Changed Priority from Normal to Immediate I am also facing same issue while installing new jar for mysql data source through other option. 1. Add a JDBC data source.2. For JDBC Driver, choose "Other".3. Enter the JDBC driver class name, URL, and other required information. (Driver Name: com.mysql.cj.jdbc.Driver, Connector jar : mysql-connector-java-8.0.12.jar)4. Click "Add Driver", then upload the JDBC driver "mysql-connector-java-8.0.12.jar".5. If you click the "Upload" button, the driver will be uploaded.6. Test the connection. Connection passed.7. Click "save" button.8. Select the data source you just created, then click the "edit" button.9. You will see the driver being displayed as "NOT INSTALLED", however the connection test is success.