title: mysql connection with sql developer
body: <p>I try to create a mysql connection with sql developer on MAC.</p>
  <p>I loaded the mysql driver.</p>
  <p><a href="https://i.stack.imgur.com/HFc7Q.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/HFc7Q.png" alt="enter image description here" /></a></p>
  <p>I tried to create a connection</p>
  <p><a href="https://i.stack.imgur.com/9SD4n.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/9SD4n.png" alt="enter image description here" /></a></p>
  <p>But I had the following error</p>
  <p>Statut : échec -Echec du test : Communications link failure</p>
  <p>The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.</p>