I'm about to write a test of a custom FileVisitor which requires the filename of a path.
The documentation of Path's getFileName reads
Returns: a path representing the name of the file or directory, or null if this path has zero elements
Apart from using a mock - which I try to avoid - how do I construct a Path with zero elements?
- Paths.get("") - requires a non-null argument, the empty string is one element
- new File("").toPath() - requires also a non-null argument, the empty string is one element, too
- anything like Paths.get(".") or Paths.get("./") also have non-zero elements
For all of these, the filename is never null.
Probably it's a behavior of the WindowsFileSystem implementation in Java. Does anyone know if other implementation of FileSystem behave differently and it's actually possible, that getFileName() returns null?
