Different errors using standard.jar

Question

I've been trying to use the standard.jar (JSTL1.0) but I keep getting different errors. I presume, it's JSP1.2 and Servlet2.3 compliant.
Here is the problem description:
I've a web-module. I kept this jar under WEB-INF/lib. When I use the taglib usiing
<%@ taglib prefix="fmt" uri="http://java.sun.com/jstl/fmt" %>
I get "Unable to open taglibrary http://java.sun.com/jstl/fmt : Could not locate TLD http://java.sun.com/jstl/fmt".
And when I use the taglib using a local fmt.tld, as in,
<%@ taglib prefix="fmt" uri="/tld/fmt.tld" %>
I get, "com.sun.portal.providers.jsp.jasper3.jasper.compiler.CompileException: ......./HarnessPortletContent.jsp(47,65) Unable to load class null".
Tried both Tomcat3.0 and Sun App Server 7.0

Answer 1

I know that the JSTL 1.0 jars work in AppServer 7.1. The TLD scanning mechanism is included in 7.1 where you only need to place the jar files that include your TLD's in the web application's WEB-INF/lib directory.
You can either upgrade to AppServer 7.1 or do the mappings yourself manually as follows:
1) unjar the JSTL implementation jar file
2) copy the TLD's to your WEB-INF directory
3) rejar the JSTL implementation jar file and place it in your WEB-INF/lib directory
4) modify your web.xml file to point to the JSTL TLD's like:
<taglib>
<taglib-uri>http://java.sun.com/jstl/fmt</taglib-uri>
<taglib-location>/WEB-INF/fmt.tld</taglib-location>
</taglib>
I'd recommend upgrading since the above steps are tedious and you can avoid them by using a container like AppServer 7.1 or Tomcat 4.x that implements TLD scanning.
Thanks,
Justyna