Hi,
I am using SQL Developer Version 18.4.0.376. I am trying to migrate postgresql DB to oracle using Migration Wizard. Under the "Source Database" option, I need to choose Third Party Database from Connection drop down option. I am clicking on Add button to add a connection. I get a list of existing connections. ->

I clicked on "postgresTESTdb" which is related to postgresql DB. If I click on Test, it is successful. However, if I choose that to add into connections, it doesnt appear in the connections list ->

I also checked "Add Platform", which shows, relevant jar file being used for the connection.

However, "Available source platform" shows nothing ->

But, I have used that same jar file to create a connection to connect to a postgres database without any issues ->

Can someone help me to know what's going wrong here? Many Thanks.
Regards,
-Anand