SpringBoot Upgrade to Spring Boot Version 2.2.12 RELEASE is failing with NPE in our service's integration-test module

Comment From: nithyasubbu123

As part of upgrading software libraries with Spring Boot such as Spring Boot Starter Jetty, Jackson Databind, Http Client etc, we wanted to upgrade the Spring Boot version to 2.2.12 RELEASE from 2.2.9 RELEASE. On doing so, we see that our monolith service fails with integration-tests failing with NPE. (find the exception given below)

After upgrading the spring boot version and ingesting the same in our monolith service, the service failed with Null Pointer Exception. The upgrade works with the some sample light weight services and passes the integration tests.

Caused by: java.lang.NullPointerException
        at io.spring.gradle.dependencymanagement.internal.Exclusion.hashCode(Exclusion.java:60)
        at io.spring.gradle.dependencymanagement.internal.maven.MavenPomResolver.createDependency(MavenPomResolver.java:156)
        at io.spring.gradle.dependencymanagement.internal.maven.MavenPomResolver.getDependencies(MavenPomResolver.java:170)
        at io.spring.gradle.dependencymanagement.internal.maven.MavenPomResolver.createPom(MavenPomResolver.java:137)
        at io.spring.gradle.dependencymanagement.internal.maven.MavenPomResolver.createPoms(MavenPomResolver.java:128)
        at io.spring.gradle.dependencymanagement.internal.maven.MavenPomResolver.resolvePomsLeniently(MavenPomResolver.java:79)
        at io.spring.gradle.dependencymanagement.internal.ExclusionResolver.resolveExclusions(ExclusionResolver.java:78)
        at io.spring.gradle.dependencymanagement.internal.ExclusionConfiguringAction.findExcludedDependencies(ExclusionConfiguringAction.java:137)
        at io.spring.gradle.dependencymanagement.internal.ExclusionConfiguringAction.applyMavenExclusions(ExclusionConfiguringAction.java:86)
        at io.spring.gradle.dependencymanagement.internal.ExclusionConfiguringAction.execute(ExclusionConfiguringAction.java:81)
        at io.spring.gradle.dependencymanagement.internal.ExclusionConfiguringAction.execute(ExclusionConfiguringAction.java:50)
        at org.gradle.configuration.internal.DefaultUserCodeApplicationContext$2.execute(DefaultUserCodeApplicationContext.java:77)
        at org.gradle.internal.event.BroadcastDispatch$ActionInvocationHandler.dispatch(BroadcastDispatch.java:91)
        at org.gradle.internal.event.BroadcastDispatch$ActionInvocationHandler.dispatch(BroadcastDispatch.java:80)
        at org.gradle.internal.event.AbstractBroadcastDispatch.dispatch(AbstractBroadcastDispatch.java:42)
        at org.gradle.internal.event.BroadcastDispatch$SingletonDispatch.dispatch(BroadcastDispatch.java:230)
        at org.gradle.internal.event.BroadcastDispatch$SingletonDispatch.dispatch(BroadcastDispatch.java:149)
        at org.gradle.internal.event.AbstractBroadcastDispatch.dispatch(AbstractBroadcastDispatch.java:58)
        at org.gradle.internal.event.BroadcastDispatch$CompositeDispatch.dispatch(BroadcastDispatch.java:324)
        at org.gradle.internal.event.BroadcastDispatch$CompositeDispatch.dispatch(BroadcastDispatch.java:234)
        at org.gradle.internal.event.ListenerBroadcast.dispatch(ListenerBroadcast.java:140)
        at org.gradle.internal.event.ListenerBroadcast.dispatch(ListenerBroadcast.java:37)
        at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)
        at com.sun.proxy.$Proxy32.beforeResolve(Unknown Source)
        at org.gradle.api.internal.artifacts.configurations.DefaultConfiguration.performPreResolveActions(DefaultConfiguration.java:634)
        at org.gradle.api.internal.artifacts.configurations.DefaultConfiguration.access$800(DefaultConfiguration.java:136)
        at org.gradle.api.internal.artifacts.configurations.DefaultConfiguration$7.run(DefaultConfiguration.java:579)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:402)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:394)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor$1.execute(DefaultBuildOperationExecutor.java:165)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:250)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:158)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:92)
        at org.gradle.internal.operations.DelegatingBuildOperationExecutor.run(DelegatingBuildOperationExecutor.java:31)
        at org.gradle.api.internal.artifacts.configurations.DefaultConfiguration.resolveGraphIfRequired(DefaultConfiguration.java:572)
        at org.gradle.api.internal.artifacts.configurations.DefaultConfiguration.access$600(DefaultConfiguration.java:136)
        at org.gradle.api.internal.artifacts.configurations.DefaultConfiguration$6.run(DefaultConfiguration.java:552)
        at org.gradle.api.internal.project.DefaultProjectStateRegistry$SafeExclusiveLockImpl.withLock(DefaultProjectStateRegistry.java:244)
        at org.gradle.api.internal.artifacts.configurations.DefaultConfiguration.resolveExclusively(DefaultConfiguration.java:548)
        at org.gradle.api.internal.artifacts.configurations.DefaultConfiguration.resolveToStateOrLater(DefaultConfiguration.java:543)
        at org.gradle.api.internal.artifacts.configurations.DefaultConfiguration.access$2200(DefaultConfiguration.java:136)
        at org.gradle.api.internal.artifacts.configurations.DefaultConfiguration$ConfigurationFileCollection.getSelectedArtifacts(DefaultConfiguration.java:1159)
        at org.gradle.api.internal.artifacts.configurations.DefaultConfiguration$ConfigurationFileCollection.getFiles(DefaultConfiguration.java:1148)
        at org.gradle.api.internal.file.AbstractFileCollection.iterator(AbstractFileCollection.java:72)
        at org.gradle.api.internal.artifacts.configurations.DefaultConfiguration.iterator(DefaultConfiguration.java:463)
        at org.gradle.internal.snapshot.impl.DefaultFileSystemSnapshotter$FileCollectionLeafVisitorImpl.visitCollection(DefaultFileSystemSnapshotter.java:240)
        at org.gradle.api.internal.file.AbstractFileCollection.visitLeafCollections(AbstractFileCollection.java:233)
        at org.gradle.api.internal.file.CompositeFileCollection.visitLeafCollections(CompositeFileCollection.java:205)
        at org.gradle.internal.snapshot.impl.DefaultFileSystemSnapshotter.snapshot(DefaultFileSystemSnapshotter.java:126)
        at org.gradle.internal.fingerprint.impl.AbstractFileCollectionFingerprinter.fingerprint(AbstractFileCollectionFingerprinter.java:47)
        at org.gradle.internal.fingerprint.classpath.impl.DefaultCompileClasspathFingerprinter.fingerprint(DefaultCompileClasspathFingerprinter.java:45)
        at org.gradle.api.internal.tasks.execution.DefaultTaskFingerprinter.fingerprintTaskFiles(DefaultTaskFingerprinter.java:46)
        at org.gradle.api.internal.tasks.execution.ResolveBeforeExecutionStateTaskExecuter.createExecutionState(ResolveBeforeExecutionStateTaskExecuter.java:92)
        at org.gradle.api.internal.tasks.execution.ResolveBeforeExecutionStateTaskExecuter.execute(ResolveBeforeExecutionStateTaskExecuter.java:72)
        at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:58)
        at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:109)
        at org.gradle.api.internal.tasks.execution.ResolveBeforeExecutionOutputsTaskExecuter.execute(ResolveBeforeExecutionOutputsTaskExecuter.java:67)
        at org.gradle.api.internal.tasks.execution.ResolveAfterPreviousExecutionStateTaskExecuter.execute(ResolveAfterPreviousExecutionStateTaskExecuter.java:46)
        at org.gradle.api.internal.tasks.execution.CleanupStaleOutputsExecuter.execute(CleanupStaleOutputsExecuter.java:93)
        at org.gradle.api.internal.tasks.execution.FinalizePropertiesTaskExecuter.execute(FinalizePropertiesTaskExecuter.java:45)
        at org.gradle.api.internal.tasks.execution.ResolveTaskExecutionModeExecuter.execute(ResolveTaskExecutionModeExecuter.java:94)
        at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:57)
        at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:56)
        at org.gradle.api.internal.tasks.execution.CatchExceptionTaskExecuter.execute(CatchExceptionTaskExecuter.java:36)
        ... 24 more

Comment From: snicoll

@nithyasubbu123 thanks for the report but the NPE occurs in the dependency management plugin that is managed in a dedicated repository.

Comment From: snicoll

@nithyasubbu123 actually no need to open an issue as there is one already. Please subscribe to https://github.com/spring-gradle-plugins/dependency-management-plugin/issues/293.