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
numRowsVisible = 0;
			if (emptyTablePlaceholder == null) {
				fixNumberOfRows();
				createEmptyTablePlaceholer();
			}
		}
		
		
		
		if (currentRow >= numRowsVisible && getNumRowsVisible() < numRowsInDisplay) {
			currentRow = numRowsVisible-1;
		}
		
		if (numRowsVisible < numRowsInCollection) {
			int extra = numRowsInCollection - numRowsVisible;
			int pageIncrement = numRowsVisible;
			if (pageIncrement > extra)
				pageIncrement = extra;
			slider.setMaximum(numRowsInCollection);
			slider.setMinimum(0);
			slider.setIncrement(1);
			slider.setPageIncrement(pageIncrement);
			slider.setThumb(numRowsInCollection
					- (numRowsInCollection - numRowsVisible));
			slider.setSelection(topRow);
			if (!isSliderVisible()) {
				setSliderVisible(true);
			}
		} else {
			setSliderVisible(false);