NullPointerException in org.gradle.api.internal.tasks.compile.incremental.jar.JarSnapshot.getHashes

[Moe]

I’m currently using two different Jenkins jobs for compiling my sources (gradle assemble) and running the unit tests (gradle test). For those tasks, I have to use different GRADLE_USER_HOME directories. The first time I run the unit test job after the compile job (when it creates its GRADLE_USER_HOME directory) I get the following exception:

* What went wrong:
Execution failed for task ':api:compileJava'.
> java.lang.NullPointerException (no error message)

* Try:
Run with --info or --debug option to get more log output.

* Exception is:
org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':api:compileJava'.
	at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:69)
	at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:46)
	at org.gradle.api.internal.tasks.execution.PostExecutionAnalysisTaskExecuter.execute(PostExecutionAnalysisTaskExecuter.java:35)
	at org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExecuter.java:64)
	at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:58)
	at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:42)
	at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:52)
	at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:53)
	at org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter.execute(ExecuteAtMostOnceTaskExecuter.java:43)
	at org.gradle.api.internal.AbstractTask.executeWithoutThrowingTaskFailure(AbstractTask.java:310)
	at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.executeTask(AbstractTaskPlanExecutor.java:79)
	at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.processTask(AbstractTaskPlanExecutor.java:63)
	at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.run(AbstractTaskPlanExecutor.java:51)
	at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54)
	at org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40)
Caused by: java.lang.NullPointerException
	at org.gradle.api.internal.tasks.compile.incremental.jar.JarSnapshot.getHashes(JarSnapshot.java:82)
	at org.gradle.api.internal.tasks.compile.incremental.jar.JarSnapshot.getAllClasses(JarSnapshot.java:36)
	at org.gradle.api.internal.tasks.compile.incremental.jar.JarChangeDependentsFinder.getActualDependents(JarChangeDependentsFinder.java:55)
	at org.gradle.api.internal.tasks.compile.incremental.jar.JarChangeProcessor.processChange(JarChangeProcessor.java:39)
	at org.gradle.api.internal.tasks.compile.incremental.RecompilationSpecProvider$InputChangeAction.execute(RecompilationSpecProvider.java:74)
	at org.gradle.api.internal.tasks.compile.incremental.RecompilationSpecProvider$InputChangeAction.execute(RecompilationSpecProvider.java:55)
	at org.gradle.api.internal.changedetection.changes.ChangesOnlyIncrementalTaskInputs.doRemoved(ChangesOnlyIncrementalTaskInputs.java:56)
	at org.gradle.api.internal.changedetection.changes.StatefulIncrementalTaskInputs.removed(StatefulIncrementalTaskInputs.java:53)
	at org.gradle.api.internal.changedetection.changes.ChangesOnlyIncrementalTaskInputs.removed(ChangesOnlyIncrementalTaskInputs.java:28)
	at org.gradle.api.internal.tasks.compile.incremental.RecompilationSpecProvider.provideRecompilationSpec(RecompilationSpecProvider.java:51)
	at org.gradle.api.internal.tasks.compile.incremental.SelectiveCompiler.execute(SelectiveCompiler.java:53)
	at org.gradle.api.internal.tasks.compile.incremental.SelectiveCompiler.execute(SelectiveCompiler.java:31)
	at org.gradle.api.internal.tasks.compile.incremental.IncrementalCompilationFinalizer.execute(IncrementalCompilationFinalizer.java:38)
	at org.gradle.api.internal.tasks.compile.incremental.IncrementalCompilationFinalizer.execute(IncrementalCompilationFinalizer.java:24)
	at org.gradle.api.tasks.compile.JavaCompile.performCompilation(JavaCompile.java:157)
	at org.gradle.api.tasks.compile.JavaCompile.compile(JavaCompile.java:125)
	at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:75)
	at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$IncrementalTaskAction.doExecute(AnnotationProcessingTaskFactory.java:243)
	at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.execute(AnnotationProcessingTaskFactory.java:219)
	at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$IncrementalTaskAction.execute(AnnotationProcessingTaskFactory.java:230)
	at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.execute(AnnotationProcessingTaskFactory.java:208)
	at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:80)
	at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:61)
	... 14 more

On subsequent runs (GRADLE_USER_HOME already exists before gradle test is run), this exception does not occur anymore. As you can see from the stacktrace, I’m using incremental compilation. I’m also using --parallel and --configure-on-demand.

[Amit_Portnoy]

same here:

13:16:56.828 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:69)
13:16:56.828 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:46)
13:16:56.829 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.tasks.execution.PostExecutionAnalysisTaskExecuter.execute(PostExecutionAnalysisTaskExecuter.java:35)
13:16:56.829 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExecuter.java:64)
13:16:56.829 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:58)
13:16:56.829 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:42)
13:16:56.830 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:52)
13:16:56.830 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:53)
13:16:56.830 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter.execute(ExecuteAtMostOnceTaskExecuter.java:43)
13:16:56.830 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.AbstractTask.executeWithoutThrowingTaskFailure(AbstractTask.java:306)
13:16:56.830 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.executeTask(AbstractTaskPlanExecutor.java:79)
13:16:56.830 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.processTask(AbstractTaskPlanExecutor.java:63)
13:16:56.832 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.run(AbstractTaskPlanExecutor.java:51)
13:16:56.832 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor.process(DefaultTaskPlanExecutor.java:23)
13:16:56.833 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter.execute(DefaultTaskGraphExecuter.java:88)
13:16:56.833 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.execution.SelectedTaskExecutionAction.execute(SelectedTaskExecutionAction.java:29)
13:16:56.833 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:62)
13:16:56.833 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.execution.DefaultBuildExecuter.access$200(DefaultBuildExecuter.java:23)
13:16:56.833 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.execution.DefaultBuildExecuter$2.proceed(DefaultBuildExecuter.java:68)
13:16:56.833 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.execution.DryRunBuildExecutionAction.execute(DryRunBuildExecutionAction.java:32)
13:16:56.834 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:62)
13:16:56.834 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:55)
13:16:56.834 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.initialization.DefaultGradleLauncher.doBuildStages(DefaultGradleLauncher.java:149)
13:16:56.834 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.initialization.DefaultGradleLauncher.doBuild(DefaultGradleLauncher.java:106)
13:16:56.834 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.initialization.DefaultGradleLauncher.run(DefaultGradleLauncher.java:86)
13:16:56.835 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.launcher.exec.InProcessBuildActionExecuter$DefaultBuildController.run(InProcessBuildActionExecuter.java:80)
13:16:56.835 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.launcher.cli.ExecuteBuildAction.run(ExecuteBuildAction.java:33)
13:16:56.835 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.launcher.cli.ExecuteBuildAction.run(ExecuteBuildAction.java:24)
13:16:56.836 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:36)
13:16:56.838 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:26)
13:16:56.838 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.launcher.daemon.server.exec.ExecuteBuild.doBuild(ExecuteBuild.java:48)
13:16:56.838 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
13:16:56.838 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
13:16:56.839 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.launcher.daemon.server.exec.WatchForDisconnection.execute(WatchForDisconnection.java:37)
13:16:56.839 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
13:16:56.839 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.launcher.daemon.server.exec.ResetDeprecationLogger.execute(ResetDeprecationLogger.java:26)
13:16:56.844 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
13:16:56.845 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.launcher.daemon.server.exec.RequestStopIfSingleUsedDaemon.execute(RequestStopIfSingleUsedDaemon.java:34)
13:16:56.845 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
13:16:56.845 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:74)
13:16:56.845 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:72)
13:16:56.846 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.util.Swapper.swap(Swapper.java:38)
13:16:56.846 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.launcher.daemon.server.exec.ForwardClientInput.execute(ForwardClientInput.java:72)
13:16:56.846 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
13:16:56.846 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.launcher.daemon.server.health.DaemonHealthTracker.execute(DaemonHealthTracker.java:47)
13:16:56.846 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
13:16:56.846 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.launcher.daemon.server.exec.LogToClient.doBuild(LogToClient.java:60)
13:16:56.846 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
13:16:56.846 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
13:16:56.847 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.launcher.daemon.server.exec.EstablishBuildEnvironment.doBuild(EstablishBuildEnvironment.java:71)
13:16:56.847 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
13:16:56.847 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
13:16:56.847 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.launcher.daemon.server.health.HintGCAfterBuild.execute(HintGCAfterBuild.java:41)
13:16:56.847 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
13:16:56.847 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.launcher.daemon.server.exec.StartBuildOrRespondWithBusy$1.run(StartBuildOrRespondWithBusy.java:50)
13:16:56.847 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.launcher.daemon.server.DaemonStateCoordinator$1.run(DaemonStateCoordinator.java:246)
13:16:56.847 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.internal.concurrent.DefaultExecutorFactory$StoppableExecutorImpl$1.run(DefaultExecutorFactory.java:64)
13:16:56.847 [ERROR] [org.gradle.BuildExceptionReporter] Caused by: java.lang.NullPointerException
13:16:56.847 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.tasks.compile.incremental.jar.JarSnapshot.getHashes(JarSnapshot.java:82)
13:16:56.847 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.tasks.compile.incremental.jar.JarSnapshot.affectedSince(JarSnapshot.java:54)
13:16:56.848 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.tasks.compile.incremental.jar.JarSnapshot.getAffectedClassesSince(JarSnapshot.java:47)
13:16:56.848 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.tasks.compile.incremental.jar.JarChangeDependentsFinder.getActualDependents(JarChangeDependentsFinder.java:65)
13:16:56.848 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.tasks.compile.incremental.jar.JarChangeProcessor.processChange(JarChangeProcessor.java:39)
13:16:56.848 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.tasks.compile.incremental.RecompilationSpecProvider$InputChangeAction.execute(RecompilationSpecProvider.java:74)
13:16:56.848 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.tasks.compile.incremental.RecompilationSpecProvider$InputChangeAction.execute(RecompilationSpecProvider.java:55)
13:16:56.848 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.changedetection.changes.ChangesOnlyIncrementalTaskInputs.doOutOfDate(ChangesOnlyIncrementalTaskInputs.java:48)
13:16:56.848 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.changedetection.changes.StatefulIncrementalTaskInputs.outOfDate(StatefulIncrementalTaskInputs.java:40)
13:16:56.848 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.changedetection.changes.ChangesOnlyIncrementalTaskInputs.outOfDate(ChangesOnlyIncrementalTaskInputs.java:28)
13:16:56.848 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.tasks.compile.incremental.RecompilationSpecProvider.provideRecompilationSpec(RecompilationSpecProvider.java:46)
13:16:56.848 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.tasks.compile.incremental.SelectiveCompiler.execute(SelectiveCompiler.java:53)
13:16:56.848 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.tasks.compile.incremental.SelectiveCompiler.execute(SelectiveCompiler.java:31)
13:16:56.849 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.tasks.compile.incremental.IncrementalCompilationFinalizer.execute(IncrementalCompilationFinalizer.java:38)
13:16:56.849 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.tasks.compile.incremental.IncrementalCompilationFinalizer.execute(IncrementalCompilationFinalizer.java:24)
13:16:56.849 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.tasks.compile.JavaCompile.performCompilation(JavaCompile.java:156)
13:16:56.849 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.tasks.compile.JavaCompile.compile(JavaCompile.java:124)
13:16:56.849 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:63)
13:16:56.849 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$IncrementalTaskAction.doExecute(AnnotationProcessingTaskFactory.java:235)
13:16:56.849 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.execute(AnnotationProcessingTaskFactory.java:211)
13:16:56.850 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$IncrementalTaskAction.execute(AnnotationProcessingTaskFactory.java:222)
13:16:56.851 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.execute(AnnotationProcessingTaskFactory.java:200)
13:16:56.851 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:80)
13:16:56.851 [ERROR] [org.gradle.BuildExceptionReporter] 	at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:61)
13:16:56.851 [ERROR] [org.gradle.BuildExceptionReporter] 	... 56 more
13:16:56.851 [ERROR] [org.gradle.BuildExceptionReporter]

[baitouwei]

same here.

FAILURE: Build failed with an exception.

• What went wrong:
  Failed to notify task execution listener.

java.lang.NullPointerException (no error message)
java.lang.NullPointerException (no error message)
java.lang.NullPointerException (no error message)
java.lang.NullPointerException (no error message)

• Try:
  Run with --info or --debug option to get more log output.

• Exception is:
  org.gradle.internal.event.ListenerNotificationException: Failed to notify task execution listener.
  at org.gradle.internal.event.BroadcastDispatch.dispatch(BroadcastDispatch.java:98)
  at org.gradle.internal.event.BroadcastDispatch.dispatch(BroadcastDispatch.java:31)
  at org.gradle.internal.event.BroadcastDispatch.dispatch(BroadcastDispatch.java:87)
  at org.gradle.internal.event.BroadcastDispatch.dispatch(BroadcastDispatch.java:31)
  at org.gradle.messaging.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)
  at com.sun.proxy.$Proxy26.afterExecute(Unknown Source)
  at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
  at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
  at org.gradle.internal.event.BroadcastDispatch.dispatch(BroadcastDispatch.java:87)
  at org.gradle.internal.event.BroadcastDispatch.dispatch(BroadcastDispatch.java:31)
  at org.gradle.messaging.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)
  at com.sun.proxy.$Proxy26.afterExecute(Unknown Source)
  at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.executeTask(AbstractTaskPlanExecutor.java:82)
  at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.processTask(AbstractTaskPlanExecutor.java:63)
  at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.run(AbstractTaskPlanExecutor.java:51)
  at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54)
  at org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40)
  Cause 1: java.lang.NullPointerException
  at com.android.build.gradle.internal.profile.RecordingBuildListener.afterExecute(RecordingBuildListener.groovy:83)
  at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
  at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
  at org.gradle.internal.event.BroadcastDispatch.dispatch(BroadcastDispatch.java:87)
  at org.gradle.internal.event.BroadcastDispatch.dispatch(BroadcastDispatch.java:31)
  at org.gradle.internal.event.BroadcastDispatch.dispatch(BroadcastDispatch.java:87)
  at org.gradle.internal.event.BroadcastDispatch.dispatch(BroadcastDispatch.java:31)
  at org.gradle.messaging.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)
  at com.sun.proxy.$Proxy26.afterExecute(Unknown Source)
  at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
  at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
  at org.gradle.internal.event.BroadcastDispatch.dispatch(BroadcastDispatch.java:87)
  at org.gradle.internal.event.BroadcastDispatch.dispatch(BroadcastDispatch.java:31)
  at org.gradle.messaging.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)
  at com.sun.proxy.$Proxy26.afterExecute(Unknown Source)
  at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.executeTask(AbstractTaskPlanExecutor.java:82)
  at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.processTask(AbstractTaskPlanExecutor.java:63)
  at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.run(AbstractTaskPlanExecutor.java:51)
  at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54)
  at org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40)
  Cause 2: java.lang.NullPointerException
  at org.codehaus.groovy.runtime.callsite.GetEffectivePogoFieldSite.callGroovyObjectGetProperty(GetEffectivePogoFieldSite.java:54)
  at com.android.build.gradle.internal.profile.RecordingBuildListener.afterExecute(RecordingBuildListener.groovy:83)
  at sun.reflect.GeneratedMethodAccessor341.invoke(Unknown Source)
  at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  at java.lang.reflect.Method.invoke(Method.java:606)
  at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
  at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
  at org.gradle.internal.event.BroadcastDispatch.dispatch(BroadcastDispatch.java:87)
  at org.gradle.internal.event.BroadcastDispatch.dispatch(BroadcastDispatch.java:31)
  at org.gradle.internal.event.BroadcastDispatch.dispatch(BroadcastDispatch.java:87)
  at org.gradle.internal.event.BroadcastDispatch.dispatch(BroadcastDispatch.java:31)
  at org.gradle.messaging.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)
  at com.sun.proxy.$Proxy26.afterExecute(Unknown Source)
  at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
  at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  at java.lang.reflect.Method.invoke(Method.java:606)
  at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
  at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
  at org.gradle.internal.event.BroadcastDispatch.dispatch(BroadcastDispatch.java:87)
  at org.gradle.internal.event.BroadcastDispatch.dispatch(BroadcastDispatch.java:31)
  at org.gradle.messaging.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)
  at com.sun.proxy.$Proxy26.afterExecute(Unknown Source)
  at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.executeTask(AbstractTaskPlanExecutor.java:82)
  at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.processTask(AbstractTaskPlanExecutor.java:63)
  at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.run(AbstractTaskPlanExecutor.java:51)
  at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54)
  at org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40)
  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
  at java.lang.Thread.run(Thread.java:745)
  Cause 3: java.lang.NullPointerException
  at org.codehaus.groovy.runtime.callsite.GetEffectivePogoFieldSite.callGroovyObjectGetProperty(GetEffectivePogoFieldSite.java:54)
  at com.android.build.gradle.internal.profile.RecordingBuildListener.afterExecute(RecordingBuildListener.groovy:83)
  at sun.reflect.GeneratedMethodAccessor341.invoke(Unknown Source)
  at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  at java.lang.reflect.Method.invoke(Method.java:606)
  at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
  at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
  at org.gradle.internal.event.BroadcastDispatch.dispatch(BroadcastDispatch.java:87)
  at org.gradle.internal.event.BroadcastDispatch.dispatch(BroadcastDispatch.java:31)
  at org.gradle.internal.event.BroadcastDispatch.dispatch(BroadcastDispatch.java:87)
  at org.gradle.internal.event.BroadcastDispatch.dispatch(BroadcastDispatch.java:31)
  at org.gradle.messaging.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)
  at com.sun.proxy.$Proxy26.afterExecute(Unknown Source)
  at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
  at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  at java.lang.reflect.Method.invoke(Method.java:606)
  at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
  at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
  at org.gradle.internal.event.BroadcastDispatch.dispatch(BroadcastDispatch.java:87)
  at org.gradle.internal.event.BroadcastDispatch.dispatch(BroadcastDispatch.java:31)
  at org.gradle.messaging.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)
  at com.sun.proxy.$Proxy26.afterExecute(Unknown Source)
  at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.executeTask(AbstractTaskPlanExecutor.java:82)
  at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.processTask(AbstractTaskPlanExecutor.java:63)
  at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.run(AbstractTaskPlanExecutor.java:51)
  at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54)
  at org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40)
  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
  at java.lang.Thread.run(Thread.java:745)
  Cause 4: java.lang.NullPointerException
  at org.codehaus.groovy.runtime.callsite.GetEffectivePogoFieldSite.callGroovyObjectGetProperty(GetEffectivePogoFieldSite.java:54)
  at com.android.build.gradle.internal.profile.RecordingBuildListener.afterExecute(RecordingBuildListener.groovy:83)
  at sun.reflect.GeneratedMethodAccessor341.invoke(Unknown Source)
  at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  at java.lang.reflect.Method.invoke(Method.java:606)
  at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
  at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
  at org.gradle.internal.event.BroadcastDispatch.dispatch(BroadcastDispatch.java:87)
  at org.gradle.internal.event.BroadcastDispatch.dispatch(BroadcastDispatch.java:31)
  at org.gradle.internal.event.BroadcastDispatch.dispatch(BroadcastDispatch.java:87)
  at org.gradle.internal.event.BroadcastDispatch.dispatch(BroadcastDispatch.java:31)
  at org.gradle.messaging.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)
  at com.sun.proxy.$Proxy26.afterExecute(Unknown Source)
  at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
  at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  at java.lang.reflect.Method.invoke(Method.java:606)
  at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
  at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
  at org.gradle.internal.event.BroadcastDispatch.dispatch(BroadcastDispatch.java:87)
  at org.gradle.internal.event.BroadcastDispatch.dispatch(BroadcastDispatch.java:31)
  at org.gradle.messaging.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)
  at com.sun.proxy.$Proxy26.afterExecute(Unknown Source)
  at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.executeTask(AbstractTaskPlanExecutor.java:82)
  at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.processTask(AbstractTaskPlanExecutor.java:63)
  at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.run(AbstractTaskPlanExecutor.java:51)
  at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54)
  at org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40)
  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
  at java.lang.Thread.run(Thread.java:745)

[Markus_Haas (post)]

Same here with gradle 2.11
Is there a workaround for the incremental build to avoid the NPE?

[Andrea_Panattoni]

Same problem here with gradle 2.9.

Is there any update?