Need to test for a Hashtable key in JSTL

Question

What I am trying to accomplish is to test a Hashtable for a specific key and if it is there run some HTML.
This is my code but it obviously wrong since JSTL yells at me when I try to execute it.
<c:set var="hash" scope="page" value="${UpdateStatusData}"/>
     <c:if test="${hash.containsKey('success')}">
          success
     </c:if>UpdateStatusData is a Hashtable. How can I modify this "code" in oder to test for a key?
Thanks

Answer 1

EL != java
Luckily EL handles Maps quite well:
<c:set var="hash" scope="page" value="${UpdateStatusData}"/>
// one way
<c:if test="${not empty hash.success}">
     success
</c:if>
// an alternative syntax
<c:if test="${not empty hash['success']}">
     success
</c:if>Cheers,
evnafets