Org.slf4j.impl.SimpleLoggerFactory cannot is cast to Ch.qos.logback.classic.LoggerContext

To view log information:

Slf4j:class path contains multiple slf4j bindings.  Slf4j:found Binding in [jar:file:/app/apache-tomcat-docbase/mmsi/web-inf/lib/slf4j-simple-1.6.4.jar!/org/slf4j/ Impl/staticloggerbinder.class]  slf4j:found binding in [jar:file:/app/apache-tomcat-docbase/mmsi/web-inf/lib/ Logback-classic-1.0.13.jar!/org/slf4j/impl/staticloggerbinder.class]  Slf4j:see http://www.slf4j.org/ Codes.html#multiple_bindings for an explanation.  Slf4j:actual binding is of type [org.slf4j.impl.SimpleLoggerFactory]  

Explain:

SLF4J: Class path contains multiple SLF4J bindings

slf4j:--

slf4j:--

slf4j:--

SLF4J: The actual binding is the type [org.slf4j.impl.SimpleLoggerFactory]

Workaround, remove Slf4j-simple-1.6.4.jar

How to find the problem:

Org.slf4j.impl.SimpleLoggerFactory cannot is cast to Ch.qos.logback.classic.LoggerContext