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
openListeners.add(listener);
	}
	/*
	 * (non-Javadoc) Method declared on IPostSelectionProvider.
	 */
	public void addPostSelectionChangedListener(ISelectionChangedListener listener) {
		postSelectionChangedListeners.add(listener);
	}
	/**
	 * Adds support for dragging items out of this viewer via a user
	 * drag-and-drop operation.
	 * 
	 * @param operations
	 *            a bitwise OR of the supported drag and drop operation types (
	 *            <code>DROP_COPY</code>,<code>DROP_LINK</code>, and
	 *            <code>DROP_MOVE</code>)
	 * @param transferTypes
	 *            the transfer types that are supported by the drag operation
	 * @param listener
	 *            the callback that will be invoked to set the drag data and to
	 *            cleanup after the drag and drop operation finishes
	 * @see org.eclipse.swt.dnd.DND
	 */
	public void addDragSupport(int operations, Transfer[] transferTypes, DragSourceListener listener) {
		Control myControl = getControl();
		final DragSource dragSource = new DragSource(myControl, operations);
		dragSource.setTransfer(transferTypes);
		dragSource.addDragListener(listener);
	}
	/**