title: Eclipse doesn't remember source lookup path
body: <p>For some reason Eclipse doesn't remember source lookup path for some java projects, and every time during debugging (after redeploying) I need to press "Edit source lookup path" button and add current project to the list.</p>
  
  <p>Does anyone know how to make it remember selected source location?</p>
  
  <p><strong>EDIT:</strong>
  It is a tomcat project, built with ant. Eclipse version is 3.2.2</p>
  
  <p>.classpath looks like this:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt;
  &lt;classpath&gt;
      &lt;classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/&gt;
      &lt;classpathentry kind="src" path="src"/&gt;
      &lt;classpathentry kind="output" path="web/WEB-INF/classes"/&gt;
      &lt;classpathentry kind="lib" path="web/WEB-INF/lib/commons-collections-3.2.jar"/&gt;
      ... bunch of libs here
  &lt;/classpath&gt;
  </code></pre>
  
  <p><strong>UPDATE:</strong> I found required setting - it is under General Preferences -> Tomcat -> Source path.</p>