Problem z Scannerem

Mam taki problem. Gdy wpisze: Scanner read = new Scanner(new File("/home/tadzio/Reg/config.txt")); to jest ok a jesli zrobie tak: String path = "/home/tadzio/Reg/config.txt"; Scanner read = new Scanner(new File(path)); to wywala: Exception in thread "main" java.lang.NullPointerException at java.io.File.(File.java:277) at main.Main.menu(Main.java:47) at main.Main.main(Main.java:18) w linijce 47 jest: Scanner read = new Scanner(new File(path));