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could not advance using next()
org.hibernate.exception.GenericJDBCException: could not insert: [ejemplo08.Profesor] at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:54) at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:125) at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2982) at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3403) at org.hibernate.action.internal.EntityInsertAction.execute(EntityInsertAction.java:88) at org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:362) at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:354) at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:275) at org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:326) at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:52) at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1210) at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:399) at org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction.beforeTransactionCommit(JdbcTransaction.java:101) at org.hibernate.engine.transaction.spi.AbstractTransactionImpl.commit(AbstractTransactionImpl.java:175) at ejemplo08.Main.main(Main.java:37)Caused by: java.sql.SQLException: Parameter metadata not available for the given statement at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1056) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:957) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:927) at com.mysql.jdbc.MysqlParameterMetadata.checkAvailable(MysqlParameterMetadata.java:68) at com.mysql.jdbc.MysqlParameterMetadata.getParameterType(MysqlParameterMetadata.java:117) at org.hibernate.type.EnumType.nullSafeSet(EnumType.java:121) at org.hibernate.type.CustomType.nullSafeSet(CustomType.java:155) at org.hibernate.persister.entity.AbstractEntityPersister.dehydrate(AbstractEntityPersister.java:2705) at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2959) ... 12 more