[ 
https://issues.apache.org/jira/browse/CALCITE-4627?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Stamatis Zampetakis updated CALCITE-4627:
-----------------------------------------
    Component/s: build

> GPG signing failed when preparing Calcite release
> -------------------------------------------------
>
>                 Key: CALCITE-4627
>                 URL: https://issues.apache.org/jira/browse/CALCITE-4627
>             Project: Calcite
>          Issue Type: Bug
>          Components: build
>    Affects Versions: 1.26.0
>            Reporter: Stamatis Zampetakis
>            Priority: Major
>
> While trying to prepare the release candidate the following error comes up 
> from time to time.
> {noformat}
> gpg: signing failed: Cannot allocate memory{noformat}
> The result is that the task fails quite often. The full result output is 
> shown below.
> {noformat}
> ./gradlew clean prepareVote -Prc=0 
> > Configure project :
> Building Apache Calcite 1.27.0
> > Task :initializeNexusStagingRepository
> Initialized stagingRepositoryId orgapachecalcite-1622470091753 for repository 
> nexus
> > Task :release:distTar
> Source distribution is created: 
> /home/stamatis/Projects/Apache/calcite/release/build/distributions/apache-calcite-1.27.0-src.tar.gz
> > Task :druid:signDruidPublication FAILED
> gpg: signing failed: Cannot allocate memory
> gpg: signing failed: Cannot allocate memory
> > Task :mongodb:signMongodbPublication FAILED
> gpg: signing failed: Cannot allocate memory
> gpg: signing failed: Cannot allocate memory
> > Task :core:signCorePublication FAILED
> gpg: signing failed: Cannot allocate memory
> gpg: signing failed: Cannot allocate memory
> > Task :babel:signBabelPublication FAILED
> gpg: signing failed: Cannot allocate memory
> gpg: signing failed: Cannot allocate memory
> Build calcite FAILURE reason:                                
>     org.gradle.execution.MultipleBuildFailures: Build completed with 4 
> failures.
>         at 
> org.gradle.initialization.DefaultGradleLauncher.runWork(DefaultGradleLauncher.java:262)
>         at 
> org.gradle.initialization.DefaultGradleLauncher.doClassicBuildStages(DefaultGradleLauncher.java:172)
>         at 
> org.gradle.initialization.DefaultGradleLauncher.doBuildStages(DefaultGradleLauncher.java:148)
>         at 
> org.gradle.initialization.DefaultGradleLauncher.executeTasks(DefaultGradleLauncher.java:124)
>         Execution failed for task ':druid:signDruidPublication':
>             org.gradle.process.internal.ExecException: Process 'command 
> 'gpg'' finished with non-zero exit value 2
>                 at 
> org.gradle.process.internal.DefaultExecHandle$ExecResultImpl.assertNormalExitValue(DefaultExecHandle.java:414)
>                 at 
> org.gradle.process.internal.DefaultExecAction.execute(DefaultExecAction.java:38)
>                 at 
> org.gradle.process.internal.DefaultExecActionFactory.exec(DefaultExecActionFactory.java:175)
>                 at 
> org.gradle.api.internal.project.DefaultProject.exec(DefaultProject.java:1166)
>                 at 
> org.gradle.security.internal.gnupg.GnupgSignatory.sign(GnupgSignatory.java:69)
>                 at 
> org.gradle.plugins.signing.type.AbstractSignatureType.sign(AbstractSignatureType.java:49)
>                 at 
> org.gradle.plugins.signing.type.pgp.ArmoredSignatureType.sign(ArmoredSignatureType.java:40)
>                 at 
> org.gradle.plugins.signing.type.AbstractSignatureType.sign(AbstractSignatureType.java:40)
>                 at 
> org.gradle.plugins.signing.Signature.generate(Signature.java:440)
>                 at org.gradle.plugins.signing.Sign.generate(Sign.java:206)
>                 at 
> org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:104)
>                 at 
> org.gradle.api.internal.project.taskfactory.StandardTaskAction.doExecute(StandardTaskAction.java:58)
>                 at 
> org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:51)
>                 at 
> org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:29)
>                 at 
> org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$2.run(ExecuteActionsTaskExecuter.java:494)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner$1.execute(DefaultBuildOperationRunner.java:29)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner$1.execute(DefaultBuildOperationRunner.java:26)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner$3.execute(DefaultBuildOperationRunner.java:75)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner$3.execute(DefaultBuildOperationRunner.java:68)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:153)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:68)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner.run(DefaultBuildOperationRunner.java:56)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationExecutor.lambda$run$1(DefaultBuildOperationExecutor.java:71)
>                 at 
> org.gradle.internal.operations.UnmanagedBuildOperationWrapper.runWithUnmanagedSupport(UnmanagedBuildOperationWrapper.java:45)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:71)
>                 at 
> org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:479)
>                 at 
> org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:462)
>                 at 
> org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.access$400(ExecuteActionsTaskExecuter.java:105)
>                 at 
> org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$TaskExecution.executeWithPreviousOutputFiles(ExecuteActionsTaskExecuter.java:273)
>                 at 
> org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$TaskExecution.execute(ExecuteActionsTaskExecuter.java:251)
>                 at 
> org.gradle.internal.execution.steps.ExecuteStep.lambda$executeOperation$1(ExecuteStep.java:66)
>                 at 
> org.gradle.internal.execution.steps.ExecuteStep.executeOperation(ExecuteStep.java:66)
>                 at 
> org.gradle.internal.execution.steps.ExecuteStep.access$000(ExecuteStep.java:34)
>                 at 
> org.gradle.internal.execution.steps.ExecuteStep$1.call(ExecuteStep.java:47)
>                 at 
> org.gradle.internal.execution.steps.ExecuteStep$1.call(ExecuteStep.java:44)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:200)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:195)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner$3.execute(DefaultBuildOperationRunner.java:75)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner$3.execute(DefaultBuildOperationRunner.java:68)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:153)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:68)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner.call(DefaultBuildOperationRunner.java:62)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationExecutor.lambda$call$2(DefaultBuildOperationExecutor.java:76)
>                 at 
> org.gradle.internal.operations.UnmanagedBuildOperationWrapper.callWithUnmanagedSupport(UnmanagedBuildOperationWrapper.java:54)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationExecutor.call(DefaultBuildOperationExecutor.java:76)
>                 at 
> org.gradle.internal.execution.steps.ExecuteStep.execute(ExecuteStep.java:44)
>                 at 
> org.gradle.internal.execution.steps.ExecuteStep.execute(ExecuteStep.java:34)
>                 at 
> org.gradle.internal.execution.steps.RemovePreviousOutputsStep.execute(RemovePreviousOutputsStep.java:72)
>                 at 
> org.gradle.internal.execution.steps.RemovePreviousOutputsStep.execute(RemovePreviousOutputsStep.java:42)
>                 at 
> org.gradle.internal.execution.steps.ResolveInputChangesStep.execute(ResolveInputChangesStep.java:53)
>                 at 
> org.gradle.internal.execution.steps.ResolveInputChangesStep.execute(ResolveInputChangesStep.java:39)
>                 at 
> org.gradle.internal.execution.steps.CancelExecutionStep.execute(CancelExecutionStep.java:44)
>                 at 
> org.gradle.internal.execution.steps.TimeoutStep.executeWithoutTimeout(TimeoutStep.java:77)
>                 at 
> org.gradle.internal.execution.steps.TimeoutStep.execute(TimeoutStep.java:58)
>                 at 
> org.gradle.internal.execution.steps.CreateOutputsStep.execute(CreateOutputsStep.java:54)
>                 at 
> org.gradle.internal.execution.steps.CreateOutputsStep.execute(CreateOutputsStep.java:32)
>                 at 
> org.gradle.internal.execution.steps.CaptureStateAfterExecutionStep.execute(CaptureStateAfterExecutionStep.java:57)
>                 at 
> org.gradle.internal.execution.steps.CaptureStateAfterExecutionStep.execute(CaptureStateAfterExecutionStep.java:38)
>                 at 
> org.gradle.internal.execution.steps.BroadcastChangingOutputsStep.execute(BroadcastChangingOutputsStep.java:63)
>                 at 
> org.gradle.internal.execution.steps.BroadcastChangingOutputsStep.execute(BroadcastChangingOutputsStep.java:30)
>                 at 
> org.gradle.internal.execution.steps.BuildCacheStep.executeWithoutCache(BuildCacheStep.java:176)
>                 at 
> org.gradle.internal.execution.steps.BuildCacheStep.execute(BuildCacheStep.java:76)
>                 at 
> org.gradle.internal.execution.steps.BuildCacheStep.execute(BuildCacheStep.java:47)
>                 at 
> org.gradle.internal.execution.steps.StoreExecutionStateStep.execute(StoreExecutionStateStep.java:43)
>                 at 
> org.gradle.internal.execution.steps.StoreExecutionStateStep.execute(StoreExecutionStateStep.java:32)
>                 at 
> org.gradle.internal.execution.steps.RecordOutputsStep.execute(RecordOutputsStep.java:39)
>                 at 
> org.gradle.internal.execution.steps.RecordOutputsStep.execute(RecordOutputsStep.java:25)
>                 at 
> org.gradle.internal.execution.steps.SkipUpToDateStep.executeBecause(SkipUpToDateStep.java:102)
>                 at 
> org.gradle.internal.execution.steps.SkipUpToDateStep.lambda$execute$0(SkipUpToDateStep.java:95)
>                 at 
> org.gradle.internal.execution.steps.SkipUpToDateStep.execute(SkipUpToDateStep.java:55)
>                 at 
> org.gradle.internal.execution.steps.SkipUpToDateStep.execute(SkipUpToDateStep.java:39)
>                 at 
> org.gradle.internal.execution.steps.ResolveChangesStep.execute(ResolveChangesStep.java:83)
>                 at 
> org.gradle.internal.execution.steps.ResolveChangesStep.execute(ResolveChangesStep.java:44)
>                 at 
> org.gradle.internal.execution.steps.legacy.MarkSnapshottingInputsFinishedStep.execute(MarkSnapshottingInputsFinishedStep.java:37)
>                 at 
> org.gradle.internal.execution.steps.legacy.MarkSnapshottingInputsFinishedStep.execute(MarkSnapshottingInputsFinishedStep.java:27)
>                 at 
> org.gradle.internal.execution.steps.ResolveCachingStateStep.execute(ResolveCachingStateStep.java:96)
>                 at 
> org.gradle.internal.execution.steps.ResolveCachingStateStep.execute(ResolveCachingStateStep.java:52)
>                 at 
> org.gradle.internal.execution.steps.CaptureStateBeforeExecutionStep.execute(CaptureStateBeforeExecutionStep.java:83)
>                 at 
> org.gradle.internal.execution.steps.CaptureStateBeforeExecutionStep.execute(CaptureStateBeforeExecutionStep.java:54)
>                 at 
> org.gradle.internal.execution.steps.ValidateStep.execute(ValidateStep.java:74)
>                 at 
> org.gradle.internal.execution.steps.SkipEmptyWorkStep.lambda$execute$2(SkipEmptyWorkStep.java:88)
>                 at 
> org.gradle.internal.execution.steps.SkipEmptyWorkStep.execute(SkipEmptyWorkStep.java:88)
>                 at 
> org.gradle.internal.execution.steps.SkipEmptyWorkStep.execute(SkipEmptyWorkStep.java:34)
>                 at 
> org.gradle.internal.execution.steps.legacy.MarkSnapshottingInputsStartedStep.execute(MarkSnapshottingInputsStartedStep.java:38)
>                 at 
> org.gradle.internal.execution.steps.LoadExecutionStateStep.execute(LoadExecutionStateStep.java:46)
>                 at 
> org.gradle.internal.execution.steps.LoadExecutionStateStep.execute(LoadExecutionStateStep.java:34)
>                 at 
> org.gradle.internal.execution.steps.AssignWorkspaceStep.lambda$execute$0(AssignWorkspaceStep.java:43)
>                 at 
> org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$TaskExecution$3.withWorkspace(ExecuteActionsTaskExecuter.java:286)
>                 at 
> org.gradle.internal.execution.steps.AssignWorkspaceStep.execute(AssignWorkspaceStep.java:43)
>                 at 
> org.gradle.internal.execution.steps.AssignWorkspaceStep.execute(AssignWorkspaceStep.java:33)
>                 at 
> org.gradle.internal.execution.steps.IdentityCacheStep.execute(IdentityCacheStep.java:40)
>                 at 
> org.gradle.internal.execution.steps.IdentityCacheStep.execute(IdentityCacheStep.java:30)
>                 at 
> org.gradle.internal.execution.steps.IdentifyStep.execute(IdentifyStep.java:54)
>                 at 
> org.gradle.internal.execution.steps.IdentifyStep.execute(IdentifyStep.java:40)
>         Execution failed for task ':mongodb:signMongodbPublication':
>             org.gradle.process.internal.ExecException: Process 'command 
> 'gpg'' finished with non-zero exit value 2
>                 at 
> org.gradle.process.internal.DefaultExecHandle$ExecResultImpl.assertNormalExitValue(DefaultExecHandle.java:414)
>                 at 
> org.gradle.process.internal.DefaultExecAction.execute(DefaultExecAction.java:38)
>                 at 
> org.gradle.process.internal.DefaultExecActionFactory.exec(DefaultExecActionFactory.java:175)
>                 at 
> org.gradle.api.internal.project.DefaultProject.exec(DefaultProject.java:1166)
>                 at 
> org.gradle.security.internal.gnupg.GnupgSignatory.sign(GnupgSignatory.java:69)
>                 at 
> org.gradle.plugins.signing.type.AbstractSignatureType.sign(AbstractSignatureType.java:49)
>                 at 
> org.gradle.plugins.signing.type.pgp.ArmoredSignatureType.sign(ArmoredSignatureType.java:40)
>                 at 
> org.gradle.plugins.signing.type.AbstractSignatureType.sign(AbstractSignatureType.java:40)
>                 at 
> org.gradle.plugins.signing.Signature.generate(Signature.java:440)
>                 at org.gradle.plugins.signing.Sign.generate(Sign.java:206)
>                 at 
> org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:104)
>                 at 
> org.gradle.api.internal.project.taskfactory.StandardTaskAction.doExecute(StandardTaskAction.java:58)
>                 at 
> org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:51)
>                 at 
> org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:29)
>                 at 
> org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$2.run(ExecuteActionsTaskExecuter.java:494)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner$1.execute(DefaultBuildOperationRunner.java:29)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner$1.execute(DefaultBuildOperationRunner.java:26)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner$3.execute(DefaultBuildOperationRunner.java:75)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner$3.execute(DefaultBuildOperationRunner.java:68)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:153)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:68)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner.run(DefaultBuildOperationRunner.java:56)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationExecutor.lambda$run$1(DefaultBuildOperationExecutor.java:71)
>                 at 
> org.gradle.internal.operations.UnmanagedBuildOperationWrapper.runWithUnmanagedSupport(UnmanagedBuildOperationWrapper.java:45)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:71)
>                 at 
> org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:479)
>                 at 
> org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:462)
>                 at 
> org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.access$400(ExecuteActionsTaskExecuter.java:105)
>                 at 
> org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$TaskExecution.executeWithPreviousOutputFiles(ExecuteActionsTaskExecuter.java:273)
>                 at 
> org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$TaskExecution.execute(ExecuteActionsTaskExecuter.java:251)
>                 at 
> org.gradle.internal.execution.steps.ExecuteStep.lambda$executeOperation$1(ExecuteStep.java:66)
>                 at java.util.Optional.orElseGet(Optional.java:267)
>                 at 
> org.gradle.internal.execution.steps.ExecuteStep.executeOperation(ExecuteStep.java:66)
>                 at 
> org.gradle.internal.execution.steps.ExecuteStep.access$000(ExecuteStep.java:34)
>                 at 
> org.gradle.internal.execution.steps.ExecuteStep$1.call(ExecuteStep.java:47)
>                 at 
> org.gradle.internal.execution.steps.ExecuteStep$1.call(ExecuteStep.java:44)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:200)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:195)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner$3.execute(DefaultBuildOperationRunner.java:75)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner$3.execute(DefaultBuildOperationRunner.java:68)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:153)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:68)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner.call(DefaultBuildOperationRunner.java:62)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationExecutor.lambda$call$2(DefaultBuildOperationExecutor.java:76)
>                 at 
> org.gradle.internal.operations.UnmanagedBuildOperationWrapper.callWithUnmanagedSupport(UnmanagedBuildOperationWrapper.java:54)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationExecutor.call(DefaultBuildOperationExecutor.java:76)
>                 at 
> org.gradle.internal.execution.steps.ExecuteStep.execute(ExecuteStep.java:44)
>                 at 
> org.gradle.internal.execution.steps.ExecuteStep.execute(ExecuteStep.java:34)
>                 at 
> org.gradle.internal.execution.steps.RemovePreviousOutputsStep.execute(RemovePreviousOutputsStep.java:72)
>                 at 
> org.gradle.internal.execution.steps.RemovePreviousOutputsStep.execute(RemovePreviousOutputsStep.java:42)
>                 at 
> org.gradle.internal.execution.steps.ResolveInputChangesStep.execute(ResolveInputChangesStep.java:53)
>                 at 
> org.gradle.internal.execution.steps.ResolveInputChangesStep.execute(ResolveInputChangesStep.java:39)
>                 at 
> org.gradle.internal.execution.steps.CancelExecutionStep.execute(CancelExecutionStep.java:44)
>                 at 
> org.gradle.internal.execution.steps.TimeoutStep.executeWithoutTimeout(TimeoutStep.java:77)
>                 at 
> org.gradle.internal.execution.steps.TimeoutStep.execute(TimeoutStep.java:58)
>                 at 
> org.gradle.internal.execution.steps.CreateOutputsStep.execute(CreateOutputsStep.java:54)
>                 at 
> org.gradle.internal.execution.steps.CreateOutputsStep.execute(CreateOutputsStep.java:32)
>                 at 
> org.gradle.internal.execution.steps.CaptureStateAfterExecutionStep.execute(CaptureStateAfterExecutionStep.java:57)
>                 at 
> org.gradle.internal.execution.steps.CaptureStateAfterExecutionStep.execute(CaptureStateAfterExecutionStep.java:38)
>                 at 
> org.gradle.internal.execution.steps.BroadcastChangingOutputsStep.execute(BroadcastChangingOutputsStep.java:63)
>                 at 
> org.gradle.internal.execution.steps.BroadcastChangingOutputsStep.execute(BroadcastChangingOutputsStep.java:30)
>                 at 
> org.gradle.internal.execution.steps.BuildCacheStep.executeWithoutCache(BuildCacheStep.java:176)
>                 at 
> org.gradle.internal.execution.steps.BuildCacheStep.execute(BuildCacheStep.java:76)
>                 at 
> org.gradle.internal.execution.steps.BuildCacheStep.execute(BuildCacheStep.java:47)
>                 at 
> org.gradle.internal.execution.steps.StoreExecutionStateStep.execute(StoreExecutionStateStep.java:43)
>                 at 
> org.gradle.internal.execution.steps.StoreExecutionStateStep.execute(StoreExecutionStateStep.java:32)
>                 at 
> org.gradle.internal.execution.steps.RecordOutputsStep.execute(RecordOutputsStep.java:39)
>                 at 
> org.gradle.internal.execution.steps.RecordOutputsStep.execute(RecordOutputsStep.java:25)
>                 at 
> org.gradle.internal.execution.steps.SkipUpToDateStep.executeBecause(SkipUpToDateStep.java:102)
>                 at 
> org.gradle.internal.execution.steps.SkipUpToDateStep.lambda$execute$0(SkipUpToDateStep.java:95)
>                 at java.util.Optional.map(Optional.java:215)
>                 at 
> org.gradle.internal.execution.steps.SkipUpToDateStep.execute(SkipUpToDateStep.java:55)
>                 at 
> org.gradle.internal.execution.steps.SkipUpToDateStep.execute(SkipUpToDateStep.java:39)
>                 at 
> org.gradle.internal.execution.steps.ResolveChangesStep.execute(ResolveChangesStep.java:83)
>                 at 
> org.gradle.internal.execution.steps.ResolveChangesStep.execute(ResolveChangesStep.java:44)
>                 at 
> org.gradle.internal.execution.steps.legacy.MarkSnapshottingInputsFinishedStep.execute(MarkSnapshottingInputsFinishedStep.java:37)
>                 at 
> org.gradle.internal.execution.steps.legacy.MarkSnapshottingInputsFinishedStep.execute(MarkSnapshottingInputsFinishedStep.java:27)
>                 at 
> org.gradle.internal.execution.steps.ResolveCachingStateStep.execute(ResolveCachingStateStep.java:96)
>                 at 
> org.gradle.internal.execution.steps.ResolveCachingStateStep.execute(ResolveCachingStateStep.java:52)
>                 at 
> org.gradle.internal.execution.steps.CaptureStateBeforeExecutionStep.execute(CaptureStateBeforeExecutionStep.java:83)
>                 at 
> org.gradle.internal.execution.steps.CaptureStateBeforeExecutionStep.execute(CaptureStateBeforeExecutionStep.java:54)
>                 at 
> org.gradle.internal.execution.steps.ValidateStep.execute(ValidateStep.java:74)
>                 at 
> org.gradle.internal.execution.steps.SkipEmptyWorkStep.lambda$execute$2(SkipEmptyWorkStep.java:88)
>                 at java.util.Optional.orElseGet(Optional.java:267)
>                 at 
> org.gradle.internal.execution.steps.SkipEmptyWorkStep.execute(SkipEmptyWorkStep.java:88)
>                 at 
> org.gradle.internal.execution.steps.SkipEmptyWorkStep.execute(SkipEmptyWorkStep.java:34)
>                 at 
> org.gradle.internal.execution.steps.legacy.MarkSnapshottingInputsStartedStep.execute(MarkSnapshottingInputsStartedStep.java:38)
>                 at 
> org.gradle.internal.execution.steps.LoadExecutionStateStep.execute(LoadExecutionStateStep.java:46)
>                 at 
> org.gradle.internal.execution.steps.LoadExecutionStateStep.execute(LoadExecutionStateStep.java:34)
>                 at 
> org.gradle.internal.execution.steps.AssignWorkspaceStep.lambda$execute$0(AssignWorkspaceStep.java:43)
>                 at 
> org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$TaskExecution$3.withWorkspace(ExecuteActionsTaskExecuter.java:286)
>                 at 
> org.gradle.internal.execution.steps.AssignWorkspaceStep.execute(AssignWorkspaceStep.java:43)
>                 at 
> org.gradle.internal.execution.steps.AssignWorkspaceStep.execute(AssignWorkspaceStep.java:33)
>                 at 
> org.gradle.internal.execution.steps.IdentityCacheStep.execute(IdentityCacheStep.java:40)
>                 at 
> org.gradle.internal.execution.steps.IdentityCacheStep.execute(IdentityCacheStep.java:30)
>                 at 
> org.gradle.internal.execution.steps.IdentifyStep.execute(IdentifyStep.java:54)
>                 at 
> org.gradle.internal.execution.steps.IdentifyStep.execute(IdentifyStep.java:40)
>         Execution failed for task ':core:signCorePublication':
>             org.gradle.process.internal.ExecException: Process 'command 
> 'gpg'' finished with non-zero exit value 2
>                 at 
> org.gradle.process.internal.DefaultExecHandle$ExecResultImpl.assertNormalExitValue(DefaultExecHandle.java:414)
>                 at 
> org.gradle.process.internal.DefaultExecAction.execute(DefaultExecAction.java:38)
>                 at 
> org.gradle.process.internal.DefaultExecActionFactory.exec(DefaultExecActionFactory.java:175)
>                 at 
> org.gradle.api.internal.project.DefaultProject.exec(DefaultProject.java:1166)
>                 at 
> org.gradle.security.internal.gnupg.GnupgSignatory.sign(GnupgSignatory.java:69)
>                 at 
> org.gradle.plugins.signing.type.AbstractSignatureType.sign(AbstractSignatureType.java:49)
>                 at 
> org.gradle.plugins.signing.type.pgp.ArmoredSignatureType.sign(ArmoredSignatureType.java:40)
>                 at 
> org.gradle.plugins.signing.type.AbstractSignatureType.sign(AbstractSignatureType.java:40)
>                 at 
> org.gradle.plugins.signing.Signature.generate(Signature.java:440)
>                 at org.gradle.plugins.signing.Sign.generate(Sign.java:206)
>                 at 
> org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:104)
>                 at 
> org.gradle.api.internal.project.taskfactory.StandardTaskAction.doExecute(StandardTaskAction.java:58)
>                 at 
> org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:51)
>                 at 
> org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:29)
>                 at 
> org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$2.run(ExecuteActionsTaskExecuter.java:494)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner$1.execute(DefaultBuildOperationRunner.java:29)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner$1.execute(DefaultBuildOperationRunner.java:26)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner$3.execute(DefaultBuildOperationRunner.java:75)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner$3.execute(DefaultBuildOperationRunner.java:68)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:153)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:68)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner.run(DefaultBuildOperationRunner.java:56)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationExecutor.lambda$run$1(DefaultBuildOperationExecutor.java:71)
>                 at 
> org.gradle.internal.operations.UnmanagedBuildOperationWrapper.runWithUnmanagedSupport(UnmanagedBuildOperationWrapper.java:45)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:71)
>                 at 
> org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:479)
>                 at 
> org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:462)
>                 at 
> org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.access$400(ExecuteActionsTaskExecuter.java:105)
>                 at 
> org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$TaskExecution.executeWithPreviousOutputFiles(ExecuteActionsTaskExecuter.java:273)
>                 at 
> org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$TaskExecution.execute(ExecuteActionsTaskExecuter.java:251)
>                 at 
> org.gradle.internal.execution.steps.ExecuteStep.lambda$executeOperation$1(ExecuteStep.java:66)
>                 at java.util.Optional.orElseGet(Optional.java:267)
>                 at 
> org.gradle.internal.execution.steps.ExecuteStep.executeOperation(ExecuteStep.java:66)
>                 at 
> org.gradle.internal.execution.steps.ExecuteStep.access$000(ExecuteStep.java:34)
>                 at 
> org.gradle.internal.execution.steps.ExecuteStep$1.call(ExecuteStep.java:47)
>                 at 
> org.gradle.internal.execution.steps.ExecuteStep$1.call(ExecuteStep.java:44)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:200)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:195)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner$3.execute(DefaultBuildOperationRunner.java:75)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner$3.execute(DefaultBuildOperationRunner.java:68)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:153)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:68)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner.call(DefaultBuildOperationRunner.java:62)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationExecutor.lambda$call$2(DefaultBuildOperationExecutor.java:76)
>                 at 
> org.gradle.internal.operations.UnmanagedBuildOperationWrapper.callWithUnmanagedSupport(UnmanagedBuildOperationWrapper.java:54)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationExecutor.call(DefaultBuildOperationExecutor.java:76)
>                 at 
> org.gradle.internal.execution.steps.ExecuteStep.execute(ExecuteStep.java:44)
>                 at 
> org.gradle.internal.execution.steps.ExecuteStep.execute(ExecuteStep.java:34)
>                 at 
> org.gradle.internal.execution.steps.RemovePreviousOutputsStep.execute(RemovePreviousOutputsStep.java:72)
>                 at 
> org.gradle.internal.execution.steps.RemovePreviousOutputsStep.execute(RemovePreviousOutputsStep.java:42)
>                 at 
> org.gradle.internal.execution.steps.ResolveInputChangesStep.execute(ResolveInputChangesStep.java:53)
>                 at 
> org.gradle.internal.execution.steps.ResolveInputChangesStep.execute(ResolveInputChangesStep.java:39)
>                 at 
> org.gradle.internal.execution.steps.CancelExecutionStep.execute(CancelExecutionStep.java:44)
>                 at 
> org.gradle.internal.execution.steps.TimeoutStep.executeWithoutTimeout(TimeoutStep.java:77)
>                 at 
> org.gradle.internal.execution.steps.TimeoutStep.execute(TimeoutStep.java:58)
>                 at 
> org.gradle.internal.execution.steps.CreateOutputsStep.execute(CreateOutputsStep.java:54)
>                 at 
> org.gradle.internal.execution.steps.CreateOutputsStep.execute(CreateOutputsStep.java:32)
>                 at 
> org.gradle.internal.execution.steps.CaptureStateAfterExecutionStep.execute(CaptureStateAfterExecutionStep.java:57)
>                 at 
> org.gradle.internal.execution.steps.CaptureStateAfterExecutionStep.execute(CaptureStateAfterExecutionStep.java:38)
>                 at 
> org.gradle.internal.execution.steps.BroadcastChangingOutputsStep.execute(BroadcastChangingOutputsStep.java:63)
>                 at 
> org.gradle.internal.execution.steps.BroadcastChangingOutputsStep.execute(BroadcastChangingOutputsStep.java:30)
>                 at 
> org.gradle.internal.execution.steps.BuildCacheStep.executeWithoutCache(BuildCacheStep.java:176)
>                 at 
> org.gradle.internal.execution.steps.BuildCacheStep.execute(BuildCacheStep.java:76)
>                 at 
> org.gradle.internal.execution.steps.BuildCacheStep.execute(BuildCacheStep.java:47)
>                 at 
> org.gradle.internal.execution.steps.StoreExecutionStateStep.execute(StoreExecutionStateStep.java:43)
>                 at 
> org.gradle.internal.execution.steps.StoreExecutionStateStep.execute(StoreExecutionStateStep.java:32)
>                 at 
> org.gradle.internal.execution.steps.RecordOutputsStep.execute(RecordOutputsStep.java:39)
>                 at 
> org.gradle.internal.execution.steps.RecordOutputsStep.execute(RecordOutputsStep.java:25)
>                 at 
> org.gradle.internal.execution.steps.SkipUpToDateStep.executeBecause(SkipUpToDateStep.java:102)
>                 at 
> org.gradle.internal.execution.steps.SkipUpToDateStep.lambda$execute$0(SkipUpToDateStep.java:95)
>                 at java.util.Optional.map(Optional.java:215)
>                 at 
> org.gradle.internal.execution.steps.SkipUpToDateStep.execute(SkipUpToDateStep.java:55)
>                 at 
> org.gradle.internal.execution.steps.SkipUpToDateStep.execute(SkipUpToDateStep.java:39)
>                 at 
> org.gradle.internal.execution.steps.ResolveChangesStep.execute(ResolveChangesStep.java:83)
>                 at 
> org.gradle.internal.execution.steps.ResolveChangesStep.execute(ResolveChangesStep.java:44)
>                 at 
> org.gradle.internal.execution.steps.legacy.MarkSnapshottingInputsFinishedStep.execute(MarkSnapshottingInputsFinishedStep.java:37)
>                 at 
> org.gradle.internal.execution.steps.legacy.MarkSnapshottingInputsFinishedStep.execute(MarkSnapshottingInputsFinishedStep.java:27)
>                 at 
> org.gradle.internal.execution.steps.ResolveCachingStateStep.execute(ResolveCachingStateStep.java:96)
>                 at 
> org.gradle.internal.execution.steps.ResolveCachingStateStep.execute(ResolveCachingStateStep.java:52)
>                 at 
> org.gradle.internal.execution.steps.CaptureStateBeforeExecutionStep.execute(CaptureStateBeforeExecutionStep.java:83)
>                 at 
> org.gradle.internal.execution.steps.CaptureStateBeforeExecutionStep.execute(CaptureStateBeforeExecutionStep.java:54)
>                 at 
> org.gradle.internal.execution.steps.ValidateStep.execute(ValidateStep.java:74)
>                 at 
> org.gradle.internal.execution.steps.SkipEmptyWorkStep.lambda$execute$2(SkipEmptyWorkStep.java:88)
>                 at java.util.Optional.orElseGet(Optional.java:267)
>                 at 
> org.gradle.internal.execution.steps.SkipEmptyWorkStep.execute(SkipEmptyWorkStep.java:88)
>                 at 
> org.gradle.internal.execution.steps.SkipEmptyWorkStep.execute(SkipEmptyWorkStep.java:34)
>                 at 
> org.gradle.internal.execution.steps.legacy.MarkSnapshottingInputsStartedStep.execute(MarkSnapshottingInputsStartedStep.java:38)
>                 at 
> org.gradle.internal.execution.steps.LoadExecutionStateStep.execute(LoadExecutionStateStep.java:46)
>                 at 
> org.gradle.internal.execution.steps.LoadExecutionStateStep.execute(LoadExecutionStateStep.java:34)
>                 at 
> org.gradle.internal.execution.steps.AssignWorkspaceStep.lambda$execute$0(AssignWorkspaceStep.java:43)
>                 at 
> org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$TaskExecution$3.withWorkspace(ExecuteActionsTaskExecuter.java:286)
>                 at 
> org.gradle.internal.execution.steps.AssignWorkspaceStep.execute(AssignWorkspaceStep.java:43)
>                 at 
> org.gradle.internal.execution.steps.AssignWorkspaceStep.execute(AssignWorkspaceStep.java:33)
>                 at 
> org.gradle.internal.execution.steps.IdentityCacheStep.execute(IdentityCacheStep.java:40)
>                 at 
> org.gradle.internal.execution.steps.IdentityCacheStep.execute(IdentityCacheStep.java:30)
>                 at 
> org.gradle.internal.execution.steps.IdentifyStep.execute(IdentifyStep.java:54)
>                 at 
> org.gradle.internal.execution.steps.IdentifyStep.execute(IdentifyStep.java:40)
>         Execution failed for task ':babel:signBabelPublication':
>             org.gradle.process.internal.ExecException: Process 'command 
> 'gpg'' finished with non-zero exit value 2
>                 at 
> org.gradle.process.internal.DefaultExecHandle$ExecResultImpl.assertNormalExitValue(DefaultExecHandle.java:414)
>                 at 
> org.gradle.process.internal.DefaultExecAction.execute(DefaultExecAction.java:38)
>                 at 
> org.gradle.process.internal.DefaultExecActionFactory.exec(DefaultExecActionFactory.java:175)
>                 at 
> org.gradle.api.internal.project.DefaultProject.exec(DefaultProject.java:1166)
>                 at 
> org.gradle.security.internal.gnupg.GnupgSignatory.sign(GnupgSignatory.java:69)
>                 at 
> org.gradle.plugins.signing.type.AbstractSignatureType.sign(AbstractSignatureType.java:49)
>                 at 
> org.gradle.plugins.signing.type.pgp.ArmoredSignatureType.sign(ArmoredSignatureType.java:40)
>                 at 
> org.gradle.plugins.signing.type.AbstractSignatureType.sign(AbstractSignatureType.java:40)
>                 at 
> org.gradle.plugins.signing.Signature.generate(Signature.java:440)
>                 at org.gradle.plugins.signing.Sign.generate(Sign.java:206)
>                 at 
> org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:104)
>                 at 
> org.gradle.api.internal.project.taskfactory.StandardTaskAction.doExecute(StandardTaskAction.java:58)
>                 at 
> org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:51)
>                 at 
> org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:29)
>                 at 
> org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$2.run(ExecuteActionsTaskExecuter.java:494)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner$1.execute(DefaultBuildOperationRunner.java:29)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner$1.execute(DefaultBuildOperationRunner.java:26)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner$3.execute(DefaultBuildOperationRunner.java:75)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner$3.execute(DefaultBuildOperationRunner.java:68)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:153)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:68)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner.run(DefaultBuildOperationRunner.java:56)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationExecutor.lambda$run$1(DefaultBuildOperationExecutor.java:71)
>                 at 
> org.gradle.internal.operations.UnmanagedBuildOperationWrapper.runWithUnmanagedSupport(UnmanagedBuildOperationWrapper.java:45)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:71)
>                 at 
> org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:479)
>                 at 
> org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:462)
>                 at 
> org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.access$400(ExecuteActionsTaskExecuter.java:105)
>                 at 
> org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$TaskExecution.executeWithPreviousOutputFiles(ExecuteActionsTaskExecuter.java:273)
>                 at 
> org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$TaskExecution.execute(ExecuteActionsTaskExecuter.java:251)
>                 at 
> org.gradle.internal.execution.steps.ExecuteStep.lambda$executeOperation$1(ExecuteStep.java:66)
>                 at java.util.Optional.orElseGet(Optional.java:267)
>                 at 
> org.gradle.internal.execution.steps.ExecuteStep.executeOperation(ExecuteStep.java:66)
>                 at 
> org.gradle.internal.execution.steps.ExecuteStep.access$000(ExecuteStep.java:34)
>                 at 
> org.gradle.internal.execution.steps.ExecuteStep$1.call(ExecuteStep.java:47)
>                 at 
> org.gradle.internal.execution.steps.ExecuteStep$1.call(ExecuteStep.java:44)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:200)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:195)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner$3.execute(DefaultBuildOperationRunner.java:75)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner$3.execute(DefaultBuildOperationRunner.java:68)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:153)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:68)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationRunner.call(DefaultBuildOperationRunner.java:62)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationExecutor.lambda$call$2(DefaultBuildOperationExecutor.java:76)
>                 at 
> org.gradle.internal.operations.UnmanagedBuildOperationWrapper.callWithUnmanagedSupport(UnmanagedBuildOperationWrapper.java:54)
>                 at 
> org.gradle.internal.operations.DefaultBuildOperationExecutor.call(DefaultBuildOperationExecutor.java:76)
>                 at 
> org.gradle.internal.execution.steps.ExecuteStep.execute(ExecuteStep.java:44)
>                 at 
> org.gradle.internal.execution.steps.ExecuteStep.execute(ExecuteStep.java:34)
>                 at 
> org.gradle.internal.execution.steps.RemovePreviousOutputsStep.execute(RemovePreviousOutputsStep.java:72)
>                 at 
> org.gradle.internal.execution.steps.RemovePreviousOutputsStep.execute(RemovePreviousOutputsStep.java:42)
>                 at 
> org.gradle.internal.execution.steps.ResolveInputChangesStep.execute(ResolveInputChangesStep.java:53)
>                 at 
> org.gradle.internal.execution.steps.ResolveInputChangesStep.execute(ResolveInputChangesStep.java:39)
>                 at 
> org.gradle.internal.execution.steps.CancelExecutionStep.execute(CancelExecutionStep.java:44)
>                 at 
> org.gradle.internal.execution.steps.TimeoutStep.executeWithoutTimeout(TimeoutStep.java:77)
>                 at 
> org.gradle.internal.execution.steps.TimeoutStep.execute(TimeoutStep.java:58)
>                 at 
> org.gradle.internal.execution.steps.CreateOutputsStep.execute(CreateOutputsStep.java:54)
>                 at 
> org.gradle.internal.execution.steps.CreateOutputsStep.execute(CreateOutputsStep.java:32)
>                 at 
> org.gradle.internal.execution.steps.CaptureStateAfterExecutionStep.execute(CaptureStateAfterExecutionStep.java:57)
>                 at 
> org.gradle.internal.execution.steps.CaptureStateAfterExecutionStep.execute(CaptureStateAfterExecutionStep.java:38)
>                 at 
> org.gradle.internal.execution.steps.BroadcastChangingOutputsStep.execute(BroadcastChangingOutputsStep.java:63)
>                 at 
> org.gradle.internal.execution.steps.BroadcastChangingOutputsStep.execute(BroadcastChangingOutputsStep.java:30)
>                 at 
> org.gradle.internal.execution.steps.BuildCacheStep.executeWithoutCache(BuildCacheStep.java:176)
>                 at 
> org.gradle.internal.execution.steps.BuildCacheStep.execute(BuildCacheStep.java:76)
>                 at 
> org.gradle.internal.execution.steps.BuildCacheStep.execute(BuildCacheStep.java:47)
>                 at 
> org.gradle.internal.execution.steps.StoreExecutionStateStep.execute(StoreExecutionStateStep.java:43)
>                 at 
> org.gradle.internal.execution.steps.StoreExecutionStateStep.execute(StoreExecutionStateStep.java:32)
>                 at 
> org.gradle.internal.execution.steps.RecordOutputsStep.execute(RecordOutputsStep.java:39)
>                 at 
> org.gradle.internal.execution.steps.RecordOutputsStep.execute(RecordOutputsStep.java:25)
>                 at 
> org.gradle.internal.execution.steps.SkipUpToDateStep.executeBecause(SkipUpToDateStep.java:102)
>                 at 
> org.gradle.internal.execution.steps.SkipUpToDateStep.lambda$execute$0(SkipUpToDateStep.java:95)
>                 at java.util.Optional.map(Optional.java:215)
>                 at 
> org.gradle.internal.execution.steps.SkipUpToDateStep.execute(SkipUpToDateStep.java:55)
>                 at 
> org.gradle.internal.execution.steps.SkipUpToDateStep.execute(SkipUpToDateStep.java:39)
>                 at 
> org.gradle.internal.execution.steps.ResolveChangesStep.execute(ResolveChangesStep.java:83)
>                 at 
> org.gradle.internal.execution.steps.ResolveChangesStep.execute(ResolveChangesStep.java:44)
>                 at 
> org.gradle.internal.execution.steps.legacy.MarkSnapshottingInputsFinishedStep.execute(MarkSnapshottingInputsFinishedStep.java:37)
>                 at 
> org.gradle.internal.execution.steps.legacy.MarkSnapshottingInputsFinishedStep.execute(MarkSnapshottingInputsFinishedStep.java:27)
>                 at 
> org.gradle.internal.execution.steps.ResolveCachingStateStep.execute(ResolveCachingStateStep.java:96)
>                 at 
> org.gradle.internal.execution.steps.ResolveCachingStateStep.execute(ResolveCachingStateStep.java:52)
>                 at 
> org.gradle.internal.execution.steps.CaptureStateBeforeExecutionStep.execute(CaptureStateBeforeExecutionStep.java:83)
>                 at 
> org.gradle.internal.execution.steps.CaptureStateBeforeExecutionStep.execute(CaptureStateBeforeExecutionStep.java:54)
>                 at 
> org.gradle.internal.execution.steps.ValidateStep.execute(ValidateStep.java:74)
>                 at 
> org.gradle.internal.execution.steps.SkipEmptyWorkStep.lambda$execute$2(SkipEmptyWorkStep.java:88)
>                 at java.util.Optional.orElseGet(Optional.java:267)
>                 at 
> org.gradle.internal.execution.steps.SkipEmptyWorkStep.execute(SkipEmptyWorkStep.java:88)
>                 at 
> org.gradle.internal.execution.steps.SkipEmptyWorkStep.execute(SkipEmptyWorkStep.java:34)
>                 at 
> org.gradle.internal.execution.steps.legacy.MarkSnapshottingInputsStartedStep.execute(MarkSnapshottingInputsStartedStep.java:38)
>                 at 
> org.gradle.internal.execution.steps.LoadExecutionStateStep.execute(LoadExecutionStateStep.java:46)
>                 at 
> org.gradle.internal.execution.steps.LoadExecutionStateStep.execute(LoadExecutionStateStep.java:34)
>                 at 
> org.gradle.internal.execution.steps.AssignWorkspaceStep.lambda$execute$0(AssignWorkspaceStep.java:43)
>                 at 
> org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$TaskExecution$3.withWorkspace(ExecuteActionsTaskExecuter.java:286)
>                 at 
> org.gradle.internal.execution.steps.AssignWorkspaceStep.execute(AssignWorkspaceStep.java:43)
>                 at 
> org.gradle.internal.execution.steps.AssignWorkspaceStep.execute(AssignWorkspaceStep.java:33)
>                 at 
> org.gradle.internal.execution.steps.IdentityCacheStep.execute(IdentityCacheStep.java:40)
>                 at 
> org.gradle.internal.execution.steps.IdentityCacheStep.execute(IdentityCacheStep.java:30)
>                 at 
> org.gradle.internal.execution.steps.IdentifyStep.execute(IdentifyStep.java:54)
>                 at 
> org.gradle.internal.execution.steps.IdentifyStep.execute(IdentifyStep.java:40)
> FAILURE: Build completed with 4 failures.
> 1: Task failed with an exception.
> -----------
> * What went wrong:
> Execution failed for task ':druid:signDruidPublication'.
> > Process 'command 'gpg'' finished with non-zero exit value 2
> * 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.
> ==============================================================================
> 2: Task failed with an exception.
> -----------
> * What went wrong:
> Execution failed for task ':mongodb:signMongodbPublication'.
> > Process 'command 'gpg'' finished with non-zero exit value 2
> * 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.
> ==============================================================================
> 3: Task failed with an exception.
> -----------
> * What went wrong:
> Execution failed for task ':core:signCorePublication'.
> > Process 'command 'gpg'' finished with non-zero exit value 2
> * 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.
> ==============================================================================
> 4: Task failed with an exception.
> -----------
> * What went wrong:
> Execution failed for task ':babel:signBabelPublication'.
> > Process 'command 'gpg'' finished with non-zero exit value 2
> * 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
> Deprecated Gradle features were used in this build, making it incompatible 
> with Gradle 7.0.
> Use '--warning-mode all' to show the individual deprecation warnings.
> See 
> https://docs.gradle.org/6.8.3/userguide/command_line_interface.html#sec:command_line_warnings
> BUILD FAILED in 17s
> {noformat}
> According to some other issues online (see list below) it seems that it 
> occurs when there are multiple signing requests with gpg, which is the case 
> here.
>  * [https://github.com/mozilla-services/autograph/issues/333]
>  * [https://github.com/sbt/sbt-pgp/issues/168]



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