title: How to Switch slf4j logger implementation1 to implementation2 at runtime
body: <p>Assume you have a webapplication, in which you are using your own custom slf4j implementation.
  but due to some performance reason you want to switch custom slf4j implementation to any slf4j implementation like (log4j/logback etc) for some time.</p>
  
  <p>one way is you can remove the custom slf4j jar from the classpath and add any log4j/logback jar and redeploy the application.</p>
  
  <p>But can we change this at runtime? </p>