java.util.ConcurrentModificationException
	at java.base/java.util.ArrayList$Itr.checkForComodification(ArrayList.java:1013)
	at java.base/java.util.ArrayList$Itr.next(ArrayList.java:967)
	at spp.jetbrains.marker.service.SourceGuideProvider$getProvider$1$1.determineGuideMarks(SourceGuideProvider.kt:72)
	at spp.jetbrains.marker.service.SourceGuideProvider.determineGuideMarks$lambda-6(SourceGuideProvider.kt:64)
	at com.intellij.openapi.application.ReadAction.lambda$run$1(ReadAction.java:59)
	at com.intellij.openapi.application.impl.ApplicationImpl.runReadAction(ApplicationImpl.java:898)
	at com.intellij.openapi.application.ReadAction.compute(ReadAction.java:68)
	at com.intellij.openapi.application.ReadAction.run(ReadAction.java:58)
	at spp.jetbrains.marker.service.SourceGuideProvider.determineGuideMarks(SourceGuideProvider.kt:61)
	at spp.jetbrains.marker.SourceMarker$getSourceFileMarker$1.invokeSuspend(SourceMarker.kt:120)
	at spp.jetbrains.marker.SourceMarker$getSourceFileMarker$1.invoke(SourceMarker.kt)
	at spp.jetbrains.marker.SourceMarker$getSourceFileMarker$1.invoke(SourceMarker.kt)
	at spp.jetbrains.ScopeExtensions$safeGlobalLaunch$1$1.invokeSuspend(ScopeExtensions.kt:61)
	at spp.jetbrains.ScopeExtensions$safeGlobalLaunch$1$1.invoke(ScopeExtensions.kt)
	at spp.jetbrains.ScopeExtensions$safeGlobalLaunch$1$1.invoke(ScopeExtensions.kt)
	at spp.jetbrains.ScopeExtensions.safeExecute(ScopeExtensions.kt:52)
	at spp.jetbrains.ScopeExtensions$safeGlobalLaunch$1.invokeSuspend(ScopeExtensions.kt:60)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:106)
	at kotlinx.coroutines.scheduling.CoroutineScheduler.runSafely(CoroutineScheduler.kt:570)
	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.executeTask(CoroutineScheduler.kt:750)
	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.runWorker(CoroutineScheduler.kt:677)
	at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:664)