Compact profile modules

[David Holmes]

Hi Mandy,

On 17/01/2017 7:51 AM, Mandy Chung wrote:
> java.compact$N modules were removed in jdk-9+150 [1][2].
>
> We revisited the need for java.compact$N aggregator.  Compact Profiles
> were useful in SE 8 but are legacy in 9, as intended from the outset. Highlighting them in the standard SE 9 module graph gives them
> unnecessary importance going forward. We want people who care about
> small systems to think about modules, not profiles.

I would assume however that we will clearly document how to go from a 
compact profile to using jlink to produce a comparable JRE? At a 
minimum, given the compact profiles were defined at the package-level, 
we should document which modules are needed to provide the packages 
defined for a given compact profile.

> In addition, these aggregator modules are not a complete solution
> since the necessary service providers are still needed to be added
> manually for the Compact Profile builds.

That sounds like it also needs further explanatory documentation.

Thanks,
David

>
> Mandy
> [1] https://bugs.openjdk.java.net/browse/JDK-8171201
> [2] http://mail.openjdk.java.net/pipermail/jigsaw-dev/2016-December/010561.html
>
>> On Jan 16, 2017, at 1:35 PM, Sander Mak <sander.mak at luminis.eu> wrote:
>>
>> The build I'm currently using (jigsaw-b151) doesn't contain the java.compactN modules anymore. Looks like this is a deliberate removal [1], although I can't find any reason for it. Are they permanently gone? Why? They made for such a nice example of implied readability in the JDK... They were also useful in constructing small images with jlink. As I understood things at JavaOne, jlink with the compact module definitions was supposed to be a 'migration path' from Java SE 8 embedded.
>>
>>
>> Sander
>>
>> [1] http://mail.openjdk.java.net/pipermail/jigsaw-dev/2016-December/010603.html
>