The inspection claims "light" is always false.
<%
String color ;
boolean light = true ;
%>
<logic:iterate id="reservation" scope="request" name="ccs.conflict.list">
<%
if( light ) { color = " light" ; } else { color = "dark" ; }
light = !light ;
%>
<tr>
<td class="<%= color %>">...</td>
</tr>
</logic:iterate>