errors at build time with netbeans 8.0.1 and tomee 1.7 plus

ant -f /home/utente_javaee7/NetBeansProjects/ptrovacanc -Dnb.internal.action.name=build -DforceRedeploy=false -Dbrowser.context=/home/utente_javaee7/NetBeansProjects/ptrovacanc dist
init:
deps-module-jar:
deps-ear-jar:
deps-jar:
Created dir: /home/utente_javaee7/NetBeansProjects/ptrovacanc/build/web/WEB-INF/classes
Created dir: /home/utente_javaee7/NetBeansProjects/ptrovacanc/build/web/META-INF
Copying 1 file to /home/utente_javaee7/NetBeansProjects/ptrovacanc/build/web/META-INF
Created dir: /home/utente_javaee7/NetBeansProjects/ptrovacanc/build/web/WEB-INF/classes/META-INF
Copying 1 file to /home/utente_javaee7/NetBeansProjects/ptrovacanc/build/web/WEB-INF/classes/META-INF
Copying 21 files to /home/utente_javaee7/NetBeansProjects/ptrovacanc/build/web
library-inclusion-in-archive:
library-inclusion-in-manifest:
Created dir: /home/utente_javaee7/NetBeansProjects/ptrovacanc/build/empty
Created dir: /home/utente_javaee7/NetBeansProjects/ptrovacanc/build/generated-sources/ap-source-output
Compiling 11 source files to /home/utente_javaee7/NetBeansProjects/ptrovacanc/build/web/WEB-INF/classes
/home/utente_javaee7/NetBeansProjects/ptrovacanc/src/java/mauro/ejbs/AbstractFacade.java:42: warning: [unchecked] unchecked call to <X>from(Class<X>) as a member of the raw type AbstractQuery
        cq.select(cq.from(entityClass));
  where X is a type-variable:
    X extends Object declared in method <X>from(Class<X>)
/home/utente_javaee7/NetBeansProjects/ptrovacanc/src/java/mauro/ejbs/AbstractFacade.java:42: warning: [unchecked] unchecked call to select(Selection<? extends T>) as a member of the raw type CriteriaQuery
        cq.select(cq.from(entityClass));
  where T is a type-variable:
    T extends Object declared in interface CriteriaQuery
/home/utente_javaee7/NetBeansProjects/ptrovacanc/src/java/mauro/ejbs/AbstractFacade.java:43: warning: [unchecked] unchecked method invocation: method createQuery in interface EntityManager is applied to given types
        return getEntityManager().createQuery(cq).getResultList();
  required: CriteriaQuery<T>
  found: CriteriaQuery
  where T is a type-variable:
    T extends Object declared in method <T>createQuery(CriteriaQuery<T>)
/home/utente_javaee7/NetBeansProjects/ptrovacanc/src/java/mauro/ejbs/AbstractFacade.java:43: warning: [unchecked] unchecked conversion
        return getEntityManager().createQuery(cq).getResultList();
  required: CriteriaQuery<T>
  found:    CriteriaQuery
  where T is a type-variable:
    T extends Object declared in method <T>createQuery(CriteriaQuery<T>)
/home/utente_javaee7/NetBeansProjects/ptrovacanc/src/java/mauro/ejbs/AbstractFacade.java:43: warning: [unchecked] unchecked conversion
        return getEntityManager().createQuery(cq).getResultList();
  required: List<T>
  found:    List
  where T is a type-variable:
    T extends Object declared in class AbstractFacade
/home/utente_javaee7/NetBeansProjects/ptrovacanc/src/java/mauro/ejbs/AbstractFacade.java:48: warning: [unchecked] unchecked call to <X>from(Class<X>) as a member of the raw type AbstractQuery
        cq.select(cq.from(entityClass));
  where X is a type-variable:
    X extends Object declared in method <X>from(Class<X>)
/home/utente_javaee7/NetBeansProjects/ptrovacanc/src/java/mauro/ejbs/AbstractFacade.java:48: warning: [unchecked] unchecked call to select(Selection<? extends T>) as a member of the raw type CriteriaQuery
        cq.select(cq.from(entityClass));
  where T is a type-variable:
    T extends Object declared in interface CriteriaQuery
/home/utente_javaee7/NetBeansProjects/ptrovacanc/src/java/mauro/ejbs/AbstractFacade.java:49: warning: [unchecked] unchecked method invocation: method createQuery in interface EntityManager is applied to given types
        javax.persistence.Query q = getEntityManager().createQuery(cq);
  required: CriteriaQuery<T>
  found: CriteriaQuery
  where T is a type-variable:
    T extends Object declared in method <T>createQuery(CriteriaQuery<T>)
/home/utente_javaee7/NetBeansProjects/ptrovacanc/src/java/mauro/ejbs/AbstractFacade.java:49: warning: [unchecked] unchecked conversion
        javax.persistence.Query q = getEntityManager().createQuery(cq);
  required: CriteriaQuery<T>
  found:    CriteriaQuery
  where T is a type-variable:
    T extends Object declared in method <T>createQuery(CriteriaQuery<T>)
/home/utente_javaee7/NetBeansProjects/ptrovacanc/src/java/mauro/ejbs/AbstractFacade.java:52: warning: [unchecked] unchecked conversion
        return q.getResultList();
  required: List<T>
  found:    List
  where T is a type-variable:
    T extends Object declared in class AbstractFacade
/home/utente_javaee7/NetBeansProjects/ptrovacanc/src/java/mauro/ejbs/AbstractFacade.java:57: warning: [unchecked] unchecked call to <X>from(Class<X>) as a member of the raw type AbstractQuery
        javax.persistence.criteria.Root<T> rt = cq.from(entityClass);
  where X is a type-variable:
    X extends Object declared in method <X>from(Class<X>)
/home/utente_javaee7/NetBeansProjects/ptrovacanc/src/java/mauro/ejbs/AbstractFacade.java:57: warning: [unchecked] unchecked conversion
        javax.persistence.criteria.Root<T> rt = cq.from(entityClass);
  required: Root<T>
  found:    Root
  where T is a type-variable:
    T extends Object declared in class AbstractFacade
/home/utente_javaee7/NetBeansProjects/ptrovacanc/src/java/mauro/ejbs/AbstractFacade.java:58: warning: [unchecked] unchecked call to select(Selection<? extends T>) as a member of the raw type CriteriaQuery
        cq.select(getEntityManager().getCriteriaBuilder().count(rt));
  where T is a type-variable:
    T extends Object declared in interface CriteriaQuery
/home/utente_javaee7/NetBeansProjects/ptrovacanc/src/java/mauro/ejbs/AbstractFacade.java:59: warning: [unchecked] unchecked method invocation: method createQuery in interface EntityManager is applied to given types
        javax.persistence.Query q = getEntityManager().createQuery(cq);
  required: CriteriaQuery<T>
  found: CriteriaQuery
  where T is a type-variable:
    T extends Object declared in method <T>createQuery(CriteriaQuery<T>)
/home/utente_javaee7/NetBeansProjects/ptrovacanc/src/java/mauro/ejbs/AbstractFacade.java:59: warning: [unchecked] unchecked conversion
        javax.persistence.Query q = getEntityManager().createQuery(cq);
  required: CriteriaQuery<T>
  found:    CriteriaQuery
  where T is a type-variable:
    T extends Object declared in method <T>createQuery(CriteriaQuery<T>)
15 warnings
Copying 1 file to /home/utente_javaee7/NetBeansProjects/ptrovacanc/build/web/WEB-INF/classes
compile:
compile-jsps:
Created dir: /home/utente_javaee7/NetBeansProjects/ptrovacanc/dist
Building jar: /home/utente_javaee7/NetBeansProjects/ptrovacanc/dist/ptrovacanc.war
do-dist:
dist:
BUILD SUCCESSFUL (total time: 2 seconds)