JSTL 1.0 unterminated tag

Question

I am new to java web development so please bear with me. Can someone please tell me why I get a jsp.error.unterminated tag exception from the following snippet:
<portlet:param name="event.id" value="<c:out: value="${evntContainer.event.id}"/>"/>I am using JSTL 1.0 on tomcat 4.1

Answer 1

You can't nest custom tags as attributes to other custom tags.
For custom tag attributes you can only use expressions. ie <%= expr %> (and ${expr} in a JSP2.0 container)
Given the constraints on JSTL1.0 and Tomcat4.1, then the only expression available is <%= expr %>
Is the <portlet:param> tag your own tag or one from a library?
The common approach is to allow providing the value as the body of a tag
<portlet:param name="event.id"><c:out: value="${evntContainer.event.id}"/></portlet:param>I don't know if the <portlet:param> tag supports that syntax or not. I know that <c:param> does.
If not, then you need to provide the value in an expression
ie <%= evntContainer.getEvent().getId() %>
You may need a <jsp:useBean id="evntContainer" class="....."/> tag on your page so that this would work.
cheers,
evnafets