Question

I need some help with this showDocument in my jnlp aplication.
I trying to show a pdf file in another tab from browser, but the java plugin denied.

My JNLP file has a

  <security>
        <all-permissions/>
  </security>

and my code is:

    AccessController.doPrivileged(new PrivilegedAction()
    {
        @Override
        public Object run()
        {
            try
            {
                applet.getAppletContext().showDocument(new URL("file:///C:/Contrato.PDF"), "_blank");
            }
            catch(Exception e)
            {
                e.printStackTrace();
                showException("Erro ao exibir arquivo:" + e.getMessage());
            }
            return null;
        }
    });

but I receive the exception

    java.lang.SecurityException: showDocument url permission denied

If I try to do showDocument(google.com, _blank) that works…but when I try to show any file, it does not work.

Answer 1

The showDocument(URL) method of AppletContext was never intended for launching files off the local file-system (even when specified as a file protocol URL).

There are at least two alternatives:

1. The JNLP snippet indicates this is a trusted app., so for a 1.6+ app., Desktop.browse(URI) can be invoked.
2. The BasicService of the JNLP API offers the showDocument(URL) method.