I run sql statement "SELECT * FROM company" on oracle Thin 11 g and it returns 3 rows.

I have configured the data source correctly and tried Query as well Criteria as follows and all of them return nothing even if they should return 3 rows. //import org.hibernate.Criteria;

1. Criteria

 Criteria criteria = session.createCriteria(Company.class);
            criteria
                     .add(Restrictions.eq("companyName", companyName))
                     .add(Restrictions.eq("companyId", companyId));

List<Company> companyList  = criteria.list();//**THIS RETURNS 0 ROWS**

2. QUERY

Query query=session.createQuery("from Company where companyName= :companyName and companyId= :companyId");

           query.
                   setParameter("companyId",companyId).
                   setParameter("companyName", companyName);

List<Company> companyList  = query.list();//**THIS RETURNS 0 ROWS**

3.SQL in Query

Query query=session.createSQLQuery("SELECT * FROM Company");
List<Company> CompanyList  = query.list();//**THIS RETURNS 0 ROWS**

Here Company Entity

//javax.persistence.*;

@Entity
@Table(name = "COMPANY")
public class Company {

    @Id
    @GeneratedValue(strategy= GenerationType.SEQUENCE, generator="COMPANY_SEQ")
    @SequenceGenerator(name="COMPANY_SEQ", sequenceName="COMPANY_SEQ",   allocationSize=1)
    @Column(name = "COMPANY_ID")
    int CompanyId;

    @Basic
    @Column (name ="COMPANY_NAME")
    private String companyName;


    @Basic
    @Column (name ="COMPANY_ID")
    private Integer companyId;// The login id of user whose data is updated

    @Basic
    @Column (name ="UPDATED_BY")
    private String updatedBy;

    @Basic
    @Column (name ="UPDATE_DATE")
    private Date updateDate;

     //Default no-arg constructor and another constructor with all the fields.
    //default getters and Setters
}

What am I missing and why is not all the hibernate queries not returning the rows? I appreciate your help.