NullSafeMutableLiveData on 2.3.0-alpha05 [159987480]

Fixed

Bug

Status Update

No update yet.

Description

my...@gmail.com

created issue #1

Jun 26, 2020 04:38PM

Component & version used:

val lifecycleVersion = "2.3.0-alpha05"
implementation("androidx.lifecycle:lifecycle-common-java8:$lifecycleVersion")
implementation("androidx.lifecycle:lifecycle-livedata-ktx:$lifecycleVersion")
implementation("androidx.lifecycle:lifecycle-runtime-ktx:$lifecycleVersion")

Devices/Android versions reproduced on: N/A

Source code: https://github.com/Mygod/VPNHotspot/commit/cc14f607ef48bba755350e68bef68c0f256377fd

Circle CI build: https://app.circleci.com/pipelines/github/Mygod/VPNHotspot/92/workflows/6676d5ec-59eb-4353-845a-4a398c53d90f/jobs/459/steps (should be accessible with any account)

Relevant part of compiler output:

* What went wrong:
Execution failed for task ':mobile:lint'.
> Lint found errors in the project; aborting build.
  
  Fix the issues identified by lint, or add the following to your build script to proceed with errors:
  ...
  android {
      lintOptions {
          abortOnError false
      }
  }
  ...
  The first 3 errors (out of 6) were:
  
  /home/circleci/code/mobile/src/main/java/be/mygod/vpnhotspot/client/ClientViewModel.kt: Error: Unexpected failure during lint analysis of ClientViewModel.kt (this is a bug in lint or one of the libraries it depends on)
  
  Message: null cannot be cast to non-null type org.jetbrains.uast.UAnnotated
  
  The crash seems to involve the detector androidx.lifecycle.lint.NonNullableMutableLiveDataDetector.
  You can try disabling it with something like this:
      android {
          lintOptions {
              disable "NullSafeMutableLiveData"
          }
      }
  
  Stack: TypeCastException:NonNullableMutableLiveDataDetectorKt.isNullable(NonNullableMutableLiveDataDetector.kt:197)←NonNullableMutableLiveDataDetector.visitMethodCall(NonNullableMutableLiveDataDetector.kt:133)←UElementVisitor$DelegatingPsiVisitor.visitMethodCallExpression(UElementVisitor.kt:1079)←UElementVisitor$DelegatingPsiVisitor.visitCallExpression(UElementVisitor.kt:1059)←KotlinUFunctionCallExpression.accept(KotlinUFunctionCallExpression.kt:205)←UQualifiedReferenceExpression$DefaultImpls.accept(UQualifiedReferenceExpression.kt:34)←KotlinUQualifiedReferenceExpression.accept(KotlinUQualifiedReferenceExpression.kt:27)←ImplementationUtilsKt.acceptList(implementationUtils.kt:23)
  
  You can set environment variable LINT_PRINT_STACKTRACE=true to dump a full stacktrace to stdout. [LintError]

Comments

my...@gmail.com <my...@gmail.com> #2Jun 26, 2020 05:34PM

Can you share emulator version and crash logs.

se...@google.com <se...@google.com> Jul 2, 2020 04:26PM

Reassigned to jb...@google.com.

jb...@google.com <jb...@google.com> #3Jul 8, 2020 09:07PM

Facing same bug

my...@gmail.com <my...@gmail.com> #4Jul 8, 2020 09:29PM

Hi, thanks for the report. Can you describe the problem in more detail? Does this happen every time?

jb...@google.com <jb...@google.com> #5Jul 8, 2020 09:47PM

Status: Won't Fix (Not Reproducible)

Yes it happens every time whenever I close the emulator after updating to
the latest version of the emulator.

On Fri, Dec 14, 2018 at 5:34 AM <buganizer-system@google.com> wrote:

- Show quoted text -

--

*Sachin Malik*

*Android Developer - Caringforyou IT solutions*

Call: +91 <

http://nitinsinhame.net/>8802729349 | Mail:
sachinmalik413@gmail.com

Please consider the environment before printing this email

my...@gmail.com <my...@gmail.com> #6Jul 9, 2020 12:16AM

That's quite weird. What system specs do you have? We recently started using mapped files to save guest RAM snapshots. If there is existing corruption on your disk, this might trip issues. Can you try again after running

echo "QuickbootFileBacked = off" >> ~/.android/advancedFeatures.ini

?

jb...@google.com <jb...@google.com> #7Jul 9, 2020 06:13PM

Status: Assigned (reopened)

Same here, mac just reboots after quitting emulator. My colleague next to me is also having this problem, we're both using latest emulator ( v28.0.20 ) on macOS Mojave 10.14.1. I got this crash log here:

Anonymous UUID: 2F1DEC0E-5787-1053-5890-B5BD9F65B709

Fri Dec 14 14:13:50 2018

*** Panic Report ***
panic(cpu 6 caller 0xffffff800f2d84dd): Kernel trap at 0xffffff7f9182c7a3, type 14=page fault, registers:
CR0: 0x0000000080010033, CR2: 0x0000000000000000, CR3: 0x00000002e28b6141, CR4: 0x00000000001626e0
RAX: 0x0000000000000040, RBX: 0xffffff804783c000, RCX: 0x0000000000000000, RDX: 0xffffff9224dc38f0
RSP: 0xffffff9224dc37a0, RBP: 0xffffff9224dc37d0, RSI: 0xffffff9224dc38d8, RDI: 0x0000000000000000
R8: 0xffffff8042576ec0, R9: 0x0000000000000040, R10: 0xffffff800fa9d8e8, R11: 0xffffff7f918032c0
R12: 0x0000000000000000, R13: 0x0000000000000000, R14: 0xffffff9224dc38f0, R15: 0xffffff9224dc38d8
RFL: 0x0000000000010246, RIP: 0xffffff7f9182c7a3, CS: 0x0000000000000008, SS: 0x0000000000000010
Fault CR2: 0x0000000000000000, Error code: 0x0000000000000000, Fault CPU: 0x6, PL: 0, VF: 0

Backtrace (CPU 6), Frame : Return Address
0xffffff9224dc3270 : 0xffffff800f1aca9d
0xffffff9224dc32c0 : 0xffffff800f2e6893
0xffffff9224dc3300 : 0xffffff800f2d82ba
0xffffff9224dc3370 : 0xffffff800f159ca0
0xffffff9224dc3390 : 0xffffff800f1ac4b7
0xffffff9224dc34b0 : 0xffffff800f1ac303
0xffffff9224dc3520 : 0xffffff800f2d84dd
0xffffff9224dc3690 : 0xffffff800f159ca0
0xffffff9224dc36b0 : 0xffffff7f9182c7a3
0xffffff9224dc37d0 : 0xffffff7f9180355b
0xffffff9224dc3a40 : 0xffffff800f886779
0xffffff9224dc3a90 : 0xffffff800f88522b
0xffffff9224dc3ae0 : 0xffffff7f902c9fa4
0xffffff9224dc3b30 : 0xffffff800f88e52f
0xffffff9224dc3c70 : 0xffffff800f292ef4
0xffffff9224dc3d80 : 0xffffff800f1b218d
0xffffff9224dc3dd0 : 0xffffff800f18cb45
0xffffff9224dc3e50 : 0xffffff800f1a14fe
0xffffff9224dc3ef0 : 0xffffff800f2bfa0b
0xffffff9224dc3fa0 : 0xffffff800f15a486
Kernel Extensions in backtrace:
com.apple.iokit.IOAcceleratorFamily2(400.27)[5BC3E111-E908-36E8-9AFB-A39BD0D561D5]@0xffffff7f902aa000->0xffffff7f9034efff
dependency: com.apple.driver.AppleMobileFileIntegrity(1.0.5)[66A1BDE1-514B-3B0D-87DD-8E2B9F110A8C]@0xffffff7f8ffb9000
dependency: com.apple.iokit.IOSurface(255.1)[B153C6D6-2542-3D6F-A21F-B56D9E1349DF]@0xffffff7f90227000
dependency: com.apple.iokit.IOPCIFamily(2.9)[7DE930EC-AB73-3F5A-9D38-94D5EE90D197]@0xffffff7f8fa95000
dependency: com.apple.iokit.IOGraphicsFamily(530.12)[9D1E5FA7-267E-397E-9C91-1751221A05CF]@0xffffff7f9024b000
dependency: com.apple.iokit.IOReportFamily(47)[6A9FF3E1-E644-3F33-8A44-8B51C44AA67C]@0xffffff7f902a3000
com.apple.driver.AppleIntelHD5000Graphics(12.0.2)[D8908CD8-D54B-3FD5-B1CF-76BB24CBF2EA]@0xffffff7f917fa000->0xffffff7f91874fff
dependency: com.apple.iokit.IOSurface(255.1)[B153C6D6-2542-3D6F-A21F-B56D9E1349DF]@0xffffff7f90227000
dependency: com.apple.iokit.IOPCIFamily(2.9)[7DE930EC-AB73-3F5A-9D38-94D5EE90D197]@0xffffff7f8fa95000
dependency: com.apple.iokit.IOGraphicsFamily(530.12)[9D1E5FA7-267E-397E-9C91-1751221A05CF]@0xffffff7f9024b000
dependency: com.apple.iokit.IOAcceleratorFamily2(400.27)[5BC3E111-E908-36E8-9AFB-A39BD0D561D5]@0xffffff7f902aa000

BSD process name corresponding to current thread: qemu-system-x86_

Mac OS version:
18B75

Kernel version:
Darwin Kernel Version 18.2.0: Fri Oct 5 19:41:49 PDT 2018; root:xnu-4903.221.2~2/RELEASE_X86_64
Kernel UUID: 5D53F7E4-472A-369D-97D8-4DD877A4BDFF
Kernel slide: 0x000000000ee00000
Kernel text base: 0xffffff800f000000
__HIB text base: 0xffffff800ef00000
System model name: MacBookPro11,4 (Mac-06F11FD93F0323C5)

System uptime in nanoseconds: 3586867061532
last loaded kext at 1915749470274: com.apple.driver.usb.cdc.acm 5.0.0 (addr 0xffffff7f94d06000, size 32768)
loaded kexts:
com.intel.kext.intelhaxm 7.3.2
com.apple.filesystems.msdosfs 1.10
com.apple.driver.AudioAUUC 1.70
com.apple.fileutil 1
com.apple.filesystems.autofs 3.0
com.apple.driver.AppleUpstreamUserClient 3.6.5
com.apple.driver.AppleHDAHardwareConfigDriver 282.10
com.apple.driver.AppleHDA 282.10
com.apple.driver.ApplePlatformEnabler 2.7.0d0
com.apple.driver.AGPM 110.23.46
com.apple.driver.X86PlatformShim 1.0.0
com.apple.driver.AppleGraphicsDevicePolicy 3.25.6
com.apple.AGDCPluginDisplayMetrics 3.25.6
com.apple.driver.AppleHV 1
com.apple.driver.AGDCBacklightControl 3.25.6
com.apple.driver.AppleIntelHD5000Graphics 12.0.2
com.apple.iokit.IOUserEthernet 1.0.1
com.apple.iokit.IOBluetoothSerialManager 6.0.9f2
com.apple.driver.pmtelemetry 1
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.driver.AppleBacklight 170.12.11
com.apple.iokit.BroadcomBluetooth20703USBTransport 6.0.9f2
com.apple.driver.eficheck 1
com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0
com.apple.driver.AppleIntelSlowAdaptiveClocking 4.0.0
com.apple.driver.AppleIntelFramebufferAzul 12.0.2
com.apple.driver.AppleFIVRDriver 4.1.0
com.apple.driver.AppleCameraInterface 6.8.0
com.apple.driver.AppleLPC 3.1
com.apple.driver.AppleMuxControl 3.25.6
com.apple.driver.AppleSMCLMU 212
com.apple.driver.AppleOSXWatchdog 1
com.apple.driver.AppleThunderboltIP 3.1.2
com.apple.driver.AppleMCCSControl 1.5.6
com.apple.iokit.IOBluetoothUSBDFU 6.0.9f2
com.apple.iokit.SCSITaskUserClient 408.200.1
com.apple.driver.AppleTopCaseHIDEventDriver 138.2
com.apple.driver.AppleUSBStorageCoexistentDriver 456.200.8
com.apple.driver.AppleUSBTopCaseDriver 138.2
com.apple.driver.AppleUSBCardReader 456.200.8
com.apple.filesystems.apfs 945.220.38
com.apple.driver.AirPort.BrcmNIC 1400.1.1
com.apple.driver.AppleAHCIPort 329.200.2
com.apple.driver.AppleFileSystemDriver 3.0.1
com.apple.driver.AppleVirtIO 2.0.9
com.apple.filesystems.hfs.kext 407.200.4
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
com.apple.BootCache 40
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0
com.apple.AppleSystemPolicy 1.0
com.apple.private.KextAudit 1.0
com.apple.driver.AppleSmartBatteryManager 161.0.0
com.apple.driver.AppleACPIButtons 6.1
com.apple.driver.AppleRTC 2.0
com.apple.driver.AppleHPET 1.8
com.apple.driver.AppleSMBIOS 2.1
com.apple.driver.AppleACPIEC 6.1
com.apple.driver.AppleAPIC 1.7
com.apple.nke.applicationfirewall 190
com.apple.security.TMSafetyNet 8
com.apple.driver.usb.cdc.acm 5.0.0
com.apple.driver.usb.serial 6.0.0
com.apple.driver.usb.cdc.ecm 5.0.0
com.apple.kext.triggers 1.0
com.apple.driver.DspFuncLib 282.10
com.apple.kext.OSvKernDSPLib 527
com.apple.iokit.IOAVBFamily 710.1
com.apple.plugin.IOgPTPPlugin 700.7
com.apple.iokit.IOEthernetAVBController 1.1.0
com.apple.driver.AppleSSE 1.0
com.apple.driver.AppleBacklightExpert 1.1.0
com.apple.iokit.IONDRVSupport 530
com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 6.0.9f2
com.apple.iokit.IOBluetoothHostControllerUSBTransport 6.0.9f2
com.apple.iokit.IOBluetoothHostControllerTransport 6.0.9f2
com.apple.driver.IOPlatformPluginLegacy 1.0.0
com.apple.driver.X86PlatformPlugin 1.0.0
com.apple.AppleGPUWrangler 3.25.6
com.apple.iokit.IOSlowAdaptiveClockingFamily 1.0.0
com.apple.driver.AppleHDAController 282.10
com.apple.iokit.IOHDAFamily 282.10
com.apple.iokit.IOAcceleratorFamily2 400.27
com.apple.iokit.IOSurface 255.1
com.apple.driver.IOPlatformPluginFamily 6.0.0d8
com.apple.driver.AppleSMBusPCI 1.0.14d1
com.apple.AppleGraphicsDeviceControl 3.25.6
com.apple.driver.AppleGraphicsControl 3.25.6
com.apple.driver.AppleThunderboltEDMSink 4.2.0
com.apple.driver.AppleThunderboltDPOutAdapter 5.5.8
com.apple.driver.AppleSMBusController 1.0.18d1
com.apple.iokit.IOGraphicsFamily 530.12
com.apple.driver.usb.ethernet.asix 5.0.0
com.apple.driver.AppleHSBluetoothDriver 138.2
com.apple.driver.IOBluetoothHIDDriver 6.0.9f2
com.apple.iokit.IOBluetoothFamily 6.0.9f2
com.apple.driver.AppleActuatorDriver 2410.5
com.apple.iokit.IOUSBMassStorageClass 4.0.4
com.apple.driver.AppleHIDKeyboard 208
com.apple.driver.AppleMultitouchDriver 2410.5
com.apple.driver.AppleInputDeviceSupport 2410.2
com.apple.driver.AppleUSBAudio 315.6
com.apple.driver.usb.IOUSBHostHIDDevice 1.2
com.apple.iokit.IOAudioFamily 206.5
com.apple.vecLib.kext 1.2.0
com.apple.driver.usb.cdc 5.0.0
com.apple.driver.usb.networking 5.0.0
com.apple.driver.usb.AppleUSBHostCompositeDevice 1.2
com.apple.driver.AppleThunderboltDPInAdapter 5.5.8
com.apple.driver.AppleThunderboltDPAdapterFamily 5.5.8
com.apple.driver.AppleThunderboltPCIDownAdapter 2.1.4
com.apple.driver.AppleXsanScheme 3
com.apple.iokit.IOAHCIBlockStorage 301.200.2
com.apple.driver.AppleThunderboltNHI 4.7.6
com.apple.iokit.IOThunderboltFamily 6.8.1
com.apple.iokit.IO80211Family 1200.12.2
com.apple.driver.mDNSOffloadUserClient 1.0.1b8
com.apple.driver.corecapture 1.0.4
com.apple.driver.AppleUSBMergeNub 900.4.2
com.apple.driver.AppleIntelLpssGspi 3.0.60
com.apple.driver.usb.AppleUSBXHCIPCI 1.2
com.apple.driver.usb.AppleUSBXHCI 1.2
com.apple.iokit.IOAHCIFamily 288
com.apple.iokit.IOSerialFamily 11
com.apple.filesystems.hfs.encodings.kext 1
com.apple.driver.usb.AppleUSBHostPacketFilter 1.0
com.apple.iokit.IOUSBFamily 900.4.2
com.apple.driver.AppleUSBHostMergeProperties 1.2
com.apple.driver.AppleEFINVRAM 2.1
com.apple.driver.AppleEFIRuntime 2.1
com.apple.iokit.IOSMBusFamily 1.1
com.apple.iokit.IOHIDFamily 2.0.0
com.apple.security.quarantine 3
com.apple.security.sandbox 300.0
com.apple.kext.AppleMatch 1.0.0d1
com.apple.driver.DiskImages 493.0.0
com.apple.driver.AppleFDEKeyStore 28.30
com.apple.driver.AppleEffaceableStorage 1.0
com.apple.driver.AppleKeyStore 2
com.apple.driver.AppleUSBTDM 456.200.8
com.apple.driver.AppleMobileFileIntegrity 1.0.5
com.apple.kext.CoreTrust 1
com.apple.iokit.IOUSBMassStorageDriver 145.200.2
com.apple.iokit.IOSCSIBlockCommandsDevice 408.200.1
com.apple.iokit.IOSCSIArchitectureModelFamily 408.200.1
com.apple.iokit.IOStorageFamily 2.1
com.apple.driver.AppleCredentialManager 1.0
com.apple.driver.KernelRelayHost 1
com.apple.iokit.IOUSBHostFamily 1.2
com.apple.driver.usb.AppleUSBCommon 1.0
com.apple.driver.AppleBusPowerController 1.0
com.apple.driver.AppleSEPManager 1.0.1
com.apple.driver.IOSlaveProcessor 1
com.apple.iokit.IOReportFamily 47
com.apple.iokit.IOTimeSyncFamily 700.7
com.apple.iokit.IONetworkingFamily 3.4
com.apple.driver.AppleACPIPlatform 6.1
com.apple.driver.AppleSMC 3.1.9
com.apple.iokit.IOPCIFamily 2.9
com.apple.iokit.IOACPIFamily 1.4
com.apple.kec.pthread 1
com.apple.kec.Libm 1
com.apple.kec.corecrypto 1.0

EOF

ap...@google.com <ap...@google.com> #8Jul 9, 2020 06:59PM

#7: What are your hardware specs? Have you tried the workaround in #6?

jb...@google.com <jb...@google.com> #9Jul 9, 2020 07:14PM

Marked as fixed.

Here's the system report:

Model Name: MacBook Pro
Model Identifier: MacBookPro11,4
Processor Name: Intel Core i7
Processor Speed: 2,2 GHz
Number of Processors: 1
Total Number of Cores: 4
L2 Cache (per Core): 256 KB
L3 Cache: 6 MB
Memory: 16 GB
Boot ROM Version: 187.0.0.0.0
SMC Version (system): 2.29f24

More about the model here ->

https://support.apple.com/kb/SP719?locale=en_US&viewlocale=en_US

my...@gmail.com <my...@gmail.com> #10Jul 23, 2020 01:27AM

Just tried fix suggested on #6, seems to be quitting without a trouble atm.

b9...@gmail.com <b9...@gmail.com> #11Jul 26, 2020 06:51PM

#10 Great! We currently cannot reproduce this problem on our machines, but in order to rule things out, would you be willing to enable the feature again (set to " = on"), but use -gpu swiftshader_indirect?

jb...@google.com <jb...@google.com> #12Jul 27, 2020 06:36PM

This is because it could be an interaction between the feature and graphics acceleration:

com.apple.iokit.IOAcceleratorFamily2(400.27)[5BC3E111-E908-36E8-9AFB-A39BD0D561D5]@0xffffff7f902aa000->0xffffff7f9034efff
dependency: com.apple.driver.AppleMobileFileIntegrity(1.0.5)[66A1BDE1-514B-3B0D-87DD-8E2B9F110A8C]@0xffffff7f8ffb9000
dependency: com.apple.iokit.IOSurface(255.1)[B153C6D6-2542-3D6F-A21F-B56D9E1349DF]@0xffffff7f90227000
dependency: com.apple.iokit.IOPCIFamily(2.9)[7DE930EC-AB73-3F5A-9D38-94D5EE90D197]@0xffffff7f8fa95000
dependency: com.apple.iokit.IOGraphicsFamily(530.12)[9D1E5FA7-267E-397E-9C91-1751221A05CF]@0xffffff7f9024b000
dependency: com.apple.iokit.IOReportFamily(47)[6A9FF3E1-E644-3F33-8A44-8B51C44AA67C]@0xffffff7f902a3000
com.apple.driver.AppleIntelHD5000Graphics(12.0.2)[D8908CD8-D54B-3FD5-B1CF-76BB24CBF2EA]@0xffffff7f917fa000->0xffffff7f91874fff
dependency: com.apple.iokit.IOSurface(255.1)[B153C6D6-2542-3D6F-A21F-B56D9E1349DF]@0xffffff7f90227000
dependency: com.apple.iokit.IOPCIFamily(2.9)[7DE930EC-AB73-3F5A-9D38-94D5EE90D197]@0xffffff7f8fa95000
dependency: com.apple.iokit.IOGraphicsFamily(530.12)[9D1E5FA7-267E-397E-9C91-1751221A05CF]@0xffffff7f9024b000
dependency: com.apple.iokit.IOAcceleratorFamily2(400.27)[5BC3E111-E908-36E8-9AFB-A39BD0D561D5]@0xffffff7f902aa000