Java 21 Swing Nimbus在Win/Linux高分辨率屏GUI缩放异常求助

关于Java在Windows/Linux系统的缩放问题已有诸多旧提问但无明确答案，特向Swing专家咨询Nimbus相关的最新解决方案。我在1920×1080分辨率设备上开发了一款基于Swing Nimbus的Java 21应用，在高分辨率屏幕运行时GUI显示极小。查阅JEP 263得知问题已解决，但不知如何修改代码；尝试了相关JVM参数后，按建议制作的小测试示例可正常缩放，最终定位到背景图片绘制代码存在问题，现求助如何修复该代码。

Nimbus配置代码 #

NimbusLookAndFeel nimbus = new NimbusLookAndFeel();
UIManager.setLookAndFeel(nimbus);
UIManager.put("control", Color.WHITE);
UIManager.put("nimbusBlueGrey", ApplicationColors.getLightGrayGold());
UIManager.put("nimbusBase", ApplicationColors.getDarkGold());
UIManager.put("textForeground", Color.BLACK);
UIManager.put("nimbusFocus", ApplicationColors.getSunflowerYellow());
UIManager.put("ToolBar:Button.contentMargins", new Insets(5, 15, 5, 15));
UIManager.put("TextField.background", ApplicationColors.getLightYellow());
UIManager.put("ComboBox.forceOpaque", false);
UIManager.put("TitledBorder.border", new Insets(10, 10, 10, 10));
UIManager.put("TitledBorder.position", TitledBorder.ABOVE_BOTTOM);
UIManager.put("TitledBorder.font", ApplicationFonts.getGermanFont(16F));
UIManager.put("TitledBorder.titleColor", Color.GRAY);
UIManager.put("Table.opaque", false);
UIManager.put("List.opaque", false);
UIManager.put("Table.cellRenderer", false);
UIManager.put("OptionPane.buttonFont", ApplicationFonts.getGermanFont(16F));

UIManager.put("OptionPane.cancelButtonText", translator.realisticTranslate(Translation.ABBRECHEN));
UIManager.put("OptionPane.yesButtonText", translator.realisticTranslate(Translation.JA));
UIManager.put("OptionPane.noButtonText", translator.realisticTranslate(Translation.NEIN));
UIManager.put("OptionPane.titleText", translator.realisticTranslate(Translation.BILD_LOESCHEN));

UIManager.put("FileChooser.openButtonText", translator.realisticTranslate(Translation.OEFFNEN));
UIManager.put("FileChooser.cancelButtonText", translator.realisticTranslate(Translation.ABBRECHEN));
UIManager.put("FileChooser.saveButtonText", translator.realisticTranslate(Translation.SPEICHERN));
UIManager.put("FileChooser.cancelButtonToolTipText", translator.realisticTranslate(Translation.ABBRECHEN_DER_AUSWAHL));
UIManager.put("FileChooser.saveButtonToolTipText",
        translator.realisticTranslate(Translation.AUSGEWAEHLTE_DATEI_SPEICHERN));
UIManager.put("FileChooser.openButtonToolTipText",
        "Ausgewählte Datei öffnen");
UIManager.put("FileChooser.upFolderToolTipText", "Eine Ebene höher");
UIManager.put("FileChooser.homeFolderToolTipText", "Home");
UIManager.put("FileChooser.newFolderToolTipText",
        "Neuen Ordner erstellen");
UIManager.put("FileChooser.listViewButtonToolTipText", "Liste");
UIManager.put("FileChooser.detailsViewButtonToolTipText", "Details");
UIManager.put("FileChooser.lookInLabelText", "Suchen in:");
UIManager.put("FileChooser.fileNameLabelText", "Dateiname:");
UIManager.put("FileChooser.filesOfTypeLabelText", "Dateityp:");
UIManager.put("FileChooser.acceptAllFileFilterText",
        "Alle Dateien (*.*)");
UIManager.put("FileChooser.folderNameLabelText", "Ordnername:");
UIManager.put("FileChooser.openDialogTitleText", translator.realisticTranslate(Translation.OEFFNEN));
UIManager.put("FileChooser.saveDialogTitleText", translator.realisticTranslate(Translation.SPEICHERN));
UIManager.put("OptionPane.background", ApplicationColors.getWhite());

问题背景图片绘制代码 #

public void paintComponent(Graphics g)
{
    super.paintComponent(g);
    if (ApplicationImages.getImage() != null)
    {
        float factorWidth = getParent().getWidth() / 1280F;
        float factorHeight = getParent().getHeight() / 859F;
        if (factorWidth < factorHeight)
        {
            int width = (int) (1280F * factorHeight);
            int x = getParent().getWidth() / 2 - width / 2;
            g.drawImage(
                    ApplicationImages.getImage().getScaledInstance(width,
                            getParent().getHeight(), 
                            BufferedImage.SCALE_SMOOTH),
                    x, 0, this);
        }
        else
        {
            int height = (int) (859F * factorWidth);
            int y = getParent().getHeight() / 2 - height / 2;
        
            g.drawImage(ApplicationImages.getImage().getScaledInstance(
                    getParent().getWidth(), height, 
                    BufferedImage.SCALE_SMOOTH),
                    0, y, this);
        }
    }
}

内容的提问来源于stack exchange，提问作者dragoness