NullPointerException from CMakeNotificationProviderWrapper

[ujohnny]

Description of the bug:

Sometimes CLion reports the following NPE

com.intellij.diagnostic.PluginException: Cannot invoke "java.util.function.Function.apply(Object)" because the return value of "com.jetbrains.cidr.cpp.cmake.workspace.CMakeNotificationProvider.collectNotificationData(com.intellij.openapi.project.Project, com.intellij.openapi.vfs.VirtualFile)" is null [Plugin: com.google.idea.bazel.clwb]
	at com.intellij.ui.EditorNotificationsImpl$updateEditors$job$1.invokeSuspend(EditorNotificationsImpl.kt:226)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:104)
	at kotlinx.coroutines.scheduling.CoroutineScheduler.runSafely(CoroutineScheduler.kt:584)
	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.executeTask(CoroutineScheduler.kt:793)
	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.runWorker(CoroutineScheduler.kt:697)
	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:684)
Caused by: java.lang.NullPointerException: Cannot invoke "java.util.function.Function.apply(Object)" because the return value of "com.jetbrains.cidr.cpp.cmake.workspace.CMakeNotificationProvider.collectNotificationData(com.intellij.openapi.project.Project, com.intellij.openapi.vfs.VirtualFile)" is null
	at com.google.idea.sdkcompat.cpp.CMakeNotificationProviderWrapper.createNotificationPanel(CMakeNotificationProviderWrapper.java:20)
	at com.google.idea.blaze.plugin.CMakeNotificationFilter.createNotificationPanel(CMakeNotificationFilter.java:55)
	at com.intellij.ui.EditorNotifications$Provider.lambda$collectNotificationData$0(EditorNotifications.java:60)
	at com.intellij.ui.EditorNotificationsImpl$updateEditors$job$1$2.invokeSuspend(EditorNotificationsImpl.kt:218)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:106)
	at com.intellij.openapi.application.TransactionGuardImpl$1.run(TransactionGuardImpl.java:193)
	at com.intellij.openapi.application.impl.ApplicationImpl.runIntendedWriteActionOnCurrentThread(ApplicationImpl.java:861)
	at com.intellij.openapi.application.impl.ApplicationImpl$4.run(ApplicationImpl.java:478)
	at com.intellij.openapi.application.impl.FlushQueue.doRun(FlushQueue.java:79)
	at com.intellij.openapi.application.impl.FlushQueue.runNextEvent(FlushQueue.java:121)
	at com.intellij.openapi.application.impl.FlushQueue.flushNow(FlushQueue.java:41)
	at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:318)
	at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:789)
	at java.desktop/java.awt.EventQueue$3.run(EventQueue.java:740)
	at java.desktop/java.awt.EventQueue$3.run(EventQueue.java:734)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:399)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
	at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:759)
	at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.kt:685)
	at com.intellij.ide.IdeEventQueue._dispatchEvent$lambda$10(IdeEventQueue.kt:589)
	at com.intellij.openapi.application.impl.ApplicationImpl.runWithoutImplicitRead(ApplicationImpl.java:1485)
	at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.kt:589)
	at com.intellij.ide.IdeEventQueue.access$_dispatchEvent(IdeEventQueue.kt:67)
	at com.intellij.ide.IdeEventQueue$dispatchEvent$processEventRunnable$1$1$1.compute(IdeEventQueue.kt:369)
	at com.intellij.ide.IdeEventQueue$dispatchEvent$processEventRunnable$1$1$1.compute(IdeEventQueue.kt:368)
	at com.intellij.openapi.progress.impl.CoreProgressManager.computePrioritized(CoreProgressManager.java:787)
	at com.intellij.ide.IdeEventQueue$dispatchEvent$processEventRunnable$1$1.invoke(IdeEventQueue.kt:368)
	at com.intellij.ide.IdeEventQueue$dispatchEvent$processEventRunnable$1$1.invoke(IdeEventQueue.kt:363)
	at com.intellij.ide.IdeEventQueueKt.performActivity$lambda$1(IdeEventQueue.kt:992)
	at com.intellij.openapi.application.TransactionGuardImpl.performActivity(TransactionGuardImpl.java:105)
	at com.intellij.ide.IdeEventQueueKt.performActivity(IdeEventQueue.kt:992)
	at com.intellij.ide.IdeEventQueue.dispatchEvent$lambda$7(IdeEventQueue.kt:363)
	at com.intellij.openapi.application.impl.ApplicationImpl.runIntendedWriteActionOnCurrentThread(ApplicationImpl.java:861)
	at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.kt:405)
	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)

What's the simplest, easiest way to reproduce this bug? Please provide a minimal example if possible.

Unclear. Though this is a pure coding error and even static analysis highlights it.

Which Intellij IDE are you using? Please provide the specific version.

CL-232.8660.186

What programming languages and tools are you using? Please provide specific versions.

No response

What Bazel plugin version are you using?

2023.08.01.0.1-api-version-232

Have you found anything relevant by searching the web?

No response

Any other information, logs, or outputs that you want to share?

No response

[ujohnny]

I'll fix this issue. The fix is pretty straightforward.