java.lang.UnsupportedOperationException: Position.start on NoPosition
   at scala.reflect.internal.util.Position.fail(Position.java:17)
   at scala.reflect.internal.util.UndefinedPosition.start(UndefinedPosition.java:94)
   at scala.reflect.internal.util.UndefinedPosition.start(UndefinedPosition.java:90)
   at org.netbeans.modules.scala.core.ScalaSourceUtil$.getOffset(ScalaSourceUtil.java:330)
   at org.netbeans.modules.scala.core.element.ScalaElements$ScalaElement.getOffset(ScalaElements.java:185)
   at org.netbeans.modules.scala.core.element.ScalaElements$ScalaElement$$anonfun$getDocComment$1.apply(ScalaElements.java:146)
   at org.netbeans.modules.scala.core.element.ScalaElements$ScalaElement$$anonfun$getDocComment$1.apply(ScalaElements.java:135)
   at scala.Option.foreach(Option.java:257)
   at org.netbeans.modules.scala.core.element.ScalaElements$ScalaElement.getDocComment(ScalaElements.java:135)
   at org.netbeans.modules.scala.editor.ScalaCodeCompletionHandler.document(ScalaCodeCompletionHandler.java:1100)
   at org.netbeans.modules.csl.editor.completion.GsfCompletionDoc.<init>(GsfCompletionDoc.java:126)
   at org.netbeans.modules.csl.editor.completion.GsfCompletionDoc.create(GsfCompletionDoc.java:137)
   at org.netbeans.modules.csl.editor.completion.GsfCompletionProvider$JavaCompletionQuery.resolveDocumentation(GsfCompletionProvider.java:542)
   at org.netbeans.modules.csl.editor.completion.GsfCompletionProvider$JavaCompletionQuery.access$600(GsfCompletionProvider.java:248)
   at org.netbeans.modules.csl.editor.completion.GsfCompletionProvider$JavaCompletionQuery$1.run(GsfCompletionProvider.java:336)
   at org.netbeans.modules.parsing.impl.TaskProcessor.callUserTask(TaskProcessor.java:598)
   at org.netbeans.modules.parsing.api.ParserManager$UserTaskAction.run(ParserManager.java:155)
   at org.netbeans.modules.parsing.api.ParserManager$UserTaskAction.run(ParserManager.java:139)
   at org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:206)
   at org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:203)
   at org.netbeans.modules.masterfs.filebasedfs.utils.FileChangedManager.priorityIO(FileChangedManager.java:176)
   at org.netbeans.modules.masterfs.providers.ProvidedExtensions.priorityIO(ProvidedExtensions.java:360)
   at org.netbeans.modules.parsing.impl.Utilities.runPriorityIO(Utilities.java:74)
Caused: org.netbeans.modules.parsing.spi.ParseException
   at org.netbeans.modules.parsing.impl.TaskProcessor.runUserTask(TaskProcessor.java:211)
   at org.netbeans.modules.parsing.api.ParserManager.parse(ParserManager.java:106)
   at org.netbeans.modules.csl.editor.completion.GsfCompletionProvider$JavaCompletionQuery.query(GsfCompletionProvider.java:341)
   at org.netbeans.spi.editor.completion.support.AsyncCompletionTask.run(AsyncCompletionTask.java:223)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1423)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)