Bug 111959 [Viewers] ColorAndFontCollector and getColorAndFontCollector() visibility conflict
I'm creating a viewer for a custom table and extending StructuredViewer. In StructuredViewer the method getColorAndFontCollector() is protected so I should be able to access it. But the return type is ColorAndFontCollector which is declared as a package level class thus I can't call the method because the return type isn't visible to viewers outside of the viewers package.
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/StructuredViewer.java
* This method is internal to the framework; subclassers should not call
	 * this method.
	 * </p>
	 * 
	 * @param element
	 * @return the corresponding widget, or <code>null</code> if none
	 */
	protected abstract Widget doFindItem(Object element);
	/**
	 * Copies the attributes of the given element into the given SWT item. The
	 * element map is updated according to the value of <code>fullMap</code>.
	 * If <code>fullMap</code> is <code>true</code> then the current mapping
	 * from element to widgets is removed and the new mapping is added. If
	 * fullmap is <code>false</code> then only the new map gets installed.
	 * Installing only the new map is necessary in cases where only the order of
	 * elements changes but not the set of elements.
	 * <p>
	 * This method is internal to the framework; subclassers should not call
	 * this method.
	 * </p>
	 * 
	 * @param item
	 * @param element element
	 * @param fullMap
	 *            <code>true</code> if mappings are added and removed, and
	 *            <code>false</code> if only the new map gets installed
	 */
	protected abstract void doUpdateItem(Widget item, Object element, boolean fullMap);
	/**
	 * Compares two elements for equality. Uses the element comparer if one has