Actually I want to enable_jsonp in my geoserver. For this I have to change the code as suggested by this answer. When I tried to stop the geoserver (located inside geoserver2..15.0/bin/shutdown.bat folder), the cmd was crashed. I am not able to enable the jsonp unless the geoserver was stoped. I know, I install the geoserver install as service in installation process. I think this issue may be arises from there. Any help?
You can stop the service.
Launch Windows Services (type services in the taskbar or run cmd then call services.msc), find Geoserver, do a right click and choose stop.
Note that you can then restart it from there (right click, start)