[jboss-jira] [JBoss JIRA] Created: (JBAS-4315) Specifiying tag library only by URI picks wrong JSTL core tld

[Wolfgang Knauf (JIRA)]

Specifiying tag library only by URI picks wrong JSTL core tld
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                 Key: JBAS-4315
                 URL: http://jira.jboss.com/jira/browse/JBAS-4315
             Project: JBoss Application Server
          Issue Type: Bug
      Security Level: Public (Everyone can see)
          Components: Web (Tomcat) service
    Affects Versions: JBossAS-4.2.0.CR1
            Reporter: Wolfgang Knauf
         Assigned To: Remy Maucherat


I built a web app (spec 2.5) with JSTL usage. I included the JSTL with these two steps:

1) added jstl.jar from server\default\deploy\jboss-web.deployer to WEB-INF\lib
2) added this to my JSP page:
<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c" %>

I did not add c.tld file to WEB-INF, and I did not add a jsp-config element to web.xml.

I add this to the JSP:
<c:out test="${sessionScope.someVariable}"></c:out>
This results in a JSP compilation error:
org.apache.jasper.JasperException: /index.jsp(14,0) According to the TLD or the tag file, attribute value is mandatory for tag out
	org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:40)
	org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:407)
	org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:236)
	org.apache.jasper.compiler.Validator$ValidateVisitor.visit(Validator.java:802)
...

I finally found that JBoss resolves "c-1_0.tld" which does not allow "rtexprvalue". The problem is that "c.tld" and "c-1_0.tld" have the same URI. 
I think JBoss should look for the highest version matching the requesting web app.
Eclipse WTP 1.5 seems to do this the right way because I do not receive validation errors.


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