JPA problem: Column override on fields

Today I was struggling with WLS 10.3, Workshop 10.3, JPA and Hibernate to get an Entity persistent to a Database. I got the following error:

I used the following code (which was acutally generated by Workshop!):

@Entity()
@Table(name="werknemers")
public class Werknemer implements Serializable {
 //default serial version id, required for serializable classes.
 private static final long serialVersionUID = 1L;
 
 @Id
 private String persNummer; 
 private String emailInternet;
    public Werknemer() {
    }

 @Basic()
 @Column(name="email_internet", nullable=false, length=128)
 public String getEmailInternet() {
  return this.emailInternet;
 }
 public void setEmailInternet(String emailInternet) {
  this.emailInternet = emailInternet;
 }
}

As you can see from the error code the column name "email_internet" (as indicated by @Column) was not taken, but instead the "emailInternet" property was taken.
I could not find the problem, but the following helped. Move the JPA annotation above the private property, like this:

        @Basic()
 @Column(name="email_internet", nullable=false, length=128)
 private String emailInternet;

This solved my problem, but not sure if this is a Hibernate, JPA bug?