The 'Relaunch' functionality provided by the 'Launch' toolbar button is hard to discover
https://bugs.eclipse.org/bugs/show_bug.cgi?id=579680
By Default the preference - Terminate and relaunch while launching (Press 'Shift' to toggle during launch from menu and toolbar) is not set and fixing this to set by default would make sense and will it achieve the below expectation mentioned [here] ?(https://bugs.eclipse.org/bugs/show_bug.cgi?id=579680)
2. Alternatively, we can just switch the default of the 'Launch' button so that it stops previous processes and behaves like 'Relaunch'. (Personally, this is the behavior that I want at least 99% of the time, I would thinking most people would agree, but I guess that is open to debate as I can only speak for myself).