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Argument for @NotNull parameter 'iterable' of com/intellij/util/containers/ContainerUtil.or must not be null
java.lang.IllegalArgumentException: Argument for @NotNull parameter 'iterable' of com/intellij/util/containers/ContainerUtil.or must not be null	at com.intellij.util.containers.ContainerUtil.or(ContainerUtil.java)	at org.jetbrains.idea.perforce.perforce.connections.PerforceConnectionManager.isUnderProjectConnections(PerforceConnectionManager.java:182)	at org.jetbrains.idea.perforce.application.PerforceManager.getFileByDepotName(PerforceManager.java:335)	at org.jetbrains.idea.perforce.perforce.PerforceRunner.createPerforceChanges(PerforceRunner.java:644)	at org.jetbrains.idea.perforce.perforce.PerforceRunner.fillChangeCache(PerforceRunner.java:735)	at org.jetbrains.idea.perforce.application.PerforceChangeProvider.getPendingChangeListsUnderRoots(PerforceChangeProvider.java:211)	at org.jetbrains.idea.perforce.application.PerforceChangeProvider.calcChangeListMap(PerforceChangeProvider.java:202)	at org.jetbrains.idea.perforce.application.PerforceChangeProvider.getChanges(PerforceChangeProvider.java:74)	at com.intellij.openapi.vcs.changes.ChangeListManagerImpl.a(ChangeListManagerImpl.java:690)	at com.intellij.openapi.vcs.changes.ChangeListManagerImpl.a(ChangeListManagerImpl.java:604)	at com.intellij.openapi.vcs.changes.ChangeListManagerImpl.b(ChangeListManagerImpl.java:491)	at com.intellij.openapi.progress.impl.CoreProgressManager$3.run(CoreProgressManager.java:179)	at com.intellij.openapi.progress.impl.CoreProgressManager.a(CoreProgressManager.java:568)	at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:519)	at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:54)	at com.intellij.openapi.progress.impl.CoreProgressManager.runProcess(CoreProgressManager.java:164)	at com.intellij.openapi.vcs.changes.ChangeListManagerImpl.c(ChangeListManagerImpl.java:491)	at com.intellij.openapi.vcs.changes.ChangeListManagerImpl.access$500(ChangeListManagerImpl.java:67)	at com.intellij.openapi.vcs.changes.ChangeListManagerImpl$ActualUpdater.run(ChangeListManagerImpl.java:398)	at com.intellij.openapi.vcs.changes.UpdateRequestsQueue$MyRunnable.run(UpdateRequestsQueue.java:269)	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)	at java.util.concurrent.FutureTask.run(FutureTask.java:266)	at com.intellij.util.concurrency.SchedulingWrapper$MyScheduledFutureTask.run(SchedulingWrapper.java:237)	at com.intellij.util.concurrency.BoundedTaskExecutor$2.run(BoundedTaskExecutor.java:210)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)	at java.lang.Thread.run(Thread.java:745)