ESPACE HEAP ERREUR: ne peut pas comprendre ce qui est à l'origine de l'erreur

Question

Quelqu'un l'esprit ayant un regard sur ces bouts de code et voir s'il y a une fuite de mémoire en eux, il ne va pas être trop grand, mais mon programme continue à se briser après un certain temps de courir et je ne sais pas comment utiliser viualvm même si je suis en train de lire sur le sujet depuis plusieurs jours et n'ont pas la moindre idée de ce que je cherche dans les décharges de tas et ainsi de suite. Merci de votre aide, ps Je sais que j'ai posté beaucoup à muchg code, mais je ne sais pas quoi faire pour que vous puissiez l'espérons voir où le problème se pose pour moi. Si elle aide je peux vous envoyer un courriel au programme complet de jeter un coup d'oeil. Merci beaucoup pour toute aide que vous pouvez donner.

  public class extraScreenPanel {

    static JPanel screenPanel = new JPanel(new BorderLayout()); 

    public static JPanel extraScreenPanel(int dispNum) 
    {
        JLabel label = new JLabel("" + dispNum + "");
        label.setPreferredSize(new Dimension(800, 600));
        label.setVerticalAlignment( SwingConstants.TOP );
        screenPanel = imgDisp(dispNum);
        label.setForeground(Color.white);
        label.setFont(new Font("Serif", Font.BOLD, 200));
        screenPanel.add(label, BorderLayout.PAGE_END );

        return screenPanel;
    }



    public static JPanel imgDisp(int picNum) {  
        String ref = "C:/PiPhotoPic/pic16.jpg";;
        BufferedImage loadImg = loadImage(ref);  
        JImagePanel panel = new JImagePanel(loadImg, 0, 0);  
        panel.setPreferredSize(new Dimension(800, 600));
        return panel;
    }  


    public static class JImagePanel extends JPanel{  
        private BufferedImage image;  
        int x, y;  
       public JImagePanel(BufferedImage image, int x, int y) {  
            super();  
            this.image = image;  
            this.x = x;  
            this.y = y;  
        }  
        @Override  
        protected void paintComponent(Graphics g) {  
           super.paintComponent(g);  
            g.drawImage(image, x, y, null);  
       }  
    }  


    public static BufferedImage loadImage(String ref) {  
            BufferedImage bimg = null;  
            try {  

              bimg = javax.imageio.ImageIO.read(new File(ref));  
         } catch (Exception e) {  
             e.printStackTrace();  
         } 
         BufferedImage bimg2 = resize(bimg,800,600);//set these to the resolution of extra screens
         return bimg2;  
     }  


     public static BufferedImage resize(BufferedImage img, int newW, int newH) {  
        int w = img.getWidth();  
        int h = img.getHeight();  
        BufferedImage dimg = dimg = new BufferedImage(newW, newH, img.getType());  
        Graphics2D g = dimg.createGraphics();  
        g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);  
        g.drawImage(img, 0, 0, newW, newH, 0, 0, w, h, null);  
        g.dispose();  
        return dimg;  
    }  


}

Une autre partie de la méthode

public class piPhoto
{
    static int mostRecent = 0;
    static int dispNum = 0;
    static int lastDisp = 0;
    static JPanel picPanel = imgDisp.imgDisp(dispNum);
    static JFrame frame = new JFrame("Pi Photography");
    static JPanel cornerPanel = new JPanel();
    static JPanel bottomPanel = new JPanel();
    static JPanel menuPanel = new JPanel(new BorderLayout());
    static JPanel currentNumPanel = currentNumDisp.currentNumDisp(dispNum);
    static JPanel printPanel = printOptions.printOptions();
    static JPanel buttonPanel = updateButtonPanel.updateButtonPanel(mostRecent);
    static JPanel screen1Panel = new JPanel();
    static JPanel screen2Panel = new JPanel();
    static JPanel screen3Panel = new JPanel();
    static JPanel screen4Panel = new JPanel();
    static JPanel screenPanel12 = new JPanel(new BorderLayout());
    static JPanel screenPanel123 = new JPanel(new BorderLayout());
    static JPanel screenPanel1234 = new JPanel(new BorderLayout());
    static JPanel screensPanel = new JPanel(new BorderLayout());
    static JPanel deskScreen = new JPanel();
    static JPanel wholePanel = new JPanel(new BorderLayout());
    static JPanel wholePanel2 = new JPanel(new BorderLayout());




    public static void launchPiPhoto()
    {
        launchNC4.launch();

        bottomPanel.setPreferredSize(new Dimension(1440, 200));
        buttonPanel.setPreferredSize(new Dimension(1120, 200));
        cornerPanel.setPreferredSize(new Dimension(300,200));
        screen1Panel.setPreferredSize(new Dimension(800,600));
        screen2Panel.setPreferredSize(new Dimension(800,600));
        screen3Panel.setPreferredSize(new Dimension(800,600));
        screen4Panel.setPreferredSize(new Dimension(800,600));
        screensPanel.setPreferredSize(new Dimension(3200,600));
        deskScreen.setPreferredSize(new Dimension(800,600));
        wholePanel.setPreferredSize(new Dimension(4640,900));
        wholePanel2.setPreferredSize(new Dimension(5440,900));
        cornerPanel.setLayout(new BoxLayout(cornerPanel, BoxLayout.PAGE_AXIS));


        picPanel.setPreferredSize(new Dimension(1120, 620));


        //Menu Panel Set-up
        cornerPanel.add(currentNumPanel);
        bottomPanel.add(buttonPanel);
        bottomPanel.add(cornerPanel);
        menuPanel.setPreferredSize(new Dimension(1440, 840));
        menuPanel.setBorder(BorderFactory.createEmptyBorder(5,5,5,5));
        menuPanel.add(bottomPanel, BorderLayout.PAGE_END);
        menuPanel.add(picPanel, BorderLayout.LINE_START);
        menuPanel.add(printPanel, BorderLayout.LINE_END);

        screen1Panel = extraScreenPanel.extraScreenPanel(piPhoto.mostRecent - 3);
        screen2Panel = extraScreenPanel.extraScreenPanel(piPhoto.mostRecent - 2);
        screen3Panel = extraScreenPanel.extraScreenPanel(piPhoto.mostRecent - 1);
        screen4Panel = extraScreenPanel.extraScreenPanel(piPhoto.mostRecent);
        screenPanel12.add(screen1Panel, BorderLayout.LINE_START);
        screenPanel12.add(screen2Panel, BorderLayout.LINE_END);
        screenPanel123.add(screenPanel12, BorderLayout.LINE_START);
        screenPanel123.add(screen3Panel, BorderLayout.LINE_END);
        screenPanel1234.add(screenPanel123, BorderLayout.LINE_START);
        screenPanel1234.add(screen4Panel, BorderLayout.LINE_END);
        screensPanel.add(screenPanel1234, BorderLayout.LINE_END);
        deskScreen = extraScreenPanel.extraScreenPanel(dispNum);

        wholePanel.add(menuPanel, BorderLayout.LINE_START);
        wholePanel.add(screensPanel, BorderLayout.LINE_END);
        wholePanel2.add(wholePanel, BorderLayout.LINE_START);
        wholePanel2.add(deskScreen, BorderLayout.LINE_END);

        frame.add(wholePanel2);

        //Frame set-up and Initializing
        JFrame.setDefaultLookAndFeelDecorated(true);
        frame.setResizable(false);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        frame.pack();
        frame.setVisible(true);
        newImageRecieved.runCheck();
    }

    public static void repaintButtonPanel()
    {
        bottomPanel.removeAll();
        bottomPanel.setPreferredSize(new Dimension(1440, 200));
        buttonPanel = updateButtonPanel.updateButtonPanel(mostRecent);
        buttonPanel.setPreferredSize(new Dimension(1120, 200));
        cornerPanel.add(currentNumPanel);
        bottomPanel.add(buttonPanel);
        bottomPanel.add(cornerPanel);
        menuPanel.add(bottomPanel, BorderLayout.PAGE_END);
        frame.validate();
    }

        public static void repaintScreens()
    {
        wholePanel.remove(screensPanel);
        screen1Panel.removeAll();
        screen1Panel = extraScreenPanel.extraScreenPanel(piPhoto.mostRecent);
        screen2Panel.removeAll();
        screen2Panel = extraScreenPanel.extraScreenPanel(piPhoto.mostRecent - 1);
        screen3Panel.removeAll();
        screen3Panel = extraScreenPanel.extraScreenPanel(piPhoto.mostRecent - 2);
        screen4Panel.removeAll();
        screen4Panel = extraScreenPanel.extraScreenPanel(piPhoto.mostRecent - 3);
        screenPanel12.add(screen1Panel, BorderLayout.LINE_START);
        screenPanel12.add(screen2Panel, BorderLayout.LINE_END);
        screenPanel123.add(screenPanel12, BorderLayout.LINE_START);
        screenPanel123.add(screen3Panel, BorderLayout.LINE_END);
        screenPanel1234.add(screenPanel123, BorderLayout.LINE_START);
        screenPanel1234.add(screen4Panel, BorderLayout.LINE_END);
        screensPanel.add(screenPanel1234, BorderLayout.LINE_END);
        wholePanel.add(menuPanel, BorderLayout.LINE_START);
        wholePanel.add(screensPanel, BorderLayout.LINE_END);
        frame.validate();
    }



} 

la partie qui vérifie si de nouvelles images sont ajoutées au fichier encore

    public class newImageRecieved {
static int count = 0;

public static void runCheck()
{
     int delay = 500;
     ActionListener taskPerformer = new ActionListener() {
        public void actionPerformed(ActionEvent evt) {

            newImageRecieved(piPhoto.mostRecent+1);
        }
     };
     new Timer(delay, taskPerformer).start();
}

    public static void newImageRecieved(int picNum)
    {

            String url[] = new String[5000];
            String part1;
        url[0] = "C:/PiPhotoPic/pic16.jpg";
        for(Integer i=1;i<5000;i++){
            if(i<10){part1 = "C:/temp/new0000000";}
            else if(i<100){part1 = "C:/temp/new000000";}
            else if(i<1000){part1 = "C:/temp/new00000";}
            else {part1 = "C:/temp/new00000";}
            String num = Integer.toString(i);
            url[i]= part1 + num + ".jpg";
        }
        if(picNum<0){picNum=0;}
        String ref = url[picNum];
            piPhoto.frame.validate();
            boolean exists = (new File(ref)).exists();
            if(exists == true)
            {
                while (exists == true) 
                {
                    piPhoto.updateMostRecent(picNum);
                    ref = url[picNum + 1];
                    picNum = picNum + 1;
                    exists = (new File(ref)).exists();

                }

                piPhoto.updateMostRecent(picNum-1);
                piPhoto.repaintButtonPanel();
                piPhoto.repaintScreens();
                count=0;
            }
        //  }
    }

}

Answer 1

Résolu aujourd'hui. S'avère je ne ai pas enlever les panneaux d'image de l'ancienne méthode, aso que lorsque je les repeindre je peignais sur les anciens et les anciens étaient toujours là. Donc, je voulais juste ajouter à removeAll () pour tous les panneaux qui ont été mis à jour et le programme a fonctionné très bien sans erreurs de heapstack.

Answer 2

Vous pouvez essayer un profileur de mémoire tels que YourKit

Answer 3

Eh bien, vous créez un tableau de 5000 chaînes et commencer à remplir la plupart d'entre eux.