java.lang.NullPointerException: This exception has no message.

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via GitHub by igmar
, 1 year ago
This exception has no message.
java.lang.NullPointerException:
at org.antlr.v4.semantics.SymbolChecks.checkForModeConflicts(SymbolChecks.java:278)
at org.antlr.v4.semantics.SemanticPipeline.process(SemanticPipeline.java:132)
at org.antlr.v4.Tool.processNonCombinedGrammar(Tool.java:399)
at org.antlr.v4.Tool.process(Tool.java:386)
at org.antlr.intellij.plugin.parsing.ParsingUtils.loadLexerGrammarFor(ParsingUtils.java:510)
at org.antlr.intellij.plugin.parsing.ParsingUtils.loadGrammars(ParsingUtils.java:447)
at org.antlr.intellij.plugin.ANTLRv4PluginController.updateGrammarObjectsFromFile_(ANTLRv4PluginController.java:362)
at org.antlr.intellij.plugin.ANTLRv4PluginController.updateGrammarObjectsFromFile(ANTLRv4PluginController.java:346)
at org.antlr.intellij.plugin.ANTLRv4PluginController.currentEditorFileChangedEvent(ANTLRv4PluginController.java:283)
at org.antlr.intellij.plugin.ANTLRv4PluginController$MyFileEditorManagerAdapter.selectionChanged(ANTLRv4PluginController.java:552)
at sun.reflect.GeneratedMethodAccessor51.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.intellij.util.messages.impl.MessageBusConnectionImpl.deliverMessage(MessageBusConnectionImpl.java:117)
at com.intellij.util.messages.impl.MessageBusImpl.doPumpMessages(MessageBusImpl.java:377)
at com.intellij.util.messages.impl.MessageBusImpl.pumpMessages(MessageBusImpl.java:364)
at com.intellij.util.messages.impl.MessageBusImpl.pumpMessages(MessageBusImpl.java:350)
at com.intellij.util.messages.impl.MessageBusImpl.sendMessage(MessageBusImpl.java:343)
at com.intellij.util.messages.impl.MessageBusImpl.access$200(MessageBusImpl.java:42)
at com.sun.proxy.$Proxy87.selectionChanged(Unknown Source)
at com.intellij.openapi.fileEditor.impl.FileEditorManagerImpl.a(FileEditorManagerImpl.java:1593)
at com.intellij.openapi.fileEditor.impl.FileEditorManagerImpl$9$1.run(FileEditorManagerImpl.java:1069)
at com.intellij.openapi.wm.impl.FocusManagerImpl.a(FocusManagerImpl.java:631)
at com.intellij.openapi.wm.impl.FocusManagerImpl.a(FocusManagerImpl.java:615)
at com.intellij.openapi.wm.impl.FocusManagerImpl.g(FocusManagerImpl.java:585)
at com.intellij.openapi.wm.impl.FocusManagerImpl.b(FocusManagerImpl.java:481)
at com.intellij.util.ui.UIUtil.invokeLaterIfNeeded(UIUtil.java:2397)
at com.intellij.openapi.wm.impl.FocusManagerImpl.doWhenFocusSettlesDown(FocusManagerImpl.java:461)
at com.intellij.openapi.wm.impl.FocusManagerImpl.doWhenFocusSettlesDown(FocusManagerImpl.java:456)
at com.intellij.openapi.wm.impl.IdeFocusManagerImpl.doWhenFocusSettlesDown(IdeFocusManagerImpl.java:64)
at com.intellij.openapi.fileEditor.impl.FileEditorManagerImpl$9.run(FileEditorManagerImpl.java:1066)
at com.intellij.openapi.util.BusyObject$Impl$Simple.execute(BusyObject.java:123)
at com.intellij.openapi.fileEditor.impl.FileEditorManagerImpl.notifyPublisher(FileEditorManagerImpl.java:1062)
at com.intellij.openapi.fileEditor.impl.FileEditorManagerImpl.fireSelectionChanged(FileEditorManagerImpl.java:1593)
at com.intellij.openapi.fileEditor.impl.EditorsSplitters.a(EditorsSplitters.java:624)
at com.intellij.openapi.fileEditor.impl.EditorsSplitters.setCurrentWindow(EditorsSplitters.java:633)
at com.intellij.openapi.fileEditor.impl.EditorWindow.setEditor(EditorWindow.java:687)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:301)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:756)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:726)
at com.intellij.ide.IdeEventQueue.f(IdeEventQueue.java:863)

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