AI Coding Assistant reports NullPointerException when launched from Goland #206
Description
When I start Goland, I consistently see "IDE Error Occurred". Clickable: "See details and submit report". So I clicked and saw a pop-up that said:
Exception in plug-in AI Coding Assistant (1.9.7)
This is not a product of JetBrains.
Please report the problem to SimiaCryptus Software.
Also visible in the pop-up is this traceback:
java.lang.NullPointerException: Cannot invoke "javax.swing.JTree.addTreeSelectionListener(javax.swing.event.TreeSelectionListener)" because the return value of "com.intellij.ide.projectView.impl.AbstractProjectViewPane.getTree()" is null
at com.simiacryptus.aicoder.ui.TokenCountWidgetFactory$TokenCountWidget$install$2.paneShown(TokenCountWidgetFactory.kt:193)
at com.intellij.util.messages.impl.MessageBusImplKt.invokeMethod(MessageBusImpl.kt:818)
at com.intellij.util.messages.impl.MessageBusImplKt.invokeListener(MessageBusImpl.kt:762)
at com.intellij.util.messages.impl.MessageBusImplKt.deliverMessage(MessageBusImpl.kt:501)
at com.intellij.util.messages.impl.MessageBusImplKt.pumpWaiting(MessageBusImpl.kt:480)
at com.intellij.util.messages.impl.MessageBusImplKt.access$pumpWaiting(MessageBusImpl.kt:1)
at com.intellij.util.messages.impl.MessagePublisher.invoke(MessageBusImpl.kt:543)
at jdk.proxy2/jdk.proxy2.$Proxy93.paneShown(Unknown Source)
at com.intellij.ide.projectView.impl.ProjectViewImpl.showPane(ProjectViewImpl.java:924)
at com.intellij.ide.projectView.impl.ProjectViewImpl.viewSelectionChanged(ProjectViewImpl.java:1110)
at com.intellij.ide.projectView.impl.ProjectViewImpl$20.selectionChanged(ProjectViewImpl.java:989)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
at java.base/java.lang.reflect.Method.invoke(Method.java:580)
at com.intellij.util.EventDispatcher.dispatchVoidMethod(EventDispatcher.java:120)
at com.intellij.util.EventDispatcher.lambda$doCreateMulticaster$1(EventDispatcher.java:85)
at jdk.proxy2/jdk.proxy2.$Proxy96.selectionChanged(Unknown Source)
at com.intellij.ui.content.impl.ContentManagerImpl.fireSelectionChanged(ContentManagerImpl.java:647)
at com.intellij.ui.content.impl.ContentManagerImpl.addSelectedContent(ContentManagerImpl.java:466)
at com.intellij.ui.content.impl.ContentManagerImpl.setSelectedContent(ContentManagerImpl.java:557)
at com.intellij.ui.content.impl.ContentManagerImpl.setSelectedContentCB(ContentManagerImpl.java:521)
at com.intellij.ui.content.impl.ContentManagerImpl.setSelectedContentCB(ContentManagerImpl.java:509)
at com.intellij.ui.content.impl.ContentManagerImpl.setSelectedContentCB(ContentManagerImpl.java:585)
at com.intellij.ide.projectView.impl.ProjectViewImpl.changeViewCB(ProjectViewImpl.java:1352)
at com.intellij.ide.projectView.impl.ProjectViewImpl.changeView(ProjectViewImpl.java:1324)
at com.intellij.ide.projectView.impl.ProjectViewImpl.doAddUninitializedPanes(ProjectViewImpl.java:822)
at com.intellij.ide.projectView.impl.ProjectViewImpl.addProjectPane(ProjectViewImpl.java:748)
at com.intellij.ide.scopeView.ScopeViewPane$1.lambda$scopesChanged$0(ScopeViewPane.java:111)
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:572)
at com.intellij.util.concurrency.ContextCallable.lambda$call$1(ContextCallable.java:86)
at com.intellij.util.concurrency.ContextCallable.call(ContextCallable.java:95)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317)
at com.intellij.util.concurrency.SchedulingWrapper$MyScheduledFutureTask.run(SchedulingWrapper.java:277)
at com.intellij.openapi.application.TransactionGuardImpl$1.run(TransactionGuardImpl.java:205)
at com.intellij.openapi.application.impl.AppImplKt$runnableUnitFunction$1.invoke(appImpl.kt:104)
at com.intellij.openapi.application.impl.AppImplKt$runnableUnitFunction$1.invoke(appImpl.kt:104)
at com.intellij.platform.locking.impl.NestedLocksThreadingSupport.doRunWriteIntentReadAction(NestedLocksThreadingSupport.kt:666)
at com.intellij.platform.locking.impl.NestedLocksThreadingSupport.runPreventiveWriteIntentReadAction(NestedLocksThreadingSupport.kt:640)
at com.intellij.platform.locking.impl.NestedLocksThreadingSupport.runWriteIntentReadAction(NestedLocksThreadingSupport.kt:633)
at com.intellij.openapi.application.impl.ApplicationImpl.runIntendedWriteActionOnCurrentThread(ApplicationImpl.java:1022)
at com.intellij.openapi.application.impl.ApplicationImpl$7.run(ApplicationImpl.java:587)
at com.intellij.openapi.application.impl.FlushQueue.runNextEvent(FlushQueue.java:122)
at com.intellij.openapi.application.impl.FlushQueue.flushNow(FlushQueue.java:43)
at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:318)
at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:781)
at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:728)
at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:722)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:400)
at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:87)
at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:750)
at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.kt:595)
at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.kt:488)
at com.intellij.ide.IdeEventQueue.dispatchEvent$lambda$12$lambda$11$lambda$10$lambda$9(IdeEventQueue.kt:313)
at com.intellij.openapi.progress.impl.CoreProgressManager.computePrioritized(CoreProgressManager.java:865)
at com.intellij.ide.IdeEventQueue.dispatchEvent$lambda$12$lambda$11$lambda$10(IdeEventQueue.kt:312)
at com.intellij.ide.IdeEventQueueKt.performActivity$lambda$3(IdeEventQueue.kt:974)
at com.intellij.openapi.application.TransactionGuardImpl.performActivity(TransactionGuardImpl.java:118)
at com.intellij.ide.IdeEventQueueKt.performActivity(IdeEventQueue.kt:974)
at com.intellij.ide.IdeEventQueue.dispatchEvent$lambda$12(IdeEventQueue.kt:307)
at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.kt:347)
at com.intellij.openapi.progress.impl.PlatformTaskSupportKt.pumpEventsForHierarchy(PlatformTaskSupport.kt:684)
at com.intellij.openapi.progress.impl.PlatformTaskSupportKt.pumpEventsForHierarchy(PlatformTaskSupport.kt:692)
at com.intellij.openapi.fileEditor.impl.FileEditorManagerImplKt$blockingWaitForCompositeFileOpen$2.invokeSuspend(FileEditorManagerImpl.kt:2491)
at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:100)
at kotlinx.coroutines.EventLoopImplBase.processNextEvent(EventLoop.common.kt:263)
at kotlinx.coroutines.BlockingCoroutine.joinBlocking(Builders.kt:112)
at kotlinx.coroutines.BuildersKt__BuildersKt.runBlocking$BuildersKt__BuildersKt(Builders.kt:85)
at kotlinx.coroutines.BuildersKt__BuildersKt.runBlocking(Builders.kt:53)
at kotlinx.coroutines.BuildersKt.runBlocking(Unknown Source)
at kotlinx.coroutines.BuildersKt__BuildersKt.runBlocking$default(Builders.kt:48)
at kotlinx.coroutines.BuildersKt.runBlocking$default(Unknown Source)
at com.intellij.openapi.fileEditor.impl.FileEditorManagerImplKt.blockingWaitForCompositeFileOpen(FileEditorManagerImpl.kt:2486)
at com.intellij.openapi.fileEditor.impl.FileEditorManagerImpl.openFileImpl$lambda$38(FileEditorManagerImpl.kt:1162)
at com.intellij.openapi.application.WriteIntentReadAction.lambda$compute$2(WriteIntentReadAction.java:46)
at com.intellij.openapi.application.impl.AppImplKt$rethrowCheckedExceptions$2.invoke(appImpl.kt:106)
at com.intellij.platform.locking.impl.NestedLocksThreadingSupport.doRunWriteIntentReadAction(NestedLocksThreadingSupport.kt:666)
at com.intellij.platform.locking.impl.NestedLocksThreadingSupport.runPreventiveWriteIntentReadAction(NestedLocksThreadingSupport.kt:640)
at com.intellij.platform.locking.impl.NestedLocksThreadingSupport.runWriteIntentReadAction(NestedLocksThreadingSupport.kt:633)
at com.intellij.openapi.application.impl.ApplicationImpl.runWriteIntentReadAction(ApplicationImpl.java:1166)
at com.intellij.openapi.application.WriteIntentReadAction.compute(WriteIntentReadAction.java:45)
at com.intellij.openapi.fileEditor.impl.FileEditorManagerImpl.openFileImpl(FileEditorManagerImpl.kt:1158)
at com.intellij.openapi.fileEditor.impl.FileEditorManagerImpl.openFile(FileEditorManagerImpl.kt:900)
at com.intellij.openapi.fileEditor.ex.FileEditorManagerEx.openFile(FileEditorManagerEx.kt:135)
at com.goide.ide.GoWelcomeScreenCommandLineProjectOpenProcessor$focusOnFile$2.invokeSuspend(GoWelcomeScreenCommandLineProjectOpenProcessor.kt:81)
at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:100)
at com.intellij.openapi.application.impl.EdtCoroutineDispatcher.wrapWithLocking$lambda$3$lambda$2(EdtCoroutineDispatcher.kt:71)
at com.intellij.openapi.application.WriteIntentReadAction.lambda$run$0(WriteIntentReadAction.java:24)
at com.intellij.openapi.application.impl.AppImplKt$rethrowCheckedExceptions$2.invoke(appImpl.kt:106)
at com.intellij.platform.locking.impl.NestedLocksThreadingSupport.doRunWriteIntentReadAction(NestedLocksThreadingSupport.kt:666)
at com.intellij.platform.locking.impl.NestedLocksThreadingSupport.runPreventiveWriteIntentReadAction(NestedLocksThreadingSupport.kt:640)
at com.intellij.platform.locking.impl.NestedLocksThreadingSupport.runWriteIntentReadAction(NestedLocksThreadingSupport.kt:633)
at com.intellij.openapi.application.impl.ApplicationImpl.runWriteIntentReadAction(ApplicationImpl.java:1166)
at com.intellij.openapi.application.WriteIntentReadAction.compute(WriteIntentReadAction.java:55)
at com.intellij.openapi.application.WriteIntentReadAction.run(WriteIntentReadAction.java:23)
at com.intellij.openapi.application.impl.EdtCoroutineDispatcher.wrapWithLocking$lambda$3(EdtCoroutineDispatcher.kt:70)
at com.intellij.openapi.application.impl.DispatchedRunnable.run(DispatchedRunnable.kt:42)
at com.intellij.openapi.application.TransactionGuardImpl.runWithWritingAllowed(TransactionGuardImpl.java:240)
at com.intellij.openapi.application.TransactionGuardImpl.access$100(TransactionGuardImpl.java:26)
at com.intellij.openapi.application.TransactionGuardImpl$2.run(TransactionGuardImpl.java:222)
at com.intellij.openapi.application.impl.FlushQueue.runNextEvent(FlushQueue.java:122)
at com.intellij.openapi.application.impl.FlushQueue.flushNow(FlushQueue.java:43)
at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:318)
at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:781)
at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:728)
at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:722)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:400)
at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:87)
at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:750)
at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.kt:595)
at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.kt:488)
at com.intellij.ide.IdeEventQueue.dispatchEvent$lambda$12$lambda$11$lambda$10$lambda$9(IdeEventQueue.kt:313)
at com.intellij.openapi.progress.impl.CoreProgressManager.computePrioritized(CoreProgressManager.java:865)
at com.intellij.ide.IdeEventQueue.dispatchEvent$lambda$12$lambda$11$lambda$10(IdeEventQueue.kt:312)
at com.intellij.ide.IdeEventQueueKt.performActivity$lambda$3(IdeEventQueue.kt:974)
at com.intellij.openapi.application.TransactionGuardImpl.performActivity(TransactionGuardImpl.java:110)
at com.intellij.ide.IdeEventQueueKt.performActivity(IdeEventQueue.kt:974)
at com.intellij.ide.IdeEventQueue.dispatchEvent$lambda$12(IdeEventQueue.kt:307)
at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.kt:347)
at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:207)
at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:128)
at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:117)
at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:113)
at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:105)
at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:92)
When I dismiss the pop-up, Junie seems to operate ok.
Version info:
AI Coding Assistant 1.9.7 in Goland license JetBrains AI Ultimate
Goland 2025.2 Build #GO-252.23892.449, built on August 5, 2025
Runtime version: 21.0.7+6-b1038.58 amd64 (JCEF 122.1.9)
VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o.
go version go1.24.0 linux/amd64
openjdk version "21.0.8" 2025-07-15
OpenJDK Runtime Environment (build 21.0.8+9-Ubuntu-0ubuntu124.04.1)
OpenJDK 64-Bit Server VM (build 21.0.8+9-Ubuntu-0ubuntu124.04.1, mixed mode, sharing)
O/S: Ubuntu 24.04.3 LTS