Caused by: org.hibernate.MappingException: Could not determine type for: com.xxx.Organization, at table: usr, for columns: [org.hibernate.mapping.Column(org)]
   at org.hibernate.mapping.SimpleValue.getType(SimpleValue.java:292)
   at org.hibernate.mapping.SimpleValue.isValid(SimpleValue.java:276)
   at org.hibernate.mapping.Property.isValid(Property.java:207)
   at org.hibernate.mapping.PersistentClass.validate(PersistentClass.java:458)
   at org.hibernate.mapping.RootClass.validate(RootClass.java:215)
   at org.hibernate.cfg.Configuration.validate(Configuration.java:1149)
   at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1334)
   at org.hibernate.cfg.AnnotationConfiguration.buildSessionFactory(AnnotationConfiguration.java:867)
   at org.springframework.orm.hibernate3.LocalSessionFactoryBean.newSessionFactory(LocalSessionFactoryBean.java:855)
   at org.springframework.orm.hibernate3.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:774)
   at org.springframework.orm.hibernate3.AbstractSessionFactoryBean.afterPropertiesSet(AbstractSessionFactoryBean.java:211)
   at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1460)
   at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1400)

@Entity
@Table(name="usr")
@Cache(usage = CacheConcurrencyStrategy.NONSTRICT_READ_WRITE)
public class User extends TimestampedPersistentObject {
   private String orgCode;
   private String loginId;
   private String password;
   private Organization org;

   @Column(name="org_code")
   public String getOrgCode() {
      return orgCode;
   }
   public void setOrgCode(final String orgCode) {
      this.orgCode = orgCode;
   }

   @Column
   public String getLoginId() {
      return loginId;
   }
   public void setLoginId(final String loginId) {
      this.loginId = loginId;
   }

   @Column
   public String getPassword() {
      return password;
   }
   public void setPassword(final String password) {
      this.password = password;
   }

   @ManyToOne(cascade = {CascadeType.PERSIST, CascadeType.MERGE})
    @JoinColumn(name = "org_id")
   public Organization getOrg() {
        return org;
    }
    public void setOrg(Organization org) {
        this.org = org;
    }
}

@Entity
@Table(name="organization")
@Cache(usage = CacheConcurrencyStrategy.NONSTRICT_READ_WRITE)
public class Organization extends TimestampedPersistentObject {
    private String code;
    private String name;

    @Column
    public String getCode() {
        return code;
    }
    public void setCode(String code) {
        this.code = code;
    }
   
    @Column
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
}

@MappedSuperclass
public class TimestampedPersistentObject implements PersistentObject {
    @Id
    private String id;
    @Version
    private int version;
    /**
     * Returns a generated GUID
     */
    public String getId() {
        return GUIDGenerator.getInstance().getGUID();
    }

    /**
     * @see com.ks.gwm.pojo.PersistentObject#getVersion()
     */
    public int getVersion() {
        return version;
    }
}

   <bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean"
         p:dataSource-ref="dataSource">
      <property name="hibernateProperties">
         <props>
            <prop key="hibernate.dialect">${hibernate.dialect}</prop>
            <prop key="hibernate.show_sql">${hibernate.show_sql}</prop>
            <prop key="hibernate.generate_statistics">${hibernate.generate_statistics}</prop>
                <prop key="hibernate.use_outer_join">true</prop>
                <prop key="hibernate.default_lazy">true</prop>
                <prop key="hibernate.cache.provider_class">org.hibernate.cache.EhCacheProvider</prop>
                <prop key="hibernate.cache.use_query_cache">true</prop>
                <prop key="hibernate.cache.use_second_level_cache">true</prop>
         </props>
      </property>
        <property name="packagesToScan">
          <list>
              <value>com.xxx.**.*</value>
          </list>
      </property>
   </bean>