12541, 00000, "TNS:no listener"
// *Cause: The connection request could not be completed because the listener
// is not running.
// *Action: Ensure that the supplied destination address matches one of
// the addresses used by the listener - compare the TNSNAMES.ORA entry with
// the appropriate LISTENER.ORA file (or TNSNAV.ORA if the connection is to
// go by way of an Interchange). Start the listener on the remote machine.
So as you can see it's related to the fact that your code is trying to reach a DB (hoping it's a DB because you are more trying to reach a WEB URL … ) for which the listener is not running.
What I think is that this problem is more related to the WEB URL given in your code which is not the good one, you should not use oracle-base.com -> I guess this was an example but you have to use a EC internal Web URL to connect to.
Partager