A DESCRIPTION OF THE PROBLEM :
Displaying text in a Graphics2D canvas using TextLayout displays certain Arabic characters incorrectly when using the font "Sakkal Majalla". Using "Arial" it works fine.
This worked in the past (f.e. at least in 1.8.0_92) and in other JREs (f.e. Zulu 1.8 and Adopt 1.8).
It stopped working in 1.8 261 (at least).

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Just run the program below (ensure that the font "Sakkal Majalla" is installed on your system): you will see a canvas showing two times the same text, once using "Arial" and once using "Sakkal Majalla"

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Both lines of text look the same (modular minor differences due to different fonts).
ACTUAL -
Two texts look completely different.

---------- BEGIN SOURCE ----------
    public static void main(String[] args) {
        String sakkal_majalla = "Sakkal Majalla";

        Font[] fonts = GraphicsEnvironment.getLocalGraphicsEnvironment().getAllFonts();
        if (Arrays.stream(fonts).noneMatch(font -> font.getFamily().equals(sakkal_majalla))) {
            System.err.println("Cannot find font '" + sakkal_majalla + "' in the system.");
            System.exit(1);
        }

        JPanel panel = new JPanel() {
            @Override
            protected void paintComponent(Graphics g) {
                super.paintComponent(g);

                Graphics2D g2d = (Graphics2D) g;

                String text = "\u062D\u0643\u0648";
                g2d.setColor(Color.black);

                int x = 10;
                int y = 50;
                drawString(g2d, text, "Arial", x, y);
                drawString(g2d, text, sakkal_majalla, x, y + 50);
            }

            private void drawString(Graphics2D g2d, String text, String font, int x, int y) {
                new TextLayout(text, new Font(font, Font.PLAIN, 30), g2d.getFontRenderContext()).draw(g2d, x, y);
            }
        };

        panel.setBackground(Color.white);

        JFrame frame = new JFrame("Font rendering");
        frame.add(panel);
        frame.setSize(200, 300);
        frame.setLocationRelativeTo(null);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setVisible(true);
    }

---------- END SOURCE ----------

FREQUENCY : always