Why is Java 7 Files.walkFileTree throwing exception on encountering a tar file on remote drive

Question

Im using Files.WalkFileTree() to navigate folder and counting audio files, but there is a problem when it encounters a tar file, it seems to be treating it as a

Answer 1

Workaround for the problem at hand:

But implement a visitFileFailed and you should be ok.

public class MyFileVisitor extends SimpleFileVisitor<Path> {
    @Override
    public FileVisitResult visitFileFailed(Path file, IOException exc) throws IOException {
        if (file.toString().endsWith(".tar")) {
            return FileVisitResult.CONTINUE;
        }
        return super.visitFileFailed(file, exc);
    }
}

Update: If we look closer we can see that walkFileTree uses the Files.readAttributes which turns to the current provider in play: WindowsFileSystemProvider.readAttributes to determine if a path is a directory.

As someone mentioned in the comments I also dont think the fault is in the Java-implementation but the OS-native-call that returns the wrong attribute

If you wanted to do a workaround for this, one option would be to implement your own FileSystem that wraps the WindowsFileSystem implementation transparently, except readAttributes returns .tar-paths as file instead of dir.