anchor.diff:  <body>
   <h1><a href="jobtracker.jsp"><%=trackerName%></a> Hadoop Machine List</h1>
   
  -<h2>Task Trackers</h2>
   <%
  -  generateTaskTrackerTable(out, type, tracker);
  +  if (("excluded").equals(type)) {
  +    generateTableForExcludedNodes(out, tracker);
  +  } else {
  +    generateTaskTrackerTable(out, type, tracker);
  +  }
   %>
   
   <%
  
positive.code:     }
    }
  
  %>
  
  <html>
  
negative.code:                                        JobTracker tracker) throws IOException {
      Collection c;
      if (("blacklisted").equals(type)) {
        out.println("<h2>Blacklisted Task Trackers</h2>");
        c = tracker.blacklistedTaskTrackers();
      } else if (("active").equals(type)) {
        out.println("<h2>Active Task Trackers</h2>");
        c = tracker.activeTaskTrackers();
      } else {
        out.println("<h2>Task Trackers</h2>");
        c = tracker.taskTrackers();
      }
      if (c.size() == 0) {
  