title: R8 throws NullPointerException from within AndroidStudio, but not from commandline via gradlew
body: <h1>Problem</h1>
  
  <p>When I click on the debug icon in Android Studio, I get this NullPointerException from R8.</p>
  
  <pre><code>Executing tasks: [:app:assembleDebug] in project /Users/gary/Developer/Foo/Foo-Android
  
  &gt; Task :app:preBuild UP-TO-DATE
  &gt; Task :app:preDebugBuild UP-TO-DATE
  &gt; Task :app:checkDebugManifest UP-TO-DATE
  &gt; Task :app:generateDebugBuildConfig UP-TO-DATE
  &gt; Task :app:compileDebugAidl NO-SOURCE
  &gt; Task :app:compileDebugRenderscript NO-SOURCE
  &gt; Task :app:mainApkListPersistenceDebug
  &gt; Task :app:generateDebugResValues
  &gt; Task :app:generateDebugResources
  &gt; Task :app:createDebugCompatibleScreenManifests
  &gt; Task :app:processDebugManifest
  &gt; Task :app:mergeDebugResources
  &gt; Task :app:processDebugResources
  &gt; Task :app:kaptGenerateStubsDebugKotlin
  
  &gt; Task :app:kaptDebugKotlin
  w: [kapt] Incremental annotation processing requested, but support is disabled because the following processors are not incremental: androidx.room.RoomProcessor (NON_INCREMENTAL).
  
  &gt; Task :app:compileDebugKotlin
  w: /Users/gary/Developer/Foo/Foo-Android/app/src/main/java/com/foo/restapis/LoggingInterceptor.kt: (38, 49): 'create(MediaType?, String): ResponseBody' is deprecated. Moved to extension function. Put the 'content' argument first to fix Java
  w: /Users/gary/Developer/Foo/Foo-Android/app/src/main/java/com/Foo/screens/player/PlayerActivity.kt: (132, 33): 'getRunningServices(Int): (Mutable)List&lt;ActivityManager.RunningServiceInfo!&gt;!' is deprecated. Deprecated in Java
  w: /Users/gary/Developer/Foo/Foo-Android/app/src/main/java/com/foo/service/KKAudioPlayer.kt: (205, 35): 'setNotificationListener(PlayerNotificationManager.NotificationListener!): Unit' is deprecated. Deprecated in Java
  w: /Users/gary/Developer/Foo/Foo-Android/app/src/main/java/com/foo/service/KKAudioPlayer.kt: (283, 32): 'ExtractorMediaSource' is deprecated. Deprecated in Java
  w: /Users/gary/Developer/Foo/Foo-Android/app/src/main/java/com/foo/service/KKAudioPlayer.kt: (283, 53): 'Factory' is deprecated. Deprecated in Java
  w: /Users/gary/Developer/Foo/Foo-Android/app/src/main/java/com/foo/service/KKAudioPlayer.kt: (293, 17): 'ExtractorMediaSource' is deprecated. Deprecated in Java
  w: /Users/gary/Developer/Foo/Foo-Android/app/src/main/java/com/foo/service/KKAudioPlayer.kt: (293, 38): 'Factory' is deprecated. Deprecated in Java
  w: /Users/gary/Developer/Foo/Foo-Android/app/src/main/java/com/foo/service/KKAudioPlayer.kt: (295, 21): 'ExtractorMediaSource' is deprecated. Deprecated in Java
  w: /Users/gary/Developer/Foo/Foo-Android/app/src/main/java/com/foo/service/KKAudioPlayer.kt: (295, 42): 'Factory' is deprecated. Deprecated in Java
  
  &gt; Task :app:mergeDebugShaders
  &gt; Task :app:compileDebugShaders
  &gt; Task :app:generateDebugAssets
  &gt; Task :app:mergeDebugAssets
  &gt; Task :app:javaPreCompileDebug
  &gt; Task :app:compileDebugJavaWithJavac
  &gt; Task :app:compileDebugSources
  &gt; Task :app:processDebugJavaRes NO-SOURCE
  &gt; Task :app:validateSigningDebug
  &gt; Task :app:checkDebugDuplicateClasses
  &gt; Task :app:transformClassesWithProfilers-transformForDebug
  &gt; Task :app:mergeDebugJavaResource
  
  &gt; Task :app:transformClassesWithDexBuilderForDebug FAILED
  org.gradle.workers.WorkerExecutionException: There was a failure while executing work items
      at org.gradle.workers.internal.DefaultWorkerExecutor.workerExecutionException(DefaultWorkerExecutor.java:158)
      at org.gradle.workers.internal.DefaultWorkerExecutor.await(DefaultWorkerExecutor.java:152)
      at com.android.build.gradle.internal.transforms.DexArchiveBuilderTransform.transform(DexArchiveBuilderTransform.java:424)
      at com.android.build.gradle.internal.pipeline.TransformTask$2.call(TransformTask.java:239)
      at com.android.build.gradle.internal.pipeline.TransformTask$2.call(TransformTask.java:235)
      at com.android.builder.profile.ThreadRecorder.record(ThreadRecorder.java:106)
      at com.android.build.gradle.internal.pipeline.TransformTask.transform(TransformTask.java:230)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:498)
      at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:103)
      at org.gradle.api.internal.project.taskfactory.IncrementalTaskInputsTaskAction.doExecute(IncrementalTaskInputsTaskAction.java:46)
      at org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:41)
      at org.gradle.api.internal.project.taskfactory.AbstractIncrementalTaskAction.execute(AbstractIncrementalTaskAction.java:25)
      at org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:28)
      at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$5.run(ExecuteActionsTaskExecuter.java:404)
      at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:402)
      at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:394)
      at org.gradle.internal.operations.DefaultBuildOperationExecutor$1.execute(DefaultBuildOperationExecutor.java:165)
      at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:250)
      at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:158)
      at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:92)
      at org.gradle.internal.operations.DelegatingBuildOperationExecutor.run(DelegatingBuildOperationExecutor.java:31)
      at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:393)
      at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:376)
      at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.access$200(ExecuteActionsTaskExecuter.java:80)
      at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$TaskExecution.execute(ExecuteActionsTaskExecuter.java:213)
      at org.gradle.internal.execution.steps.ExecuteStep.lambda$execute$0(ExecuteStep.java:32)
      at java.util.Optional.map(Optional.java:215)
      at org.gradle.internal.execution.steps.ExecuteStep.execute(ExecuteStep.java:32)
      at org.gradle.internal.execution.steps.ExecuteStep.execute(ExecuteStep.java:26)
      at org.gradle.internal.execution.steps.CleanupOutputsStep.execute(CleanupOutputsStep.java:58)
      at org.gradle.internal.execution.steps.CleanupOutputsStep.execute(CleanupOutputsStep.java:35)
      at org.gradle.internal.execution.steps.ResolveInputChangesStep.execute(ResolveInputChangesStep.java:48)
      at org.gradle.internal.execution.steps.ResolveInputChangesStep.execute(ResolveInputChangesStep.java:33)
      at org.gradle.internal.execution.steps.CancelExecutionStep.execute(CancelExecutionStep.java:39)
      at org.gradle.internal.execution.steps.TimeoutStep.executeWithoutTimeout(TimeoutStep.java:73)
      at org.gradle.internal.execution.steps.TimeoutStep.execute(TimeoutStep.java:54)
      at org.gradle.internal.execution.steps.CatchExceptionStep.execute(CatchExceptionStep.java:35)
      at org.gradle.internal.execution.steps.CreateOutputsStep.execute(CreateOutputsStep.java:51)
      at org.gradle.internal.execution.steps.SnapshotOutputsStep.execute(SnapshotOutputsStep.java:45)
      at org.gradle.internal.execution.steps.SnapshotOutputsStep.execute(SnapshotOutputsStep.java:31)
      at org.gradle.internal.execution.steps.CacheStep.executeWithoutCache(CacheStep.java:201)
      at org.gradle.internal.execution.steps.CacheStep.execute(CacheStep.java:70)
      at org.gradle.internal.execution.steps.CacheStep.execute(CacheStep.java:45)
      at org.gradle.internal.execution.steps.BroadcastChangingOutputsStep.execute(BroadcastChangingOutputsStep.java:49)
      at org.gradle.internal.execution.steps.StoreSnapshotsStep.execute(StoreSnapshotsStep.java:43)
      at org.gradle.internal.execution.steps.StoreSnapshotsStep.execute(StoreSnapshotsStep.java:32)
      at org.gradle.internal.execution.steps.RecordOutputsStep.execute(RecordOutputsStep.java:38)
      at org.gradle.internal.execution.steps.RecordOutputsStep.execute(RecordOutputsStep.java:24)
      at org.gradle.internal.execution.steps.SkipUpToDateStep.executeBecause(SkipUpToDateStep.java:96)
      at org.gradle.internal.execution.steps.SkipUpToDateStep.lambda$execute$0(SkipUpToDateStep.java:89)
      at java.util.Optional.map(Optional.java:215)
      at org.gradle.internal.execution.steps.SkipUpToDateStep.execute(SkipUpToDateStep.java:54)
      at org.gradle.internal.execution.steps.SkipUpToDateStep.execute(SkipUpToDateStep.java:38)
      at org.gradle.internal.execution.steps.ResolveChangesStep.execute(ResolveChangesStep.java:77)
      at org.gradle.internal.execution.steps.ResolveChangesStep.execute(ResolveChangesStep.java:37)
      at org.gradle.internal.execution.steps.legacy.MarkSnapshottingInputsFinishedStep.execute(MarkSnapshottingInputsFinishedStep.java:36)
      at org.gradle.internal.execution.steps.legacy.MarkSnapshottingInputsFinishedStep.execute(MarkSnapshottingInputsFinishedStep.java:26)
      at org.gradle.internal.execution.steps.ResolveCachingStateStep.execute(ResolveCachingStateStep.java:90)
      at org.gradle.internal.execution.steps.ResolveCachingStateStep.execute(ResolveCachingStateStep.java:48)
      at org.gradle.internal.execution.impl.DefaultWorkExecutor.execute(DefaultWorkExecutor.java:33)
      at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:120)
      at org.gradle.api.internal.tasks.execution.ResolveBeforeExecutionStateTaskExecuter.execute(ResolveBeforeExecutionStateTaskExecuter.java:75)
      at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:62)
      at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:108)
      at org.gradle.api.internal.tasks.execution.ResolveBeforeExecutionOutputsTaskExecuter.execute(ResolveBeforeExecutionOutputsTaskExecuter.java:67)
      at org.gradle.api.internal.tasks.execution.ResolveAfterPreviousExecutionStateTaskExecuter.execute(ResolveAfterPreviousExecutionStateTaskExecuter.java:46)
      at org.gradle.api.internal.tasks.execution.CleanupStaleOutputsExecuter.execute(CleanupStaleOutputsExecuter.java:94)
      at org.gradle.api.internal.tasks.execution.FinalizePropertiesTaskExecuter.execute(FinalizePropertiesTaskExecuter.java:46)
      at org.gradle.api.internal.tasks.execution.ResolveTaskExecutionModeExecuter.execute(ResolveTaskExecutionModeExecuter.java:95)
      at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:57)
      at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:56)
      at org.gradle.api.internal.tasks.execution.CatchExceptionTaskExecuter.execute(CatchExceptionTaskExecuter.java:36)
      at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.executeTask(EventFiringTaskExecuter.java:73)
      at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.call(EventFiringTaskExecuter.java:52)
      at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.call(EventFiringTaskExecuter.java:49)
      at org.gradle.internal.operations.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:416)
      at org.gradle.internal.operations.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:406)
      at org.gradle.internal.operations.DefaultBuildOperationExecutor$1.execute(DefaultBuildOperationExecutor.java:165)
      at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:250)
      at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:158)
      at org.gradle.internal.operations.DefaultBuildOperationExecutor.call(DefaultBuildOperationExecutor.java:102)
      at org.gradle.internal.operations.DelegatingBuildOperationExecutor.call(DelegatingBuildOperationExecutor.java:36)
      at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter.execute(EventFiringTaskExecuter.java:49)
      at org.gradle.execution.plan.LocalTaskNodeExecutor.execute(LocalTaskNodeExecutor.java:43)
      at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$InvokeNodeExecutorsAction.execute(DefaultTaskExecutionGraph.java:355)
      at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$InvokeNodeExecutorsAction.execute(DefaultTaskExecutionGraph.java:343)
      at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareExecutionAction.execute(DefaultTaskExecutionGraph.java:336)
      at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareExecutionAction.execute(DefaultTaskExecutionGraph.java:322)
      at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker$1.execute(DefaultPlanExecutor.java:134)
      at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker$1.execute(DefaultPlanExecutor.java:129)
      at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.execute(DefaultPlanExecutor.java:202)
      at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.executeNextNode(DefaultPlanExecutor.java:193)
      at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.run(DefaultPlanExecutor.java:129)
      at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
      at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:46)
      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
      at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)
      at java.lang.Thread.run(Thread.java:748)
  Caused by: org.gradle.workers.internal.DefaultWorkerExecutor$WorkExecutionException: A failure occurred while executing com.android.build.gradle.internal.transforms.DexArchiveBuilderTransform$DexConversionWorkAction
      at org.gradle.workers.internal.DefaultWorkerExecutor$WorkerExecution.waitForCompletion(DefaultWorkerExecutor.java:285)
      at org.gradle.internal.work.DefaultAsyncWorkTracker.waitForItemsAndGatherFailures(DefaultAsyncWorkTracker.java:115)
      at org.gradle.internal.work.DefaultAsyncWorkTracker.waitForCompletion(DefaultAsyncWorkTracker.java:87)
      at org.gradle.workers.internal.DefaultWorkerExecutor.await(DefaultWorkerExecutor.java:150)
      ... 100 more
  Caused by: org.gradle.tooling.BuildException: Failed to process /Users/gary/Developer/Foo/Foo-Android/app/build/intermediates/transforms/profilers-transform/debug/29.jar
      at com.android.build.gradle.internal.transforms.DexArchiveBuilderTransform$DexConversionWorkAction.run(DexArchiveBuilderTransform.java:705)
      at org.gradle.workers.internal.DefaultWorkerServer.execute(DefaultWorkerServer.java:39)
      at org.gradle.workers.internal.NoIsolationWorkerFactory$1$1.execute(NoIsolationWorkerFactory.java:61)
      at org.gradle.workers.internal.AbstractWorker$1.call(AbstractWorker.java:44)
      at org.gradle.workers.internal.AbstractWorker$1.call(AbstractWorker.java:41)
      at org.gradle.internal.operations.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:416)
      at org.gradle.internal.operations.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:406)
      at org.gradle.internal.operations.DefaultBuildOperationExecutor$1.execute(DefaultBuildOperationExecutor.java:165)
      at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:250)
      at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:158)
      at org.gradle.internal.operations.DefaultBuildOperationExecutor.call(DefaultBuildOperationExecutor.java:102)
      at org.gradle.internal.operations.DelegatingBuildOperationExecutor.call(DelegatingBuildOperationExecutor.java:36)
      at org.gradle.workers.internal.AbstractWorker.executeWrappedInBuildOperation(AbstractWorker.java:41)
      at org.gradle.workers.internal.NoIsolationWorkerFactory$1.execute(NoIsolationWorkerFactory.java:55)
      at org.gradle.workers.internal.DefaultWorkerExecutor$1.call(DefaultWorkerExecutor.java:105)
      at org.gradle.workers.internal.DefaultWorkerExecutor$1.call(DefaultWorkerExecutor.java:99)
      at java.util.concurrent.FutureTask.run(FutureTask.java:266)
      at org.gradle.internal.work.DefaultConditionalExecutionQueue$ExecutionRunner.runExecution(DefaultConditionalExecutionQueue.java:215)
      at org.gradle.internal.work.DefaultConditionalExecutionQueue$ExecutionRunner.runBatch(DefaultConditionalExecutionQueue.java:164)
      at org.gradle.internal.work.DefaultConditionalExecutionQueue$ExecutionRunner.run(DefaultConditionalExecutionQueue.java:131)
      at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
      at java.util.concurrent.FutureTask.run(FutureTask.java:266)
      ... 6 more
  Caused by: com.android.builder.dexing.DexArchiveBuilderException: Failed to process /Users/gary/Developer/Foo/Foo-Android/app/build/intermediates/transforms/profilers-transform/debug/29.jar
      at com.android.build.gradle.internal.transforms.DexArchiveBuilderTransform.launchProcessing(DexArchiveBuilderTransform.java:910)
      at com.android.build.gradle.internal.transforms.DexArchiveBuilderTransform.access$600(DexArchiveBuilderTransform.java:114)
      at com.android.build.gradle.internal.transforms.DexArchiveBuilderTransform$DexConversionWorkAction.run(DexArchiveBuilderTransform.java:697)
      ... 27 more
  Caused by: com.android.builder.dexing.DexArchiveBuilderException: Error while dexing.
      at com.android.builder.dexing.D8DexArchiveBuilder.getExceptionToRethrow(D8DexArchiveBuilder.java:124)
      at com.android.builder.dexing.D8DexArchiveBuilder.convert(D8DexArchiveBuilder.java:101)
      at com.android.build.gradle.internal.transforms.DexArchiveBuilderTransform.launchProcessing(DexArchiveBuilderTransform.java:905)
      ... 29 more
  Caused by: java.lang.NullPointerException
      at com.android.tools.r8.ir.conversion.N.b(:988)
      at com.android.tools.r8.ir.conversion.N.buildPrelude(:149)
      at com.android.tools.r8.ir.conversion.IRBuilder.a(:51)
      at com.android.tools.r8.graph.JarCode.a(:16)
      at com.android.tools.r8.graph.JarCode.b(:69)
      at com.android.tools.r8.graph.JarCode.buildIR(:1)
      at com.android.tools.r8.graph.DexEncodedMethod.buildIR(:2)
      at com.android.tools.r8.ir.conversion.IRConverter.b(:215)
      at com.android.tools.r8.ir.conversion.IRConverter.b(:37)
      at com.android.tools.r8.ir.conversion.IRConverter.a(:49)
      at com.android.tools.r8.graph.DexClass.forEachMethod(:2)
      at com.android.tools.r8.ir.conversion.IRConverter.b(:28)
      at com.android.tools.r8.ir.conversion.IRConverter.d(:8)
      at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
      at com.google.common.util.concurrent.TrustedListenableFutureTask$TrustedFutureInterruptibleTask.runInterruptibly(TrustedListenableFutureTask.java:125)
      at com.google.common.util.concurrent.InterruptibleTask.run(InterruptibleTask.java:57)
      at com.google.common.util.concurrent.TrustedListenableFutureTask.run(TrustedListenableFutureTask.java:78)
      at com.google.common.util.concurrent.MoreExecutors$DirectExecutorService.execute(MoreExecutors.java:261)
      at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:112)
      at com.google.common.util.concurrent.AbstractListeningExecutorService.submit(AbstractListeningExecutorService.java:56)
      at com.google.common.util.concurrent.AbstractListeningExecutorService.submit(AbstractListeningExecutorService.java:36)
      at com.android.tools.r8.ir.conversion.IRConverter.a(:44)
      at com.android.tools.r8.ir.conversion.IRConverter.a(:9)
      at com.android.tools.r8.D8.a(:33)
      at com.android.tools.r8.D8.d(:8)
      at com.android.tools.r8.D8.b(:1)
      at com.android.tools.r8.utils.t.a(:23)
      at com.android.tools.r8.D8.run(:11)
      at com.android.builder.dexing.D8DexArchiveBuilder.convert(D8DexArchiveBuilder.java:99)
      ... 30 more
      Suppressed: java.util.concurrent.ExecutionException: java.lang.NullPointerException
          at com.google.common.util.concurrent.AbstractFuture.getDoneValue(AbstractFuture.java:552)
          at com.google.common.util.concurrent.AbstractFuture.get(AbstractFuture.java:513)
          at com.google.common.util.concurrent.FluentFuture$TrustedFuture.get(FluentFuture.java:82)
          at com.android.tools.r8.utils.ThreadUtils.a(:4)
          at com.android.tools.r8.ir.conversion.IRConverter.a(:46)
          ... 37 more
      [CIRCULAR REFERENCE:java.lang.NullPointerException]
  
  
  FAILURE: Build failed with an exception.
  
  * What went wrong:
  Execution failed for task ':app:transformClassesWithDexBuilderForDebug'.
  &gt; There was a failure while executing work items
     &gt; A failure occurred while executing com.android.build.gradle.internal.transforms.DexArchiveBuilderTransform$DexConversionWorkAction
        &gt; Failed to process /Users/gary/Developer/Foo/Foo-Android/app/build/intermediates/transforms/profilers-transform/debug/29.jar
  
  * Try:
  Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
  
  * Get more help at https://help.gradle.org
  
  BUILD FAILED in 45s
  21 actionable tasks: 19 executed, 2 up-to-date
  </code></pre>
  
  <h1>But...</h1>
  
  <p>When I try to investigate further by running <code>gradlew</code> from the command line, there are no reported errors. </p>
  
  <pre><code>./gradlew :app:assembleDebug
  
  Deprecated Gradle features were used in this build, making it incompatible with Gradle 6.0.
  Use '--warning-mode all' to show the individual deprecation warnings.
  See https://docs.gradle.org/5.4.1/userguide/command_line_interface.html#sec:command_line_warnings
  
  BUILD SUCCESSFUL in 16s
  29 actionable tasks: 12 executed, 17 up-to-date
  </code></pre>
  
  <p>So I'm at a loss for how to proceed.  This is a commercial media app that had passed beta testing and was supposed to be released... but now this has me stymied.</p>
  
  <p>Things I've tried so far...</p>
  
  <ol>
  <li>clean and rebuild</li>
  <li>File -> Invalidate Caches &amp; Restart</li>
  <li>Wiping project .gradle and user/.gradle caches, clean and rebuild</li>
  <li>enableMultiDex = true in the gradle.config</li>
  <li>Increasing JVM memory from 2MB to 4MB</li>
  <li>Rebooting the computer</li>
  </ol>
  
  <h1>Questions</h1>
  
  <ol>
  <li>How to resolve this exception and get un-stuck? </li>
  <li>Is it my code or an R8 bug?</li>
  <li>Why can't I reproduce the error from the command line?</li>
  <li>Is Android Studio running gradle with extra flags its not reporting?</li>
  </ol>
  
  <h1>Version Information</h1>
  
  <p>(everything should be up-to-date when filed in stack overflow)</p>
  
  <ul>
  <li>Android Studio 3.5 </li>
  <li>Gradle 5.4.1 </li>
  <li>Android Studio Gradle Plugin 3.5.0</li>
  <li>Java 1.8 </li>
  <li>Build Tools 28.0.3</li>
  </ul>
  
  <p>build.gradle = </p>
  
  <pre><code>apply plugin: 'com.android.application'
  
  apply plugin: 'kotlin-android'
  
  apply plugin: 'kotlin-android-extensions'
  apply plugin: 'kotlin-kapt'
  
  
  android {
      compileSdkVersion 28
      defaultConfig {
          applicationId "com.foo"
          minSdkVersion 25
          targetSdkVersion 28
          versionCode 16
          versionName "1.0.1"
          testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
          javaCompileOptions {
              annotationProcessorOptions {
                  arguments = ["room.schemaLocation": "$projectDir/schemas".toString()]
              }
          }
      }
  
      buildTypes {
          debug {
              buildConfigField "String", 'AUTH_URL', "\"https://debug.foo.com/oauth/\""
              buildConfigField "String", 'BASE_URL', "\"https://debug.foo.com/api/v1/\""
          }
          staging {
              buildConfigField "String", 'AUTH_URL', "\"https://staging.foo.com/oauth/\""
              buildConfigField "String", 'BASE_URL', "\"https://staging.foo.com/api/v1/\""
          }
          release {
              buildConfigField "String", 'AUTH_URL', "\"https://api.foo.com/oauth/\""
              buildConfigField "String", 'BASE_URL', "\"https://api.foo.com/api/v1/\""
  
              // enables code shrinking, obfuscation, and optimization
              minifyEnabled true
  
              // enables resource shrinking
              shrinkResources true
  
              proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
          }
      }
      compileOptions {
          sourceCompatibility JavaVersion.VERSION_1_8
          targetCompatibility JavaVersion.VERSION_1_8
      }
      androidExtensions {
          experimental = true
      }
      lintOptions {
          disable 'RestrictedApi'
      }
      kotlinOptions {
          jvmTarget = '1.8'
      }
      kapt {
          useBuildCache = true
      }
      packagingOptions {
          exclude 'META-INF/atomicfu.kotlin_module'
      }
      buildToolsVersion = '28.0.3'
  }
  
  dependencies {
      implementation fileTree(dir: 'libs', include: ['*.jar'])
      implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.3.50"
      implementation "org.jetbrains.kotlin:kotlin-reflect:1.3.50"
      implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-core:1.3.0'
  
      implementation "android.arch.lifecycle:extensions:1.1.1"
      kapt "android.arch.lifecycle:common-java8:1.1.1"
  
      implementation "android.arch.persistence.room:runtime:1.1.1"
      kapt "android.arch.persistence.room:compiler:1.1.1"
      implementation "android.arch.persistence.room:rxjava2:1.1.1"
      testImplementation "android.arch.persistence.room:testing:1.1.1"
  
      implementation 'com.google.android.exoplayer:exoplayer-core:2.10.1'
      implementation 'com.google.android.exoplayer:exoplayer-ui:2.10.1'
  
      implementation "androidx.appcompat:appcompat:1.1.0"
      implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
      implementation "androidx.preference:preference:1.1.0"
  
      // retrofit
      implementation 'com.squareup.retrofit2:retrofit:2.6.1'
      implementation 'com.squareup.retrofit2:converter-moshi:2.6.1'
      implementation 'com.squareup.retrofit2:adapter-rxjava2:2.6.1'
  
      // rxjava
      implementation "io.reactivex.rxjava2:rxjava:2.2.10"
      implementation "io.reactivex.rxjava2:rxandroid:2.1.1"
  
      implementation 'cz.ackee.rxoauth2:core:2.1.1'
      implementation 'cz.ackee.rxoauth2:retrofit-adapter:2.1.1'
  
  
      implementation 'com.squareup.picasso:picasso:2.71828'
  
      implementation 'com.google.android.material:material:1.0.0'
  
      implementation 'com.beust:klaxon:5.0.1'
  
      // test
  
      testRuntimeOnly "org.junit.jupiter:junit-jupiter-engine:5.5.1"
  
      testImplementation "androidx.test:runner:1.2.0"
      testImplementation 'org.assertj:assertj-core:3.13.2'
      testImplementation "org.junit.jupiter:junit-jupiter-api:5.5.1"
      testImplementation "org.junit.jupiter:junit-jupiter-params:5.5.1"
      testImplementation "io.mockk:mockk:1.9.3"
      testImplementation "com.github.andrzejchm.RESTMock:android:0.4.0"
  
      androidTestImplementation "androidx.test:runner:1.2.0"
      androidTestImplementation "androidx.test.espresso:espresso-core:3.2.0"
  }
  </code></pre>
  
  <p>gradle.properties = </p>
  
  <pre><code>org.gradle.jvmargs=-Xmx4096m
  kotlin.code.style=official
  
  # migrate to androidX
  android.useAndroidX=true
  android.enableJetifier=true
  </code></pre>