Fresh Jira 8.10 with empty jiradb on MySQL 5.7 does not start

[Benmway]

When starting a fresh Jira 8.10. with an empty jiradb on MySQL 5.7 after entering the db credentials I get

This MySQL instance is not properly configured. Please follow the documentation for MySQL 5.7+ setup.

I have configured everything like in the MySQL 5.7 setup. I can't process further with this error. In the logs I can see this:

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 the verifyServerCertificate property is set to 'false'. You need either to explicitly disable SSL by setting useSSL=false, or set useSSL=true and provide truststore for server certificate verification.

As I have an empty database, I can not put a dbconfig.xml in the jira home directory to disable useSSL. How is Jira 8.10 supposed to start with MySQL 5.7?

Downgrading MySQL to 5.7.5 didn't help. I get the same error message.