Bug 18015 NPE in structured selection if file opened from repo
F1 1. repository view - open a java file 2. use structured selection java.lang.NullPointerException at org.eclipse.jdt.internal.ui.javaeditor.structureselection.StructureSelectionActi on.getNewSelectionRange(StructureSelectionAction.java:68) at org.eclipse.jdt.internal.ui.javaeditor.structureselection.StructureSelectionActi on.run(StructureSelectionAction.java:53) at org.eclipse.ui.texteditor.RetargetTextEditorAction.run (RetargetTextEditorAction.java:127) at org.eclipse.jface.action.Action.runWithEvent(Action.java:590) at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection (ActionContributionItem.java:407) at org.eclipse.jface.action.ActionContributionItem.handleWidgetEvent (ActionContributionItem.java:361) at org.eclipse.jface.action.ActionContributionItem.access$0 (ActionContributionItem.java:352) at org.eclipse.jface.action.ActionContributionItem$ActionListener.handleEvent (ActionContributionItem.java:47) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:75) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:825) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:1527) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:1289) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1085) at org.eclipse.ui.internal.Workbench.run(Workbench.java:1068) at org.eclipse.core.internal.boot.InternalBootLoader.run (InternalBootLoader.java:739) at org.eclipse.core.boot.BootLoader.run(BootLoader.java:432) at EclipseRuntimeLauncher.main(EclipseRuntimeLauncher.java:24)
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/structureselection/StructureSelectionAction.java
public static final String ENCLOSING= "SelectEnclosingElement"; 
	public static final String HISTORY= "RestoreLastSelection"; 
	private CompilationUnitEditor fEditor;
	private SelectionHistory fSelectionHistory;
	protected StructureSelectionAction(String text, CompilationUnitEditor editor, SelectionHistory history) {
		super(text);
		Assert.isNotNull(editor);
		Assert.isNotNull(history);
		fEditor= editor;
		fSelectionHistory= history;
	}
	
	/*
	 * This constructor is for testing purpose only.
	 */
	protected StructureSelectionAction() {
		super(""); 
	}
	
	/* (non-JavaDoc)
	 * Method declared in IAction.
	 */
	public final  void run() {
		ITextSelection selection= getTextSelection();
		ISourceRange newRange= getNewSelectionRange(createSourceRange(selection), getCompilationUnit());
		
		if (selection.getOffset() == newRange.getOffset() && selection.getLength() == newRange.getLength())
			return;
		fSelectionHistory.remember(new SourceRange(selection.getOffset(), selection.getLength()));
		try {