Bug 5571 JAR Packager: Reveal first checked project
If the list of projects in the JAR Packager is long it is possible that the shown projects are not checked even though there are checked projects (due to current selection). ==> reveal the first checked project.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/jarpackager/CheckboxTreeAndListGroup.java
private Object fRoot;
	private Object fCurrentTreeSelection;
	private List fExpandedTreeNodes= new ArrayList();
	private Map fCheckedStateStore= new HashMap(9);
	private List fWhiteCheckedTreeItems= new ArrayList();
	private List fListeners= new ArrayList();
	private ITreeContentProvider fTreeContentProvider;
	private IStructuredContentProvider fListContentProvider;
	private ILabelProvider fTreeLabelProvider;
	private ILabelProvider fListLabelProvider;
	
	private CheckboxTreeViewer fTreeViewer;
	private CheckboxTableViewer fListViewer;
	/**
	 *	Creates an instance of this class.  Use this constructor if you wish to specify
	 *	the width and/or height of the combined widget (to only hardcode one of the
	 *	sizing dimensions, specify the other dimension's value as -1)
	 *
	 *	@param parent org.eclipse.swt.widgets.Composite
	 *	@param style int
	 *  @param rootObject java.lang.Object
	 *	@param childPropertyName java.lang.String
	 *	@param parentPropertyName java.lang.String
	 *	@param listPropertyName java.lang.String
	 *	@param width int
	 *	@param height int
	 */
	public CheckboxTreeAndListGroup(
			Composite parent,