敬请各位老大帮忙!java.sql.SQLException: 违反协议!急急急

急急急
java.sql.SQLException: 违反协议
        at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:134)
        at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:179)
        at oracle.jdbc.dbaccess.DBError.check_error(DBError.java:1160)
        at oracle.jdbc.ttc7.Oclose.receive(Oclose.java:133)
        at oracle.jdbc.ttc7.TTC7Protocol.close(TTC7Protocol.java:683)
        at oracle.jdbc.driver.OracleStatement.close(OracleStatement.java:644)
        at dbqueue.Backup.performBackup(Backup.java:388)
        at dbqueue.Backup.main(Backup.java:707)