Hi. I'm creating EntityManager instance and keep it open through whole application cycle. After doing em.persist() and objects still in session. Next em.persist() produces sqls for current persist + sqls for previous persists. After doing em.clear() problem resolved, but all object left with detached state and has not session cache. I think that em.clear() isn't be directly called from user code and should be another way. So, help, please, with ideology.
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