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This exception has no message.
java.lang.NullPointerException: 	at net.sf.hibernate.util.StringHelper.qualify(	at net.sf.hibernate.cfg.Binder.bindComponent(	at net.sf.hibernate.cfg.Binder.bindRootClass(	at net.sf.hibernate.cfg.Binder.bindRoot(	at net.sf.hibernate.cfg.Configuration.add(	at net.sf.hibernate.cfg.Configuration.addInputStream(	at net.sf.hibernate.cfg.Configuration.addResource(	at net.sf.hibernate.cfg.Configuration.doConfigure(	at net.sf.hibernate.cfg.Configuration.doConfigure(	at net.sf.hibernate.cfg.Configuration.configure(	at net.sf.hibernate.cfg.Configuration.configure(	at org.ifmc.qw.hibernate.HibernateSession.init(