FULL PRODUCT VERSION :
davids-mbp:web dgilbert$ java -version
java version "1.8.0_20"
Java(TM) SE Runtime Environment (build 1.8.0_20-b26)
Java HotSpot(TM) 64-Bit Server VM (build 25.20-b23, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
Darwin davids-mbp 13.3.0 Darwin Kernel Version 13.3.0: Tue Jun 3 21:27:35 PDT 2014; root:xnu-2422.110.17~1/RELEASE_X86_64 x86_64

EXTRA RELEVANT SYSTEM CONFIGURATION :
MacBook Pro with retina display

A DESCRIPTION OF THE PROBLEM :
I'm using the FontAwesome font file for icons to display in a JToolBar, but certain characters will not display correctly on my Mac with retina display. You can see the problem with screenshots on StackOverflow:

http://stackoverflow.com/questions/25548143/certain-fontawesome-glyphs-dont-render-in-java-swing-jtoolbar-buttons

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Download the FontAwesome.ttf file (I tried the current version and an older version, both exhibited the same problem). Run this program:

import java.awt.BorderLayout;
import java.awt.EventQueue;
import java.awt.Font;![enter image description here][2]
import java.awt.FontFormatException;
import java.io.IOException;
import java.io.InputStream;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JToolBar;

public class TestFontAwesome {

    public static void main(String[] args) {
        new TestFontAwesome();
    }

    public TestFontAwesome() {
        EventQueue.invokeLater(new Runnable() {
            @Override
            public void run() {
                try (InputStream is = TestFontAwesome.class.getResourceAsStream("/fontawesome-webfont_old.ttf")) {
                    Font font = Font.createFont(Font.TRUETYPE_FONT, is);
                    font = font.deriveFont(Font.PLAIN, 24f);

                    JToolBar toolBar = new JToolBar(JToolBar.VERTICAL);
                    JButton button1 = new JButton("\uf00e");
                    button1.setFont(font);
                    toolBar.add(button1);
                    JButton button2 = new JButton("\uf01e");
                    button2.setFont(font);
                    toolBar.add(button2);
                    JFrame frame = new JFrame("Testing");
                    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                    frame.setLayout(new BorderLayout());
                    frame.add(new JButton("Irrelevant content..."));
                    frame.add(toolBar, BorderLayout.EAST);
                    frame.pack();
                    frame.setLocationRelativeTo(null);
                    frame.setVisible(true);
                } catch (IOException | FontFormatException exp) {
                    exp.printStackTrace();
                }
            }
        });
    }

}





EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
The icon for the first button should show a magnifying glass with a plus symbol.
ACTUAL -
The icon for the first button in the toolbar does not display correctly, it shows three empty rectangles.

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------

import java.awt.BorderLayout;
import java.awt.EventQueue;
import java.awt.Font;![enter image description here][2]
import java.awt.FontFormatException;
import java.io.IOException;
import java.io.InputStream;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JToolBar;

public class TestFontAwesome {

    public static void main(String[] args) {
        new TestFontAwesome();
    }

    public TestFontAwesome() {
        EventQueue.invokeLater(new Runnable() {
            @Override
            public void run() {
                try (InputStream is = TestFontAwesome.class.getResourceAsStream("/fontawesome-webfont_old.ttf")) {
                    Font font = Font.createFont(Font.TRUETYPE_FONT, is);
                    font = font.deriveFont(Font.PLAIN, 24f);

                    JToolBar toolBar = new JToolBar(JToolBar.VERTICAL);
                    JButton button1 = new JButton("\uf00e");
                    button1.setFont(font);
                    toolBar.add(button1);
                    JButton button2 = new JButton("\uf01e");
                    button2.setFont(font);
                    toolBar.add(button2);
                    JFrame frame = new JFrame("Testing");
                    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                    frame.setLayout(new BorderLayout());
                    frame.add(new JButton("Irrelevant content..."));
                    frame.add(toolBar, BorderLayout.EAST);
                    frame.pack();
                    frame.setLocationRelativeTo(null);
                    frame.setVisible(true);
                } catch (IOException | FontFormatException exp) {
                    exp.printStackTrace();
                }
            }
        });
    }

}
---------- END SOURCE ----------