// OS
                visit(activation.getOs());
                // Property
                visit(activation.getProperty());
                // File
                visit(activation.getFile());
            }
        }

        private void visit(ActivationOS activationOS) {
            if (activationOS != null) {
                String org, val;
                // Name

    public final String getResourceName() {
      return resourceName;
    }

    /** Returns the file that includes this resource. */
    final File getFile() {
      return file;
    }

    @Override
    public int hashCode() {
      return resourceName.hashCode();
    }

    @Override
    public boolean equals(@Nullable Object obj) {

        for (Profile profile : interpolatedActivations) {
            Activation activation = profile.getActivation();
            Optional<Activation> a = Optional.ofNullable(activation);
            a.map(Activation::getFile).ifPresent(fa -> {
                Interpolation nt =
                        new Interpolation(fa, s -> profileActivationFilePathInterpolator.interpolate(s, context));

                }
            }
        };
        Optional<Activation> root = Optional.of(activation);
        stk.push(new ActivationFrame("activation", root));
        root.map(Activation::getFile).ifPresent(fa -> {
            stk.push(new ActivationFrame("file", Optional.of(fa)));
            stk.push(new ActivationFrame("exists", Optional.empty()));
            validator.accept(fa.getExists());

    if (!(exception instanceof NoSuchFileException)) {
      return null;
    }
    NoSuchFileException noSuchFileException = (NoSuchFileException) exception;
    String exceptionFile = noSuchFileException.getFile();
    if (exceptionFile == null) {
      /*
       * It's not clear whether this happens in practice, especially with the filesystem
       * implementations that are built into java.nio.
       */