I updated the connector to mysql-connector-java-8.0.21.jar and it worked again. Now Java has updated to 8u261 and I have the same error again, but there is no new version of the JDBC driver.
I updated the connector to mysql-connector-java-8.0.21.jar and it worked again. Now Java has updated to 8u261 and I have the same error again, but there is no new version of the JDBC driver.