title: How to enable DEBUG level logging with Jetty embedded?
body: <p>I'm trying to set the logging level to <code>DEBUG</code> in an embedded Jetty instance.</p>
  
  <p>The documentation at <a href="http://docs.codehaus.org/display/JETTY/Debugging" rel="noreferrer">http://docs.codehaus.org/display/JETTY/Debugging</a> says to -</p>
  
  <blockquote>
    <p>call SystemProperty.set("DEBUG", "true") before calling new
    org.mortbay.jetty.Server().</p>
  </blockquote>
  
  <p>I'm not sure what the <code>SystemProperty</code> class is, it doesn't seem to be documented anywhere.  I tried <code>System.setProperty()</code>, but that didn't do the trick.</p>