how to open .pdf file?

General
1

Hello, i want to open .pdf file, how can i do it? there is what i have wrote:

 protected void init(VaadinRequest request) {
        final VerticalLayout layout = new VerticalLayout();
        layout.setMargin(true);
        setContent(layout);

        String basepath = VaadinService.getCurrent().getBaseDirectory()
                .getAbsolutePath();
        
        Window win = new Window();
        FileResource resource = new FileResource(new File(basepath
                + "/WEB-INF/doc/java.pdf"));
        File pdfFile = new File("/WEB-INF/doc/java.pdf");
        Embedded pdf = new Embedded(null, resource);
        pdf.setMimeType("pdf");
        Link link = new Link("Link to pdf", resource);

        pdf.setType(Embedded.TYPE_BROWSER);
        layout.addComponent(link);

    }