title: Proguarding a Javafx application using slf4j logger
body: <p>I previously built a Javafx application and successfully wrapped it with proguard, while using java.util.Logger. However, I need to switch from java.util.Logger to the Logger provided by slf4j and use qos-logback. When I use proguard on it, I run into an array of warnings, all generated from either of the slf4j or the qos-logback library. Some of the (MANYYY) warnings are:</p>
  
  <ul>
  <li>Warning: ch.qos.logback.core.status.ViewStatusMessagesServletBase:
  can't find referenced class javax.servlet.http.HttpServletResponse</li>
  <li>Warning: ch.qos.logback.core.status.ViewStatusMessagesServletBase:
  can't find referenced class javax.servlet.http.HttpServletRequest</li>
  <li>Warning: ch.qos.logback.core.status.ViewStatusMessagesServletBase:
  can't find referenced class javax.servlet.http.HttpServletResponse</li>
  <li>Warning: ch.qos.logback.core.status.ViewStatusMessagesServletBase:
  can't find referenced class javax.servlet.http.HttpServletRequest</li>
  <li>Warning: ch.qos.logback.core.status.ViewStatusMessagesServletBase:
  can't find referenced class javax.servlet.http.HttpServletResponse</li>
  <li>Warning: ch.qos.logback.core.status.ViewStatusMessagesServletBase:
  can't find referenced class javax.servlet.http.HttpServletRequest</li>
  <li>Warning: ch.qos.logback.core.status.ViewStatusMessagesServletBase:
  can't find referenced class javax.servlet.http.HttpServletResponse</li>
  <li>Warning: org.slf4j.MDC: can't find referenced method
  'org.slf4j.impl.StaticMDCBinder getSingleton()' in program class
  org.slf4j.impl.StaticMDCBinder </li>
  <li>Warning: org.slf4j.MarkerFactory:
  can't find referenced method 'org.slf4j.impl.StaticMarkerBinder
  getSingleton()' in program class org.slf4j.impl.StaticMarkerBinder</li>
  <li>Note: ch.qos.logback.classic.gaffer.GafferUtil accesses a constructor
  '(ch.qos.logback.classic.LoggerContext)' dynamically</li>
  </ul>
  
  <p>If you notice, some of the warnings are even repeating. I will be really grateful if anyone can help me out regarding this, even if it's just pointing me in the right direction since I've been stuck on it for a while. Many thanks in advance.</p>