating a maintenance issue. Also it just 
> doesn't seem right for the FX packager to be concerned with the subset 
> of the modules that are defined to the boot and platform class 
> loaders. If it needs the names of the modules in the JRE build then 
> this is something that we can only compute in the build.
>
> -Alan