/**
     * Any change to the last access time of files in the watched directory or subtree causes a change notification wait
     * operation to return.
     */
    int FILE_NOTIFY_CHANGE_LAST_ACCESS = 0x00000020;

    /**
     * Any change to the creation time of files in the watched directory or subtree causes a change notification wait
     * operation to return.
     */

     * Notify when last write time changes
     */
    public static final int FILE_NOTIFY_CHANGE_LAST_WRITE = 0x10;
    /**
     * Notify when last access time changes
     */
    public static final int FILE_NOTIFY_CHANGE_LAST_ACCESS = 0x20;
    /**
     * Notify when creation time changes
     */
    public static final int FILE_NOTIFY_CHANGE_CREATION = 0x40;
    /**
     * Notify when extended attributes change
     */