Testing whether cognitect/aws-api+s3 library can be used in a native binary image with GraalVM.
Currently testing:
[com.cognitect.aws/api "0.8.301"]
[com.cognitect.aws/endpoints "1.1.11.537"]
[com.cognitect.aws/s3 "714.2.430.0"]
Gotchas:
aws-api uses
dynaload
to load dynamically resources and protocols at runtime. Avoid as much
as you can the use of dynaload by pre-loading the required
resources.
For example if during the compilation with native-image you see a bunch of WARNING messages like:
WARNING: Could not resolve cognitect.aws.protocols.rest_xml$eval151 for reflection configuration.
Then just require the namespace directly (see simple.main)
Finally, you need to pre-create a http-client for the same reason and pass it to all your
aws clients. For this you can use Clojure's delay, to ensure runtime initialization.
Test with:
lein do clean, uberjar, native-config, native, run-native