Bug 28638 [Preferences] Import Preferences: Crashes on eclipse
bundles/org.eclipse.jface/src/org/eclipse/jface/resource/FontRegistry.java
package org.eclipse.jface.resource;
/*
 * (c) Copyright IBM Corp. 2000, 2001.
 * All Rights Reserved.
 */
import java.util.*;
import org.eclipse.jface.util.*;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.FontData;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
/**
 * A font registry maintains a mapping between symbolic font names 
 * and SWT fonts.
 * <p>
 * A font registry owns all of the font objects registered