Grtting an Error while using forEach tag

[shanmugampl]

Dear All,

     I am using forEach tag for iterating over an ArrayList present in 
the session scope. The code I have used is

<core:forEach var="image" items="${TREE-IMAGES}">
  ------
  ------
</core:forEach>
     When i execute this page I get the following error

An error occurred while evaluating custom action attribute "items" with 
value "${TREE-IMAGES}": Attempt to coerce a value of type 
"java.util.ArrayList" to type "java.lang.Long" (null

 But if I get the value and store it in a different name the forEach 
tag works properly. The changed code is

<%
java.util.ArrayList list = 
(java.util.ArrayList)pageContext.findAttribute("TREE-IMAGES");
session.setAttribute("IMAGES",list); %>
<core:forEach var="image" items="IMAGES">
   -----
   -----
</core:forEach>

 This works properly. Will there be a problem if there is a - in the 
variabe name or have i misunderstood something.

Thanks
Shanmugam PL
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