Error in applicationContext-security.xml

My 1st xml file applicationContext-security.xml:

<?xml version="1.0" encoding="UTF-8"?>
<b:beans xmlns="http://www.springframework.org/schema/security"
xmlns:b="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
                    http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security-3.0.xsd">
<http auto-config="true">

    <intercept-url pattern="/admin/*" access="ROLE_ADMINISTRADOR" />
    <intercept-url pattern="/restrito/*" access="ROLE_USUARIO" />
    <form-login login-page="/publico/login.jsf"
        always-use-default-target="true" default-target-url="/restrito/principal.jsf"
        authentication-failure-url="/publico/login.jsf?login_error=1" />
    <logout/>
    <remember-me />
</http>

<authentication-manager>
    <authentication-provider>
        <jdbc-user-service data-source-ref="financeiroDataSource"
            authorities-by-username-query="SELECT u.login, p.permissao 
                                         FROM usuario u, usuario_permissao p 
                                        WHERE u.codigo = p.usuario 
                                          AND u.login = ?"
            users-by-username-query="SELECT login, senha, ativo 
                                   FROM usuario 
                                  WHERE login = ?" />
    </authentication-provider>
</authentication-manager>
</b:beans>

And you have this other applicationContext.xml:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">
<bean id="financeiroDataSource" class="org.springframework.jndi.JndiObjectFactoryBean">
    <property name="jndiName">
        <value>java:comp/env/jdbc/FinanceiroDB</value>
    </property>
</bean>     
</beans>

Everyone is in the WEB-INFO folder.

There are errors in the tomcat log:

1st

GRAVE: Context initialization failed org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: Unable to locate Spring NamespaceHandler for XML schema namespace [ link / a> Offending resource: ServletContext resource [/WEB-INF/applicationContext-security.xml]

2nd

Sep 09, 2014 9:47:18 PM org.apache.catalina.core.StandardContext listenerStart SERIOUS: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: Unable to locate Spring NamespaceHandler for XML schema namespace [ link / a> Offending resource: ServletContext resource [/WEB-INF/applicationContext-security.xml]

My libs:

spring-2.5.6.jar
spring-security-cas-3.1.0.RELEASE.jar
spring-security-core-3.1.0.RELEASE.jar
spring-security-openid-3.1.0.RELEASE.jar
spring-security-remoting-3.1.0.RELEASE.jar
spring-security-samples-contacts-3.0.2.RELEASE-sources.jar
spring-security-samples-tutorial-3.0.2.RELEASE-sources.jar