NPE on hasStaticMembers error message in log

[MikhailMalyutin]

null
java.lang.NullPointerException
    at com.redhat.ceylon.model.typechecker.model.Class.hasStaticMembers(Class.java:62)
    at com.redhat.ceylon.ide.common.completion.completionManager_.isProposable$priv$(IdeCompletionManager.ceylon:1405)
    at com.redhat.ceylon.ide.common.completion.completionManager_.constructCompletions$priv$(IdeCompletionManager.ceylon:958)
    at com.redhat.ceylon.ide.common.completion.completionManager_.getContentProposals$canonical$(IdeCompletionManager.ceylon:285)
    at com.redhat.ceylon.ide.common.completion.completionManager_.getContentProposals(IdeCompletionManager.ceylon:114)
    at org.intellij.plugins.ceylon.ide.ceylonCode.completion.IdeaCompletionProvider.addCompletionsInternal$priv$(ideaCompletionManager.ceylon:216)
    at org.intellij.plugins.ceylon.ide.ceylonCode.completion.IdeaCompletionProvider.access$100(ideaCompletionManager.ceylon:70)
    at org.intellij.plugins.ceylon.ide.ceylonCode.completion.IdeaCompletionProvider$1.$call$(ideaCompletionManager.ceylon:179)
    at org.intellij.plugins.ceylon.ide.ceylonCode.model.concurrencyManager_.withIndexStrategy$priv$(concurrencyManager.ceylon:207)
    at org.intellij.plugins.ceylon.ide.ceylonCode.model.concurrencyManager_.withAlternateResolution(concurrencyManager.ceylon:219)
    at org.intellij.plugins.ceylon.ide.ceylonCode.completion.IdeaCompletionProvider.addCompletions(ideaCompletionManager.ceylon:162)
    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$0(CompletionThreading.java:87)
    at com.intellij.openapi.application.impl.ApplicationImpl.runReadAction(ApplicationImpl.java:848)
    at com.intellij.codeInsight.completion.AsyncCompletion.lambda$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$2.run(ApplicationImpl.java:307)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at jav