Bug 72930 [Viewers] TableViewer.reveal() documentation
The documentation for TableViewer.reveal() does not say that it requires a tableItem and silently ignores all other objects.
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/TableViewer.java
return item;
		}
		return null;
	}
	/*
	 * (non-Javadoc) Method declared on StructuredViewer.
	 */
	protected void doUpdateItem(Widget widget, Object element, boolean fullMap) {
		if (widget instanceof TableItem) {
			final TableItem item = (TableItem) widget;
			
			if (fullMap) {
				associate(element, item);
			} else {
				item.setData(element);
				mapElement(element, item);
			}
			IBaseLabelProvider prov = getLabelProvider();
			ITableLabelProvider tprov = null;
			ILabelProvider lprov = null;
			ITableColorProvider cprov = null;
			if (prov instanceof ITableColorProvider) {
				cprov = (ITableColorProvider) prov;
			}
			if (prov instanceof ITableLabelProvider) {
				tprov = (ITableLabelProvider) prov;
			} else {
				lprov = (ILabelProvider) prov;
			}
			int columnCount = table.getColumnCount();