org.hibernate.MappingException: Repeated column in mapping for entity: ch.btc.datec.yamina.model.TypeAffaire column: typeCode (should be mapped with insert="fal
se" update="false")

@Entity
@Inheritance(strategy=InheritanceType.SINGLE_TABLE)
@DiscriminatorColumn(
    name="typeCode",
    discriminatorType=DiscriminatorType.STRING
)
public class Code implements Serializable{

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name = "ID")
    private long id;
   
    @Column(name = "typeCode", length = 3, nullable = true)
    private String typeCode;
   
    @Column(name = "code", length = 50, nullable = true)
    private String code;
   
    @Column(name = "libCourtFR", length = 20, nullable = true)
    private String libelleCourtFr;
   
    @Column(name = "libCourtDE", length = 20, nullable = true)
    private String libelleCourtDe;
   
    @Column(name = "libLongFR", length = 20, nullable = true)
    private String libelleLongFr;
   
    @Column(name = "libLongDE", length = 20, nullable = true)
    private String libelleLongDe;

    /**
     * Constructor
     */
    public Code () {
       
    }

    public long getId() {
        return id;
    }

    public void setId(long id) {
        this.id = id;
    }

    public String getTypeCode() {
        return typeCode;
    }

    public void setTypeCode(String typeCode) {
        this.typeCode = typeCode;
    }

    public String getCode() {
        return code;
    }

    public void setCode(String code) {
        this.code = code;
    }

    public String getLibelleCourtFr() {
        return libelleCourtFr;
    }

    public void setLibelleCourtFr(String libelleCourtFr) {
        this.libelleCourtFr = libelleCourtFr;
    }

    public String getLibelleCourtDe() {
        return libelleCourtDe;
    }

    public void setLibelleCourtDe(String libelleCourtDe) {
        this.libelleCourtDe = libelleCourtDe;
    }

    public String getLibelleLongFr() {
        return libelleLongFr;
    }

    public void setLibelleLongFr(String libelleLongFr) {
        this.libelleLongFr = libelleLongFr;
    }

    public String getLibelleLongDe() {
        return libelleLongDe;
    }

    public void setLibelleLongDe(String libelleLongDe) {
        this.libelleLongDe = libelleLongDe;
    }
     /* (non-Javadoc)
     *
     * @see java.lang.Object#equals(java.lang.Object)
     */
    @Override
    public boolean equals(Object obj) {
        return EqualsBuilder.reflectionEquals(this, obj);
    }

    /*
     * (non-Javadoc)
     *
     * @see java.lang.Object#equals(java.lang.Object)
     */
    @Override
    public int hashCode() {
        return HashCodeBuilder.reflectionHashCode(this);
    }

    /*
     * (non-Javadoc)
     *
     * @see java.lang.Object#equals(java.lang.Object)
     */
    @Override
    public String toString() {
        return ToStringBuilder.reflectionToString(this);
    }

@Entity
@DiscriminatorValue("TRT")
public class TypeAffaire extends Code implements Serializable {

    /**
     * Constructor
     */
    public TypeAffaire () {
       
    }

}