com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.

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com.mysql.cj.jdbc.exceptions.CommunicationsException: The last packet successfully received from the server was 63,138,962 milliseconds ago. The last packet sent successfully to the server was 63,138,963 milliseconds ago. is longer than the server configured value of 'wait_timeout'. You should consider either expiring and/or testing connection validity before use in your application, increasing the server configured values for client timeouts, or using the Connector/J connection property 'autoReconnect=true' to avoid this problem.