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https://issues.apache.org/jira/browse/SLING-8556?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16883627#comment-16883627
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Bertrand Delacretaz commented on SLING-8556:
--------------------------------------------
I've progressed a bit in wiring Sling components statically so that
{{native-image}} builds work, at
https://github.com/apache/sling-whiteboard/tree/master/graalvm
I'm able to start a container and get a valid HTTP response from Sling code in
in about 1.3 seconds, measured with
[https://github.com/apache/sling-whiteboard/tree/master/graalvm/time-to-first-request]
, which is promising.
However, at commit
[https://github.com/apache/sling-whiteboard/commit/a4aa6a14ee9586a41f766799f2e620c34d7e0b26]
the native-image build fails with a NullPointer exception. Reverting to the
previous version of that SlingContext class, the {{native-image}} build works
but the tests fail obviously as the disabled
{{ResourceResolverFactoryActivator}} is required.
I don't have time right now to investigate deeper but this looks like a
{{native-image}} bug (using GraalVM + native-image 19.1.0), I would expect a
descriptive error message if something's wrong in my code.
For now I'll pursue a different way of getting a minimal Sling instance to
start quickly (for my adaptTo() 2019 talk) and might come back to this later.
> Experiments with Sling and GraalVM native images
> ------------------------------------------------
>
> Key: SLING-8556
> URL: https://issues.apache.org/jira/browse/SLING-8556
> Project: Sling
> Issue Type: New Feature
> Components: General
> Reporter: Bertrand Delacretaz
> Assignee: Bertrand Delacretaz
> Priority: Minor
>
> For my talk at adaptTo() 2019 I'm running a series of experiments with
> [GraalVM|http://graalvm.org], [Quarkus.io|http://quarkus.io] and Sling.
> The goal is to find out what's needed to create native images that run Sling
> components - they don't have to run a complete Sling instance but running
> things like request processing in Docker images that start quickly can be
> interesting.
> I'll use this ticket to document my experiments, feedback is welcome.
> This is just meant as a journal of my experiments, it might not be very well
> organized, I'll summarize it in the adaptTo() talk.
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