DirectoryStream with PathMatcher not returning any paths

Question

Although I\'ve seen a lot of answers for similar questions I can\'t make the following code work as I think it should:

File dataDir = new File(\"C:\\\\User\\\\us         


        

Answer 1

DirectoryStream only iterates through the directory you give it and matches entries in that directory. It does not look in any sub-directories.

You need to use one of the walkXXXX methods of Files to look in all directories. For example:

try (Stream<Path> stream = Files.walk(dataDir.toPath())) {
  stream.filter(pathMatcher::matches)
        .forEach(path -> System.out.println(path.toString()));
}