시스템 오류가 발생했습니다. nested exception is org.apache.ibatis.exceptions.PersistenceException: ### Error querying database. Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is org.apache.commons.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (ORA-28040: No matching authentication protocol ) ### The error may exist in file [C:\Program Files\apache-tomcat-8.0.39\webapps\Sinokor_Appserver\WEB-INF\classes\kr\co\sinokor\webddp\standard\main\dao\sqlmap\board_sqlmap.xml] ### The error may involve kr.co.sinokor.webddp.standard.main.dao.BoardDAO.getNoticeList ### The error occurred while executing a query ### Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is org.apache.commons.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (ORA-28040: No matching authentication protocol )