Close Java app before each run in Eclipse

Question

I wish the run command (usually default to CTRL+F11 combination) of a Java project (and C++ if you know it too) to automatically close the previous process (or all processes, if it's easier) started by it before it runs a new instance.

In short, running a project should also close previous app instance. Is it possible?

Maybe it's possible to add code to the app itself, and disable it once I don't need it anymore? I want it since it's annoying to close the app each time. I don't need so many instances of the app.

Answer 1

In Eclipse Neon go to Window -> Preferences -> Run/Debug -> Launching and in the Launch Operation section check:

[X] Terminate and Relaunch while launching

Answer 2

Easier said than done. I suggest you terminate the process yourself by clicking on the little red stop icon in the console or by terminating the main thread from the threads view in the debugger perspective.