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
private void virtualSetSelectionToWidget(List list, boolean reveal) {
		int size = list.size();
		int[] indices = new int[list.size()];
		Item firstItem = null;
		int count = 0;
		HashSet virtualElements = new HashSet();
		for (int i = 0; i < size; ++i) {
			Object o = list.get(i);
			Widget w = findItem(o);
			if (w instanceof Item) {
				Item item = (Item) w;
				indices[count++] = doIndexOf(item);
				if (firstItem == null) {
					firstItem = item;
				}
			} else {
				virtualElements.add(o);
			}
		}
		if (getContentProvider() instanceof ILazyContentProvider) {
			ILazyContentProvider provider = (ILazyContentProvider) getContentProvider();
			
			
			
			
			
			for (int i = 0; virtualElements.size() > 0 && i < doGetItemCount(); i++) {
				provider.updateElement(i);
				Item item = doGetItem(i);
				if (virtualElements.contains(item.getData())) {