It's your browser cache which is caching the welcome page. Please clear the Browser Cache and then try again.
Of you can also try utilities like "wget" or "curl" to validate the same: (url should be : http:\\localhost:8080 not http://localhost:8080)
$ curl -v http://localhost:8080
* Rebuilt URL to: http://localhost:8080/ * Trying ::1... * connect to ::1 port 8080 failed: Connection refused * Trying 127.0.0.1... * connect to 127.0.0.1 port 8080 failed: Connection refused * Failed to connect to localhost port 8080: Connection refused * Closing connection 0 curl: (7) Failed to connect to localhost port 8080: Connection refused
If JBoss EAP 6.4 is not running on that port then the above command should give you the same result. So in that case either you try with a fresh browser (without browser cache) or try with another browser.
You might check with "jps -v" whether there is a java process left if you stop/uninstall the server.
On UNIX systems you might delete the directory but the running process is still able to access the files (until they are kept open)