title: Newly added property in log4j-DailyRollingFileAppender is not found
body: <p>I was trying to have log4j roll log files on daily basis with a maxBackUpIndex.
  This as per many blogs and documentation is not available.
  So from some blog, I figured out that we can update the DailyRollingFileAppender class file itself to have maxBackupIndex property and its implementation.</p>
  
  <p>I was able to add the new implementation and replace the original DailyRollingFileAppender file with new updated one.</p>
  
  <p>But the updated log4j.jar does not reflect my change, it says "log4j:WARN No such property [maxBackupIndex] in org.apache.log4j.DailyRollingFileAppender"</p>
  
  <p>Please suggest, if anyone has encountered something similar to this.</p>