Criteria crit = session.createCriteria(table1.class);
crit.setProjection(Projections.distinct(Projections.property("col1")));

Initial SessionFactory creation failed.org.hibernate.MappingException: component class not found: DBClasses.table1
Exception in thread "Thread-4" java.lang.ExceptionInInitializerError
at DBClasses.o.<clinit>(Unknown Source)
at DBClasses.Demo_Packet.b(Unknown Source)
at Integrator.h.run(Unknown Source)
at java.lang.Thread.run(Thread.java:679)
Caused by: org.hibernate.MappingException: component class not found: DBClasses.table1
at org.hibernate.mapping.Component.getComponentClass(Component.java:104)
at org.hibernate.tuple.component.PojoComponentTuplizer.buildGetter(PojoComponentTuplizer.java:133)
at org.hibernate.tuple.component.AbstractComponentTuplizer.<init>(AbstractComponentTuplizer.java:43)
at org.hibernate.tuple.component.PojoComponentTuplizer.<init>(PojoComponentTuplizer.java:38)
at org.hibernate.tuple.component.ComponentEntityModeToTuplizerMapping.<init>(ComponentEntityModeToTuplizerMapping.java:52)
at org.hibernate.tuple.component.ComponentMetamodel.<init>(ComponentMetamodel.java:50)
at org.hibernate.mapping.Component.buildType(Component.java:152)
at org.hibernate.mapping.Component.getType(Component.java:145)
at org.hibernate.mapping.SimpleValue.isValid(SimpleValue.java:253)
at org.hibernate.mapping.RootClass.validate(RootClass.java:193)
at org.hibernate.cfg.Configuration.validate(Configuration.java:1102)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1287)
at org.hibernate.cfg.AnnotationConfiguration.buildSessionFactory(AnnotationConfiguration.java:859)
... 4 more
Caused by: java.lang.ClassNotFoundException: DBClasses.table1
at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
at java.lang.ClassLoader.loadClass(ClassLoader.java:321)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)
at java.lang.ClassLoader.loadClass(ClassLoader.java:266)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:186)
at org.hibernate.util.ReflectHelper.classForName(ReflectHelper.java:100)
at org.hibernate.mapping.Component.getComponentClass(Component.java:101)
... 16 more