jstl and HashMap null

[Edward Chen]

If I use c:if test to see if a HashMap is null like below, it will not work. Why ?

Thanks.

// doesn't work
<c:if test="${c.reportDataMap != null}">
	test
</c:if>

// work
<c:forEach var="entry" items="${c.reportDataMap}" varStatus="status">
work

</c:forEach>

[Chinmaya Chowdary]

Hi, Edward.

Can you please post, what error message you are getting?

[Vijitha Kumara]

What "c.reportDataMap" contains (what are "c" and "reportDataMap")? What's the name of the Map attribute?

[Bear Bibeault]

Is there a reason you're mot using the empty operator?