check
Checks the passed String whether it is an existing file. If the passed String is empty, then ServerPackCreator will treat it as the user being fine with the default files and return the corresponding boolean.
Return
true if the file exists or an empty String was passed, false if a file was specified, but the file was not found.
Author
Griefed
Parameters
icon
The path to the custom server-icon.png or server.properties file to check.