Daniel Collins created BEAM-13504:
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Summary: Remove provided/compileOnly deps not intended for
external use
Key: BEAM-13504
URL: https://issues.apache.org/jira/browse/BEAM-13504
Project: Beam
Issue Type: Task
Components: build-system
Reporter: Daniel Collins
There are a lot of compileOnly deps in place to make certain libraries lighter.
In many cases, these don't actually reduce the size of the resulting binary,
and are a result of an overriding strategy where the types of the
implementation are needed in the loading library.
In the short term, these can all be replaced by `implementation`, with the
downside that jars will have extra explicit dependencies, and the upside that
users will not experience runtime errors due to missing dependencies. In the
longer term, we should restructure these libraries (sql being the worst
offender) to use serviceLoaders or other strategies that do not require naming
the types of the overriders within the same package that the interface is
declared.
The one exception to this is libraries that we intend to use whatever version
the user puts on the classpath at runtime without expressing a version
preference, such as hadoop or kafka. We should still consider if this has value
though, as users are still free to explicitly override the dependency version
we choose, even if we declare an `implementation` dependency on it.
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