Name: jl125535 Date: 12/12/2001


java version "1.4.0-beta3"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-beta3-b84)
Java HotSpot(TM) Client VM (build 1.4.0-beta3-b84, mixed mode)

I wrote an application which loads UnionWay Japanese True Type Font (uwjmg3.ttf
2.9MB) dynamically and tried to render a label with the dynamic loaded font.

On JDK 1.4.0 beta 3 (with either Solaris 8 or Windows 2000). the following
output appears:

% java DynamicFontLoadingTest
Font=java.awt.Font[family=UWJMG3 (SJIS),name=UWJMG3 (SJIS),style=plain,size=1]
Assertion failed: pos <= t->maxPos, file ../../../src/share/native/sun/awt/font/t2k/t2kstrm.c, line 94
Abort (core dumped)

On JDK 1.3.1 (with either Solaris 8 or Windows 2000). the following
output appears:

% java DynamicFontLoadingTest
Font=java.awt.Font[family=UWJMG3 (SJIS),name=UWJMG3 (SJIS),style=plain,size=1]
Assertion failed: size > 0, file ../../../src/share/native/sun/awt/font/fontmanager/fontobjects/fontObject.cpp, line 298
Abort (core dumped)


Sourcecode of the test:

import java.awt.*;
import java.net.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;

/**
 * An application that displays a JLabel in an dynamic loaded true type font
 */
public class DynamicFontLoadingTest extends JPanel {
    static JFrame frame;

    public DynamicFontLoadingTest() {

        try
        {
            // try to load font
            FileInputStream fontStream = new FileInputStream("uwjmg3.ttf");
            Font myFont = Font.createFont(Font.TRUETYPE_FONT, fontStream);
            System.out.println("Font="+myFont);
            fontStream.close();

            // Create a label and set font
            JLabel label = new JLabel("Hello in UnionWay Japanese True Type Font");
            if (myFont != null)
                label.setFont(myFont.deriveFont(java.awt.Font.BOLD, 20));
            add(label);
        }
        catch(Exception e)
        {
            e.printStackTrace();
        }
    }

    public static void main(String s[]) {

        DynamicFontLoadingTest panel = new DynamicFontLoadingTest();
    
        frame = new JFrame("DynamicFontLoadingTest");
        frame.addWindowListener(new WindowAdapter() {
                public void windowClosing(WindowEvent e) {System.exit(0);}
            });
        frame.getContentPane().add("Center", panel);
        frame.pack();
        frame.setVisible(true);
    }
}


The attached font file, "uwjmg3.ttf," must be in the same directory as the class file.
(Review ID: 136806)
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