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Fix SLF4J config for logger in unit tests #54
Description
The following warnings are currently being logged by the CI unit tests:
[INFO] -------------------------------------------------------
[INFO] T E S T S
[INFO] -------------------------------------------------------
[INFO] Running com.google.refine.sampleExtension.SampleUtilTest
SLF4J(W): No SLF4J providers were found.
SLF4J(W): Defaulting to no-operation (NOP) logger implementation
SLF4J(W): See https://www.slf4j.org/codes.html#noProviders for further details.
SLF4J(W): Class path contains SLF4J bindings targeting slf4j-api versions 1.7.x or earlier.
SLF4J(W): Ignoring binding found at [jar:file:/home/runner/.m2/repository/org/slf4j/slf4j-simple/1.7.36/slf4j-simple-1.7.36.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J(W): See https://www.slf4j.org/codes.html#ignoredBindings for an explanation.
Not sure if this is something inherited from the core or specific to this rep
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shubham09-patel commentedon May 23, 2026
Hi, I’d like to work on this issue.
I’ll try to reproduce the warning locally by running the unit tests, then inspect the Maven dependencies to find where the old slf4j-simple:1.7.36 binding is coming from. If it is specific to this repository, I’ll update the test logging dependency/configuration and open a PR.
tfmorris commentedon May 26, 2026
Thanks for tackling this! Let us know if you need any help.