Bug 92851 [Viewers] [api] protected field StructuredViewer.colorAndFontCollector
3.1 HEAD colorAndFontCollector protected ColorAndFontCollector colorAndFontCollector This read-write field was added as API in the 3.1 cycle. Exposing fields as API (other than public static final ones) is bad practice because a client can change the field and there's nothing the class can do to prevent or even track that change. All access to read-write field should be through accessor methods, including access from subclasses. Also, this field is missing an @since 3.1 tag.
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/StructuredViewer.java
*            the element
	 */
	protected final void refreshItem(Widget widget, Object element) {
		SafeRunnable.run(new UpdateItemSafeRunnable(widget, element, true));
	}
	/**
	 * Removes the given open listener from this viewer. Has no affect if an
	 * identical listener is not registered.
	 * 
	 * @param listener
	 *            a double-click listener
	 */
	public void removeOpenListener(IOpenListener listener) {
		openListeners.remove(listener);
	}
	/*
	 * (non-Javadoc) Method declared on IPostSelectionProvider.
	 */
	public void removePostSelectionChangedListener(ISelectionChangedListener listener) {
		postSelectionChangedListeners.remove(listener);
	}
	/**
	 * Removes the given double-click listener from this viewer. Has no affect
	 * if an identical listener is not registered.
	 * 
	 * @param listener
	 *            a double-click listener
	 */
	public void removeDoubleClickListener(IDoubleClickListener listener) {
		doubleClickListeners.remove(listener);