Add full Java module descriptors

[aalmiray]

Describe the feature

I'd be great if AWS Java SDK supplied full Java module descriptors.

Use Case

This will help modular projects that consume the SDK, specifically those that create custom Java Runtimes with jlink, as the latter does not support automatic modules but explicit modules.

Proposed Solution

It's possible to keep bytecode baseline compatible with Java 8 while providing a full module descriptor thanks to ModiTect.

Other Information

I've checked all artifacts defined by the BOM using https://github.com/kordamp/jarviz/ to see if there are any split packages. There are none! 🎉

Most artifacts have an explicit automatic module name via the Automatic-Module-Name manifest attribute, with the following artifacts missing such attribute:

• codegen-lite-maven-plugin-2.20.35.jar
• appsync-2.20.35.jar
• cloudwatch-metric-publisher-2.20.35.jar

Acknowledgements

• I may be able to implement this feature request
• This feature might incur a breaking change

AWS Java SDK version used

2.20.35

JDK version used

openjdk version "11.0.17" 2022-10-18 LTS OpenJDK Runtime Environment Zulu11.60+19-CA (build 11.0.17+8-LTS) OpenJDK 64-Bit Server VM Zulu11.60+19-CA (build 11.0.17+8-LTS, mixed mode)

Operating System and version

Darwin 20.6.0 Darwin Kernel Version 20.6.0: Tue Feb 22 21:10:41 PST 2022; root:xnu-7195.141.26~1/RELEASE_X86_64 x86_64

[debora-ito]

Hi @aalmiray can you give us more details on how Java module descriptors will impact your use case, and how exactly they will help?

[aalmiray]

Hi @debora-ito, my direct use case is creating modular Java Runtimes with jlink. As stated above, automatic modules can't be used in this way by design. Only full modules may be used with jlink to generate modular runtimes.

Additionally, going down this road may help the AWS Java Sdk team google/guava#2970 (comment)

[debora-ito]

Discussed with the team, we are interested in this, but some research will be required on our side.

[aalmiray]

Thank you. Happy to help in any way I can.

[SentryMan]

Having recently learned how to use Jlink to make application images, I'm also invested in this. Is there anything we can do to get this moving?

[SentryMan]

Any news on this?

[SentryMan]

put another way, if I were to raise a pr for this, would it be accepted?

[SentryMan]

@debora-ito Has the team done any more research since? I'm blocked from packaging my applications with Jlink until this is resolved.

[debora-ito]

@SentryMan no, we haven't worked on this task.