javax.jdo.JDOUserException: An instance was concurrently modified in another transaction (optimistic lock #: 17). FailedObject: de.cg.cornea.data.ClinicID@a308b881: name=Helios Klinik Buch

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An instance was concurrently modified in another transaction (optimistic lock #: 17). FailedObject: de.cg.cornea.data.ClinicID@a308b881: name=Helios Klinik Buch
javax.jdo.JDOUserException: An instance was concurrently modified in another transaction (optimistic lock #: 17). FailedObject: de.cg.cornea.data.ClinicID@a308b881: name=Helios Klinik Buch
at com.solarmetric.kodo.impl.jdbc.ormapping.FlatClassMapping.update(FlatClassMapping.java:160)
at com.solarmetric.kodo.impl.jdbc.runtime.JDBCStoreManager.update(JDBCStoreManager.java:318)
at com.solarmetric.kodo.runtime.StateManagerImpl.storeFields(StateManagerImpl.java:1139)
at com.solarmetric.kodo.runtime.PDirtyState.flush(PDirtyState.java:37)
at com.solarmetric.kodo.runtime.StateManagerImpl.flush(StateManagerImpl.java:334)
at com.solarmetric.kodo.runtime.PersistenceManagerImpl.flush(PersistenceManagerImpl.java:337)
at com.solarmetric.kodo.runtime.PersistenceManagerImpl.commit(PersistenceManagerImpl.java:245)

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