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Error: org.springframework.orm.jpa.JpaSystemException: Exception [EclipseLink-4002] (Eclipse Persistence Services - 2.7.9.v20210604-2c549e2208): org.eclipse.persistence.exceptions.DatabaseException Internal Exception: java.sql.SQLRecoverableException: IO Error: The Network Adapter could not establish the connection (CONNECTION_ID=Zo/BRo+RQ0GggAuWVbrGLA==) Error Code: 17002 Call: SELECT CODE, CREATE_BY, CREATE_DATE, END_DATE, MOD_BY, MOD_DATE, OFFICE_TITLE, CANDIDATE_TYPE_CODE FROM OFFICE_CD Query: ReadAllQuery(referenceClass=OfficeCd sql="SELECT CODE, CREATE_BY, CREATE_DATE, END_DATE, MOD_BY, MOD_DATE, OFFICE_TITLE, CANDIDATE_TYPE_CODE FROM OFFICE_CD"); nested exception is javax.persistence.PersistenceException: Exception [EclipseLink-4002] (Eclipse Persistence Services - 2.7.9.v20210604-2c549e2208): org.eclipse.persistence.exceptions.DatabaseException Internal Exception: java.sql.SQLRecoverableException: IO Error: The Network Adapter could not establish the connection (CONNECTION_ID=Zo/BRo+RQ0GggAuWVbrGLA==) Error Code: 17002 Call: SELECT CODE, CREATE_BY, CREATE_DATE, END_DATE, MOD_BY, MOD_DATE, OFFICE_TITLE, CANDIDATE_TYPE_CODE FROM OFFICE_CD Query: ReadAllQuery(referenceClass=OfficeCd sql="SELECT CODE, CREATE_BY, CREATE_DATE, END_DATE, MOD_BY, MOD_DATE, OFFICE_TITLE, CANDIDATE_TYPE_CODE FROM OFFICE_CD")