Weird but simple JSTL problem

Question

so a servelet forward the request to jsp, passing a request attribute which is String[ ] as following..
request.setAttribute("headers",headers);RequestDispatcher view = request.getRequestDispatcher("options.jsp");
view.forward(request,response);
in the options.jsp, I tried to use JSTL to iterate each element in the array and display it..
<c:forEach var="header" items="${headers}" varStatus="loopCounter">
<td><span class="style2"> ${header} <BR>${loopCounter.count}</span></td>
</c:forEach>
..simple and straghtforwrd..But it doesn't display each element in the String[ ], insteads, it shows something like
"org.apache.commons.el.ImplicitObjects7@6279d"
..... for each of the element (exactly the same).. but the loopCounter.count shows correctly, with correct number of elements expected..
WHY??!

Answer 1

${header} is an implicit variable in EL.
It provides a map to be the equivalent of request.getHeader(), much like ${param} is the equivalent of request.getParameter().
solution: rename your variable to be something else.
<c:forEach var="hdr" items="${headers}" varStatus="loopCounter">
  <td><span class="style2"> ${hdr} <BR>${loopCounter.count}</span></td>
</c:forEach>