[jira] [Updated] (CASSANDRA-13961) Safe castings to logback classes

["Stefan Podkowinski (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-13961?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Stefan Podkowinski updated CASSANDRA-13961:
-------------------------------------------
    Fix Version/s:     (was: 3.11.1)
                       (was: 3.11.0)
                       (was: 3.10)

> Safe castings to logback classes
> --------------------------------
>
>                 Key: CASSANDRA-13961
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13961
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Federico Fernández
>            Priority: Minor
>              Labels: patch
>         Attachments: LogbackPatch.patch
>
>
> While working in an SBT plugin for I faced the problem: the system was injecting in the classpath the log4j implementation for SLF4J. This caused a {{ClassCastException}} in the startup process.
> Cassandra uses logback but IMHO we shouldn't fail at runtime if SLF4J loads another implementation. Ideally, we should allow the users to choose their favourite implementation.
> I've attached a patch that adds a {{instanceof}} checkings before casting the logback classes.
> Thanks.



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