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HistoryUITestCase/testHistoryUpdateAfterBackNavigation: attempt # 0 <unknown>: line 0 failed: caught "NSInvalidArgumentException", "*** -[__NSPlaceholderArray initWithObjects:count:]: attempt to insert nil object from objects[0]" ( 0 CoreFoundation 0x00000001165711e6 __exceptionPreprocess + 294 1 libobjc.A.dylib 0x000000011ba47031 objc_exception_throw + 48 2 CoreFoundation 0x00000001165b10bc _CFThrowFormattedException + 194 3 CoreFoundation 0x000000011647e45d -[__NSPlaceholderArray initWithObjects:count:] + 237 4 CoreFoundation 0x0000000116484e24 +[NSArray arrayWithObjects:count:] + 52 5 ios_chrome_ui_egtests 0x0000000101a21a94 -[TableViewClearBrowsingDataCell accessibilityValue] + 500 6 EarlGrey 0x00000001184acb64 -[NSObject(GREYAdditions) grey_description] + 1124 7 EarlGrey 0x00000001184c0f15 +[GREYElementHierarchy grey_printDescriptionForElement:atLevel:] + 453 8 EarlGrey 0x00000001184c0b71 __82+[GREYElementHierarchy grey_hierarchyString:outputString:andAnnotationDictionary:]_block_invoke + 193 9 EarlGrey 0x0000000118502765 -[GREYTraversalDFS enumerateUsingBlock:] + 389 10 EarlGrey 0x00000001184c0a16 +[GREYElementHierarchy grey_hierarchyString:outputString:andAnnotationDictionary:] + 646 11 EarlGrey 0x00000001184c0253 +[GREYElementHierarchy hierarchyStringForElement:] + 339 12 EarlGrey 0x00000001184c0650 +[GREYElementHierarchy hierarchyStringForAllUIWindows] + 512 13 EarlGrey 0x00000001184c11f7 I_GREYErrorMake + 615 14 EarlGrey 0x00000001184c2d57 +[GREYFailureFormatter formatFailureForTestCase:failureLabel:failureName:filePath:lineNumber:functionName:stackTrace:appScreenshots:format:] + 807 15 EarlGrey 0x00000001184e6d11 -[GREYDefaultFailureHandler handleException:details:] + 1537 16 ios_chrome_ui_egtests 0x000000010216cff5 +[ChromeEarlGrey clearBrowsingHistory] + 1685 17 ios_chrome_ui_egtests 0x000000010224b091 -[HistoryUITestCase setUp] + 433 18 EarlGrey 0x00000001184bb72e -[XCTestCase(GREYAdditions) grey_setUp] + 94 19 XCTest 0x00000001179a2c74 -[XCTestCase(Failures) performFailableBlock:testCaseRun:shouldInterruptTest:] + 57 20 XCTest 0x00000001179a2b91 -[XCTestCase(Failures) _performTurningExceptionsIntoFailuresInterruptAfterHandling:block:] + 96 21 XCTest 0x000000011794af61 __24-[XCTestCase invokeTest]_block_invoke_3 + 89 22 XCTest 0x00000001179b2db2 -[XCTContext _runActivityNamed:type:block:] + 304 23 XCTest 0x00000001179537d6 -[XCTestCase startActivityWithTitle:type:block:] + 218 24 XCTest 0x00000001179539b3 -[XCTestCase startActivityWithTitle:block:] + 60 25 XCTest 0x000000011794aadf __24-[XCTestCase invokeTest]_block_invoke + 342 26 XCTest 0x00000001179a8b7e -[XCUITestContext performInScope:] + 248 27 XCTest 0x000000011794a8ce -[XCTestCase testContextPerformInScope:] + 98 28 XCTest 0x000000011794a97c -[XCTestCase invokeTest] + 137 29 EarlGrey 0x00000001184bb20f -[XCTestCase(GREYAdditions) grey_invokeTest] + 1071 30 XCTest 0x000000011794c4b7 __26-[XCTestCase performTest:]_block_invoke_2 + 43 31 XCTest 0x00000001179a2c74 -[XCTestCase(Failures) performFailableBlock:testCaseRun:shouldInterruptTest:] + 57 32 XCTest 0x00000001179a2b91 -[XCTestCase(Failures) _performTurningExceptionsIntoFailuresInterruptAfterHandling:block:] + 96 33 XCTest 0x000000011794c3ce __26-[XCTestCase performTest:]_block_invoke.330 + 88 34 XCTest 0x00000001179b344b +[XCTContext runInContextForTestCase:block:] + 225 35 XCTest 0x000000011794bafd -[XCTestCase performTest:] + 675 36 XCTest 0x000000011798f1a2 -[XCTest runTest] + 57 37 XCTest 0x0000000117946ccb __27-[XCTestSuite performTest:]_block_invoke + 365 38 XCTest 0x00000001179464a3 -[XCTestSuite _performProtectedSectionForTest:testSection:] + 55 39 XCTest 0x0000000117946766 -[XCTestSuite performTest:] + 296 40 XCTest 0x000000011798f1a2 -[XCTest runTest] + 57 41 XCTest 0x00000001179bf491 __102-[XCTTestRunSession executeTestIdentifiers:skippingTestIdentifiers:completionHandler:completionQueue:]_block_invoke + 256 42 XCTest 0x00000001179befa7 __44-[XCTTestRunSession runTestsAndReturnError:]_block_invoke.80 + 68 43 XCTest 0x000000011795ebc1 -[XCTestObservationCenter _observeTestExecutionForBlock:] + 585 44 XCTest 0x00000001179bebfa -[XCTTestRunSession runTestsAndReturnError:] + 623 45 XCTest 0x000000011792b6b6 -[XCTestDriver runTestsAndReturnError:] + 422 46 XCTest 0x00000001179af9cd _XCTestMain + 1478 47 libXCTestBundleInject.dylib 0x00000001142acbb8 __copy_helper_block_ + 0 48 CoreFoundation 0x0000000116513b0c __CFRUNLOOP_IS_CALLING_OUT_TO_A_BLOCK__ + 12 49 CoreFoundation 0x00000001164f82db __CFRunLoopDoBlocks + 331 50 CoreFoundation 0x00000001164f7a84 __CFRunLoopRun + 1284 51 CoreFoundation 0x00000001164f730b CFRunLoopRunSpecific + 635 52 GraphicsServices 0x000000011ced3a73 GSEventRunModal + 62 53 UIKit 0x00000001142e2057 UIApplicationMain + 159 54 ios_chrome_ui_egtests 0x000000010046aa73 _ZN12_GLOBAL__N_120RunUIApplicationMainEiPPc + 355 55 ios_chrome_ui_egtests 0x000000010046a541 main + 417 56 libdyld.dylib 0x000000011e2e6955 start + 1 57 ??? 0x0000000000000005 0x0 + 5 ) <unknown>: line 0 failed: caught "NSInvalidArgumentException", "*** -[__NSPlaceholderArray initWithObjects:count:]: attempt to insert nil object from objects[0]" ( 0 CoreFoundation 0x00000001165711e6 __exceptionPreprocess + 294 1 libobjc.A.dylib 0x000000011ba47031 objc_exception_throw + 48 2 CoreFoundation 0x00000001165b10bc _CFThrowFormattedException + 194 3 CoreFoundation 0x000000011647e45d -[__NSPlaceholderArray initWithObjects:count:] + 237 4 CoreFoundation 0x0000000116484e24 +[NSArray arrayWithObjects:count:] + 52 5 ios_chrome_ui_egtests 0x0000000101a21a94 -[TableViewClearBrowsingDataCell accessibilityValue] + 500 6 EarlGrey 0x00000001184acb64 -[NSObject(GREYAdditions) grey_description] + 1124 7 EarlGrey 0x00000001184c0f15 +[GREYElementHierarchy grey_printDescriptionForElement:atLevel:] + 453 8 EarlGrey 0x00000001184c0b71 __82+[GREYElementHierarchy grey_hierarchyString:outputString:andAnnotationDictionary:]_block_invoke + 193 9 EarlGrey 0x0000000118502765 -[GREYTraversalDFS enumerateUsingBlock:] + 389 10 EarlGrey 0x00000001184c0a16 +[GREYElementHierarchy grey_hierarchyString:outputString:andAnnotationDictionary:] + 646 11 EarlGrey 0x00000001184c0253 +[GREYElementHierarchy hierarchyStringForElement:] + 339 12 EarlGrey 0x00000001184c0650 +[GREYElementHierarchy hierarchyStringForAllUIWindows] + 512 13 EarlGrey 0x00000001184c11f7 I_GREYErrorMake + 615 14 EarlGrey 0x00000001184d35f8 -[GREYElementInteraction matchedElementsWithTimeout:error:] + 1640 15 EarlGrey 0x00000001184d5233 __46-[GREYElementInteraction performAction:error:]_block_invoke + 243 16 EarlGrey 0x00000001184ff454 __59-[GREYUIThreadExecutor executeSyncWithTimeout:block:error:]_block_invoke + 68 17 EarlGrey 0x00000001184fcacf __54-[GREYRunLoopSpinner grey_checkConditionInActiveMode:]_block_invoke + 271 18 CoreFoundation 0x0000000116513b0c __CFRUNLOOP_IS_CALLING_OUT_TO_A_BLOCK__ + 12 19 CoreFoundation 0x00000001164f82db __CFRunLoopDoBlocks + 331 20 CoreFoundation 0x00000001164f7a5e __CFRunLoopRun + 1246 21 CoreFoundation 0x00000001164f730b CFRunLoopRunSpecific + 635 22 EarlGrey 0x00000001184fc8ce -[GREYRunLoopSpinner grey_checkConditionInActiveMode:] + 350 23 EarlGrey 0x00000001184fbaab -[GREYRunLoopSpinner spinWithStopConditionBlock:] + 267 24 EarlGrey 0x00000001184feed1 -[GREYUIThreadExecutor executeSyncWithTimeout:block:error:] + 993 25 EarlGrey 0x00000001184d47a8 -[GREYElementInteraction performAction:error:] + 1768 26 ios_chrome_ui_egtests 0x000000010224b2b3 -[HistoryUITestCase tearDown] + 403 27 EarlGrey 0x00000001184bb7be -[XCTestCase(GREYAdditions) grey_tearDown] + 94 28 XCTest 0x00000001179a2c74 -[XCTestCase(Failures) performFailableBlock:testCaseRun:shouldInterruptTest:] + 57 29 XCTest 0x00000001179a2b91 -[XCTestCase(Failures) _performTurningExceptionsIntoFailuresInterruptAfterHandling:block:] + 96 30 XCTest 0x000000011794c671 __51-[XCTestCase _performTearDownSequenceWithSelector:]_block_invoke + 99 31 XCTest 0x00000001179b2db2 -[XCTContext _runActivityNamed:type:block:] + 304 32 XCTest 0x00000001179537d6 -[XCTestCase startActivityWithTitle:type:block:] + 218 33 XCTest 0x00000001179539b3 -[XCTestCase startActivityWithTitle:block:] + 60 34 XCTest 0x000000011794c5f3 -[XCTestCase _performTearDownSequenceWithSelector:] + 92 35 XCTest 0x000000011794ae6d __24-[XCTestCase invokeTest]_block_invoke + 1252 36 XCTest 0x00000001179a8b7e -[XCUITestContext performInScope:] + 248 37 XCTest 0x000000011794a8ce -[XCTestCase testContextPerformInScope:] + 98 38 XCTest 0x000000011794a97c -[XCTestCase invokeTest] + 137 39 EarlGrey 0x00000001184bb20f -[XCTestCase(GREYAdditions) grey_invokeTest] + 1071 40 XCTest 0x000000011794c4b7 __26-[XCTestCase performTest:]_block_invoke_2 + 43 41 XCTest 0x00000001179a2c74 -[XCTestCase(Failures) performFailableBlock:testCaseRun:shouldInterruptTest:] + 57 42 XCTest 0x00000001179a2b91 -[XCTestCase(Failures) _performTurningExceptionsIntoFailuresInterruptAfterHandling:block:] + 96 43 XCTest 0x000000011794c3ce __26-[XCTestCase performTest:]_block_invoke.330 + 88 44 XCTest 0x00000001179b344b +[XCTContext runInContextForTestCase:block:] + 225 45 XCTest 0x000000011794bafd -[XCTestCase performTest:] + 675 46 XCTest 0x000000011798f1a2 -[XCTest runTest] + 57 47 XCTest 0x0000000117946ccb __27-[XCTestSuite performTest:]_block_invoke + 365 48 XCTest 0x00000001179464a3 -[XCTestSuite _performProtectedSectionForTest:testSection:] + 55 49 XCTest 0x0000000117946766 -[XCTestSuite performTest:] + 296 50 XCTest 0x000000011798f1a2 -[XCTest runTest] + 57 51 XCTest 0x00000001179bf491 __102-[XCTTestRunSession executeTestIdentifiers:skippingTestIdentifiers:completionHandler:completionQueue:]_block_invoke + 256 52 XCTest 0x00000001179befa7 __44-[XCTTestRunSession runTestsAndReturnError:]_block_invoke.80 + 68 53 XCTest 0x000000011795ebc1 -[XCTestObservationCenter _observeTestExecutionForBlock:] + 585 54 XCTest 0x00000001179bebfa -[XCTTestRunSession runTestsAndReturnError:] + 623 55 XCTest 0x000000011792b6b6 -[XCTestDriver runTestsAndReturnError:] + 422 56 XCTest 0x00000001179af9cd _XCTestMain + 1478 57 libXCTestBundleInject.dylib 0x00000001142acbb8 __copy_helper_block_ + 0 58 CoreFoundation 0x0000000116513b0c __CFRUNLOOP_IS_CALLING_OUT_TO_A_BLOCK__ + 12 59 CoreFoundation 0x00000001164f82db __CFRunLoopDoBlocks + 331 60 CoreFoundation 0x00000001164f7a84 __CFRunLoopRun + 1284 61 CoreFoundation 0x00000001164f730b CFRunLoopRunSpecific + 635 62 GraphicsServices 0x000000011ced3a73 GSEventRunModal + 62 63 UIKit 0x00000001142e2057 UIApplicationMain + 159 64 ios_chrome_ui_egtests 0x000000010046aa73 _ZN12_GLOBAL__N_120RunUIApplicationMainEiPPc + 355 65 ios_chrome_ui_egtests 0x000000010046a541 main + 417 66 libdyld.dylib 0x000000011e2e6955 start + 1 67 ??? 0x0000000000000005 0x0 + 5 )