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.ui/src/org/eclipse/birt/report/designer/internal/ui/util/UIUtil.java
return true;
		}
		return false;
	}
	/**
	 * Includes the library into within the given module.
	 * 
	 * @param moduleHandle
	 *            the handle module
	 * @param libraryHandle
	 *            the library to include.
	 * @return true if it included successfully, or false if the operation
	 *         failed.
	 */
	public static boolean includeLibrary( ModuleHandle moduleHandle,
			LibraryHandle libraryHandle ) throws DesignFileException,
			SemanticException
	{
		if ( moduleHandle != libraryHandle
				&& !moduleHandle.isInclude( libraryHandle ) )
		{
			return includeLibrary( moduleHandle, libraryHandle.getFileName( ) );
		}
		return true;
	}
	/**