[GRADLE-3545] NullPointerException when running two instances of Gradle in parallel Created: 31/Aug/16  Updated: 05/Sep/16  Resolved: 05/Sep/16

Status: Resolved
Project: Gradle
Affects Version/s: 2.14, 2.14.1, 3.0
Fix Version/s: 3.1-rc-1

Type: Bug
Reporter: Stefan Wolf Assignee: Unassigned
Resolution: Fixed Votes: 0

Issue Links:
Related
Related to GRADLE-3546 Null value in entry: dependencyCacheD... Resolved

 Description   

See https://discuss.gradle.org/t/parallel-execution-of-gradle-processes-leads-to-npe-regression-in-2-14/19254/8

We use gradle-cargo-plugin (version 2.2.2 - latest) to deploy to a wildfly application server. As part of our installation procedure, we invoke "gradle undeploy" command twice in parallel (two separate processes, each with different port-offset / server instance, e.g. gradle undeploy & gradle undeploy -Dport.offset=100 &). Starting with gradle 2.14, this stopped working - one of the instances fails with a NPE:

17:30:14.940 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] 
17:30:14.945 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] FAILURE: Build failed with an exception.
17:30:14.945 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] 
17:30:14.945 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] * What went wrong:
17:30:14.945 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] java.lang.NullPointerException (no error message)
17:30:14.946 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] 
17:30:14.946 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] * Exception is:
17:30:14.956 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] java.lang.NullPointerException
17:30:14.956 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.api.internal.changedetection.state.TreeSnapshotRepository.removeTreeSnapshotUsage(TreeSnapshotRepository.java:85)
17:30:14.957 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.api.internal.changedetection.state.CacheBackedFileSnapshotRepository.remove(CacheBackedFileSnapshotRepository.java:47)
17:30:14.957 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.api.internal.changedetection.state.CacheBackedTaskHistoryRepository$1$1.run(CacheBackedTaskHistoryRepository.java:99)
17:30:14.957 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.internal.Factories$1.create(Factories.java:22)
17:30:14.957 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.cache.internal.DefaultCacheAccess.useCache(DefaultCacheAccess.java:192)
17:30:14.957 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.cache.internal.DefaultCacheAccess.useCache(DefaultCacheAccess.java:175)
17:30:14.957 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.cache.internal.DefaultPersistentDirectoryStore.useCache(DefaultPersistentDirectoryStore.java:106)
17:30:14.957 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.api.internal.changedetection.state.DefaultTaskArtifactStateCacheAccess.useCache(DefaultTaskArtifactStateCacheAccess.java:60)
17:30:14.957 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.api.internal.changedetection.state.CacheBackedTaskHistoryRepository$1.update(CacheBackedTaskHistoryRepository.java:75)
17:30:14.957 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.api.internal.changedetection.changes.DefaultTaskArtifactStateRepository$TaskArtifactStateImpl.afterTask(DefaultTaskArtifactStateRepository.java:153)
17:30:14.958 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.api.internal.changedetection.changes.ShortCircuitTaskArtifactStateRepository$RerunTaskArtifactState.afterTask(ShortCircuitTaskArtifactStateRepository.java:97)
17:30:14.958 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExecuter.java:66)
17:30:14.958 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:58)
17:30:14.958 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:52)
17:30:14.958 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:52)
17:30:14.958 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:53)
17:30:14.958 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter.execute(ExecuteAtMostOnceTaskExecuter.java:43)
17:30:14.958 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:203)
17:30:14.958 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:185)
17:30:14.959 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.processTask(AbstractTaskPlanExecutor.java:74)
17:30:14.959 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.run(AbstractTaskPlanExecutor.java:55)
17:30:14.959 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor.process(DefaultTaskPlanExecutor.java:32)
17:30:14.959 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter.execute(DefaultTaskGraphExecuter.java:110)
17:30:14.959 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.execution.SelectedTaskExecutionAction.execute(SelectedTaskExecutionAction.java:37)

17:30:14.959 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:37)
17:30:14.959 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.execution.DefaultBuildExecuter.access$000(DefaultBuildExecuter.java:23)
17:30:14.959 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.execution.DefaultBuildExecuter$1.proceed(DefaultBuildExecuter.java:43)
17:30:14.959 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.execution.DryRunBuildExecutionAction.execute(DryRunBuildExecutionAction.java:32)
17:30:14.960 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:37)
17:30:14.960 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:30)
17:30:14.960 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.initialization.DefaultGradleLauncher$4.run(DefaultGradleLauncher.java:153)
17:30:14.960 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.internal.Factories$1.create(Factories.java:22)
17:30:14.960 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:91)
17:30:14.960 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:53)
17:30:14.960 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.initialization.DefaultGradleLauncher.doBuildStages(DefaultGradleLauncher.java:150)
17:30:14.960 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.initialization.DefaultGradleLauncher.access$200(DefaultGradleLauncher.java:32)
17:30:14.960 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.initialization.DefaultGradleLauncher$1.create(DefaultGradleLauncher.java:98)
17:30:14.960 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.initialization.DefaultGradleLauncher$1.create(DefaultGradleLauncher.java:92)
17:30:14.960 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:91)
17:30:14.961 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:63)
17:30:14.961 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.initialization.DefaultGradleLauncher.doBuild(DefaultGradleLauncher.java:92)
17:30:14.961 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.initialization.DefaultGradleLauncher.run(DefaultGradleLauncher.java:83)
17:30:14.961 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.launcher.exec.InProcessBuildActionExecuter$DefaultBuildController.run(InProcessBuildActionExecuter.java:94)
17:30:14.961 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.tooling.internal.provider.ExecuteBuildActionRunner.run(ExecuteBuildActionRunner.java:28)
17:30:14.961 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.launcher.exec.ChainingBuildActionRunner.run(ChainingBuildActionRunner.java:35)
17:30:14.961 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:43)
17:30:14.961 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:28)
17:30:14.961 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.launcher.exec.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:82)
17:30:14.961 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.launcher.exec.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:49)
17:30:14.962 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.launcher.cli.RunBuildAction.run(RunBuildAction.java:43)
17:30:14.962 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.internal.Actions$RunnableActionAdapter.execute(Actions.java:173)
17:30:14.962 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.launcher.cli.CommandLineActionFactory$ParseAndBuildAction.execute(CommandLineActionFactory.java:244)
17:30:14.962 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.launcher.cli.CommandLineActionFactory$ParseAndBuildAction.execute(CommandLineActionFactory.java:217)
17:30:14.962 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.launcher.cli.JavaRuntimeValidationAction.execute(JavaRuntimeValidationAction.java:33)
17:30:14.962 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.launcher.cli.JavaRuntimeValidationAction.execute(JavaRuntimeValidationAction.java:24)
17:30:14.962 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.launcher.cli.ExceptionReportingAction.execute(ExceptionReportingAction.java:33)
17:30:14.962 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.launcher.cli.ExceptionReportingAction.execute(ExceptionReportingAction.java:22)
17:30:14.962 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.launcher.cli.CommandLineActionFactory$WithLogging.execute(CommandLineActionFactory.java:210)
17:30:14.962 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.launcher.cli.CommandLineActionFactory$WithLogging.execute(CommandLineActionFactory.java:174)
17:30:14.963 [LIFECYCLE] [org.gradle.internal.buildevents.BuildResultLogger] 
17:30:14.963 [LIFECYCLE] [org.gradle.internal.buildevents.BuildResultLogger] BUILD FAILED
17:30:14.963 [LIFECYCLE] [org.gradle.internal.buildevents.BuildResultLogger]

It is probably unrelated to gradle-cargo-plugin. I'm not sure which part of our configuration is relevant for this bug and I don't want to send the complete long configuration. But if the bug is impossible to track down without more information, I can provide whatever you ask for.

It occurs both for daemon and non-daemon builds.

 Comments   
Comment by Stefan Wolf [ 31/Aug/16 ]

Stack trace for 3.0:

    * Exception is:
    java.lang.NullPointerException
    	at org.gradle.api.internal.changedetection.state.TreeSnapshotRepository.removeTreeSnapshotUsage(TreeSnapshotRepository.java:85)
    	at org.gradle.api.internal.changedetection.state.CacheBackedFileSnapshotRepository.remove(CacheBackedFileSnapshotRepository.java:47)
    	at org.gradle.api.internal.changedetection.state.CacheBackedTaskHistoryRepository$1$1.run(CacheBackedTaskHistoryRepository.java:99)
    	at org.gradle.internal.Factories$1.create(Factories.java:22)
    	at org.gradle.cache.internal.DefaultCacheAccess.useCache(DefaultCacheAccess.java:192)
    	at org.gradle.cache.internal.DefaultCacheAccess.useCache(DefaultCacheAccess.java:175)
    	at org.gradle.cache.internal.DefaultPersistentDirectoryStore.useCache(DefaultPersistentDirectoryStore.java:106)
    	at org.gradle.cache.internal.DefaultCacheFactory$ReferenceTrackingCache.useCache(DefaultCacheFactory.java:187)
    	at org.gradle.api.internal.changedetection.state.DefaultTaskArtifactStateCacheAccess.useCache(DefaultTaskArtifactStateCacheAccess.java:60)
    	at org.gradle.api.internal.changedetection.state.CacheBackedTaskHistoryRepository$1.update(CacheBackedTaskHistoryRepository.java:75)
    	at org.gradle.api.internal.changedetection.changes.DefaultTaskArtifactStateRepository$TaskArtifactStateImpl.afterTask(DefaultTaskArtifactStateRepository.java:153)
    	at org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExecuter.java:66)
    	at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:58)
    	at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:52)
    	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.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:203)
    	at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:185)
    	at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.processTask(AbstractTaskPlanExecutor.java:74)
    	at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.run(AbstractTaskPlanExecutor.java:55)
    	at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor.process(DefaultTaskPlanExecutor.java:32)
    	at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter.execute(DefaultTaskGraphExecuter.java:110)
    	at org.gradle.execution.SelectedTaskExecutionAction.execute(SelectedTaskExecutionAction.java:37)
    	at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:37)
    	at org.gradle.execution.DefaultBuildExecuter.access$000(DefaultBuildExecuter.java:23)
    	at org.gradle.execution.DefaultBuildExecuter$1.proceed(DefaultBuildExecuter.java:43)
    	at org.gradle.execution.DryRunBuildExecutionAction.execute(DryRunBuildExecutionAction.java:32)
    	at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:37)
    	at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:30)
    	at org.gradle.initialization.DefaultGradleLauncher$4.run(DefaultGradleLauncher.java:153)
    	at org.gradle.internal.Factories$1.create(Factories.java:22)
    	at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:91)
    	at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:53)
    	at org.gradle.initialization.DefaultGradleLauncher.doBuildStages(DefaultGradleLauncher.java:150)
    	at org.gradle.initialization.DefaultGradleLauncher.access$200(DefaultGradleLauncher.java:32)
    	at org.gradle.initialization.DefaultGradleLauncher$1.create(DefaultGradleLauncher.java:98)
    	at org.gradle.initialization.DefaultGradleLauncher$1.create(DefaultGradleLauncher.java:92)
    	at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:91)
    	at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:63)
    	at org.gradle.initialization.DefaultGradleLauncher.doBuild(DefaultGradleLauncher.java:92)
    	at org.gradle.initialization.DefaultGradleLauncher.run(DefaultGradleLauncher.java:83)
    	at org.gradle.launcher.exec.InProcessBuildActionExecuter$DefaultBuildController.run(InProcessBuildActionExecuter.java:94)
    	at org.gradle.tooling.internal.provider.ExecuteBuildActionRunner.run(ExecuteBuildActionRunner.java:28)
    	at org.gradle.launcher.exec.ChainingBuildActionRunner.run(ChainingBuildActionRunner.java:35)
    	at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:43)
    	at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:28)
    	at org.gradle.launcher.exec.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:82)
    	at org.gradle.launcher.exec.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:49)
    	at org.gradle.launcher.daemon.server.exec.ExecuteBuild.doBuild(ExecuteBuild.java:59)
    	at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
    	at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
    	at org.gradle.launcher.daemon.server.exec.WatchForDisconnection.execute(WatchForDisconnection.java:49)
    	at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
    	at org.gradle.launcher.daemon.server.exec.ResetDeprecationLogger.execute(ResetDeprecationLogger.java:26)
    	at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
    	at org.gradle.launcher.daemon.server.exec.RequestStopIfSingleUsedDaemon.execute(RequestStopIfSingleUsedDaemon.java:34)
    	at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
    	at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:74)
    	at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:72)
    	at org.gradle.util.Swapper.swap(Swapper.java:38)
    	at org.gradle.launcher.daemon.server.exec.ForwardClientInput.execute(ForwardClientInput.java:72)
    	at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
    	at org.gradle.launcher.daemon.server.exec.LogAndCheckHealth.execute(LogAndCheckHealth.java:55)
    	at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
    	at org.gradle.launcher.daemon.server.exec.LogToClient.doBuild(LogToClient.java:60)
    	at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
    	at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
    	at org.gradle.launcher.daemon.server.exec.EstablishBuildEnvironment.doBuild(EstablishBuildEnvironment.java:72)
    	at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
    	at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
    	at org.gradle.launcher.daemon.server.exec.HintGCAfterBuild.execute(HintGCAfterBuild.java:44)
    	at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:120)
    	at org.gradle.launcher.daemon.server.exec.StartBuildOrRespondWithBusy$1.run(StartBuildOrRespondWithBusy.java:50)
    	at org.gradle.launcher.daemon.server.DaemonStateCoordinator$1.run(DaemonStateCoordinator.java:240)
    	at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54)
    	at org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40)
Comment by Stefan Wolf [ 31/Aug/16 ]

This could be related GRADLE-3546.

Comment by Stefan Wolf [ 05/Sep/16 ]

Seems to be fixed in 3.1 since the code which was causing the NPE has been removed from Gradle.

Generated at Wed Jun 30 12:51:36 CDT 2021 using Jira 8.4.2#804003-sha1:d21414fc212e3af190e92c2d2ac41299b89402cf.