The following code only renders an ID of 0

```
@Id
@GeneratedValue(strategy=GenerationType.AUTO, generator="PROJECT_SEQ_GEN")
@SequenceGenerator(name="PROJECT_SEQ_GEN", sequenceName="X.X_PROJECT_SEQ", allocationSize=1)
private long projectId;

```

I tried `SEQUENCE` and `AUTO` but both with the same result. `x_project_seq.nextval` works fine in my Oracle database. I would like to keep using the sequence already defined in the database. 

According to the Getting Started guide by Spring - [Accessing Data with JPA](https://spring.io/guides/gs/accessing-data-jpa/) ...

"The Customer’s `id property is annotated with @Id so that JPA will recognize it as the object’s ID. The id property is also annotated with @GeneratedValue to indicate that the ID should be generated automatically."

From their example it looks like all they did was create `new Customer` and the IDs were automatically generated. What am I missing here?