title: HTTPAppender not found Log4j2
body: <p>I am trying to use HTTP appender of Log4j2 in my mule project but unfortunately I am receiving  during compile time . </p>
  
  <blockquote>
    <p>2018-12-11 15:56:53,355 main ERROR Error processing element Http ([Appenders: null]): CLASS_NOT_FOUND
    2018-12-11 15:56:53,389 main ERROR Unable to locate appender "Http1243" for logger config "root"
    2018-12-11 15:56:53,471 main WARN Unable to instantiate org.fusesource.jansi.WindowsAnsiOutputStream
    INFO  2018-12-11 15:56:53,543 [main] org.mule.module.launcher.application.DefaultMuleApplication: </p>
  </blockquote>
  
  <p>Following is my configaration :</p>
  
  <pre><code>&lt;Http name="Http1243" url="https://localhost:80082/test/log4j/"&gt;
          &lt;Property name="X-Java-Runtime" value="$${java:runtime}" /&gt;
          &lt;JsonLayout properties="true" /&gt;
          &lt;/Http&gt;
  
          &lt;AsyncRoot level="INFO"&gt;
          &lt;AppenderRef ref="DAILY_LOG" /&gt;
          &lt;AppenderRef ref="Http1243" /&gt;
          &lt;/AsyncRoot&gt;
  </code></pre>