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java.lang.Throwable: 	at com.intellij.openapi.project.DumbServiceImpl.queueTask(DumbServiceImpl.java:164)	at com.intellij.openapi.roots.impl.PushedFilePropertiesUpdaterImpl.a(PushedFilePropertiesUpdaterImpl.java:183)	at com.intellij.openapi.roots.impl.PushedFilePropertiesUpdaterImpl.processAfterVfsChanges(PushedFilePropertiesUpdaterImpl.java:119)	at com.intellij.psi.impl.file.impl.PsiVFSListener$1.after(PsiVFSListener.java:83)	at sun.reflect.GeneratedMethodAccessor143.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.sendMessage(MessageBusImpl.java:341)	at com.intellij.util.messages.impl.MessageBusImpl.access$200(MessageBusImpl.java:42)	at com.intellij.util.messages.impl.MessageBusImpl$2.invoke(MessageBusImpl.java:226)	at com.sun.proxy.$Proxy189.validityChanged(Unknown Source)	at com.intellij.openapi.vfs.impl.VirtualFilePointerManagerImpl.after(VirtualFilePointerManagerImpl.java:512)	at sun.reflect.GeneratedMethodAccessor143.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.sendMessage(MessageBusImpl.java:343)	at com.intellij.util.messages.impl.MessageBusImpl.access$200(MessageBusImpl.java:42)	at com.intellij.util.messages.impl.MessageBusImpl$2.invoke(MessageBusImpl.java:226)	at com.sun.proxy.$Proxy18.after(Unknown Source)	at com.intellij.openapi.vfs.newvfs.persistent.PersistentFSImpl.processEvents(PersistentFSImpl.java:774)	at com.intellij.openapi.vfs.newvfs.RefreshSessionImpl.b(RefreshSessionImpl.java:203)	at com.intellij.openapi.vfs.newvfs.RefreshSessionImpl.fireEvents(RefreshSessionImpl.java:189)	at com.intellij.openapi.vfs.newvfs.RefreshQueueImpl.execute(RefreshQueueImpl.java:55)	at com.intellij.openapi.vfs.newvfs.RefreshSessionImpl.launch(RefreshSessionImpl.java:115)	at com.intellij.openapi.vfs.newvfs.RefreshQueueImpl.processSingleEvent(RefreshQueueImpl.java:128)	at com.intellij.openapi.vfs.newvfs.impl.VirtualDirectoryImpl.a(VirtualDirectoryImpl.java:254)	at com.intellij.openapi.vfs.newvfs.impl.VirtualDirectoryImpl.a(VirtualDirectoryImpl.java:96)	at com.intellij.openapi.vfs.newvfs.impl.VirtualDirectoryImpl.refreshAndFindChild(VirtualDirectoryImpl.java:261)	at com.intellij.openapi.vfs.newvfs.VfsImplUtil.refreshAndFindFileByPath(VfsImplUtil.java:137)	at com.intellij.openapi.vfs.impl.local.LocalFileSystemBase.refreshAndFindFileByPath(LocalFileSystemBase.java:74)	at com.intellij.openapi.vcs.changes.ChangesUtil.refreshAndFind(ChangesUtil.java:195)	at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)	at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)	at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)	at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)	at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1374)	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)	at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)	at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499)	at com.intellij.openapi.vcs.changes.ChangesUtil.getAfterRevisionsFiles(ChangesUtil.java:187)	at com.intellij.openapi.vcs.changes.ui.ChangesBrowserBase.c(ChangesBrowserBase.java:464)	at com.intellij.openapi.vcs.changes.ui.ChangesBrowserBase.calcData(ChangesBrowserBase.java:221)	at com.intellij.ide.impl.TypeSafeDataProviderAdapter.getData(TypeSafeDataProviderAdapter.java:47)	at com.intellij.ide.impl.DataManagerImpl.a(DataManagerImpl.java:81)	at com.intellij.ide.impl.DataManagerImpl.a(DataManagerImpl.java:69)	at com.intellij.ide.impl.DataManagerImpl.access$300(DataManagerImpl.java:55)	at com.intellij.ide.impl.DataManagerImpl$MyDataContext.a(DataManagerImpl.java:393)	at com.intellij.ide.impl.DataManagerImpl$MyDataContext.getData(DataManagerImpl.java:370)	at com.intellij.openapi.actionSystem.DataKey.getData(DataKey.java:75)	at com.intellij.ide.actions.BaseNavigateToSourceAction.getNavigatables(BaseNavigateToSourceAction.java:73)	at com.intellij.ide.actions.BaseNavigateToSourceAction.a(BaseNavigateToSourceAction.java:60)	at com.intellij.ide.actions.BaseNavigateToSourceAction.update(BaseNavigateToSourceAction.java:42)	at com.intellij.openapi.actionSystem.ex.ActionUtil.performDumbAwareUpdate(ActionUtil.java:123)