title: Overriding a class file from a library JAR in a Java web app
body: <p>In my Java web app, I have these files:</p>
  
  <pre><code>/WEB-INF/classes/com/example/Foo.class
  /WEB-INF/lib/example.jar &lt;-- contains the class "com.example.Foo"
  </code></pre>
  
  <p>Will the class defined in the <code>classes</code> directory be used instead of the class defined in <code>example.jar</code>?</p>
  
  <p>Thanks.</p>