title: Eclipse RCP - Conflicting handlers for ltk rename command
body: <p>I am devloping an Eclipse RCP application in which I am writing my own refactoring code. I am overriding 
  <code>org.eclipse.ltk.ui.refactoring.commands.renameResource</code> command as follows:</p>
  
  <pre><code>&lt;extension point="org.eclipse.ui.commands"&gt;
    &lt;command
        defaultHandler="com.rename.command.CustomRenameHandler"
        id="org.eclipse.ltk.ui.refactoring.commands.renameResource"
        name="Rename"&gt;
    &lt;/command&gt;
  &lt;/extension&gt;
  </code></pre>
  
  <p>When I run the application, I get following error message</p>
  
  <pre><code>!MESSAGE Conflicting handlers for org.eclipse.ltk.ui.refactoring.commands.renameResource 
  </code></pre>
  
  <p>Due to this, sometimes my handler is called and sometimes RenameResourceHandler is called. </p>
  
  <p>Any pointers will be helpful.</p>