Bug 146750 [DataBinding][CompositeTable] Crash when dragging scroll bar
Run CompositeTableTest Drag scroll bar down Exception in thread "main" java.lang.IndexOutOfBoundsException: Index: -1, Size: 6 at java.util.LinkedList.entry(LinkedList.java:360) at java.util.LinkedList.get(LinkedList.java:303) at org.eclipse.jface.examples.databinding.compositetable.InternalCompositeTable.currentRow(InternalCompositeTable.java:1671) at org.eclipse.jface.examples.databinding.compositetable.InternalCompositeTable.fireRowDepartEvent(InternalCompositeTable.java:1511) at org.eclipse.jface.examples.databinding.compositetable.InternalCompositeTable.setTopRow(InternalCompositeTable.java:732) at org.eclipse.jface.examples.databinding.compositetable.InternalCompositeTable$2.widgetSelected(InternalCompositeTable.java:1239) at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:90) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1074) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3158) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2838) at org.eclipse.jface.examples.databinding.compositetable.test.CompositeTableTest.main(CompositeTableTest.java:167)
examples/org.eclipse.jface.examples.databinding/src/org/eclipse/jface/examples/databinding/compositetable/InternalCompositeTable.java
if (oldCurrentRow < 0 || oldCurrentRow >= getNumRowsVisible()) {
				if (currentRow >= 0 && currentRow < getNumRowsVisible()) {
					Control newFocusControl = getControl(currentColumn, currentRow);
					if (newFocusControl.isFocusControl()) {
						newFocusControl.notifyListeners(SWT.FocusIn, new Event());
					} else {
						deferredSetFocus(newFocusControl, true);
					}
				}
			} else {
				
				if (currentRow < 0 || currentRow >= getNumRowsVisible()) {
					getControl(currentColumn, oldCurrentRow).notifyListeners(SWT.FocusOut, new Event());
				}
			}
		}
		public void widgetDefaultSelected(SelectionEvent e) {
			widgetSelected(e);
		}
	};
	/**
	 * Scroll wheel event handling.
	 */
	public void handleEvent(Event event) {
		if (event.count > 0) {
			if (topRow > 0) {
				if (!fireRequestRowChangeEvent()) {
					return;