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https://issues.apache.org/jira/browse/BEAM-10516?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17182762#comment-17182762
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Beam JIRA Bot commented on BEAM-10516:
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This issue is assigned but has not received an update in 30 days so it has been
labeled "stale-assigned". If you are still working on the issue, please give an
update and remove the label. If you are no longer working on the issue, please
unassign so someone else may work on it. In 7 days the issue will be
automatically unassigned.
> Including TableProvider IO dependencies as `provided` can lead to
> ClassDefNotFoundErrors for users
> --------------------------------------------------------------------------------------------------
>
> Key: BEAM-10516
> URL: https://issues.apache.org/jira/browse/BEAM-10516
> Project: Beam
> Issue Type: Bug
> Components: dsl-sql, sdk-java-core
> Reporter: Scott Lukas
> Assignee: Scott Lukas
> Priority: P2
> Labels: stale-assigned
>
> The SQL extension uses ServiceLoader to load table providers:
> https://github.com/apache/beam/blob/v2.22.0/sdks/java/extensions/sql/src/main/java/org/apache/beam/sdk/extensions/sql/impl/BeamCalciteSchemaFactory.java#L85
> And the IOs used in the built-in table providers (e.g. pubsub json, avro,
> parquet, ...) are included as {{provided}} dependencies, not {{compile}}.
> This means that we are able to build the sql extension jar, and AutoService
> picks them up and records them in META-INF/services. However because they are
> {{provided}} dependencies, the necessary IO modules are not marked as
> dependencies for the SQL extension.
> This means consumers of :sdks:java:extensions:sql (like
> :sdks:java:extensions:sql:jdbc) can end up with ServiceLoader registering a
> TableProvider that will fail with ClassDefNotFoundError, unless they add the
> necessary dependency.
> Possible solution: Refactor TableProvider to beam core (or another shared
> module) in order to solve Service Loader errors with
> SchemaCapableIOTableProviderWrapper. Remove getTableType overrides of
> SchemaCapableIOProviderWrapper when fixed.
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