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
* @since 3.3
	 */
	protected abstract Item doGetItem(int index);
	/**
	 * Returns an array of {@link Item} that are currently selected in the
	 * receiver. The order of the items is unspecified. An empty array indicates
	 * that no items are selected.
	 *
	 * @return an array representing the selection
	 *
	 * @since 3.3
	 */
	protected abstract Item[] doGetSelection();
	/**
	 * Returns the zero-relative indices of the items which are currently
	 * selected in the receiver. The order of the indices is unspecified. The
	 * array is empty if no items are selected.
	 *
	 * @return an array representing the selection
	 *
	 * @since 3.3
	 */
	protected abstract int[] doGetSelectionIndices();
	/**
	 * Clears all the items in the receiver. The text, icon and other attributes
	 * of the items are set to their default values. If the table was created
	 * with the <code>SWT.VIRTUAL</code> style, these attributes are requested
	 * again as needed.
	 *
	 * @since 3.3