I use eclipse-SDK-3.1M4-win32 、hibernate-tools-3.0alpha1 and org.jboss.ide.eclipse_1.4.0.bin.dist.And I create a project according to Hibernate-tools demo,but I use oracle8.7,I add src and lib folder and add class12.jar in project.I can create Hibernate.cfg.xml and Console Configuration,but when I create Console Artifact Generation,it promated "Reasib:org.hibernate.exception.GenericJDBCException:Reading from database".

I can't find my error ,who can help me?

please read all the other postings about this... ;)

And then go look in Error Log View where you can see the full stack trace on what happend.

My guess is that you are rev.eng. the whole database because you havent set default schema in hibernate.cfg.xml.

Maybe you have some schema on the oracle database,If so,this error will appear,
you can add this to the hibernate.cfg.xml file

<property name="hibernate.default_schema">[your schema name]</property>


maybe solve it !