Java applet: Read ttf file - access denied

Question

I have the following lines in my Java applet init function:

try {
  this.font = Font.createFont(
    Font.TRUETYPE_FONT,
    new File("fonts/myfont.ttf")
  ).deriveFont(24f);
  GraphicsEnvironment.getLocalGraphicsEnvironment().registerFont(font);
} catch(Exception ex){
  System.out.println(ex);
}

When I open the applet with the appletviewer, the font is loaded as expected. But when I open the HTML page with any web browser, I get this error in the Java Console:

java.security.AccessControlException: access denied (java.io.FilePermission fonts/myfont.ttf read)

and the default font is loaded.

(How) can I fix that?

Answer 1

You can't access local files with applets---this is by design!

You can (and should) embed the font file inside your .jar file, and use Class.getResourceAsStream or the like to access it (Font.createFont has an overload that takes an InputStream, which is exactly the type that Class.getResourceAsStream returns).