#vulnerable code 
                                @Override
    public LayoutResult layout(LayoutContext layoutContext) {
        LayoutArea area = layoutContext.getArea();
        Rectangle layoutBox = area.getBBox();
        occupiedArea = new LayoutArea(area.getPageNumber(), new Rectangle(layoutBox.getX(), layoutBox.getY() + layoutBox.getHeight(), 0, 0));

        width = getPropertyAsFloat(Property.WIDTH);
        Float angle = getPropertyAsFloat(Property.IMAGE_ROTATION_ANGLE);

        PdfXObject xObject = ((Image) (getModelElement())).getXObject();
        if (xObject instanceof PdfImageXObject) {
            imageWidth = ((PdfImageXObject)xObject).getWidth();
            imageHeight = ((PdfImageXObject)xObject).getHeight();
        } else {
            imageWidth = xObject.getPdfObject().getAsArray(PdfName.BBox).getAsFloat(2);
            imageHeight = xObject.getPdfObject().getAsArray(PdfName.BBox).getAsFloat(3);
        }

        width = width == null ? imageWidth : width;
        height = width / imageWidth * imageHeight;

        fixedXPosition = getPropertyAsFloat(Property.X);
        fixedYPosition = getPropertyAsFloat(Property.Y);

        Float horizontalScaling = getPropertyAsFloat(Property.HORIZONTAL_SCALING);
        Float verticalScaling = getPropertyAsFloat(Property.VERTICAL_SCALING);

        AffineTransform t = new AffineTransform();

        if (xObject instanceof PdfFormXObject && width != imageWidth) {
            horizontalScaling *= width / imageWidth;
            verticalScaling *= height / imageHeight;
        }

        if (horizontalScaling != 1) {
            if (xObject instanceof PdfFormXObject) {
                t.scale(horizontalScaling, 1);
            }
            width *= horizontalScaling;
        }
        if (verticalScaling != 1) {
            if (xObject instanceof PdfFormXObject) {
                t.scale(1, verticalScaling);
            }
            height *= verticalScaling;
        }

        float imageItselfScaledWidth = width;
        float imageItselfScaledHeight = height;

        if (angle != null) {
            t.rotate(angle);
            adjustPositionAfterRotation(angle);
        }

        getMatrix(t, imageItselfScaledWidth, imageItselfScaledHeight);

        if (width > layoutBox.getWidth()){
            return new LayoutResult(LayoutResult.NOTHING, occupiedArea, null, this);
        }
        if (height > layoutBox.getHeight()){
            return new LayoutResult(LayoutResult.NOTHING, occupiedArea, null, this);
        }

        occupiedArea.getBBox().moveDown(height);
        occupiedArea.getBBox().setHeight(height);
        occupiedArea.getBBox().setWidth(width);

        Float mx = getProperty(Property.X_DISTANCE);
        Float my = getProperty(Property.Y_DISTANCE);
        if (mx != null && my != null) {
            translateImage(mx, my, t);
            getMatrix(t, imageItselfScaledWidth, imageItselfScaledHeight);
        }

        if (fixedXPosition != null && fixedYPosition != null) {
            occupiedArea.getBBox().setWidth(0);
            occupiedArea.getBBox().setHeight(0);
        }

        return new LayoutResult(LayoutResult.FULL, occupiedArea, null, null);
    } 
                            #location 15 
                            #vulnerability type NULL_DEREFERENCE
#fixed code
                                @Override
    public LayoutResult layout(LayoutContext layoutContext) {
        LayoutArea area = layoutContext.getArea();
        Rectangle layoutBox = area.getBBox();
        occupiedArea = new LayoutArea(area.getPageNumber(), new Rectangle(layoutBox.getX(), layoutBox.getY() + layoutBox.getHeight(), 0, 0));

        width = getPropertyAsFloat(Property.WIDTH);
        Float angle = getPropertyAsFloat(Property.IMAGE_ROTATION_ANGLE);

        PdfXObject xObject = ((Image) (getModelElement())).getXObject();
        imageWidth = xObject.getWidth();
        imageHeight = xObject.getHeight();

        width = width == null ? imageWidth : width;
        height = width / imageWidth * imageHeight;

        fixedXPosition = getPropertyAsFloat(Property.X);
        fixedYPosition = getPropertyAsFloat(Property.Y);

        Float horizontalScaling = getPropertyAsFloat(Property.HORIZONTAL_SCALING);
        Float verticalScaling = getPropertyAsFloat(Property.VERTICAL_SCALING);

        AffineTransform t = new AffineTransform();

        if (xObject instanceof PdfFormXObject && width != imageWidth) {
            horizontalScaling *= width / imageWidth;
            verticalScaling *= height / imageHeight;
        }

        if (horizontalScaling != 1) {
            if (xObject instanceof PdfFormXObject) {
                t.scale(horizontalScaling, 1);
            }
            width *= horizontalScaling;
        }
        if (verticalScaling != 1) {
            if (xObject instanceof PdfFormXObject) {
                t.scale(1, verticalScaling);
            }
            height *= verticalScaling;
        }

        float imageItselfScaledWidth = width;
        float imageItselfScaledHeight = height;

        if (angle != null) {
            t.rotate(angle);
            adjustPositionAfterRotation(angle);
        }

        getMatrix(t, imageItselfScaledWidth, imageItselfScaledHeight);

        if (width > layoutBox.getWidth()){
            return new LayoutResult(LayoutResult.NOTHING, occupiedArea, null, this);
        }
        if (height > layoutBox.getHeight()){
            return new LayoutResult(LayoutResult.NOTHING, occupiedArea, null, this);
        }

        occupiedArea.getBBox().moveDown(height);
        occupiedArea.getBBox().setHeight(height);
        occupiedArea.getBBox().setWidth(width);

        Float mx = getProperty(Property.X_DISTANCE);
        Float my = getProperty(Property.Y_DISTANCE);
        if (mx != null && my != null) {
            translateImage(mx, my, t);
            getMatrix(t, imageItselfScaledWidth, imageItselfScaledHeight);
        }

        if (fixedXPosition != null && fixedYPosition != null) {
            occupiedArea.getBBox().setWidth(0);
            occupiedArea.getBBox().setHeight(0);
        }

        return new LayoutResult(LayoutResult.FULL, occupiedArea, null, null);
    }