BeanCreationException: Error creating bean with name 'authenticationProcessingShibbolethFilter

[DimitriMiranda]

Hi
i'm trying the use crowd-shibboleth-module and i'm having
the error:

Cannot resolve reference to bean 'authenticationProcessingShibbolethFilter' while setting constructor argument with key [4]; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'authenticationProcessingShibbolethFilter': Lookup method resolution failed; nested exception is java.lang.IllegalStateException: Failed to introspect Class [net.nordu.crowd.shibboleth.ShibbolethSSOFilter]

an someone help me ?
thanks