Hibernate-Component class not found

Question

I don't understand what is going on here. This is the exception I'm getting:

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)
.
.
.
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

The first block of stack trace is the Hibernate exception and the second block of trace is the relation with my classes.

That class, ConsignacionesId was automatically generated by Hibernate as a multi-attribute ID.

This is my hibernate cfg.xml :

<?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>

And finally, this are my classes generated by Hibernate:

As you can see, ConsignacionesId IS there. Any help is appreciated.

Yes, they did. I found a solution but it doesn't seem very lasting. I added the "modelo" Class Folder to the buildpath and it worked. I have absolutely no idea why this happened. — AFP_555, May 21 '16 at 06:16
No, I posted the initial exception and then the piece of stack trace containing the problem related to my classes. I skipped the internals of Hibernate. — AFP_555, May 21 '16 at 07:48

score 3 · Answer 1 · answered May 22 '16 at 01:24

Ok, I was missing the complete path to my classes inside the hibernate hbm.xml files.

This:

    <?xml version="1.0"?>
    <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
    "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
    <!-- Generated 01-feb-2016 18:51:34 by Hibernate Tools 4.0.0 -->
    <hibernate-mapping>
        <class name="Clientes" table="clientes" schema="public">
            <id name="cliId" type="long">
                <column name="cli_id" precision="10" scale="0" />
                <generator class="assigned" />
            </id>
            <many-to-one name="tiposDocumentos" class=
.
.
.

Had to look like this:

    <?xml version="1.0"?>
    <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
    "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
    <!-- Generated 01-feb-2016 18:51:34 by Hibernate Tools 4.0.0 -->
    <hibernate-mapping>
        <class name="co.edu.icesi.demo.modelo.Clientes" table="clientes" schema="public">
            <id name="cliId" type="long">
                <column name="cli_id" precision="10" scale="0" />
                <generator class="assigned" />
            </id>
            <many-to-one name="tiposDocumentos" class="

.
.
.

So I just pasted "co.edu.icesi.demo.modelo." before all my generated classes, and it worked.

I hope this helps somebody.

This happened because in the "Hibernate Code Generation Cofigurations..." I DID NOT use the field "package".

The "destiny" folder should be only src/main/java.

Don't create the package that will hold your generated classes by yourself. In my case, don't create co.edu.icesi.demo.modelo.

That path goes inside the "package" field of "Hibernate Code Generation Configurations..."

Hibernate-Component class not found

1 Answers1

Linked