freemarker.runtime - Template processing error: "No mapping defined for http://www.springframework.org/security/tags" - tags

Question

Spring-security:3.0.2
Freemarker:2.3.19
I want to use springSecurity tags in freemarker, but it throws this errors:
[16 14:10:46,349 ERROR] [btpool0-0] freemarker.runtime - Template processing error: "No mapping defined for http://www.springframework.org/security/tags"
No mapping defined for http://www.springframework.org/security/tags
The problematic instruction:
==> assignment: security=JspTaglibs["http://www.springframework.org/security/tags"] [on line 1, column 1 in macro/header.ftl]
in user-directive page.bodytemplate [on line 6, column 1 in items.ftl]
ftl:
<#assign security=JspTaglibs["http://www.springframework.org/security/tags"] />
pom.xml
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-taglibs</artifactId>
<version>3.0.2.RELEASE</version>
</dependency>

Answer 1

if the problems happen with tomcat7-maven-plugin and not with jetty-maven-plugin you most likely suffer from the not fully initialized servlet context of tomcat7.
Instead of "tomcat:run", do "tomcat:run-war"
the latter makes sure that your web app is (almost) fully being build and bootstrapped, like having jars in /WEB-INF/libs. freemarker's scanning logic for tlds will work like a charm.

Answer 2

It seems like a tag library which you want to download contains the tag org.springframework.security.taglibs.authz.AclTag.
The last version of Spring Security taglibs (which had this class) was the 2.0.7 release, hence the problem.
You can change you spring to 2.0 version. Or you can download security.tld from https://src.springframework.org/svn/spring-security/branches/spring-2.5-integration-branch/taglibs/src/main/resources/META-INF/security.tld and use it on freemarker template like this: <#assign security=JspTaglibs["/WEB-INF/tlds/security.tld"] />
By the way I really don't understand why http://www.springframework.org/security/tags doesn't work... I have tried to use it like you, and I have faced the same issue.

Answer 3

I encountered this error when switched to run-jetty-run maven module.
Module jetty:run didn't had this error.
This helped me:
Download spring-security.tld file and put it in webapp/WEB-INF/tld folder
Add this code to web.xml:
<jsp-config>
<taglib>
<taglib-uri>http://www.springframework.org/security/tags</taglib-uri>
<taglib-location>/WEB-INF/tld/spring-security.tld</taglib-location>
</taglib>
</jsp-config>

Answer 4

The reason why this doesn't work has to do with the Servlet container (and maybe the spec). If you're associating taglibs by the namespace it will only do that automatically if the JAR is in the WEB-INF/lib folder.
If you move the spring-security-taglibs.jar into the WEB-INF/lib folder, it will work.