IncompatibleClassChangeError: class org.hibernate.cfg.ExtendedMappings has interface org.hibernate.cfg.Mapping

Bonjour,

Je suis débutant sur un développement Java/Hibernate, j'ai une classe User.java dont la suivante :

Code:

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@SuppressWarnings("serial")
@Entity
@Table (name="user")
public class User implements UserDetails, java.io.Serializable {
 
	protected static String ROLE_ADMIN = "TMD_ADMIN";
	protected static String ROLE_DEV   = "TMD_DEV";
	protected static String ROLE_CLIENT = "TMD_CLIENT";
 
	@Id
	@Column (name="code")
	private String code;
	@Column (name="password")
	private String password;
	@Column (name="fullname")
	private String fullname;
	@Column (name="email")
	private String email;
	@Column (name="version")
	private Integer version;
 
	private Set<String> roles = new HashSet<String>(0);
 
 
	public User() {}
 
	public User(String code,String password) {
		this.code = code;
		this.password = password;
	}
 
	public User(String code,String password,String fullname) {
		this.code = code;
		this.password = password;
		this.fullname = fullname;
	}
 
 
	/*
	 * Les getters et les setters
	 */
 
	public String getCode() {
		return this.code;
	}
 
	public String getPassword() {
		return this.password;
	}
 
	public String getFullname() {
		return this.fullname;
	}
 
	public String getEmail() {
		return this.email;
	}
 
	public Integer getVersion() {
		return this.version;
	}
 
	public Set<String> getRoles() {
 
		return this.roles;
	}
 
	public void setCode(String code) {
		this.code = code;
	}
 
	public void setPassword(String password) {
		this.password = password;
	}
 
	public void setFullname(String fullname) {
		this.fullname = fullname;
	}
 
	public void setEmail(String email) {
		this.email = email;
	}
 
	public void setVersion(Integer version) {
		this.version = version;
	}
 
	public void setRoles(Set<String> roles) {
		this.roles = roles;
	}
 
 
 
	@Override
	public Collection<GrantedAuthority> getAuthorities() {
 
		List<GrantedAuthority> grantedAuthority = new ArrayList<GrantedAuthority>(roles.size());
 
		for(String role : roles){
			grantedAuthority.add(new GrantedAuthorityImpl(role));
		}
 
		return grantedAuthority;
	}
 
	@Override
	public String getUsername() {
		// TODO Auto-generated method stub
		return code;
	}
 
	@Override
	public boolean isAccountNonExpired() {
		// TODO Auto-generated method stub
		return true;
	}
 
	@Override
	public boolean isAccountNonLocked() {
		// TODO Auto-generated method stub
		return true;
	}
 
	@Override
	public boolean isCredentialsNonExpired() {
		// TODO Auto-generated method stub
		return true;
	}
 
	@Override
	public boolean isEnabled() {
		// TODO Auto-generated method stub
		return true;
	}
 
	public boolean hasRole(String role) {
 
		for(String r : roles){
			if(r.equals(role))
				return true;
		}
		return false;
	}
 
	public int hashCode() {
		return (code != null ? code.hashCode() : 0);
	}
 
	public boolean equals(Object o) {
		if(this == o) return true;
		if(!(o instanceof User)) return false;
 
		final User user = (User) o;
		if(code != null ? !code.equals(user.getCode()) : user.getCode() !=null) return false;
 
		return true;
	}
}

et j'ai ainsi mon fihier user.hbm.xml :

Code:

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<hibernate-mapping>
    <class name="fr.cs.tma.model.User" table="USER">
        <id name="code" type="java.lang.String">
        	<column name="CODE"/>
        	<generator class="assigned" />
        </id>
        <property name="password" type="java.lang.String">
            <column name="PASSWORD" />
        </property>
        <property name="fullname" type="java.lang.String">
            <column name="FULLNAME" />
        </property>
        <property name="email" type="java.lang.String">
            <column name="EMAIL" />
        </property>
        <property name="version" type="java.lang.Integer">
            <column name="VERSION" />
        </property>
 
        <set name="roles" table="ROLE" inverse="false" lazy="true">
            <key>
                <column name="CODE" />
            </key>
            <element type="java.lang.String">
                <column name="ROLE" />
            </element>
        </set>
    </class>
</hibernate-mapping>

Et à l'exécution, j'ai l'erreur suivante :

Citation:

Error creating bean with name 'sessionFactory' defined in class path resource [applicationContext.xml]: Invocation of init method failed; nested exception is java.lang.IncompatibleClassChangeError: class org.hibernate.cfg.ExtendedMappings has interface org.hibernate.cfg.Mappings as super class

Sincèrement, je ne comprends vraiment pas le problème s'il s'agit d'un problème de mappage comment pourrai-je le corriger ? Des explications ou des solutions sont les bienvenues :roll:

MERCI