SEVERE: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in URL [file:/C:/workspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/demoBancoWeb/WEB-INF/classes/applicationContext.xml]: Invocation of init method failed; nested exception is org.hibernate.HibernateException: Unable to instantiate default tuplizer [org.hibernate.tuple.component.PojoComponentTuplizer]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1578)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:545)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
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Caused by: java.lang.ClassNotFoundException: co.edu.icesi.demo.modelo.ConsignacionesId
    at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1305)
    at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1139)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:264)
    at org.hibernate.internal.util.ReflectHelper.classForName(ReflectHelper.java:193)
    at org.hibernate.mapping.Component.getComponentClass(Component.java:138)
    ... 42 more

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
                                         "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
 <session-factory>
  <property name="hibernate.bytecode.use_reflection_optimizer">false</property>
  <property name="hibernate.connection.driver_class">org.postgresql.Driver</property>
  <property name="hibernate.connection.password">admin</property>
  <property name="hibernate.connection.url">jdbc:postgresql://localhost:5432/banco</property>
  <property name="hibernate.connection.username">postgres</property>
  <property name="hibernate.dialect">org.hibernate.dialect.PostgreSQLDialect</property>
  <property name="hibernate.search.autoregister_listeners">false</property>
  <property name="show_sql">true</property>
  <mapping resource="co/edu/icesi/demo/modelo/Clientes.hbm.xml"/>
  <mapping resource="co/edu/icesi/demo/modelo/Cuentas.hbm.xml"/>
  <mapping resource="co/edu/icesi/demo/modelo/TiposUsuarios.hbm.xml"/>
  <mapping resource="co/edu/icesi/demo/modelo/TiposDocumentos.hbm.xml"/>
  <mapping resource="co/edu/icesi/demo/modelo/Consignaciones.hbm.xml"/>
  <mapping resource="co/edu/icesi/demo/modelo/Usuarios.hbm.xml"/>
  <mapping resource="co/edu/icesi/demo/modelo/Retiros.hbm.xml"/>

    <mapping resource="co/edu/icesi/demo/modelo/Consultas.hbm.xml"/>

 </session-factory>
</hibernate-configuration>