Bug 28638 [Preferences] Import Preferences: Crashes on eclipse
bundles/org.eclipse.jface/src/org/eclipse/jface/resource/FontRegistry.java
* Fires a PropertyChangeEvent.
	 */
	private void fireFontMappingChanged(String name) {
		final String finalName = name;
		final Object[] listeners = this.listeners.getListeners();
		if (listeners.length > 0) {
			
			
			
			PropertyChangeEvent event =
				new PropertyChangeEvent(this, finalName, null, null);
			for (int i = 0; i < listeners.length; ++i) {
				((IPropertyChangeListener) listeners[i]).propertyChange(event);
			}
				
			
		}
	}
	/**
	 * Returns the font data associated with the given symbolic font name.
	 * Returns the default font data if there is no special value associated
	 * with that name.
	 *
	 * @param symbolicName symbolic font name
	 * @return the font
	 */
	public FontData[] getFontData(String symbolicName) {
		Assert.isNotNull(symbolicName);
		Object result = stringToFontData.get(symbolicName);
		if (result == null)