JBoss - Persistence JPA hibernate

[faber81]

Hi,

i'm developed a application web with hibernate JPA, Jboss 6, Mysql, but I get the following error:

Error installing to Start: name=persistence.unit:unitName=XXXXXXXXXXXXXX#XXXXXXXX state=Create: java.lang.ClassCastException: org.hibernate.type.StringType cannot be cast to org.hibernate.type.VersionType

My persistence.xml

<?xml version="1.0" encoding="UTF-8"?>

<persistence version="2.0"

          xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

          xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">

          <persistence-unit name="XXXXXXXXX" transaction-type="RESOURCE_LOCAL">

                    <provider>org.hibernate.ejb.HibernatePersistence</provider>

                    <non-jta-data-source>java:XXXXXXXXX</non-jta-data-source>

                    <class>...............................</class>

          <class>...............................</class>

                    <properties>

                              <!-- DATA SOURCE -->

                              <property name="hibernate.connection.datasource" value="java:datasouce" />

               <!-- DIALECT-->

                                <property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect" />

                               <!-- CATALOG -->

                              <property name="hibernate.default_catalog" value="db"/>

                    </properties>

          </persistence-unit>

</persistence>

My datasource is into the folder C:\jboss-6.0.0.Final\server\default\deploy

Thank.

[wdfink]

Maybe you have wrong annotations in your entity.

Could you localize the entity?

Maybe it helps if you enable 'org.hibernate' logging TRACE.

[faber81]

In my entity I had a field "version" that generates an annotation @version.

I solved by changing that.

Thanks

Now I'm trying to solve this error

ERROR [org.apache.catalina.core.ContainerBase. [Jboss.web]. [Localhost]. [/VmcSmartServer]. [RESTEasy]] Servlet.service () for servlet RESTEasy Threwexception: org.jboss.resteasy.spi. UnhandledException:java.lang.ClassCastException: $ $vmc.webapp.server.persistence.base.bean.Group_ _javassist_32 can not be cast tojavassist.util.proxy.ProxyObject.

Any idea what could be?

[wdfink]

No, not my part

But you might close the issue here because you get quicker an answer in the correct forum.

[faber81]

For information this error is generated from the file that is inside jBoss javaassit.jar.

In a Maven project, just enter

<exclusion>

<artifactId> javassist </ artifactId>

<groupId> javassist </ groupId>

</ exclusion>

or overwrite the jar