How can I handle an IOException which I know can never be thrown, in a safe and readable manner?

Question

\"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong go

Answer 1

If your position is that this is so unlikely and should just end the program, use an existing runtime exception, even RuntimeException itself (if not IllegalStateException).

try {
  ....

} catch (FileNotFoundException e) {
    throw new RuntimeException(e);
}