title: log4j - set different loglevel for different packages/classes
body: <p>I use log4j for logging and i want to print all logger.debug statements in a particular class / selected package.</p>
  <p>i set the cfg as below&gt;</p>
  <pre><code>log4j.category.my.pkg=info
  log4j.category.my.pkg.ab.class1=debug
  </code></pre>
  <p>but still only info messages are shown..</p>
  <p>is this not the right way ?</p>