Date Created is not going to change while delete file and then create file

Question

due to some reason i have to remove older file and create new file according to our client

Date Modified is change to current time but Date Created is not change to current time.

my code is as follows

  public static void main(String args[]) throws Exception {
    FileUtils.deleteQuietly(new File("d:\\inbox\\json\\test.txt"));
    FileWriter fileWriter = new FileWriter("d:\\inbox\\json\\test.txt", false);
    fileWriter.append(new Date().toString());
    fileWriter.close();
  }

this code remove older data and write new data

but why date created time is not changed..

please help me to figure out what's in wrong with my code. thanks in advance.

Answer 1

This is happening due to File System Tunneling in windows. There are options to disable/configure it. You can get more info regarding this from this link support.microsoft.com.

Innorder to counteract to this in java way, you can set file created time(file attribute) immediately after creation of file as in the code below.

public static void main(String args[]) throws Exception {
        final String FILE_PATH = "d:\\test.txt";
        FileUtils.deleteQuietly(new File(FILE_PATH));
        FileWriter fileWriter = new FileWriter(FILE_PATH, false);
        fileWriter.append(new Date().toString());
        fileWriter.close();
        setFileCreationTime(FILE_PATH);

    }

    public static void setFileCreationTime(String filePath) throws IOException {
        Path path = Paths.get(filePath);
        FileTime fileTime = FileTime.fromMillis(System.currentTimeMillis());
        /* Changing the Created Time Stamp */
        Files.setAttribute(path, "basic:creationTime", fileTime,
                LinkOption.NOFOLLOW_LINKS);
    }

Hope this helps.