HV000030: No validator could be found for type: java.lang.Integer
That will happen when you use JSR303 bean validation in flavor of Hibernate Validator and you have in your JPA entity the Hibernate-specific @NotEmpty on an Integer property like this:
@NotEmpty
private Integer some;
This is completely wrong. An integer cannot be considered as a string, collection, map or array. Use the standard @NotNull instead.
@NotNull
private Integer some;
Please note that the concrete problem is completely unrelated to JSF. In the future, please learn how to exclude as much as possible noise and naildown the concrete problem by e.g. executing the JPA code individually. JSF is merely the HTTP/MVC messenger here and PrimeFaces is merely the HTML/CSS/jQuery/UI code generator.