2014 last day, so annoying! This problem has never been encountered! A lot of solutions have been found online! And no wifi !, 2014 wifi

2014 last day, so annoying! This problem has never been encountered! A lot of solutions have been found online! And no wifi !, 2014 wifi

Org. hibernate. NonUniqueObjectException: a different object with the same identifier value was already associated with the session: [com. entity. user. User #40288a814a968946014a96896f710008]
At org. hibernate. engine. StatefulPersistenceContext. checkUniqueness (StatefulPersistenceContext. java: 613)
At org. hibernate. event. def. DefaultSaveOrUpdateEventListener. performUpdate (DefaultSaveOrUpdateEventListener. java: 307)
At org. hibernate. event. def. DefaultSaveOrUpdateEventListener. entityIsDetached (DefaultSaveOrUpdateEventListener. java: 246)
At org. hibernate. event. def. DefaultSaveOrUpdateEventListener. performSaveOrUpdate (DefaultSaveOrUpdateEventListener. java: 112)
At org. hibernate. event. def. DefaultSaveOrUpdateEventListener. onSaveOrUpdate (DefaultSaveOrUpdateEventListener. java: 93)
At org. hibernate. impl. SessionImpl. fireSaveOrUpdate (SessionImpl. java: 535)
At org. hibernate. impl. SessionImpl. saveOrUpdate (SessionImpl. java: 527)
At org. hibernate. engine. CascadingAction $5. cascade (CascadingAction. java: 241)
At org. hibernate. engine. Cascade. cascadeToOne (Cascade. java: 292)
At org. hibernate. engine. Cascade. cascadeAssociation (Cascade. java: 240)
At org. hibernate. engine. Cascade. cascadeProperty (Cascade. java: 193)
At org. hibernate. engine. Cascade. cascade (example. java: 154)
At org. hibernate. event. def. AbstractSaveEventListener. cascadeBeforeSave (AbstractSaveEventListener. java: 454)
At org. hibernate. event. def. AbstractSaveEventListener. descrimsaveorreplicate (AbstractSaveEventListener. java: 288)
At org. hibernate. event. def. AbstractSaveEventListener. abstrmsave (AbstractSaveEventListener. java: 204)
At org. hibernate. event. def. AbstractSaveEventListener. saveWithGeneratedId (AbstractSaveEventListener. java: 144)
At org. hibernate. event. def. DefaultSaveOrUpdateEventListener. saveWithGeneratedOrRequestedId (DefaultSaveOrUpdateEventListener. java: 210)
At org. hibernate. event. def. DefaultSaveEventListener. saveWithGeneratedOrRequestedId (DefaultSaveEventListener. java: 56)
At org. hibernate. event. def. DefaultSaveOrUpdateEventListener. entityIsTransient (DefaultSaveOrUpdateEventListener. java: 195)
At org. hibernate. event. def. DefaultSaveEventListener. performSaveOrUpdate (DefaultSaveEventListener. java: 50)
At org. hibernate. event. def. DefaultSaveOrUpdateEventListener. onSaveOrUpdate (DefaultSaveOrUpdateEventListener. java: 93)
At org. hibernate. impl. SessionImpl. fireSave (SessionImpl. java: 563)
At org. hibernate. impl. SessionImpl. save (SessionImpl. java: 551)
At org. hibernate. impl. SessionImpl. save (SessionImpl. java: 547)
At com. dao. impl. performancehibernateutil. save2 (performancehibernateutil. java: 71)
At com. dao. impl. Test. main (Test. java: 33)