Bug 121796 [Viewers] getControl() contains no javadoc
AbstractListViewer.getControl() contains no javadoc, and is still declared abstract. It serves no purpose in this class. If it needs to remain, it should have javadoc to outline the requirement that an org.swt.widgets.List is expected.
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/AbstractListViewer.java
protected abstract void listSetItems(String[] labels);
    /**
     * Removes all of the items from the underlying widget.
     */
    protected abstract void listRemoveAll();
    /**
     * Removes the item from the underlying widget at the given
     * zero-relative index.
     * 
     * @param index the index for the item
     */
    protected abstract void listRemove(int index);
    /**
     * Selects the items at the given zero-relative indices in the underlying widget.
     * The current selection is cleared before the new items are selected.
     * <p>
     * Indices that are out of range and duplicate indices are ignored.
     * If the receiver is single-select and multiple indices are specified,
     * then all indices are ignored.
     *
     * @param ixs the indices of the items to select
     */
    protected abstract void listSetSelection(int[] ixs);
    /**
     * Shows the selection.  If the selection is already showing in the receiver,
     * this method simply returns.  Otherwise, the items are scrolled until
     * the selection is visible.
     */
    protected abstract void listShowSelection();
    /**