With row or column selection, the tab/shift-tab section of the Accessibility KeyBinding Specs stated that, "If more than one cell is selected, the focus should wrap to traverse each selected rectangle in turn and then repeat from the beginning..."

Instead it traverses only cells that were selected by the mouse.

Steps to reproduce:
1. Run the latest SwingSet2.
2. Select JTable button.
3. Check Row selection
4. Check Cell selection
5. Point mouse and left click on the first cell (row 1, column 1) to select the whole row.
6. Move mouse pointer two cells down (row 3, column 1) and shift+left click to select the first three rows.
7. Hit tab a few times.
Notice that the tab traverses only row 1, and not every single cell that is highlighted.