Eclipse Helios Service Release 1 (build 20100917-0705)
Scala IDE for Eclipse version 1.0.0.201011290444

After a recent update (from http://download.scala-ide.org/nightly-update-gsoc-2.8.1.final) certain Scala files are throwing NPEs when I attempt to open them in the Scala editor:

java.lang.NullPointerException
at scala.tools.eclipse.ui.semantic.highlighting.SemanticHighlightingPresenter$$anonfun$update$1$viewsCollector$2$$anonfun$traverse$1.apply(SemanticHighlightingPresenter.scala:135)
at scala.tools.eclipse.ui.semantic.highlighting.SemanticHighlightingPresenter$$anonfun$update$1$viewsCollector$2$$anonfun$traverse$1.apply(SemanticHighlightingPresenter.scala:135)
at scala.collection.LinearSeqOptimized$class.foreach(LinearSeqOptimized.scala:61)
at scala.collection.immutable.List.foreach(List.scala:45)
at scala.tools.eclipse.ui.semantic.highlighting.SemanticHighlightingPresenter$$anonfun$update$1$viewsCollector$2$.traverse(SemanticHighlightingPresenter.scala:135)
at scala.reflect.generic.Trees$Traverser$$anonfun$traverseTrees$1.apply(Trees.scala:566)
at scala.reflect.generic.Trees$Traverser$$anonfun$traverseTrees$1.apply(Trees.scala:566)
at scala.collection.LinearSeqOptimized$class.foreach(LinearSeqOptimized.scala:61)
at scala.collection.immutable.List.foreach(List.scala:45)
at scala.reflect.generic.Trees$Traverser.traverseTrees(Trees.scala:566)
at scala.reflect.generic.Trees$Traverser.traverse(Trees.scala:534)
at scala.tools.nsc.ast.Trees$Traverser.traverse(Trees.scala:896)
at scala.tools.eclipse.ui.semantic.highlighting.SemanticHighlightingPresenter$$anonfun$update$1$viewsCollector$2$.traverse(SemanticHighlightingPresenter.scala:144)
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:896)
at scala.tools.eclipse.ui.semantic.highlighting.SemanticHighlightingPresenter$$anonfun$update$1$viewsCollector$2$.traverse(SemanticHighlightingPresenter.scala:144)
at scala.reflect.generic.Trees$Traverser$$anonfun$traverseTrees$1.apply(Trees.scala:566)
at scala.reflect.generic.Trees$Traverser$$anonfun$traverseTrees$1.apply(Trees.scala:566)
at scala.collection.LinearSeqOptimized$class.foreach(LinearSeqOptimized.scala:61)
at scala.collection.immutable.List.foreach(List.scala:45)
at scala.reflect.generic.Trees$Traverser.traverseTrees(Trees.scala:566)
at scala.reflect.generic.Trees$Traverser.traverse(Trees.scala:534)
at scala.tools.nsc.ast.Trees$Traverser.traverse(Trees.scala:896)
at scala.tools.eclipse.ui.semantic.highlighting.SemanticHighlightingPresenter$$anonfun$update$1$viewsCollector$2$.traverse(SemanticHighlightingPresenter.scala:144)
at scala.tools.nsc.ast.Trees$Traverser$$anonfun$traverseStats$1$$anonfun$apply$1.apply$mcV$sp(Trees.scala:903)
at scala.reflect.generic.Trees$Traverser.atOwner(Trees.scala:581)
at scala.tools.nsc.ast.Trees$Traverser$$anonfun$traverseStats$1.apply(Trees.scala:903)
at scala.tools.nsc.ast.Trees$Traverser$$anonfun$traverseStats$1.apply(Trees.scala:902)
at scala.collection.LinearSeqOptimized$class.foreach(LinearSeqOptimized.scala:61)
at scala.collection.immutable.List.foreach(List.scala:45)
at scala.tools.nsc.ast.Trees$Traverser.traverseStats(Trees.scala:902)
at scala.tools.nsc.ast.Trees$Traverser.traverseStats(Trees.scala:883)
at scala.reflect.generic.Trees$Traverser.traverse(Trees.scala:496)
at scala.tools.nsc.ast.Trees$Traverser.traverse(Trees.scala:896)
at scala.tools.eclipse.ui.semantic.highlighting.SemanticHighlightingPresenter$$anonfun$update$1$viewsCollector$2$.traverse(SemanticHighlightingPresenter.scala:144)
at scala.reflect.generic.Trees$Traverser$$anonfun$traverse$2.apply$mcV$sp(Trees.scala:469)
at scala.reflect.generic.Trees$Traverser.atOwner(Trees.scala:581)
at scala.reflect.generic.Trees$Traverser.traverse(Trees.scala:468)
at scala.tools.nsc.ast.Trees$Traverser.traverse(Trees.scala:896)
at scala.tools.eclipse.ui.semantic.highlighting.SemanticHighlightingPresenter$$anonfun$update$1$viewsCollector$2$.traverse(SemanticHighlightingPresenter.scala:144)
at scala.reflect.generic.Trees$Traverser$$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:896)
at scala.tools.eclipse.ui.semantic.highlighting.SemanticHighlightingPresenter$$anonfun$update$1$viewsCollector$2$.traverse(SemanticHighlightingPresenter.scala:144)
at scala.tools.eclipse.ui.semantic.highlighting.SemanticHighlightingPresenter$$anonfun$update$1.apply(SemanticHighlightingPresenter.scala:147)
at scala.tools.eclipse.ui.semantic.highlighting.SemanticHighlightingPresenter$$anonfun$update$1.apply(SemanticHighlightingPresenter.scala:116)
at scala.tools.eclipse.util.Cached$$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:56)
at scala.tools.eclipse.javaelements.ScalaSourceFile.withCompilerResult(ScalaSourceFile.scala:38)
at scala.tools.eclipse.ui.semantic.highlighting.SemanticHighlightingPresenter.update(SemanticHighlightingPresenter.scala:116)
at scala.tools.eclipse.ScalaSourceFileEditor.createPartControl(ScalaSourceFileEditor.scala:159)
at org.eclipse.ui.internal.EditorReference.createPartHelper(EditorReference.java:670)
at org.eclipse.ui.internal.EditorReference.createPart(EditorReference.java:465)
at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:595)
at org.eclipse.ui.internal.PartPane.setVisible(PartPane.java:313)
at org.eclipse.ui.internal.presentations.PresentablePart.setVisible(PresentablePart.java:180)
at org.eclipse.ui.internal.presentations.util.PresentablePartFolder.select(PresentablePartFolder.java:270)
at org.eclipse.ui.internal.presentations.util.LeftToRightTabOrder.select(LeftToRightTabOrder.java:65)
at org.eclipse.ui.internal.presentations.util.TabbedStackPresentation.selectPart(TabbedStackPresentation.java:473)
at org.eclipse.ui.internal.PartStack.refreshPresentationSelection(PartStack.java:1254)
at org.eclipse.ui.internal.PartStack.setSelection(PartStack.java:1207)
at org.eclipse.ui.internal.PartStack.showPart(PartStack.java:1606)
at org.eclipse.ui.internal.PartStack.add(PartStack.java:497)
at org.eclipse.ui.internal.EditorStack.add(EditorStack.java:103)
at org.eclipse.ui.internal.PartStack.add(PartStack.java:483)
at org.eclipse.ui.internal.EditorStack.add(EditorStack.java:112)
at org.eclipse.ui.internal.EditorSashContainer.addEditor(EditorSashContainer.java:63)
at org.eclipse.ui.internal.EditorAreaHelper.addToLayout(EditorAreaHelper.java:225)
at org.eclipse.ui.internal.EditorAreaHelper.addEditor(EditorAreaHelper.java:213)
at org.eclipse.ui.internal.EditorManager.createEditorTab(EditorManager.java:778)
at org.eclipse.ui.internal.EditorManager.openEditorFromDescriptor(EditorManager.java:677)
at org.eclipse.ui.internal.EditorManager.openEditor(EditorManager.java:638)
at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched(WorkbenchPage.java:2860)
at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:2768)
at org.eclipse.ui.internal.WorkbenchPage.access$11(WorkbenchPage.java:2760)
at org.eclipse.ui.internal.WorkbenchPage$10.run(WorkbenchPage.java:2711)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2707)
at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2691)
at org.eclipse.ui.actions.OpenWithMenu.openEditor(OpenWithMenu.java:331)
at org.eclipse.ui.actions.OpenWithMenu$2.handleEvent(OpenWithMenu.java:179)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4066)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3657)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2640)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2604)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2438)
at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:671)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:664)
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(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
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)

I'm attaching one of the specific source files I'm having trouble with (AnimatingPropertySpec.scala) that is a ScalaTest FlatSpec used in Sgine (http://www.sgine.org).

Please let me know if there is any additional information I can provide.