Why can't slf4j-over-log4j and log4j-over-slf4j be included in the same deployment in EAP?

Solution Unverified - Updated -

Issue

  • Trying to include both slf4j-over-log4j and log4j-over-slf4j in the same deployment results in an exception with the following message:
    Detected both log4j-over-slf4j.jar AND slf4j-log4j12.jar on the class path

Environment

  • JBoss Enterprise Application Platform (EAP)
    • 4.x
    • 5.x
    • 6.x

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