anchor.diff:  </div>
   </div>
   <% }
  -} else { // handle the case for fqtn is null with error message + redirect
  +  } catch(TableNotFoundException e) { %>
  +  <div class="container-fluid content">
  +    <div class="row inner_header">
  +      <div class="page-header">
  +        <h1>Table not found</h1>
  +       </div>
  +    </div>
  +    <p><hr><p>
  +    <p>Go <a href="javascript:history.back()">Back</a>
  +  </div> <%
  +  } catch(IllegalArgumentException e) { %>
  +  <div class="container-fluid content">
  +    <div class="row inner_header">
  +      <div class="page-header">
  +        <h1>Table qualifier must not be empty</h1>
  +      </div>
  +    </div>
  +    <p><hr><p>
  +    <p>Go <a href="javascript:history.back()">Back</a>
  +  </div> <%
  +  }
  +}
  +  else { // handle the case for fqtn is null with error message + redirect
   %>
   <div class="container-fluid content">
       <div class="row inner_header">
  
positive.code: </div>
  <%
  if ( fqtn != null ) {
    table = (HTable) master.getConnection().getTable(TableName.valueOf(fqtn));
    if (table.getTableDescriptor().getRegionReplication() > 1) {
      tableHeader = "<h2>Table Regions</h2><table class=\"table table-striped\" style=\"table-layout: fixed; word-wrap: break-word;\"><tr><th style=\"width:22%\">Name</th><th>Region Server</th><th style=\"width:22%\">Start Key</th><th style=\"width:22%\">End Key</th><th>Locality</th><th>Requests</th><th>ReplicaID</th></tr>";
  
negative.code:   import="org.apache.hadoop.hbase.TableName"
    import="org.apache.hadoop.hbase.HColumnDescriptor"
    import="org.apache.hadoop.hbase.client.RegionReplicaUtil"
    import="org.apache.hadoop.hbase.HBaseConfiguration"
    import="org.apache.hadoop.hbase.TableNotFoundException"%>
  <%
    HMaster master = (HMaster)getServletContext().getAttribute(HMaster.MASTER);
    Configuration conf = master.getConfiguration();
  