How do I get rid of unusable application icon on launcher?

[Colin Law]

On Fri, 24 May 2019 at 13:50, Owen Thomas <owen.paul.thomas at gmail.com> wrote:
>
> My problem is very simple: I have a Netbeans icon on the launcher that flashes for a while then does nothing. If I remove it from the launcher, start Netbeans from a CLI window, lock the icon to the launcher, close the open Netbeans session and then try to start Netbeans from the launcher again, the same thing happens again.
>
> It should be a simple matter to fix, but I guess nothing's quite that simple in the Ubuntu launcher. I suppose I'll just have to wear the Ubuntu grin and start Netbeans from a CLI session from now on.

It isn't an issue with the launcher, it is an issue with starting
netbeans other than by CLI.  Did you try the solutions in the link I
posted?

Colin