关于 SLF4J 重复绑定的问题

[Lullaby]

IDE是idea社区版集成maven和jetty；
SLF4J报如下提示，本不影响使用；
但奇葩的是他说class path包含了重复的绑定，而两个classpath一个是workspace path，一个是maven path，jetty运行的classpath(也就是应用代码路径)没有重复的jar！

为何classpath指向了maven路径？

SLF4J: Class path contains multiple SLF4J bindings. 
SLF4J: Found binding in [jar:file:/E:/maven/repo/org/apache/logging/log4j/log4j-slf4j-impl/2.3/log4j-slf4j-impl-2.3.jar!/org/slf4j/impl/StaticLoggerBinder.class] 
SLF4J: Found binding in [jar:file:/D:/workspace/workspace_backend/p2p-backend/modules/modules-rrs/rrs-business/target/rrs-backend/WEB-INF/lib/log4j-slf4j-impl-2.3.jar!/org/slf4j/impl/StaticLoggerBinder.class] 
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.