title: How to prevent file locking when undeploying a Tomcat web app?
body: <p>I am using the manager app in tomcat 7,
  and i am unable to undeploy an application completely.</p>
  
  <p>It says 
  <code>FAIL - Unable to delete [F:\apache-tomcat-7.0.33\webapps\balaji]. The continued presence of this file may cause problems.</code></p>
  
  <p>I read somewhere its because of some phenomenon called memory leak , and if we fix it the issue will be solved.</p>
  
  <p>Can anyone tell me what is this memory leak in tomcat 7, and how can we fix it ??
  I am using windows 7 OS.
  If i am able to fix it will my un-deploy and re-deploy process run smooth ?</p>