title: How to add custom log handler to Google App Engine?
body: <p>I am trying to add a custom log handler to my java application. I have implemented a InnerLogger class that extends java.util.Logging.Handler class. And in my logging.properties declared as a handler:</p>
  
  <pre><code>handlers:com.mycompany.util.InnerLogger
  </code></pre>
  
  <p>But when I launch the development sever, I got the following error:</p>
  
  <pre><code>Can't load log handler "com.mycompany.util.InnerLogger"
  java.lang.ClassNotFoundException: com.mycompany.util.InnerLogger
  </code></pre>
  
  <p>I can add my custom handler to loggers one by one ,but I just wondering is there a way to add it to all loggers. </p>
  
  <p>Thanks</p>