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  • slf4j update

    From e.d.programmer@gmail.com@21:1/5 to All on Mon Dec 12 14:37:49 2022
    Usually if you update a maven dependency version, you just change the number and fix any code that gets errors.
    Today I learned there's a new version of slf4j, if you update it doesn't give any errors, it just doesn't work. You have to change a corresponding dependency, on artifact name not just version number.
    https://mvnrepository.com/artifact/org.apache.logging.log4j/log4j-slf4j2-impl

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  • From Andreas Leitgeb@21:1/5 to e.d.pro...@gmail.com on Tue Dec 13 10:27:52 2022
    e.d.pro...@gmail.com <e.d.programmer@gmail.com> wrote:
    Usually if you update a maven dependency version, you just change the number and fix any code that gets errors.
    Today I learned there's a new version of slf4j, if you update it doesn't give any errors, it just doesn't work. You have to change a corresponding dependency, on artifact name not just version number.
    https://mvnrepository.com/artifact/org.apache.logging.log4j/log4j-slf4j2-impl

    Thanks for the heads-up, but please elaborate a bit more...

    - what is the visible symptom of "it just doesn't work" ?
    (so others could recognize the symptoms)

    - which previous artifact name needs to be changed to the given one?
    (so others could scan their deps for the old name)

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  • From e.d.programmer@gmail.com@21:1/5 to Andreas Leitgeb on Tue Dec 13 04:06:53 2022
    On Tuesday, December 13, 2022 at 5:28:08 AM UTC-5, Andreas Leitgeb wrote:
    - what is the visible symptom of "it just doesn't work" ?
    (so others could recognize the symptoms)

    Using slf4j-api 2.0.2 or newer with log4j-slf4j-impl was printing stuff to eclipse console, nothing wrote to the log files. It doesn't make the connection, fails silently.

    - which previous artifact name needs to be changed to the given one?
    (so others could scan their deps for the old name)
    The old slf4j-api 1.x goes with a log4j-slf4j-impl.
    The new slf4j-api has to have log4j-slf4j2-impl.

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