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Date: Tue, 08 Aug 2006 13:00:40 +0200
From: Le Nguyen-Thinh <nthinh@nats.informatik.uni-hamburg.de>
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To: Tomcat Users List <users@tomcat.apache.org>
Subject: Taglibs ; error in a JSP using expression langluage
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Dear friends,

I have a JSP which uses following taglibs:

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %>


My JSP contains a piece of code which calls a tag from the taglib above:
<c:forEach begin="${0}" end="${MAX-1}" step="${1}" var="ind">					
					<c:set target="${argBean}" property="name" value="${paramValues.argName[ind]}" />
					<c:set target="${argBean}" property="type" value="${paramValues.argType[ind]}" />
					<c:set target="${argBean}" property="mode" value="${paramValues.argMode[ind]}" />
					<c:set target="${argBean}" property="state" value="${paramValues.argState[ind]}" />
					<c:set target="${predBean}" property="predArg" value="${argBean}" />
</c:forEach>	

The Tomcat server returns following error:

java.lang.NumberFormatException: For input string: "${0}"
	java.lang.NumberFormatException.forInputString(NumberFormatException.java:48)
	java.lang.Integer.parseInt(Integer.java:447)
	java.lang.Integer.valueOf(Integer.java:553)
	org.apache.jasper.compiler.JspUtil.coerceToInt(JspUtil.java:752)

It seems to me that Tomcat could not interpret the JSP. 
My question is, do I miss some libraries? Do 
My application runs on Linux Debian, Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_04-b05) (j2sdk1.5-sun).
The taglibs jstl.jar and standard.jar stem from jakarta-taglibs-standard-1.1.2.

Thanks a lot for your help.

Thinh


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