pdfbox/src/main/java/org/apache/pdfbox/pdmodel/fdf/FDFAnnotationPolygon.java [87:109]:
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    private void initVertices(Element element) throws IOException
    {
        XPath xpath = XPathFactory.newInstance().newXPath();
        try
        {
            String vertices = xpath.evaluate("vertices", element);
            if (vertices == null || vertices.isEmpty())
            {
                throw new IOException("Error: missing element 'vertices'");
            }
            String[] verticesValues = vertices.split(",|;");
            float[] values = new float[verticesValues.length];
            for (int i = 0; i < verticesValues.length; i++)
            {
                values[i] = Float.parseFloat(verticesValues[i]);
            }
            setVertices(values);
        }
        catch (XPathExpressionException e)
        {
            LOG.debug("Error while evaluating XPath expression for polygon vertices", e);
        }
    }
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pdfbox/src/main/java/org/apache/pdfbox/pdmodel/fdf/FDFAnnotationPolyline.java [83:105]:
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    private void initVertices(Element element) throws IOException
    {
        XPath xpath = XPathFactory.newInstance().newXPath();
        try
        {
            String vertices = xpath.evaluate("vertices[1]", element);
            if (vertices == null || vertices.isEmpty())
            {
                throw new IOException("Error: missing element 'vertices'");
            }
            String[] verticesValues = vertices.split("[,;]");
            float[] values = new float[verticesValues.length];
            for (int i = 0; i < verticesValues.length; i++)
            {
                values[i] = Float.parseFloat(verticesValues[i]);
            }
            setVertices(values);
        }
        catch (XPathExpressionException e)
        {
            LOG.debug("Error while evaluating XPath expression for polyline vertices", e);
        }
    }
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