Oracle SQL Developer 3.0.02 Version 3.0.02 Build MAIN-02.37 Copyright © 2005,2010 Oracle. All Rights Reserved. IDE Version: 18.104.22.168.37.58.38 Product ID: oracle.sqldeveloper Product Version: 11.1.2.02.37
I have been using unit testing very shortly and I got the same problem when I tried to start a test run while the connection was lost. Our office policy is to kill remote sessions after a while,
The solution I used was to delete the test from the GUI and to recreate it manually. I followed the procedure above but it did not help.
Oracle SQL Developer 3.2.10.09
Copyright © 2005, 2012 Oracle. All Rights Reserved.
IDE Version: 22.214.171.124.37.59.48
Product ID: oracle.sqldeveloper
Product Version: 11.2.0.09.57