title: Have you used Perf4J to collect and analyze performance metrics in Java app?
body: <p>Did you use <a href="http://perf4j.codehaus.org/index.html" rel="noreferrer">Perf4J</a> in your Java application to collect and analyze performance stats? </p>
  
  <p>What was the typical pattern (using log files, utilities, UI, JMX, etc.)? </p>
  
  <p>Did you use annotations and AOP-based features? </p>
  
  <p>Did you use any JMX integration? </p>
  
  <p>How did you handle production configuration? </p>
  
  <p>Did you include performance stats views/reports as a feature in your application? </p>
  
  <p>Please tell if and why you decided on alternative library/approach.</p>