Problema con metodi in Restful service

[fermat]

ciao!

in un servizio restful ho aggiunto un metodo, e da quel momento ottengo questo errore:

Grave:   Exception while loading the app
Grave:   Undeployment failed for context /wsb2b
Informazioni:   file:/E:/Project/JAVA/WSB2B/build/web/WEB-INF/classes/_WSB2BPU logout successful
Grave:   Exception while loading the app : java.lang.IllegalStateException: ContainerBase.addChild: 
start: org.apache.catalina.LifecycleException: org.apache.catalina.LifecycleException: 
org.glassfish.jersey.server.model.ModelValidationException: Validation of the application resource model has failed during application initialization.
[[FATAL] A resource model has ambiguous (sub-)resource method for HTTP method GET and input mime-types 
as defined by @Consumes and @Produces annotations at Java methods public com.cimoda.entities.CrClienti
 com.cimoda.service.CrClientiFacadeREST.find(java.lang.Integer) and public java.util.List 
 com.cimoda.service.CrClientiFacadeREST.findCl(java.lang.String) at matching regular expression
 /([^/]+?). These two methods produces and consumes exactly the same mime-types and therefore 
 their invocation as a resource methods will always fail.; source='org.glassfish.jersey.server.model.RuntimeResource@4f3f5b95']

i metodi incriminati sono questi:

    @GET
    @Path("{id}")
    @Produces({"application/xml", "application/json"})
    public CrClienti find(@PathParam("id") Integer id) {
        return super.find(id);
    }

    @GET
    @Path("{cl}")
    @Produces({"application/xml", "application/json"})
    @Override
    public List<CrClienti> findCl(@PathParam("cl") String cl) {
        return super.findCl(cl);
    }

ma sinceramente non riesco a capire!

[fermat]

leggendo qua e la penso di aver capito il problema ed ho fatto una modifica in questo modo:

    @GET
    @Path("{id}")
    @Produces({"application/xml", "application/json"})
    public CrClienti find(@PathParam("id") Integer id) {
        return super.find(id);
    }

    @GET
    @Path("/tipo_utente/{type}")
    @Produces({"application/xml", "application/json"})
    @Override
    public List<CrClienti> findCl(@PathParam("type") String type) {
        return super.findCl(type);
    }

adesso però ottengo un altro errore:

Grave:   Exception while loading the app
Grave:   Undeployment failed for context /wsb2b
Informazioni:   file:/E:/Project/JAVA/WSB2B/build/web/WEB-INF/classes/_WSB2BPU logout successful
Grave:   Exception while loading the app : java.lang.IllegalStateException: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: org.apache.catalina.LifecycleException: java.lang.NullPointerException

qualche idea??

[fermat]

build&clean e tutto risolto.
ciao!