Add missing "MARIADB" datasource backend to the configuration file, remove "mySQLDriverClassName" property as it is no longer needed.

src/main/java/fr/xephi/authme/datasource/MySQL.java

@@ -44,7 +44,6 @@ public class MySQL extends AbstractSqlDataSource {
     private String port;
     private String username;
     private String password;
-    private String className;
     private String database;
     private String tableName;
     private int poolSize;
@@ -90,6 +89,15 @@ public class MySQL extends AbstractSqlDataSource {
         setParameters(settings, extensionsFactory);
     }
 
+    /**
+     * Returns the path of the Driver class to use when connecting to the database.
+     *
+     * @return the dotted path of the SQL driver class to be used
+     */
+    protected String getDriverClassName() {
+        return "com.mysql.cj.jdbc.Driver";
+    }
+
     /**
      * Retrieves various settings.
      *
@@ -101,14 +109,6 @@ public class MySQL extends AbstractSqlDataSource {
         this.port = settings.getProperty(DatabaseSettings.MYSQL_PORT);
         this.username = settings.getProperty(DatabaseSettings.MYSQL_USERNAME);
         this.password = settings.getProperty(DatabaseSettings.MYSQL_PASSWORD);
-        this.className = settings.getProperty(DatabaseSettings.MYSQL_DRIVER_CLASS_NAME);
-        try {
-            Class.forName(this.className);
-        } catch (ClassNotFoundException e) {
-            this.className = DatabaseSettings.MYSQL_DRIVER_CLASS_NAME.getDefaultValue();
-            logger.info("Driver class '" + this.className + "' not found! Falling back to the built-in MySQL driver ("
-                + this.className + ")");
-        }
         this.database = settings.getProperty(DatabaseSettings.MYSQL_DATABASE);
         this.tableName = settings.getProperty(DatabaseSettings.MYSQL_TABLE);
         this.columnOthers = settings.getProperty(HooksSettings.MYSQL_OTHER_USERNAME_COLS);
@@ -141,7 +141,7 @@ public class MySQL extends AbstractSqlDataSource {
         ds.setPassword(this.password);
         
         // Driver
-        ds.setDriverClassName(this.className);
+        ds.setDriverClassName(this.getDriverClassName());
 
         // Request mysql over SSL
         ds.addDataSourceProperty("useSSL", String.valueOf(useSsl));