Lets assume You have a HashMap like this:
Map map = new HashMap();
map.put("fruits", "Apples");
map.put("Vegetables", "Tomota");
map.put("Vehicles", "Hero Honda");
request.setAttribute("itemsMap", map);
We need the following code to repeat the HashMap Using JSTL tags
c:forEach var="item" items="${itemsMap}">
Key is : ${item.key} and value is: ${item.value}
/c:forEach>
Please note that "<" is missing before c:forEach tag