object Test { 
  val f: File = ???
}

java.lang.ClassCastException: scala.reflect.internal.util.OffsetPosition cannot be cast to scala.reflect.internal.util.RangePosition
	at scala.tools.refactoring.common.Selections$Selection$$anon$2.<init>(Selections.scala:284)
	at scala.tools.refactoring.common.Selections$Selection$class.withPos(Selections.scala:281)
	at scala.tools.refactoring.common.Selections$FileSelection.withPos(Selections.scala:399)
	at scala.tools.refactoring.common.Selections$Selection$class.expand(Selections.scala:245)
	at scala.tools.refactoring.common.Selections$FileSelection.expand(Selections.scala:399)
	at scala.tools.refactoring.implementations.extraction.AutoExtractions$AutoExtraction$.collect(ExtractCode.scala:33)
	at scala.tools.refactoring.implementations.extraction.ExtractionRefactoring$class.prepare(ExtractionRefactoring.scala:27)
	at scala.tools.refactoring.implementations.extraction.ExtractCode.prepare(ExtractCode.scala:7)
	at org.scalaide.refactoring.internal.extract.ExtractionProposal$$anon$1.<init>(ExtractionProposal.scala:87)
	at org.scalaide.refactoring.internal.extract.ExtractionProposal$.org$scalaide$refactoring$internal$extract$ExtractionProposal$$createRefactoring(ExtractionProposal.scala:81)
	at org.scalaide.refactoring.internal.extract.ExtractionProposal$$anonfun$getQuickAssistProposals$1.apply(ExtractionProposal.scala:55)
	at org.scalaide.refactoring.internal.extract.ExtractionProposal$$anonfun$getQuickAssistProposals$1.apply(ExtractionProposal.scala:54)
	at org.scalaide.core.compiler.InteractiveCompilationUnit$$anonfun$withSourceFile$1.apply(InteractiveCompilationUnit.scala:203)
	at org.scalaide.core.compiler.InteractiveCompilationUnit$$anonfun$withSourceFile$1.apply(InteractiveCompilationUnit.scala:203)
	at org.scalaide.core.internal.compiler.PresentationCompilerProxy$$anonfun$internal$1.apply(PresentationCompilerProxy.scala:102)
	at org.scalaide.core.internal.compiler.PresentationCompilerProxy$$anonfun$internal$1.apply(PresentationCompilerProxy.scala:101)
	at scala.Option.flatMap(Option.scala:170)
	at org.scalaide.core.internal.compiler.PresentationCompilerProxy.internal(PresentationCompilerProxy.scala:101)
	at org.scalaide.core.internal.compiler.PresentationCompilerProxy.apply(PresentationCompilerProxy.scala:59)
	at org.scalaide.core.compiler.InteractiveCompilationUnit$class.withSourceFile(InteractiveCompilationUnit.scala:203)
	at org.scalaide.core.internal.jdt.model.ScalaSourceFile.withSourceFile(ScalaSourceFile.scala:75)
	at org.scalaide.refactoring.internal.extract.ExtractionProposal$.getQuickAssistProposals(ExtractionProposal.scala:54)
	at org.scalaide.core.internal.quickfix.ScalaQuickAssistProcessor.getAssists(ScalaQuickAssistProcessor.scala:43)
	at org.eclipse.jdt.internal.ui.text.correction.JavaCorrectionProcessor$SafeAssistCollector.safeRun(JavaCorrectionProcessor.java:403)
	at org.eclipse.jdt.internal.ui.text.correction.JavaCorrectionProcessor$SafeCorrectionProcessorAccess.run(JavaCorrectionProcessor.java:339)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.jdt.internal.ui.text.correction.JavaCorrectionProcessor$SafeCorrectionProcessorAccess.process(JavaCorrectionProcessor.java:329)
	at org.eclipse.jdt.internal.ui.text.correction.JavaCorrectionProcessor.collectAssists(JavaCorrectionProcessor.java:509)
	at org.eclipse.jdt.internal.ui.text.correction.JavaCorrectionProcessor.collectProposals(JavaCorrectionProcessor.java:287)
	at org.eclipse.jdt.internal.ui.text.correction.JavaCorrectionProcessor.computeQuickAssistProposals(JavaCorrectionProcessor.java:242)
	at org.eclipse.jface.text.quickassist.QuickAssistAssistant$ContentAssistProcessor.computeCompletionProposals(QuickAssistAssistant.java:75)
	at org.eclipse.jface.text.contentassist.ContentAssistant.computeCompletionProposals(ContentAssistant.java:1861)
	at org.eclipse.jface.text.contentassist.CompletionProposalPopup.computeProposals(CompletionProposalPopup.java:573)
	at org.eclipse.jface.text.contentassist.CompletionProposalPopup.access$16(CompletionProposalPopup.java:570)
	at org.eclipse.jface.text.contentassist.CompletionProposalPopup$2.run(CompletionProposalPopup.java:505)
	at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
	at org.eclipse.jface.text.contentassist.CompletionProposalPopup.showProposals(CompletionProposalPopup.java:499)
	at org.eclipse.jface.text.contentassist.ContentAssistant.showPossibleCompletions(ContentAssistant.java:1687)
	at org.eclipse.jface.text.quickassist.QuickAssistAssistant.showPossibleQuickAssists(QuickAssistAssistant.java:128)
	at org.eclipse.jdt.internal.ui.text.correction.JavaCorrectionAssistant.showPossibleQuickAssists(JavaCorrectionAssistant.java:193)
	at org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitEditor$AdaptedSourceViewer.doOperation(CompilationUnitEditor.java:195)
	at org.eclipse.ui.texteditor.TextOperationAction$1.run(TextOperationAction.java:128)
	at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
	at org.eclipse.ui.texteditor.TextOperationAction.run(TextOperationAction.java:126)
	at org.eclipse.jface.action.Action.runWithEvent(Action.java:519)
	at org.eclipse.jface.commands.ActionHandler.execute(ActionHandler.java:122)
	at org.eclipse.ui.internal.handlers.E4HandlerProxy.execute(E4HandlerProxy.java:90)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:55)
	at org.eclipse.e4.core.internal.di.InjectorImpl.invokeUsingClass(InjectorImpl.java:247)
	at org.eclipse.e4.core.internal.di.InjectorImpl.invoke(InjectorImpl.java:229)
	at org.eclipse.e4.core.contexts.ContextInjectionFactory.invoke(ContextInjectionFactory.java:132)
	at org.eclipse.e4.core.commands.internal.HandlerServiceHandler.execute(HandlerServiceHandler.java:149)
	at org.eclipse.core.commands.Command.executeWithChecks(Command.java:499)
	at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:508)
	at org.eclipse.e4.core.commands.internal.HandlerServiceImpl.executeHandler(HandlerServiceImpl.java:210)
	at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.executeCommand(KeyBindingDispatcher.java:286)
	at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.press(KeyBindingDispatcher.java:507)
	at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.processKeyEvent(KeyBindingDispatcher.java:558)
	at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.filterKeySequenceBindings(KeyBindingDispatcher.java:378)
	at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.access$0(KeyBindingDispatcher.java:324)
	at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher$KeyDownFilter.handleEvent(KeyBindingDispatcher.java:86)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Display.filterEvent(Display.java:1574)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1387)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1412)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1397)
	at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1424)
	at org.eclipse.swt.widgets.Widget.gtk_key_press_event(Widget.java:824)
	at org.eclipse.swt.widgets.Control.gtk_key_press_event(Control.java:3272)
	at org.eclipse.swt.widgets.Composite.gtk_key_press_event(Composite.java:769)
	at org.eclipse.swt.widgets.Widget.windowProc(Widget.java:2098)
	at org.eclipse.swt.widgets.Control.windowProc(Control.java:5513)
	at org.eclipse.swt.widgets.Display.windowProc(Display.java:4668)
	at org.eclipse.swt.internal.gtk.OS._gtk_main_do_event(Native Method)
	at org.eclipse.swt.internal.gtk.OS.gtk_main_do_event(OS.java:9106)
	at org.eclipse.swt.widgets.Display.eventProc(Display.java:1253)
	at org.eclipse.swt.internal.gtk.OS._g_main_context_iteration(Native Method)
	at org.eclipse.swt.internal.gtk.OS.g_main_context_iteration(OS.java:2477)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3407)