How to send java.util.logging to log4j?

Question

I have an existing application which does all of its logging against log4j. We use a number of other libraries that either also use log4j, or log against Commons Logging, wh

Answer 1

you should manually add blew at startup

SLF4JBridgeHandler.removeHandlersForRootLogger()
SLF4JBridgeHandler.install()

demo -> https://gist.github.com/jiahut/654ecc75a13b0a1d8f3b4d5d2d69dc6d