no persistent classes found for query class

[Esil2008]

ok, i think this is the problem, because in this code

<property name="mappingResources">
		<list>
			<value>com/pia/agp/mapping/Intervenant.hbm.xml</value>
		</list>
		</property>

i have just Intervenant.hbm.xml, so i think ,i must add all the hbm files her.
i will I keep you informed
thanks

[Esil2008]

finally, in works now,
thank you very much Andrei for your help. we say Merci in french