$Proxy13 cannot be cast to pl.diagno.bo.impl.PersonBOImpl

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">

   <bean id="sessionFactory"
      class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
      <property name="dataSource" ref="dataSource" />

      <property name="annotatedClasses">
         <list>
            <value>pl.diagno.model.vo.City</value>
            <value>pl.diagno.model.vo.Users</value>
            <value>pl.diagno.model.vo.Person</value>
            <value>pl.diagno.model.vo.Permitions</value>
         </list>
      </property>

      <property name="hibernateProperties">
         <props>
            <prop key="show_sql">true</prop>
            <prop key="dialect">org.hibernate.dialect.Oracle10gDialect</prop>
         </props>
      </property>
   </bean>

   <bean id="dataSource"
      class="org.springframework.jdbc.datasource.DriverManagerDataSource">
      <property name="driverClassName" value="oracle.jdbc.driver.OracleDriver" />
      <property name="url" value="jdbc:oracle:thin:@xxx-90ac33161e0:1521:XE" />
      <property name="username" value="diagno" />
      <property name="password" value="1234" />
   </bean>

   <bean id="txManager"
class="org.springframework.orm.hibernate3.HibernateTransactionManager">
      <property name="sessionFactory" ref="sessionFactory" />
   </bean>


   <bean id="transactionProxyBean" abstract="true"
      class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean">
      <property name="transactionManager" ref="txManager" />
      <property name="transactionAttributeSource">
         <bean
            class="org.springframework.transaction.annotation.AnnotationTransactionAttributeSource" />
      </property>
   </bean>

   <!-- DAO BEANS  -->

   <bean id="cityDao" class="pl.diagno.dao.impl.CityDAOImpl">
      <property name="sessionFactory" ref="sessionFactory" />
   </bean>

   <bean id="personDao" class="pl.diagno.dao.impl.PersonDAOImpl">
      <property name="sessionFactory" ref="sessionFactory" />
   </bean>

   <!-- BO BEANS -->

   <bean id="personBo" parent="transactionProxyBean">
      <property name="target">
         <bean class="pl.diagno.bo.impl.PersonBOImpl">
            <property name="personDAO" ref="personDao" />
            <property name="cityDAO" ref="cityDao" />
         </bean>
      </property>
   </bean>

   <bean id="cityBo" parent="transactionProxyBean">
      <property name="target">
         <bean class="pl.diagno.bo.impl.CityBOImpl">
            <property name="cityDAO" ref="cityDao" />
         </bean>
      </property>
   </bean>

</beans>

public class PersonBOImpl implements IPersonBO {
   IPersonDAO personDAO;
   ICityDAO cityDAO;
   
   public PersonBOImpl() {
   }
   
   @Transactional(propagation = Propagation.SUPPORTS)
   public void saveNewPerson(String name, String surname, String city,
         String street, String pesel, Date birthDate, String sex, boolean isClient, boolean isMember, Users users) {
      
      City cityToSave;
      
      List<City> cityList = cityDAO.find("from City c where name = ?", city);
         long id = ((City)cityList.get(0)).getId();
         cityToSave = cityDAO.load(id);
      
         personDAO.save(new Person(name, surname, cityToSave, street, pesel, birthDate, sex, isClient, isMember, users));
   }
   
   public IPersonDAO getPersonDAO() {
      return personDAO;
   }
   public void setPersonDAO(IPersonDAO personDAO) {
      this.personDAO = personDAO;
   }
   public ICityDAO getCityDAO() {
      return cityDAO;
   }
   public void setCityDAO(ICityDAO cityDAO) {
      this.cityDAO = cityDAO;
   }
}

<bean id="personBo" class="pl.diagno.bo.impl.PersonBOImpl"> <!-- autowire="byName" -->
            <property name="sessionFactory" ref="sessionFactory" />
            <property name="personDAO" ref="personDao" />
            <property name="cityDAO" ref="cityDao" />
</bean>

<property name="proxyTargetClass">
<value>true</value>
</property>