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
while (rowsIter.hasPrevious()) {
				TableRow row = (TableRow) rowsIter.previous();
				Control rowControl = row.getRowControl();
				rowControl.setBounds(0, topPosition, width, rowHeight);
				layoutChild(rowControl, false);
				topPosition -= rowHeight;
			}
		}
		
		
		if (userScrollDirection != ScrollEvent.NONE) {
			fireScrollEvent(new ScrollEvent(userScrollDirection, parent));
		}
	}
	int getRowHeight(int clientAreaHeight) {
		int rowControlHeight = rowControl.getSize().y;
		if (maxRowsVisible == Integer.MAX_VALUE) {
			return rowControlHeight;
		}
		if (fittingVertically) {
			int fitControlHeight = clientAreaHeight / maxRowsVisible;
			if (fitControlHeight < rowControlHeight) {
				return rowControlHeight;
			}
			return fitControlHeight;
		}
		return rowControlHeight;
	}
	/**
	 * Utility method: Makes sure that the currently visible top row is the same