java.lang.IllegalArgumentException

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  • java.lang.IllegalArgumentException: Comparison method violates its general contract! at java.util.TimSort.mergeHi(TimSort.java:899) at java.util.TimSort.mergeAt(TimSort.java:516) at java.util.TimSort.mergeCollapse(TimSort.java:439) at java.util.TimSort.sort(TimSort.java:245) at java.util.Arrays.sort(Arrays.java:1512) at java.util.ArrayList.sort(ArrayList.java:1454) at java.util.Collections.sort(Collections.java:175) at com.redhat.ceylon.ide.common.completion.getSortedProposedValues_.getSortedProposedValues(completionUtils.ceylon:373) at com.redhat.ceylon.ide.common.completion.InvocationCompletionProposal.addValueArgumentProposals$priv$(InvocationCompletion.ceylon:775) at com.redhat.ceylon.ide.common.completion.InvocationCompletionProposal.enterLinkedMode(InvocationCompletion.ceylon:719) at com.redhat.ceylon.ide.common.completion.InvocationCompletionProposal.activeLinkedMode$canonical$(InvocationCompletion.ceylon:598) at com.redhat.ceylon.ide.common.completion.InvocationCompletionProposal.activeLinkedMode(InvocationCompletion.ceylon:582) at org.intellij.plugins.ceylon.ide.ceylonCode.completion.IdeaInvocationCompletionProposal$1anonymous_0_$1.$call$(IdeaInvocationCompletionProposal.ceylon:112) at org.intellij.plugins.ceylon.ide.ceylonCode.completion.CompletionHandler.handle$priv$(IdeaCompletionProposal.ceylon:104) at org.intellij.plugins.ceylon.ide.ceylonCode.completion.CompletionHandler.handleInsert(IdeaCompletionProposal.ceylon:107) at com.intellij.codeInsight.lookup.LookupElementBuilder.handleInsert(LookupElementBuilder.java:389) at com.intellij.codeInsight.completion.CodeCompletionHandlerBase.lambda$insertItem$6(CodeCompletionHandlerBase.java:669) at com.intellij.openapi.application.impl.ApplicationImpl.runWriteAction(ApplicationImpl.java:906) at com.intellij.codeInsight.completion.CodeCompletionHandlerBase.insertItem(CodeCompletionHandlerBase.java:659) at com.intellij.codeInsight.completion.CodeCompletionHandlerBase.access$200(CodeCompletionHandlerBase.java:69) at com.intellij.codeInsight.completion.CodeCompletionHandlerBase$2.perform(CodeCompletionHandlerBase.java:595) at com.intellij.openapi.editor.impl.CaretModelImpl.lambda$runForEachCaret$2(CaretModelImpl.java:348) at com.intellij.openapi.editor.impl.CaretModelImpl.doWithCaretMerging(CaretModelImpl.java:437) at com.intellij.openapi.editor.impl.CaretModelImpl.runForEachCaret(CaretModelImpl.java:340) at com.intellij.openapi.editor.impl.CaretModelImpl.runForEachCaret(CaretModelImpl.java:331) at com.intellij.codeInsight.completion.CodeCompletionHandlerBase.insertItemHonorBlockSelection(CodeCompletionHandlerBase.java:583) at com.intellij.codeInsight.completion.CodeCompletionHandlerBase.lookupItemSelected(CodeCompletionHandlerBase.java:552) at com.intellij.codeInsight.completion.CompletionProgressIndicator.itemSelected(CompletionProgressIndicator.java:174) at com.intellij.codeInsight.completion.CompletionLookupArranger.itemSelected(CompletionLookupArranger.java:173) at com.intellij.codeInsight.lookup.impl.LookupImpl.fireItemSelected(LookupImpl.java:821) at com.intellij.codeInsight.lookup.impl.LookupImpl.finishLookup(LookupImpl.java:510) at com.intellij.codeInsight.lookup.impl.LookupImpl.finishLookup(LookupImpl.java:455) at com.intellij.codeInsight.lookup.impl.actions.ChooseItemAction$Handler.execute(ChooseItemAction.java:81) at com.intellij.openapi.editor.actionSystem.EditorActionHandler.doExecute(EditorActionHandler.java:172) at com.intellij.openapi.editor.actionSystem.EditorActionHandler$4.perform(EditorActionHandler.java:217) at com.intellij.openapi.editor.actionSystem.EditorActionHandler.doIfEnabled(EditorActionHandler.java:109) at com.intellij.openapi.editor.actionSystem.EditorActionHandler.execute(EditorActionHandler.java:214) at com.intellij.openapi.editor.actionSystem.EditorAction.lambda$actionPerformed$0(EditorAction.java:100) at com.intellij.openapi.command.impl.CoreCommandProcessor.executeCommand(CoreCommandProcessor.java:129) at com.intellij.openapi.editor.actionSystem.EditorAction.actionPerformed(EditorAction.java:109) at com.intellij.openapi.editor.actionSystem.EditorAction.actionPerformed(EditorAction.java:88) at com.intellij.openapi.actionSystem.ex.ActionUtil$1.run(ActionUtil.java:197) at com.intellij.openapi.actionSystem.ex.ActionUtil.performActionDumbAware(ActionUtil.java:213) at com.intellij.openapi.keymap.impl.IdeKeyEventDispatcher$1.performAction(IdeKeyEventDispatcher.java:587) at com.intellij.openapi.keymap.impl.IdeKeyEventDispatcher.lambda$processAction$2(IdeKeyEventDispatcher.java:634) at com.intellij.openapi.application.TransactionGuardImpl.performUserActivity(TransactionGuardImpl.java:199) at com.intellij.openapi.keymap.impl.IdeKeyEventDispatcher.processAction(IdeKeyEventDispatcher.java:633) at com.intellij.openapi.keymap.impl.IdeKeyEventDispatcher.inInitState(IdeKeyEventDispatcher.java:477) at com.intellij.openapi.keymap.impl.IdeKeyEventDispatcher.dispatchKeyEvent(IdeKeyEventDispatcher.java:211) at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:677) at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:385) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93) at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

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