Bug 256889 [Viewers] [table] IAE (Index out of bounds) after selecting rows in virtual TableViewer
Steps to reproduce: - Load the attached snippet - Press button "Select all elements" The button's selection listener first calls table.selectAll(); and then loads the current selection of the TableViewer via tableViewer.getSelection(); --> Exception: Exception in thread "main" java.lang.IllegalArgumentException: Index out of bounds at org.eclipse.swt.SWT.error(SWT.java:3761) at org.eclipse.swt.SWT.error(SWT.java:3695) at org.eclipse.swt.SWT.error(SWT.java:3666) at org.eclipse.swt.widgets.Widget.error(Widget.java:463) at org.eclipse.swt.widgets.Table.getItem(Table.java:2262) at org.eclipse.jface.viewers.TableViewer.doGetItem(TableViewer.java:233) at org.eclipse.jface.viewers.AbstractTableViewer.getVirtualSelection(AbstractTableViewer.java:498) at org.eclipse.jface.viewers.AbstractTableViewer.getSelectionFromWidget(AbstractTableViewer.java:468) at org.eclipse.jface.viewers.StructuredViewer.getSelection(StructuredViewer.java:972) at VirtualTableTest$2.widgetSelected(VirtualTableTest.java:98) at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:228) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1003) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3823) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3422) at VirtualTableTest.runTableTest(VirtualTableTest.java:162) at VirtualTableTest.main(VirtualTableTest.java:175)
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/AbstractTableViewer.java
protected void setSelectionToWidget(List list, boolean reveal) {
		if (list == null) {
			doDeselectAll();
			return;
		}
		if (virtualManager != null) {
			virtualSetSelectionToWidget(list, reveal);
			return;
		}
		
		
		if (reveal) {
			int size = list.size();
			Item[] items = new Item[size];
			int count = 0;
			for (int i = 0; i < size; ++i) {
				Object o = list.get(i);
				Widget w = findItem(o);
				if (w instanceof Item) {
					Item item = (Item) w;
					items[count++] = item;
				}
			}
			if (count < size) {
				System.arraycopy(items, 0, items = new Item[count], 0, count);
			}
			doSetSelection(items);
		} else {
			doDeselectAll(); 
			if( ! list.isEmpty() ) {