title: java.util.logging: how to set level by logger package (or prefix)?
body: <p>My app uses many libraries and I'm using <code>java.util.logging</code> for logging. I'd like to be able to set different logging levels for each library by doing something like:</p>
  
  <pre class="lang-none prettyprint-override"><code>org.datanucleus.*.level = WARNING
  com.google.apphosting.*.level = WARNING
  com.myapp.*.level = FINE
  </code></pre>
  
  <p>Is is possible?</p>