# After upgrading to Gradle 2.14 we get UncheckedIOException/NPE on install task

**URL:** <https://discuss.gradle.org/t/after-upgrading-to-gradle-2-14-we-get-uncheckedioexception-npe-on-install-task/18144>\
**Category:** Help/Discuss\
**Created:** [June 21, 2016, 2:00pm UTC](https://discuss.gradle.org/t/after-upgrading-to-gradle-2-14-we-get-uncheckedioexception-npe-on-install-task/18144 "2016-06-21T14:00:30Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![marceloverdijk](https://sea1.discourse-cdn.com/gradle/user_avatar/discuss.gradle.org/marceloverdijk/32/4963_2.png) [@marceloverdijk](https://discuss.gradle.org/u/marceloverdijk)\
**Post date:** [June 21, 2016, 2:00pm UTC](https://discuss.gradle.org/t/after-upgrading-to-gradle-2-14-we-get-uncheckedioexception-npe-on-install-task/18144/1 "2016-06-21T14:00:30Z")

</div>

In our project [https://github.com/hawaiifw/hawaii-framework/blob/master/build.gradle](https://github.com/hawaiifw/hawaii-framework/blob/master/build.gradle) we upgraded from Gradle 2.13 to 2.14 and we get a NPE on the install task:

```
* Exception is:
org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':hawaii-test:install'.
        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: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$TaskExecutorWorker.processTask(AbstractTaskPlanExecutor.java:66)
        at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.run(AbstractTaskPlanExecutor.java:50)
        at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor.process(DefaultTaskPlanExecutor.java:25)
        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:99)
        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:48)
        at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:30)
        at org.gradle.launcher.exec.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:81)
        at org.gradle.launcher.exec.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:46)
        at org.gradle.launcher.daemon.server.exec.ExecuteBuild.doBuild(ExecuteBuild.java:52)
        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:37)
        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.health.DaemonHealthTracker.execute(DaemonHealthTracker.java:47)
        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.health.HintGCAfterBuild.execute(HintGCAfterBuild.java:41)
        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$1.run(DaemonStateCoordinator.java:237)
        at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54)
        at org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40)
Caused by: org.gradle.api.artifacts.PublishException: Could not publish configuration 'archives'
        at org.gradle.api.tasks.Upload.upload(Upload.java:66)
        at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:75)
        at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.doExecute(AnnotationProcessingTaskFactory.java:228)
        at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.execute(AnnotationProcessingTaskFactory.java:221)
        at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.execute(AnnotationProcessingTaskFactory.java:210)
        at org.gradle.api.internal.AbstractTask$TaskActionWrapper.execute(AbstractTask.java:621)
        at org.gradle.api.internal.AbstractTask$TaskActionWrapper.execute(AbstractTask.java:604)
        at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:80)
        at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:61)
        ... 68 more
Caused by: org.gradle.api.UncheckedIOException: Could not write to file '/Users/marceloverdijk/workspace/hawaii-framework/hawaii-test/build/poms/pom-default.xml'.
        at org.gradle.internal.IoActions$TextFileWriterIoAction.execute(IoActions.java:132)
        at org.gradle.internal.IoActions$TextFileWriterIoAction.execute(IoActions.java:108)
        at org.gradle.internal.IoActions.writeTextFile(IoActions.java:38)
        at org.gradle.api.publication.maven.internal.pom.DefaultMavenPom.writeTo(DefaultMavenPom.java:190)
        at org.gradle.api.publication.maven.internal.pom.DefaultMavenPom.writeTo(DefaultMavenPom.java:43)
        at org.gradle.api.publication.maven.internal.DefaultArtifactPom.writePom(DefaultArtifactPom.java:56)
        at org.gradle.api.publication.maven.internal.DefaultArtifactPomContainer.createDeployableFilesInfos(DefaultArtifactPomContainer.java:62)
        at org.gradle.api.publication.maven.internal.deployer.AbstractMavenResolver.publish(AbstractMavenResolver.java:97)
        at org.gradle.api.publication.maven.internal.deployer.AbstractMavenResolver.publish(AbstractMavenResolver.java:82)
        at org.gradle.api.publication.maven.internal.deployer.BaseMavenInstaller.publish(BaseMavenInstaller.java:28)
        at org.gradle.api.internal.artifacts.ivyservice.DefaultIvyDependencyPublisher.publish(DefaultIvyDependencyPublisher.java:45)
        at org.gradle.api.internal.artifacts.ivyservice.IvyBackedArtifactPublisher$1.execute(IvyBackedArtifactPublisher.java:80)
        at org.gradle.api.internal.artifacts.ivyservice.IvyBackedArtifactPublisher$1.execute(IvyBackedArtifactPublisher.java:56)
        at org.gradle.internal.Transformers$4.transform(Transformers.java:169)
        at org.gradle.api.internal.artifacts.ivyservice.DefaultIvyContextManager.withIvy(DefaultIvyContextManager.java:61)
        at org.gradle.api.internal.artifacts.ivyservice.DefaultIvyContextManager.withIvy(DefaultIvyContextManager.java:39)
        at org.gradle.api.internal.artifacts.ivyservice.IvyBackedArtifactPublisher.publish(IvyBackedArtifactPublisher.java:56)
        at org.gradle.api.tasks.Upload.upload(Upload.java:64)
        ... 76 more
Caused by: java.lang.NullPointerException
        at org.apache.maven.artifact.versioning.ComparableVersion.parseVersion(ComparableVersion.java:354)
        at org.apache.maven.artifact.versioning.ComparableVersion.<init>(ComparableVersion.java:345)
        at org.apache.maven.artifact.versioning.DefaultArtifactVersion.parseVersion(DefaultArtifactVersion.java:110)
        at org.apache.maven.artifact.versioning.DefaultArtifactVersion.<init>(DefaultArtifactVersion.java:46)
        at org.gradle.api.publication.maven.internal.pom.DefaultPomDependenciesConverter.addMavenDependencies(DefaultPomDependenciesConverter.java:153)
        at org.gradle.api.publication.maven.internal.pom.DefaultPomDependenciesConverter.addFromDependencyDescriptor(DefaultPomDependenciesConverter.java:111)
        at org.gradle.api.publication.maven.internal.pom.DefaultPomDependenciesConverter.convert(DefaultPomDependenciesConverter.java:53)
        at org.gradle.api.publication.maven.internal.pom.DefaultMavenPom.getGeneratedDependencies(DefaultMavenPom.java:159)
        at org.gradle.api.publication.maven.internal.pom.DefaultMavenPom.getEffectivePom(DefaultMavenPom.java:165)
        at org.gradle.api.publication.maven.internal.pom.DefaultMavenPom.writeTo(DefaultMavenPom.java:182)
        at org.gradle.api.publication.maven.internal.pom.DefaultMavenPom$1.execute(DefaultMavenPom.java:192)
        at org.gradle.api.publication.maven.internal.pom.DefaultMavenPom$1.execute(DefaultMavenPom.java:190)
        at org.gradle.internal.IoActions$TextFileWriterIoAction.execute(IoActions.java:127)
        ... 93 more

```

Just to assure we encounter the issue only with Gradle 2.14 I used 2.13 locally and then the install task works fine.

Any idea what is going on?

---

<div class="post-metadata">

**Author:** ![marceloverdijk](https://sea1.discourse-cdn.com/gradle/user_avatar/discuss.gradle.org/marceloverdijk/32/4963_2.png) [@marceloverdijk](https://discuss.gradle.org/u/marceloverdijk)\
**Post date:** [June 23, 2016, 1:43pm UTC](https://discuss.gradle.org/t/after-upgrading-to-gradle-2-14-we-get-uncheckedioexception-npe-on-install-task/18144/2 "2016-06-23T13:43:46Z")

</div>

Note for now I downgraded the Gradle wrapper to 2.13.  
So when using `./gradlew clean install` now works.

When using local Gradle 2.14 using `gradle clean install` the install tasks fails, so this is re-producible.  
I hope somebody knows what is wrong, as we cannot upgrade anymore.

---

<div class="post-metadata">

**Author:** ![eskatos](https://sea1.discourse-cdn.com/gradle/user_avatar/discuss.gradle.org/eskatos/32/5401_2.png) [@eskatos](https://discuss.gradle.org/u/eskatos)\
**Post date:** [June 29, 2016, 6:15pm UTC](https://discuss.gradle.org/t/after-upgrading-to-gradle-2-14-we-get-uncheckedioexception-npe-on-install-task/18144/3 "2016-06-29T18:15:07Z")

</div>

Thanks for your report!  
This is a bug, I’ll look into it.  
Please watch [GRADLE-3494](https://issues.gradle.org/browse/GRADLE-3494) to follow progress.

---

<div class="post-metadata">

**Author:** ![marceloverdijk](https://sea1.discourse-cdn.com/gradle/user_avatar/discuss.gradle.org/marceloverdijk/32/4963_2.png) [@marceloverdijk](https://discuss.gradle.org/u/marceloverdijk)\
**Post date:** [June 30, 2016, 6:51am UTC](https://discuss.gradle.org/t/after-upgrading-to-gradle-2-14-we-get-uncheckedioexception-npe-on-install-task/18144/4 "2016-06-30T06:51:23Z")

</div>

Thanks for the feedback Paul!  
I will watch GRADLE-3494.