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Error: org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; 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.SQLException: Cannot create PoolableConnectionFactory (IO Error: The Network Adapter could not establish the connection (CONNECTION_ID=jfy35t/8Tj65FwVXym8unQ==)) Error Code: 0