Bug 87089 [Viewers] LabelProvider.getImage is not invoked after the TreeViewer changes introduced on 24/01/2005
If you compare the versions 1.26 and 1.25 of the method doUpdateItem(Item item, Object element) in org.eclipse.jface.viewers.TreeViewer, you will notice a change in the way the image of the element is calculated. In 1.25, the image of the Element is set in the "buildLabel" method which doesn't have a special treatment for ITableLabelProvider. In 1.26, if the label provider is a ITableLabelProvider, instead of calling ILabelProvider.getImage(Object), the code always invokes ITableLabelProvider.getColunmImage(Object). This change has broken the icons on one of the EMF generated editors (the mapping editor) as the images I will attach here demostrate.
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/TreeViewer.java
* image for the first column, and any remaining columns are blank.
	 */
    public IBaseLabelProvider getLabelProvider() {
        return super.getLabelProvider();
    }
    /* (non-Javadoc)
     * Method declared in AbstractTreeViewer.
     */
    protected Item getParentItem(Item item) {
        return ((TreeItem) item).getParentItem();
    }
    /* (non-Javadoc)
     * Method declared in AbstractTreeViewer.
     */
    protected Item[] getSelection(Control widget) {
        return ((Tree) widget).getSelection();
    }
    /**
     * Returns this tree viewer's tree control.
     *
     * @return the tree control
     */
    public Tree getTree() {
        return tree;
    }
    /*
	 *  (non-Javadoc)
	 * @see org.eclipse.jface.viewers.AbstractTreeViewer#hookControl(org.eclipse.swt.widgets.Control)
	 */
	protected void hookControl(Control control) {