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
static ISourceRange createSourceRange(int offset, int end){
		int length= end - offset + 1;
		if (length == 0) 
			length= 1;
		return new SourceRange(Math.max(0, offset), length);
	}
	
	static ASTNode[] getChildNodes(ASTNode node){
		if (node instanceof Block)
			return convertToNodeArray(((Block)node).statements());	
		if (node instanceof TypeDeclaration)
			return convertToNodeArray(((TypeDeclaration)node).bodyDeclarations());	
		if (node instanceof CompilationUnit)
			return convertToNodeArray(((CompilationUnit)node).types());	
		return null;	
	}
	
	private static ASTNode[] convertToNodeArray(Collection statements){
		return (ASTNode[]) statements.toArray(new ASTNode[statements.size()]);
	}
	static int findIndex(Object[] array, Object o){
		for (int i= 0; i < array.length; i++) {
			Object object= array[i];
			if (object == o)
				return i;
		}
		return -1;
	}	
}