JPA exception: Object: … is not a known entity type

Question

I\'m new to JPA and I\'m having problems with the autogeneration of primary key values.

I have the following entity:

package jpatest.entities;

impor         


        

Answer 1

I use this syntax rather than type AUTO

@javax.persistence.Id
@javax.persistence.GeneratedValue(strategy = GenerationType.IDENTITY)

Then, I use the simple type "long" for ID's with a lowercase l :

private long taskID;

This may be unrelated, but I also specify a different table name for my entities:

@javax.persistence.Entity(name = "Tasks")
public class Task implements Serializable