java.lang.NoClassDefFoundError: com/mchange/v2/c3p0/DataSources
   at org.hibernate.connection.C3P0ConnectionProvider.configure(C3P0ConnectionProvider.java:154)
   at org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:124)
   at org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:56)
   at org.hibernate.cfg.SettingsFactory.createConnectionProvider(SettingsFactory.java:414)
   at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:62)
   at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2009)
   at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1292)
   at org.hibernate.cfg.AnnotationConfiguration.buildSessionFactory(AnnotationConfiguration.java:859)
   at org.netbeans.modules.hibernate.hqleditor.HQLEditorController.getHibernateSessionFactoryForThisContext(HQLEditorController.java:234)
   at org.netbeans.modules.hibernate.hqleditor.HQLEditorController.processAndConstructSessionFactory(HQLEditorController.java:325)
   at org.netbeans.modules.hibernate.hqleditor.ui.HQLEditorTopComponent$ParseHQL.run(HQLEditorTopComponent.java:319)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1957)