attribute release in protocol 2.0

When using the 2.0 jsp protocol,
for the service registry component of CAS, if I specify attributes in its list of allowed attributes (allowedAttributes), CAS doesn't return the values of the configured attributes but still return the full list described in the resultAttributeMapping.

When using the 3.0 jsp protocol, the allowedAttributes will be taken into consideration !!

Replacing the casServiceValidationSuccess.jsp for 2.0 by 3.0 solved the problem

deployerConfigContext.xml :

<bean id="attributeRepository"
...
<property name="resultAttributeMapping">
<map>
<entry key="uid" value="uid" />
<entry key="mail" value="mail" />
<entry key="displayName" value="displayName" />
<entry key="givenName" value="givenName" />
<entry key="sn" value="sn" />
</map>
</property>
----------- <bean id="serviceRegistryDao"
...
<bean class="org.jasig.cas.services.RegisteredServiceImpl">
<property name="id" value="0" />
<property name="name" value="TESTPROXY" />
<property name="description" value="test proxy" />
<property name="serviceId" value="https://xxxx.xx.php" />
<property name="allowedAttributes">
<list>
<value>uid</value>
<value>mail</value>
</list>
</property>
<property name="allowedToProxy" value="true" />
</bean>