[hibernate-issues] [Hibernate-JIRA] Created: (HHH-3753) Upgrade to SLF4J version 1.5.6

[Ceki Gulcu (JIRA)]

Upgrade to SLF4J version 1.5.6
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                 Key: HHH-3753
                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3753
             Project: Hibernate Core
          Issue Type: Improvement
          Components: build
            Reporter: Ceki Gulcu


I would like to suggest that hibernate upgrade to SLF4J version 1.5.6 (the trunk currently uses 1.5.2). Several important bugs were fixed between 1.5.2 and 1.5.6. Just as importantly, 1.5.6 is more tolerant when there is a mismatch between the slf4j-api and its binding (e.g. slf4j-log4j12). The version mismatch problem (see [1]) seems to pose problems to several users. 

We are taking this issue seriously. SLF4J version 1.5.6 mitigates this problem by alerting the user about SLF4J version mismatches. (Thus, instead of a mysterious exception, the user gets an explanation pinpointing the problem.) We are also working on making slf4j-api and its bindings to mix and match independenly of their versions.

Anyway, I think upgrading to SLF4J 1.5.6 would benefit hibernate users.

[1] http://slf4j.org/faq.html#compatibility

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