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java.lang.NullPointerException: 	at com.redhat.ceylon.model.typechecker.model.NothingType.getContainer(NothingType.java:55)	at org.intellij.plugins.ceylon.ide.ceylonCode.completion.IdeaInvocationCompletionProposal.(IdeaInvocationCompletionProposal.ceylon:47)	at org.intellij.plugins.ceylon.ide.ceylonCode.completion.ideaCompletionServices_.newInvocationCompletion(ideaCompletionServices.ceylon:84)	at com.redhat.ceylon.ide.common.completion.InvocationCompletion$impl.addReferenceProposal(InvocationCompletion.ceylon:90)	at com.redhat.ceylon.ide.common.completion.completionManager_.addReferenceProposal(IdeCompletionManager.ceylon)	at com.redhat.ceylon.ide.common.completion.completionManager_.constructCompletions$priv$(IdeCompletionManager.ceylon:902)	at com.redhat.ceylon.ide.common.completion.completionManager_.getContentProposals$canonical$(IdeCompletionManager.ceylon:268)	at com.redhat.ceylon.ide.common.completion.completionManager_.getContentProposals(IdeCompletionManager.ceylon:107)	at org.intellij.plugins.ceylon.ide.ceylonCode.completion.IdeaCompletionProvider.addCompletionsInternal$priv$(ideaCompletionManager.ceylon:149)	at org.intellij.plugins.ceylon.ide.ceylonCode.completion.IdeaCompletionProvider.access$000(ideaCompletionManager.ceylon:61)	at org.intellij.plugins.ceylon.ide.ceylonCode.completion.IdeaCompletionProvider$1.$call$(ideaCompletionManager.ceylon:122)	at org.intellij.plugins.ceylon.ide.ceylonCode.model.concurrencyManager_.withIndexStrategy$priv$(concurrencyManager.ceylon:186)	at org.intellij.plugins.ceylon.ide.ceylonCode.model.concurrencyManager_.withAlternateResolution(concurrencyManager.ceylon:198)	at org.intellij.plugins.ceylon.ide.ceylonCode.completion.IdeaCompletionProvider.addCompletions(ideaCompletionManager.ceylon:117)	at com.intellij.codeInsight.completion.CompletionProvider.addCompletionVariants(CompletionProvider.java:36)	at com.intellij.codeInsight.completion.CompletionContributor.fillCompletionVariants(CompletionContributor.java:155)	at com.intellij.codeInsight.completion.CompletionService.getVariantsFromContributors(CompletionService.java:81)	at com.intellij.codeInsight.completion.CompletionResultSet.runRemainingContributors(CompletionResultSet.java:132)	at com.intellij.codeInsight.completion.CompletionResultSet.runRemainingContributors(CompletionResultSet.java:125)	at com.intellij.codeInsight.template.impl.LiveTemplateCompletionContributor$2.addCompletions(LiveTemplateCompletionContributor.java:90)	at com.intellij.codeInsight.completion.CompletionProvider.addCompletionVariants(CompletionProvider.java:36)	at com.intellij.codeInsight.completion.CompletionContributor.fillCompletionVariants(CompletionContributor.java:155)	at com.intellij.codeInsight.completion.CompletionService.getVariantsFromContributors(CompletionService.java:81)	at com.intellij.codeInsight.completion.CompletionService.performCompletion(CompletionService.java:110)	at com.intellij.codeInsight.completion.CompletionProgressIndicator.calculateItems(CompletionProgressIndicator.java:776)	at com.intellij.codeInsight.completion.CompletionProgressIndicator.access$500(CompletionProgressIndicator.java:90)	at com.intellij.codeInsight.completion.CompletionProgressIndicator$1CalculateItems.run(CompletionProgressIndicator.java:758)	at com.intellij.codeInsight.completion.AsyncCompletion.lambda$null$0(CompletionThreading.java:87)	at com.intellij.openapi.application.impl.ApplicationImpl.runReadAction(ApplicationImpl.java:855)	at com.intellij.codeInsight.completion.AsyncCompletion.lambda$null$1(CompletionThreading.java:84)	at com.intellij.openapi.progress.impl.CoreProgressManager$3.run(CoreProgressManager.java:170)	at com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun(CoreProgressManager.java:494)	at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:443)	at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:54)	at com.intellij.openapi.progress.impl.CoreProgressManager.runProcess(CoreProgressManager.java:155)	at com.intellij.codeInsight.completion.AsyncCompletion.lambda$startThread$2(CompletionThreading.java:82)	at com.intellij.openapi.application.impl.ApplicationImpl$2.run(ApplicationImpl.java:308)	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)	at java.util.concurrent.FutureTask.run(FutureTask.java:266)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)	at java.lang.Thread.run(Thread.java:745)