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Recently, we met a ClassNotFound Expcetion when using lance-spark. The reason we found is that slf4j-api's classes were builded to fat jar and our original spark classpath(jars directory) already has slf4j-api jar.

We should exclude it.

@github-actions github-actions bot added the chore Features related to test, build, style improvements label Nov 12, 2025
@hfutatzhanghb
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@jackye1995 @majin1102 Hi, could you please review this PR when you have free time? Thanks a lot.

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ACTION NEEDED
Lance follows the Conventional Commits specification for release automation.

The PR title and description are used as the merge commit message. Please update your PR title and description to match the specification.

For details on the error please inspect the "PR Title Check" action.

@hfutatzhanghb hfutatzhanghb changed the title chore: exclude slf4j-api to prevent jar conflict in spark classpath. chore: exclude slf4j-api to prevent jar conflict in spark classpath Nov 12, 2025
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