com.fasterxml.jackson.module.kotlin.MissingKotlinParameterException in v8.1.0

[sridhar-vadlamani-ck]

We're seeing this randomly happen on the latest release.

java -jar ../ci_workspace/flank/flank.jar firebase test android run --config flank_espresso.yml
AndroidArgs
    gcloud:
      results-bucket: ***********-flank
      results-dir: null
      record-video: false
      timeout: 8m
      async: false
      results-history-name: null
      # Android gcloud
      app: /opt/workspace/scripts/app-us-prod-debug.apk
      test: /opt/workspace/scripts/app-us-prod-debug-androidTest.apk
      auto-google-login: false
      use-orchestrator: true
      directories-to-pull:

      performance-metrics: false
      test-runner-class: null
      test-targets:
        - annotation com.creditkarma.testing.ui.EspressoTest
      device:
        - model: Nexus4
          version: 21
          locale: en
          orientation: portrait
        - model: Nexus5
          version: 22
          locale: en
          orientation: portrait
        - model: Nexus7_clone_16_9
          version: 23
          locale: en
          orientation: portrait
        - model: Nexus5X
          version: 24
          locale: en
          orientation: portrait
        - model: Nexus5X
          version: 25
          locale: en
          orientation: portrait
        - model: NexusLowRes
          version: 26
          locale: en
          orientation: portrait
        - model: Nexus6P
          version: 27
          locale: en
          orientation: portrait
        - model: Pixel2
          version: 28
          locale: en
          orientation: portrait
        - model: Pixel2
          version: 29
          locale: en
          orientation: portrait
      num-flaky-test-attempts: 2

    flank:
      max-test-shards: 15
      shard-time: 100
      num-test-runs: 1
      smart-flank-gcs-path: gs://***********-android/test_timings.xml
      smart-flank-disable-upload: false
      files-to-download:

      test-targets-always-run:

      disable-sharding: false
      project: ***********
      local-result-dir: test-lab-results
      # Android Flank Yml
      keep-file-path: false
      additional-app-test-apks:

RunTests
  Uploading app-us-prod-debug-androidTest.apk .  Uploading app-us-prod-debug.apk .

com.fasterxml.jackson.module.kotlin.MissingKotlinParameterException: Instantiation of [simple type, class ftl.reports.xml.model.JUnitTestSuite] value failed for JSON property hostname due to missing (therefore NULL) value for creator parameter hostname which is a non-nullable type
 at [Source: (byte[])"<?xml version='1.0' encoding='UTF-8' ?>
<testsuites>
  <testsuite name="Pixel2-28-en-portrait" tests="29" failures="0" flakes="0" errors="0" skipped="0" time="241.681" timestamp="2020-04-22T02:16:04">
    <testcase name="testAllLoginWidgetsAreDisplayed" classname="com.creditkarma.mobile.login.ui.LoginActivityEspressoTest" time="7.721"/>
    <testcase name="testCcuDialogOpensCorrectly" classname="com.creditkarma.mobile.ploans.ui.lightbox.activation.LightboxActivationEspressoTest" time="9.552"/>
 "[truncated 84476 bytes]; line: 33, column: 3] (through reference chain: ftl.reports.xml.model.JUnitTestResult["testsuite"]->java.util.ArrayList[0]->ftl.reports.xml.model.JUnitTestSuite["hostname"])
	at com.fasterxml.jackson.module.kotlin.KotlinValueInstantiator.createFromObjectWith(KotlinValueInstantiator.kt:107)
	at com.fasterxml.jackson.databind.deser.impl.PropertyBasedCreator.build(PropertyBasedCreator.java:198)
	at com.fasterxml.jackson.databind.deser.BeanDeserializer._deserializeUsingPropertyBased(BeanDeserializer.java:488)
	at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.deserializeFromObjectUsingNonDefault(BeanDeserializerBase.java:1287)
	at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserializeFromObject(BeanDeserializer.java:326)
	at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:159)
	at com.fasterxml.jackson.dataformat.xml.deser.WrapperHandlingDeserializer.deserialize(WrapperHandlingDeserializer.java:114)
	at com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.deserialize(CollectionDeserializer.java:286)
	at com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.deserialize(CollectionDeserializer.java:245)
	at com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.deserialize(CollectionDeserializer.java:27)
	at com.fasterxml.jackson.databind.deser.SettableBeanProperty.deserialize(SettableBeanProperty.java:530)
	at com.fasterxml.jackson.databind.deser.BeanDeserializer._deserializeWithErrorWrapping(BeanDeserializer.java:528)
	at com.fasterxml.jackson.databind.deser.BeanDeserializer._deserializeUsingPropertyBased(BeanDeserializer.java:417)
	at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.deserializeFromObjectUsingNonDefault(BeanDeserializerBase.java:1287)
	at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserializeFromObject(BeanDeserializer.java:326)
	at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:159)
	at com.fasterxml.jackson.dataformat.xml.deser.WrapperHandlingDeserializer.deserialize(WrapperHandlingDeserializer.java:114)
	at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:4202)
	at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3266)
	at ftl.reports.xml.JUnitXmlKt.parseAllSuitesXml(JUnitXml.kt:50)
	at ftl.reports.xml.JUnitXmlKt.parseAllSuitesXml(JUnitXml.kt:54)
	at ftl.gc.GcStorage.downloadJunitXml(GcStorage.kt:94)
	at ftl.args.ArgsHelper.calculateShards(ArgsHelper.kt:222)
	at ftl.args.AndroidTestShard.getTestShardChunks(AndroidTestShard.kt:26)
	at ftl.run.AndroidTestRunner$runTests$2.invokeSuspend(AndroidTestRunner.kt:38)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
	at kotlinx.coroutines.ResumeModeKt.resumeUninterceptedMode(ResumeMode.kt:45)
	at kotlinx.coroutines.internal.ScopeCoroutine.afterCompletionInternal(Scopes.kt:32)
	at kotlinx.coroutines.JobSupport.completeStateFinalization(JobSupport.kt:310)
	at kotlinx.coroutines.JobSupport.tryFinalizeFinishingState(JobSupport.kt:236)
	at kotlinx.coroutines.JobSupport.tryMakeCompletingSlowPath(JobSupport.kt:849)
	at kotlinx.coroutines.JobSupport.tryMakeCompleting(JobSupport.kt:811)
	at kotlinx.coroutines.JobSupport.makeCompletingOnce$kotlinx_coroutines_core(JobSupport.kt:787)
	at kotlinx.coroutines.AbstractCoroutine.resumeWith(AbstractCoroutine.kt:111)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:46)
	at kotlinx.coroutines.DispatchedTask.run(Dispatched.kt:241)
	at kotlinx.coroutines.EventLoopImplBase.processNextEvent(EventLoop.common.kt:270)
	at kotlinx.coroutines.BlockingCoroutine.joinBlocking(Builders.kt:79)
	at kotlinx.coroutines.BuildersKt__BuildersKt.runBlocking(Builders.kt:54)
	at kotlinx.coroutines.BuildersKt.runBlocking(Unknown Source)
	at kotlinx.coroutines.BuildersKt__BuildersKt.runBlocking$default(Builders.kt:36)
	at kotlinx.coroutines.BuildersKt.runBlocking$default(Unknown Source)
	at ftl.cli.firebase.test.android.AndroidRunCommand.run(AndroidRunCommand.kt:49)
	at picocli.CommandLine.executeUserObject(CommandLine.java:1729)
	at picocli.CommandLine.access$900(CommandLine.java:145)
	at picocli.CommandLine$RunLast.handle(CommandLine.java:2101)
	at picocli.CommandLine$RunLast.handle(CommandLine.java:2068)
	at picocli.CommandLine$AbstractParseResultHandler.execute(CommandLine.java:1935)
	at picocli.CommandLine.execute(CommandLine.java:1864)
	at ftl.Main$Companion.main(Main.kt:41)
	at ftl.Main.main(Main.kt)

[bootstraponline]

This NPE is fixed on master / snapshot (per feedback from @pawelpasterz )

0d1155d#diff-f0556ef0c7b1fa5a40e7d8be03562cfb

[doodla]

That fix looks like it's different? Looks more like it fixed another case of #734

[jan-goral]

Hi @doodla. Looks like your test_timings.xml have no hostname property that was previously required to be non-null. This issue probably was fixed by f114c83#diff-8ceccb778feca8bf020e34db9a3f335dR35, which will be available in next release. You can check the latest snapshot. Be aware that #666 introduces new way to generate results directly from FTL API instead of xml parsing, which can produce slightly different xml output. To make sure that your test_timings.xml will be compatible with latest snapshot you can add option legacy-junit-result: true to your config.

[doodla]

@jan-gogo Thanks!