Bug 146159 [Regression]Changing font operation doesn't work other than the first time
Description: The first time changing operation can work well. However, Change it again, it won't work. Steps: 1.Insert lable/text to layout or master page 2.Change the font from serif to cursive, it works well 3.Change the font again Result: The action doesn't work Additional infor: build number:200606080632
UI/org.eclipse.birt.report.designer.core/src/org/eclipse/birt/report/designer/util/DEUtil.java
public static String getEscapedMenuItemText( String src )
	{
		if ( src != null && src.indexOf( '&' ) != -1 )
		{
			src = src.replaceAll( "\\&", "&&" ); 
		}
		return src;
	}
	/**
	 * Returns all font names for current system.
	 * 
	 * NOTES: Java 1.4 only support true type fonts.
	 * 
	 * @return font names.
	 */
	public static String[] getSystemFontNames( )
	{
		return getSystemFontNames( null );
	}
	/**
	 * Returns all font names for current system. NOTES: Java 1.4 only support
	 * true type fonts.
	 * 
	 * @param comparator
	 *            Sort comparator.
	 * @return font names.
	 */
	public static String[] getSystemFontNames( Comparator comparator )
	{
		GraphicsEnvironment ge = GraphicsEnvironment