When I create a file by copying an existing .scala file. Lot of error are raised (Can't save, Unhandled event loop exception,...).
And I have to do the edition of files with an external editor (until I finish the split/refactor of class) else save failed sometimes, I've got wrong compilation error,...

• A clean project doesn't help/fixe
• A shutdown/restart of the ide doesn't help/fixe (other errors are raised)

I suppose, the trouble come from there is 2 same definitions from 2 files, (If I rename top class/object, troubles continue)

some of the exceptions :

scala.tools.nsc.symtab.Symbols$CyclicReference: illegal cyclic reference involving class EmailOwner
	at scala.tools.nsc.symtab.Symbols$Symbol$$anonfun$info$3.apply(Symbols.scala:734)
	at scala.tools.nsc.symtab.Symbols$Symbol$$anonfun$info$3.apply(Symbols.scala:732)
	at scala.Function0$class.apply$mcV$sp(Function0.scala:39)
	at scala.runtime.AbstractFunction0.apply$mcV$sp(AbstractFunction0.scala:17)
	at scala.tools.nsc.symtab.Symbols$Symbol.lock(Symbols.scala:377)
	at scala.tools.nsc.symtab.Symbols$Symbol.info(Symbols.scala:732)
	at scala.tools.nsc.symtab.Symbols$Symbol.ancestors(Symbols.scala:1193)
	at scala.tools.refactoring.analysis.DependentSymbolExpanders$OverridesInClassHierarchy$$anonfun$allSubClasses$1$1.apply(SymbolExpanders.scala:75)
	at scala.tools.refactoring.analysis.DependentSymbolExpanders$OverridesInClassHierarchy$$anonfun$allSubClasses$1$1.apply(SymbolExpanders.scala:72)
	at scala.collection.TraversableLike$$anonfun$filter$1.apply(TraversableLike.scala:240)
	at scala.collection.LinearSeqOptimized$class.foreach(LinearSeqOptimized.scala:61)
	at scala.collection.immutable.List.foreach(List.scala:45)
	at scala.collection.TraversableLike$class.filter(TraversableLike.scala:239)
	at scala.collection.immutable.List.filter(List.scala:45)
	at scala.tools.refactoring.analysis.DependentSymbolExpanders$OverridesInClassHierarchy$class.scala$tools$refactoring$analysis$DependentSymbolExpanders$OverridesInClassHierarchy$class$$allSubClasses$1(SymbolExpanders.scala:72)
	at scala.tools.refactoring.analysis.DependentSymbolExpanders$OverridesInClassHierarchy$class.expand(SymbolExpanders.scala:79)
	at scala.tools.refactoring.analysis.GlobalIndexes$GlobalIndex$$anon$1.expand(GlobalIndexes.scala:24)
	at scala.tools.refactoring.analysis.GlobalIndexes$GlobalIndex$$anonfun$expandSymbols$1$1.apply(GlobalIndexes.scala:51)
	at scala.tools.refactoring.analysis.GlobalIndexes$GlobalIndex$$anonfun$expandSymbols$1$1.apply(GlobalIndexes.scala:51)
	at scala.collection.TraversableLike$$anonfun$flatMap$1.apply(TraversableLike.scala:227)
	at scala.collection.TraversableLike$$anonfun$flatMap$1.apply(TraversableLike.scala:227)
	at scala.collection.LinearSeqOptimized$class.foreach(LinearSeqOptimized.scala:61)
	at scala.collection.immutable.List.foreach(List.scala:45)
	at scala.collection.TraversableLike$class.flatMap(TraversableLike.scala:227)
	at scala.collection.immutable.List.flatMap(List.scala:45)
	at scala.tools.refactoring.analysis.GlobalIndexes$GlobalIndex$class.expandSymbols$1(GlobalIndexes.scala:51)
	at scala.tools.refactoring.analysis.GlobalIndexes$GlobalIndex$class.expandSymbol(GlobalIndexes.scala:54)
	at scala.tools.refactoring.analysis.GlobalIndexes$GlobalIndex$$anon$1.expandSymbol(GlobalIndexes.scala:24)
	at scala.tools.refactoring.analysis.GlobalIndexes$GlobalIndex$class.occurences(GlobalIndexes.scala:58)
	at scala.tools.refactoring.analysis.GlobalIndexes$GlobalIndex$$anon$1.occurences(GlobalIndexes.scala:24)
	at scala.tools.eclipse.markoccurrences.ScalaOccurrencesFinder$$anonfun$findOccurrences$1$$anonfun$apply$1.apply(ScalaOccurrencesFinder.scala:36)
	at scala.tools.eclipse.markoccurrences.ScalaOccurrencesFinder$$anonfun$findOccurrences$1$$anonfun$apply$1.apply(ScalaOccurrencesFinder.scala:26)
	at scala.Option.flatMap(Option.scala:81)
	at scala.tools.eclipse.markoccurrences.ScalaOccurrencesFinder$$anonfun$findOccurrences$1.apply(ScalaOccurrencesFinder.scala:26)
	at scala.tools.eclipse.markoccurrences.ScalaOccurrencesFinder$$anonfun$findOccurrences$1.apply(ScalaOccurrencesFinder.scala:19)
	at scala.tools.eclipse.util.Cached$$anonfun$apply$1.apply$mcV$sp(Cached.scala:22)
	at scala.tools.eclipse.util.Cached$$anonfun$apply$1.apply(Cached.scala:21)
	at scala.tools.eclipse.util.Cached$$anonfun$apply$1.apply(Cached.scala:21)
	at scala.tools.eclipse.util.Cached$class.locked(Cached.scala:83)
	at scala.tools.eclipse.util.Cached$class.apply(Cached.scala:20)
	at scala.tools.eclipse.ScalaPresentationCompiler$CachedCompilerResult.apply(ScalaPresentationCompiler.scala:64)
	at scala.tools.eclipse.ScalaPresentationCompiler.withCompilerResult(ScalaPresentationCompiler.scala:99)
	at scala.tools.eclipse.ScalaProject$$anonfun$withCompilerResult$1.apply(ScalaProject.scala:367)
	at scala.tools.eclipse.ScalaProject$$anonfun$withCompilerResult$1.apply(ScalaProject.scala:366)
	at scala.tools.eclipse.util.Cached$$anonfun$apply$1.apply$mcV$sp(Cached.scala:22)
	at scala.tools.eclipse.util.Cached$$anonfun$apply$1.apply(Cached.scala:21)
	at scala.tools.eclipse.util.Cached$$anonfun$apply$1.apply(Cached.scala:21)
	at scala.tools.eclipse.util.Cached$class.locked(Cached.scala:83)
	at scala.tools.eclipse.util.Cached$class.apply(Cached.scala:20)
	at scala.tools.eclipse.ScalaProject$$anon$1.apply(ScalaProject.scala:40)
	at scala.tools.eclipse.ScalaProject.withPresentationCompiler(ScalaProject.scala:362)
	at scala.tools.eclipse.ScalaProject.withCompilerResult(ScalaProject.scala:366)
	at scala.tools.eclipse.javaelements.ScalaCompilationUnit$class.withCompilerResult(ScalaCompilationUnit.scala:58)
	at scala.tools.eclipse.javaelements.ScalaSourceFile.withCompilerResult(ScalaSourceFile.scala:40)
	at scala.tools.eclipse.markoccurrences.ScalaOccurrencesFinder.findOccurrences(ScalaOccurrencesFinder.scala:19)
	at scala.tools.eclipse.ScalaSourceFileEditor.getAnnotations(ScalaSourceFileEditor.scala:111)
	at scala.tools.eclipse.ScalaSourceFileEditor.updateOccurrenceAnnotations(ScalaSourceFileEditor.scala:99)
	at scala.tools.eclipse.ScalaSourceFileEditor$$anon$1.selectionChanged(ScalaSourceFileEditor.scala:135)
	at org.eclipse.ui.internal.AbstractSelectionService.firePostSelection(AbstractSelectionService.java:179)
	at org.eclipse.ui.internal.AbstractSelectionService$2.selectionChanged(AbstractSelectionService.java:71)
	at org.eclipse.jface.text.TextViewer.firePostSelectionChanged(TextViewer.java:2745)
	at org.eclipse.jface.text.TextViewer.firePostSelectionChanged(TextViewer.java:2693)
	at org.eclipse.jface.text.TextViewer$5.run(TextViewer.java:2672)
	at org.eclipse.swt.widgets.Display.timerProc(Display.java:4118)
	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:2224)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3169)
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2629)
	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2593)
	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2427)
	at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:670)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:663)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:115)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:369)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:619)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:574)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1407)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1383)

Save Failed
java.lang.Error: no-symbol does not have owner
	at scala.tools.nsc.symtab.SymbolTable.abort(SymbolTable.scala:33)
	at scala.tools.nsc.symtab.Symbols$NoSymbol$.owner(Symbols.scala:2048)
	at scala.tools.eclipse.javaelements.ScalaStructureBuilder$StructureBuilderTraverser$ModuleOwner$class.addModule(ScalaStructureBuilder.scala:378)
	at scala.tools.eclipse.javaelements.ScalaStructureBuilder$StructureBuilderTraverser$Builder.addModule(ScalaStructureBuilder.scala:727)
	at scala.tools.eclipse.javaelements.ScalaStructureBuilder$StructureBuilderTraverser.traverse(ScalaStructureBuilder.scala:775)
	at scala.tools.nsc.ast.Trees$Traverser$$anonfun$traverseStats$1.apply(Trees.scala:889)
	at scala.tools.nsc.ast.Trees$Traverser$$anonfun$traverseStats$1.apply(Trees.scala:887)
	at scala.collection.LinearSeqOptimized$class.foreach(LinearSeqOptimized.scala:61)
	at scala.collection.immutable.List.foreach(List.scala:45)
	at scala.tools.nsc.ast.Trees$Traverser.traverseStats(Trees.scala:887)
	at scala.tools.eclipse.javaelements.ScalaStructureBuilder$StructureBuilderTraverser.traverse(ScalaStructureBuilder.scala:817)
	at scala.tools.eclipse.javaelements.ScalaStructureBuilder$StructureBuilderTraverser$$anonfun$traverse$2$$anonfun$apply$mcV$sp$1.apply$mcV$sp(ScalaStructureBuilder.scala:771)
	at scala.tools.eclipse.javaelements.ScalaStructureBuilder$StructureBuilderTraverser.atBuilder(ScalaStructureBuilder.scala:836)
	at scala.tools.eclipse.javaelements.ScalaStructureBuilder$StructureBuilderTraverser$$anonfun$traverse$2.apply$mcV$sp(ScalaStructureBuilder.scala:768)
	at scala.reflect.generic.Trees$Traverser.atOwner(Trees.scala:581)
	at scala.tools.eclipse.javaelements.ScalaStructureBuilder$StructureBuilderTraverser.traverse(ScalaStructureBuilder.scala:767)
	at scala.reflect.generic.Trees$Traverser$$anonfun$traverseTrees$1.apply(Trees.scala:566)
	at scala.reflect.generic.Trees$Traverser$$anonfun$traverseTrees$1.apply(Trees.scala:566)
	at scala.collection.LinearSeqOptimized$class.foreach(LinearSeqOptimized.scala:61)
	at scala.collection.immutable.List.foreach(List.scala:45)
	at scala.reflect.generic.Trees$Traverser.traverseTrees(Trees.scala:566)
	at scala.reflect.generic.Trees$Traverser.traverse(Trees.scala:498)
	at scala.tools.nsc.ast.Trees$Traverser.traverse(Trees.scala:881)
	at scala.tools.eclipse.javaelements.ScalaStructureBuilder$StructureBuilderTraverser.traverse(ScalaStructureBuilder.scala:829)
	at scala.reflect.generic.Trees$Traverser$$anonfun$traverseTrees$1.apply(Trees.scala:566)
	at scala.reflect.generic.Trees$Traverser$$anonfun$traverseTrees$1.apply(Trees.scala:566)
	at scala.collection.LinearSeqOptimized$class.foreach(LinearSeqOptimized.scala:61)
	at scala.collection.immutable.List.foreach(List.scala:45)
	at scala.reflect.generic.Trees$Traverser.traverseTrees(Trees.scala:566)
	at scala.reflect.generic.Trees$Traverser.traverse(Trees.scala:534)
	at scala.tools.nsc.ast.Trees$Traverser.traverse(Trees.scala:881)
	at scala.tools.eclipse.javaelements.ScalaStructureBuilder$StructureBuilderTraverser.traverse(ScalaStructureBuilder.scala:829)
	at scala.reflect.generic.Trees$Traverser$$anonfun$traverseTrees$1.apply(Trees.scala:566)
	at scala.reflect.generic.Trees$Traverser$$anonfun$traverseTrees$1.apply(Trees.scala:566)
	at scala.collection.LinearSeqOptimized$class.foreach(LinearSeqOptimized.scala:61)
	at scala.collection.immutable.List.foreach(List.scala:45)
	at scala.reflect.generic.Trees$Traverser.traverseTrees(Trees.scala:566)
	at scala.reflect.generic.Trees$Traverser.traverse(Trees.scala:498)
	at scala.tools.nsc.ast.Trees$Traverser.traverse(Trees.scala:881)
	at scala.tools.eclipse.javaelements.ScalaStructureBuilder$StructureBuilderTraverser.traverse(ScalaStructureBuilder.scala:829)
	at scala.reflect.generic.Trees$Traverser$$anonfun$traverseTrees$1.apply(Trees.scala:566)
	at scala.reflect.generic.Trees$Traverser$$anonfun$traverseTrees$1.apply(Trees.scala:566)
	at scala.collection.LinearSeqOptimized$class.foreach(LinearSeqOptimized.scala:61)
	at scala.collection.immutable.List.foreach(List.scala:45)
	at scala.reflect.generic.Trees$Traverser.traverseTrees(Trees.scala:566)
	at scala.reflect.generic.Trees$Traverser.traverse(Trees.scala:534)
	at scala.tools.nsc.ast.Trees$Traverser.traverse(Trees.scala:881)
	at scala.tools.eclipse.javaelements.ScalaStructureBuilder$StructureBuilderTraverser.traverse(ScalaStructureBuilder.scala:829)
	at scala.tools.nsc.ast.Trees$Traverser$$anonfun$traverseStats$1$$anonfun$apply$1.apply$mcV$sp(Trees.scala:888)
	at scala.reflect.generic.Trees$Traverser.atOwner(Trees.scala:581)
	at scala.tools.nsc.ast.Trees$Traverser$$anonfun$traverseStats$1.apply(Trees.scala:888)
	at scala.tools.nsc.ast.Trees$Traverser$$anonfun$traverseStats$1.apply(Trees.scala:887)
	at scala.collection.LinearSeqOptimized$class.foreach(LinearSeqOptimized.scala:61)
	at scala.collection.immutable.List.foreach(List.scala:45)
	at scala.tools.nsc.ast.Trees$Traverser.traverseStats(Trees.scala:887)
	at scala.tools.eclipse.javaelements.ScalaStructureBuilder$StructureBuilderTraverser.traverse(ScalaStructureBuilder.scala:817)
	at scala.tools.eclipse.javaelements.ScalaStructureBuilder$StructureBuilderTraverser$$anonfun$traverse$2$$anonfun$apply$mcV$sp$1.apply$mcV$sp(ScalaStructureBuilder.scala:771)
	at scala.tools.eclipse.javaelements.ScalaStructureBuilder$StructureBuilderTraverser.atBuilder(ScalaStructureBuilder.scala:836)
	at scala.tools.eclipse.javaelements.ScalaStructureBuilder$StructureBuilderTraverser$$anonfun$traverse$2.apply$mcV$sp(ScalaStructureBuilder.scala:768)
	at scala.reflect.generic.Trees$Traverser.atOwner(Trees.scala:581)
	at scala.tools.eclipse.javaelements.ScalaStructureBuilder$StructureBuilderTraverser.traverse(ScalaStructureBuilder.scala:767)
	at scala.reflect.generic.Trees$Traverser$$anonfun$traverseTrees$1.apply(Trees.scala:566)
	at scala.reflect.generic.Trees$Traverser$$anonfun$traverseTrees$1.apply(Trees.scala:566)
	at scala.collection.LinearSeqOptimized$class.foreach(LinearSeqOptimized.scala:61)
	at scala.collection.immutable.List.foreach(List.scala:45)
	at scala.reflect.generic.Trees$Traverser.traverseTrees(Trees.scala:566)
	at scala.reflect.generic.Trees$Traverser$$anonfun$traverse$1.apply$mcV$sp(Trees.scala:465)
	at scala.reflect.generic.Trees$Traverser.atOwner(Trees.scala:581)
	at scala.reflect.generic.Trees$Traverser.traverse(Trees.scala:464)
	at scala.tools.nsc.ast.Trees$Traverser.traverse(Trees.scala:881)
	at scala.tools.eclipse.javaelements.ScalaStructureBuilder$StructureBuilderTraverser.scala$tools$eclipse$javaelements$ScalaStructureBuilder$StructureBuilderTraverser$$super$traverse(ScalaStructureBuilder.scala:763)
	at scala.tools.eclipse.javaelements.ScalaStructureBuilder$StructureBuilderTraverser$$anonfun$traverse$1.apply$mcV$sp(ScalaStructureBuilder.scala:763)
	at scala.tools.eclipse.javaelements.ScalaStructureBuilder$StructureBuilderTraverser.atBuilder(ScalaStructureBuilder.scala:836)
	at scala.tools.eclipse.javaelements.ScalaStructureBuilder$StructureBuilderTraverser.traverse(ScalaStructureBuilder.scala:763)
	at scala.tools.eclipse.javaelements.ScalaCompilationUnit$$anonfun$buildStructure$1.apply(ScalaCompilationUnit.scala:96)
	at scala.tools.eclipse.javaelements.ScalaCompilationUnit$$anonfun$buildStructure$1.apply(ScalaCompilationUnit.scala:87)
	at scala.tools.eclipse.util.Cached$$anonfun$apply$1.apply$mcV$sp(Cached.scala:22)
	at scala.tools.eclipse.util.Cached$$anonfun$apply$1.apply(Cached.scala:21)
	at scala.tools.eclipse.util.Cached$$anonfun$apply$1.apply(Cached.scala:21)
	at scala.tools.eclipse.util.Cached$class.locked(Cached.scala:83)
	at scala.tools.eclipse.util.Cached$class.apply(Cached.scala:20)
	at scala.tools.eclipse.ScalaPresentationCompiler$CachedCompilerResult.apply(ScalaPresentationCompiler.scala:64)
	at scala.tools.eclipse.ScalaPresentationCompiler.withCompilerResult(ScalaPresentationCompiler.scala:99)
	at scala.tools.eclipse.ScalaProject$$anonfun$withCompilerResult$1.apply(ScalaProject.scala:367)
	at scala.tools.eclipse.ScalaProject$$anonfun$withCompilerResult$1.apply(ScalaProject.scala:366)
	at scala.tools.eclipse.util.Cached$$anonfun$apply$1.apply$mcV$sp(Cached.scala:22)
	at scala.tools.eclipse.util.Cached$$anonfun$apply$1.apply(Cached.scala:21)
	at scala.tools.eclipse.util.Cached$$anonfun$apply$1.apply(Cached.scala:21)
	at scala.tools.eclipse.util.Cached$class.locked(Cached.scala:83)
	at scala.tools.eclipse.util.Cached$class.apply(Cached.scala:20)
	at scala.tools.eclipse.ScalaProject$$anon$1.apply(ScalaProject.scala:40)
	at scala.tools.eclipse.ScalaProject.withPresentationCompiler(ScalaProject.scala:362)
	at scala.tools.eclipse.ScalaProject.withCompilerResult(ScalaProject.scala:366)
	at scala.tools.eclipse.javaelements.ScalaCompilationUnit$class.withCompilerResult(ScalaCompilationUnit.scala:58)
	at scala.tools.eclipse.javaelements.ScalaSourceFile.withCompilerResult(ScalaSourceFile.scala:40)
	at scala.tools.eclipse.javaelements.ScalaCompilationUnit$class.buildStructure(ScalaCompilationUnit.scala:87)
	at scala.tools.eclipse.javaelements.ScalaSourceFile.buildStructure(ScalaSourceFile.scala:40)
	at org.eclipse.jdt.internal.core.Openable.generateInfos(Openable.java:258)
	at org.eclipse.jdt.internal.core.JavaElement.openWhenClosed(JavaElement.java:515)
	at scala.tools.eclipse.javaelements.ScalaSourceFile.makeConsistent(ScalaSourceFile.scala:65)
	at org.eclipse.jdt.internal.core.CompilationUnit.makeConsistent(CompilationUnit.java:1064)
	at org.eclipse.jdt.internal.core.CommitWorkingCopyOperation.executeOperation(CommitWorkingCopyOperation.java:124)
	at org.eclipse.jdt.internal.core.JavaModelOperation.run(JavaModelOperation.java:728)
	at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1975)
	at org.eclipse.jdt.internal.core.JavaModelOperation.runOperation(JavaModelOperation.java:793)
	at org.eclipse.jdt.internal.core.CompilationUnit.commitWorkingCopy(CompilationUnit.java:391)
	at org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitDocumentProvider.commitWorkingCopy(CompilationUnitDocumentProvider.java:1361)
	at org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitDocumentProvider$4.execute(CompilationUnitDocumentProvider.java:1432)
	at org.eclipse.ui.editors.text.TextFileDocumentProvider$DocumentProviderOperation.run(TextFileDocumentProvider.java:132)
	at org.eclipse.ui.actions.WorkspaceModifyDelegatingOperation.execute(WorkspaceModifyDelegatingOperation.java:69)
	at org.eclipse.ui.actions.WorkspaceModifyOperation$1.run(WorkspaceModifyOperation.java:106)
	at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1975)
	at org.eclipse.ui.actions.WorkspaceModifyOperation.run(WorkspaceModifyOperation.java:118)
	at org.eclipse.ui.internal.editors.text.WorkspaceOperationRunner.run(WorkspaceOperationRunner.java:75)
	at org.eclipse.ui.internal.editors.text.WorkspaceOperationRunner.run(WorkspaceOperationRunner.java:65)
	at org.eclipse.ui.editors.text.TextFileDocumentProvider.executeOperation(TextFileDocumentProvider.java:456)
	at org.eclipse.ui.editors.text.TextFileDocumentProvider.saveDocument(TextFileDocumentProvider.java:772)
	at org.eclipse.ui.texteditor.AbstractTextEditor.performSave(AbstractTextEditor.java:4868)
	at org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitEditor.performSave(CompilationUnitEditor.java:1230)
	at org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitEditor.doSave(CompilationUnitEditor.java:1283)
	at scala.tools.eclipse.ScalaSourceFileEditor.doSave(ScalaSourceFileEditor.scala:86)
	at org.eclipse.ui.texteditor.AbstractTextEditor$TextEditorSavable.doSave(AbstractTextEditor.java:6991)
	at org.eclipse.ui.Saveable.doSave(Saveable.java:214)
	at org.eclipse.ui.internal.SaveableHelper.doSaveModel(SaveableHelper.java:349)
	at org.eclipse.ui.internal.SaveableHelper$3.run(SaveableHelper.java:195)
	at org.eclipse.ui.internal.SaveableHelper$5.run(SaveableHelper.java:277)
	at org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:464)
	at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:372)
	at org.eclipse.jface.window.ApplicationWindow$1.run(ApplicationWindow.java:759)
	at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
	at org.eclipse.jface.window.ApplicationWindow.run(ApplicationWindow.java:756)
	at org.eclipse.ui.internal.WorkbenchWindow.run(WorkbenchWindow.java:2600)
	at org.eclipse.ui.internal.SaveableHelper.runProgressMonitorOperation(SaveableHelper.java:285)
	at org.eclipse.ui.internal.SaveableHelper.runProgressMonitorOperation(SaveableHelper.java:264)
	at org.eclipse.ui.internal.SaveableHelper.saveModels(SaveableHelper.java:207)
	at org.eclipse.ui.internal.SaveableHelper.savePart(SaveableHelper.java:144)
	at org.eclipse.ui.internal.EditorManager.savePart(EditorManager.java:1369)
	at org.eclipse.ui.internal.WorkbenchPage.savePart(WorkbenchPage.java:3334)
	at org.eclipse.ui.internal.WorkbenchPage.saveEditor(WorkbenchPage.java:3347)
	at org.eclipse.ui.internal.SaveAction.run(SaveAction.java:76)
	at org.eclipse.jface.action.Action.runWithEvent(Action.java:498)
	at org.eclipse.ui.commands.ActionHandler.execute(ActionHandler.java:185)
	at org.eclipse.ui.internal.handlers.LegacyHandlerWrapper.execute(LegacyHandlerWrapper.java:109)
	at org.eclipse.core.commands.Command.executeWithChecks(Command.java:476)
	at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:508)
	at org.eclipse.ui.internal.handlers.HandlerService.executeCommand(HandlerService.java:169)
	at org.eclipse.ui.internal.keys.WorkbenchKeyboard.executeCommand(WorkbenchKeyboard.java:468)
	at org.eclipse.ui.internal.keys.WorkbenchKeyboard.press(WorkbenchKeyboard.java:786)
	at org.eclipse.ui.internal.keys.WorkbenchKeyboard.processKeyEvent(WorkbenchKeyboard.java:885)
	at org.eclipse.ui.internal.keys.WorkbenchKeyboard.filterKeySequenceBindings(WorkbenchKeyboard.java:567)
	at org.eclipse.ui.internal.keys.WorkbenchKeyboard.access$3(WorkbenchKeyboard.java:508)
	at org.eclipse.ui.internal.keys.WorkbenchKeyboard$KeyDownFilter.handleEvent(WorkbenchKeyboard.java:123)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Display.filterEvent(Display.java:1525)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1257)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1282)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1267)
	at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1294)
	at org.eclipse.swt.widgets.Widget.gtk_key_press_event(Widget.java:730)
	at org.eclipse.swt.widgets.Control.gtk_key_press_event(Control.java:2839)
	at org.eclipse.swt.widgets.Composite.gtk_key_press_event(Composite.java:734)
	at org.eclipse.swt.widgets.Widget.windowProc(Widget.java:1743)
	at org.eclipse.swt.widgets.Control.windowProc(Control.java:4794)
	at org.eclipse.swt.widgets.Display.windowProc(Display.java:4372)
	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:8163)
	at org.eclipse.swt.widgets.Display.eventProc(Display.java:1239)
	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:2224)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3169)
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2629)
	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2593)
	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2427)
	at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:670)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:663)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:115)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:369)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:619)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:574)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1407)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1383)

scala.tools.nsc.symtab.Symbols$CyclicReference: illegal cyclic reference involving class EmailOwner
	at scala.tools.nsc.symtab.Symbols$Symbol$$anonfun$info$3.apply(Symbols.scala:734)
	at scala.tools.nsc.symtab.Symbols$Symbol$$anonfun$info$3.apply(Symbols.scala:732)
	at scala.Function0$class.apply$mcV$sp(Function0.scala:39)
	at scala.runtime.AbstractFunction0.apply$mcV$sp(AbstractFunction0.scala:17)
	at scala.tools.nsc.symtab.Symbols$Symbol.lock(Symbols.scala:377)
	at scala.tools.nsc.symtab.Symbols$Symbol.info(Symbols.scala:732)
	at scala.tools.nsc.symtab.Symbols$Symbol.ancestors(Symbols.scala:1193)
	at scala.tools.refactoring.analysis.DependentSymbolExpanders$OverridesInClassHierarchy$$anonfun$allSubClasses$1$1.apply(SymbolExpanders.scala:75)
	at scala.tools.refactoring.analysis.DependentSymbolExpanders$OverridesInClassHierarchy$$anonfun$allSubClasses$1$1.apply(SymbolExpanders.scala:72)
	at scala.collection.TraversableLike$$anonfun$filter$1.apply(TraversableLike.scala:240)
	at scala.collection.LinearSeqOptimized$class.foreach(LinearSeqOptimized.scala:61)
	at scala.collection.immutable.List.foreach(List.scala:45)
	at scala.collection.TraversableLike$class.filter(TraversableLike.scala:239)
	at scala.collection.immutable.List.filter(List.scala:45)
	at scala.tools.refactoring.analysis.DependentSymbolExpanders$OverridesInClassHierarchy$class.scala$tools$refactoring$analysis$DependentSymbolExpanders$OverridesInClassHierarchy$class$$allSubClasses$1(SymbolExpanders.scala:72)
	at scala.tools.refactoring.analysis.DependentSymbolExpanders$OverridesInClassHierarchy$class.expand(SymbolExpanders.scala:79)
	at scala.tools.refactoring.analysis.GlobalIndexes$GlobalIndex$$anon$1.expand(GlobalIndexes.scala:24)
	at scala.tools.refactoring.analysis.GlobalIndexes$GlobalIndex$$anonfun$expandSymbols$1$1.apply(GlobalIndexes.scala:51)
	at scala.tools.refactoring.analysis.GlobalIndexes$GlobalIndex$$anonfun$expandSymbols$1$1.apply(GlobalIndexes.scala:51)
	at scala.collection.TraversableLike$$anonfun$flatMap$1.apply(TraversableLike.scala:227)
	at scala.collection.TraversableLike$$anonfun$flatMap$1.apply(TraversableLike.scala:227)
	at scala.collection.LinearSeqOptimized$class.foreach(LinearSeqOptimized.scala:61)
	at scala.collection.immutable.List.foreach(List.scala:45)
	at scala.collection.TraversableLike$class.flatMap(TraversableLike.scala:227)
	at scala.collection.immutable.List.flatMap(List.scala:45)
	at scala.tools.refactoring.analysis.GlobalIndexes$GlobalIndex$class.expandSymbols$1(GlobalIndexes.scala:51)
	at scala.tools.refactoring.analysis.GlobalIndexes$GlobalIndex$class.expandSymbol(GlobalIndexes.scala:54)
	at scala.tools.refactoring.analysis.GlobalIndexes$GlobalIndex$$anon$1.expandSymbol(GlobalIndexes.scala:24)
	at scala.tools.refactoring.analysis.GlobalIndexes$GlobalIndex$class.occurences(GlobalIndexes.scala:58)
	at scala.tools.refactoring.analysis.GlobalIndexes$GlobalIndex$$anon$1.occurences(GlobalIndexes.scala:24)
	at scala.tools.eclipse.markoccurrences.ScalaOccurrencesFinder$$anonfun$findOccurrences$1$$anonfun$apply$1.apply(ScalaOccurrencesFinder.scala:36)
	at scala.tools.eclipse.markoccurrences.ScalaOccurrencesFinder$$anonfun$findOccurrences$1$$anonfun$apply$1.apply(ScalaOccurrencesFinder.scala:26)
	at scala.Option.flatMap(Option.scala:81)
	at scala.tools.eclipse.markoccurrences.ScalaOccurrencesFinder$$anonfun$findOccurrences$1.apply(ScalaOccurrencesFinder.scala:26)
	at scala.tools.eclipse.markoccurrences.ScalaOccurrencesFinder$$anonfun$findOccurrences$1.apply(ScalaOccurrencesFinder.scala:19)
	at scala.tools.eclipse.util.Cached$$anonfun$apply$3.apply(Cached.scala:58)
	at scala.tools.eclipse.util.Cached$class.locked(Cached.scala:83)
	at scala.tools.eclipse.util.Cached$class.apply(Cached.scala:56)
	at scala.tools.eclipse.ScalaPresentationCompiler$CachedCompilerResult.apply(ScalaPresentationCompiler.scala:64)
	at scala.tools.eclipse.ScalaPresentationCompiler.withCompilerResult(ScalaPresentationCompiler.scala:99)
	at scala.tools.eclipse.ScalaProject$$anonfun$withCompilerResult$1.apply(ScalaProject.scala:367)
	at scala.tools.eclipse.ScalaProject$$anonfun$withCompilerResult$1.apply(ScalaProject.scala:366)
	at scala.tools.eclipse.util.Cached$$anonfun$apply$3.apply(Cached.scala:58)
	at scala.tools.eclipse.util.Cached$class.locked(Cached.scala:83)
	at scala.tools.eclipse.util.Cached$class.apply(Cached.scala:56)
	at scala.tools.eclipse.ScalaProject$$anon$1.apply(ScalaProject.scala:40)
	at scala.tools.eclipse.ScalaProject.withPresentationCompiler(ScalaProject.scala:362)
	at scala.tools.eclipse.ScalaProject.withCompilerResult(ScalaProject.scala:366)
	at scala.tools.eclipse.javaelements.ScalaCompilationUnit$class.withCompilerResult(ScalaCompilationUnit.scala:58)
	at scala.tools.eclipse.javaelements.ScalaSourceFile.withCompilerResult(ScalaSourceFile.scala:40)
	at scala.tools.eclipse.markoccurrences.ScalaOccurrencesFinder.findOccurrences(ScalaOccurrencesFinder.scala:19)
	at scala.tools.eclipse.ScalaSourceFileEditor.getAnnotations(ScalaSourceFileEditor.scala:111)
	at scala.tools.eclipse.ScalaSourceFileEditor.updateOccurrenceAnnotations(ScalaSourceFileEditor.scala:99)
	at org.eclipse.jdt.internal.ui.javaeditor.JavaEditor$ActivationListener.windowActivated(JavaEditor.java:1256)
	at org.eclipse.ui.internal.Workbench$14.run(Workbench.java:998)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.ui.internal.Workbench.fireWindowActivated(Workbench.java:996)
	at org.eclipse.ui.internal.WorkbenchWindow$28.shellActivated(WorkbenchWindow.java:3104)
	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:88)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1258)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1282)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1263)
	at org.eclipse.swt.widgets.Shell.filterProc(Shell.java:730)
	at org.eclipse.swt.widgets.Display.filterProc(Display.java:1537)
	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:2224)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3169)
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2629)
	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2593)
	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2427)
	at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:670)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:663)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:115)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:369)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:619)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:574)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1407)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1383)