i am running it on jboss 7.5
my persistence.xml is :
<?xml version="1.0" encoding="ISO-8859-1"?>
<persistence 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"
version="2.0">
<persistence-unit name="CasPersistence" transaction-type="RESOURCE_LOCAL">
<non-jta-data-source>java:/jboss/InformixDS</non-jta-data-source>
<class>org.jasig.cas.services.RegisteredServiceImpl</class>
<class>org.jasig.cas.ticket.TicketGrantingTicketImpl</class>
<class>org.jasig.cas.ticket.ServiceTicketImpl</class>
<properties>
<property name="hibernate.dialect" value="org.hibernate.dialect.HSQLDialect"/>
</properties>
</persistence-unit>
</persistence>