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https://issues.apache.org/jira/browse/VELOCITY-929?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17134761#comment-17134761
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Thomas Mortagne commented on VELOCITY-929:
------------------------------------------

There is no reason to make the slf4j-api dependency provided. Maven will select 
in priority your own slf4j  dependency version since Maven selec

> Improper SLF4J dependency
> -------------------------
>
>                 Key: VELOCITY-929
>                 URL: https://issues.apache.org/jira/browse/VELOCITY-929
>             Project: Velocity
>          Issue Type: Bug
>          Components: Engine
>    Affects Versions: 2.2
>            Reporter: Mantas Gridinas
>            Priority: Minor
>
> Currently, velocity-engine-core defines a transitive dependency of 
> "slf4j-api" as a compile time dependency, rather than a non-transitive 
> compile time dependency as seen by snippet below
> {code:xml}
>     <dependency>
>       <groupId>org.slf4j</groupId>
>       <artifactId>slf4j-api</artifactId>
>       <version>1.7.30</version>
>       <scope>compile</scope>
>     </dependency>
> {code}
> Instead, the dependency's scope should be provided. This prevents classpath 
> races and leaves it up to the user/developer to pull in the necessary slf4j 
> API dependency for their project.
> Currently I use the following workaround to exclude the slf4j dependency
> {code:xml}
>         <dependency>
>             <groupId>org.apache.velocity</groupId>
>             <artifactId>velocity-engine-core</artifactId>
>             <version>2.2</version>
>             <exclusions>
>                 <exclusion>
>                     <groupId>org.slf4j</groupId>
>                     <artifactId>slf4j-api</artifactId>
>                 </exclusion>
>             </exclusions>
>         </dependency>
> {code}



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