Spring Data JDBC has deprecated its INSTANCE constants in its MariaDB
and MySQL dialects as the required configuration for the dialect
varies depending on the configuration of the DB.
This commit adapts to this deprecation by changing Boot's
DataJdbcDatabaseDialect to resolve the underlying dialect through a
DB query for its MARIA and MYSQL values.
Closes gh-46062
Projects which don't have JSpecify nullability annotations can opt out
by using
architectureCheck {
nullMarked = false
}
in their build.gradle script.
See gh-46587
Andy Wilkinson
Moritz Halbritter
Phillip Webb