gnujpdf

Since The class PDFGraphics instanciate JFrame in getFontMetrics method
there is a problem to use gnujpdf on a web server.

On linux I got message:
X11 display not available

On windows it works a moment but After severals use of the lib I got :
Out of memory no more window handle.

Here is my suggestion for getFontMetrics :

Line 1435 :
public FontMetrics getFontMetrics(Font font) {
BufferedImage image = new
BufferedImage(100,100,BufferedImage.TYPE_INT_RGB);
// Frame dummy = new Frame();
// dummy.addNotify();
// Image image = dummy.createImage(100, 100);
if (image == null) {
System.err.println("getFontMetrics: image is null");
}
Graphics graphics = image.getGraphics();
return graphics.getFontMetrics(font);

}


I tested this and it works well.