Sat Jul 21 11:17:59 PDT 2018 WARN: Establishing SSL connection without server's identity verification is not recommended.According to MySQL 5.5.45+, 5.6.26+ and 5.7.6+ requirements SSL connection must be established by default if explicit option isn't set.For compliance with existing applications not using SSL theverifyServerCertificate property is set to 'false'. You need either to explicitly disable SSL by settinguseSSL=false, or setuseSSL=true and provide truststorefor server certificate verification.