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Posted to issues@maven.apache.org by "Konrad Windszus (Jira)" <ji...@apache.org> on 2022/01/08 12:24:00 UTC
[jira] [Commented] (MPLUGIN-384) Cannot invoke "String.equals(Object)" because the return value of "org.apache.maven.artifact.repository.metadata.Plugin.getPrefix()" is null
[ https://issues.apache.org/jira/browse/MPLUGIN-384?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17471118#comment-17471118 ]
Konrad Windszus commented on MPLUGIN-384:
-----------------------------------------
I don’t think this is related to m-plugin-p but rather a bug in staging-m-p. See the details in MNG-7375.
> Cannot invoke "String.equals(Object)" because the return value of "org.apache.maven.artifact.repository.metadata.Plugin.getPrefix()" is null
> --------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: MPLUGIN-384
> URL: https://issues.apache.org/jira/browse/MPLUGIN-384
> Project: Maven Plugin Tools
> Issue Type: Bug
> Components: Plugin Plugin
> Affects Versions: 3.6.2
> Environment: Windows 10 64-bit, Java 8 and 17, maven 3.8.1
> Reporter: Bob Marinier
> Priority: Major
>
> Version 3.6.1 of maven-plugin-plugin worked fine, but since updating to version 3.6.2, I get an NPE (tested with Java 8 and Java 17). I believe the error in both Java 8 and Java 17 is the same, but Java 17 gives a better message (see below). Even though it's the nexus-staging-maven-plugin that is complaining, the message implies that the maven-plugin-plugin is somehow failing to extract the prefix from the plugin. Going back to maven-plugin-plugin version 3.6.1 fixes the issue.
> {{[ERROR] Failed to execute goal org.sonatype.plugins:nexus-staging-maven-plugin:1.6.8:deploy (injected-nexus-deploy) on project my-maven-plugin: Failed to update metadata my.group.id/maven-metadata.xml: Cannot invoke "String.equals(Object)" because the return value of "org.apache.maven.artifact.repository.metadata.Plugin.getPrefix()" is null -> [Help 1]}}
> {{org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.sonatype.plugins:nexus-staging-maven-plugin:1.6.8:deploy (injected-nexus-deploy) on project my-maven-plugin: Failed to update metadata my.group.id/maven-metadata.xml: Cannot invoke "String.equals(Object)" because the return value of "org.apache.maven.artifact.repository.metadata.Plugin.getPrefix()" is null}}
> {{ at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:215)}}
> {{ at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:156)}}
> {{ at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:148)}}
> {{ at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117)}}
> {{ at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)}}
> {{ at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56)}}
> {{ at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)}}
> {{ at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)}}
> {{ at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)}}
> {{ at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)}}
> {{ at org.apache.maven.cli.MavenCli.execute (MavenCli.java:972)}}
> {{ at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:293)}}
> {{ at org.apache.maven.cli.MavenCli.main (MavenCli.java:196)}}
> {{ at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)}}
> {{ at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)}}
> {{ at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)}}
> {{ at java.lang.reflect.Method.invoke (Method.java:568)}}
> {{ at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282)}}
> {{ at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225)}}
> {{ at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406)}}
> {{ at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)}}
> {{Caused by: org.apache.maven.plugin.MojoExecutionException: Failed to update metadata my.group.id/maven-metadata.xml: Cannot invoke "String.equals(Object)" because the return value of "org.apache.maven.artifact.repository.metadata.Plugin.getPrefix()" is null}}
> {{ at org.sonatype.nexus.maven.staging.deploy.DeployMojo.execute (DeployMojo.java:216)}}
> {{ at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137)}}
> {{ at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:210)}}
> {{ at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:156)}}
> {{ at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:148)}}
> {{ at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117)}}
> {{ at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)}}
> {{ at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56)}}
> {{ at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)}}
> {{ at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)}}
> {{ at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)}}
> {{ at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)}}
> {{ at org.apache.maven.cli.MavenCli.execute (MavenCli.java:972)}}
> {{ at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:293)}}
> {{ at org.apache.maven.cli.MavenCli.main (MavenCli.java:196)}}
> {{ at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)}}
> {{ at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)}}
> {{ at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)}}
> {{ at java.lang.reflect.Method.invoke (Method.java:568)}}
> {{ at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282)}}
> {{ at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225)}}
> {{ at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406)}}
> {{ at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)}}
> {{Caused by: org.apache.maven.artifact.deployer.ArtifactDeploymentException: Failed to update metadata my.group.id/maven-metadata.xml: Cannot invoke "String.equals(Object)" because the return value of "org.apache.maven.artifact.repository.metadata.Plugin.getPrefix()" is null}}
> {{ at org.apache.maven.artifact.deployer.DefaultArtifactDeployer.deploy (DefaultArtifactDeployer.java:146)}}
> {{ at org.sonatype.nexus.maven.staging.deploy.strategy.AbstractDeployStrategy.deployUp (AbstractDeployStrategy.java:213)}}
> {{ at org.sonatype.nexus.maven.staging.deploy.strategy.DeferredDeployStrategy.finalizeDeploy (DeferredDeployStrategy.java:86)}}
> {{ at org.sonatype.nexus.maven.staging.deploy.DeployMojo.execute (DeployMojo.java:213)}}
> {{ at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137)}}
> {{ at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:210)}}
> {{ at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:156)}}
> {{ at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:148)}}
> {{ at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117)}}
> {{ at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)}}
> {{ at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56)}}
> {{ at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)}}
> {{ at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)}}
> {{ at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)}}
> {{ at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)}}
> {{ at org.apache.maven.cli.MavenCli.execute (MavenCli.java:972)}}
> {{ at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:293)}}
> {{ at org.apache.maven.cli.MavenCli.main (MavenCli.java:196)}}
> {{ at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)}}
> {{ at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)}}
> {{ at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)}}
> {{ at java.lang.reflect.Method.invoke (Method.java:568)}}
> {{ at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282)}}
> {{ at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225)}}
> {{ at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406)}}
> {{ at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)}}
> {{Caused by: org.eclipse.aether.deployment.DeploymentException: Failed to update metadata my.group.id/maven-metadata.xml: Cannot invoke "String.equals(Object)" because the return value of "org.apache.maven.artifact.repository.metadata.Plugin.getPrefix()" is null}}
> {{ at org.eclipse.aether.internal.impl.DefaultDeployer.upload (DefaultDeployer.java:437)}}
> {{ at org.eclipse.aether.internal.impl.DefaultDeployer.deploy (DefaultDeployer.java:321)}}
> {{ at org.eclipse.aether.internal.impl.DefaultDeployer.deploy (DefaultDeployer.java:213)}}
> {{ at org.eclipse.aether.internal.impl.DefaultRepositorySystem.deploy (DefaultRepositorySystem.java:386)}}
> {{ at org.apache.maven.artifact.deployer.DefaultArtifactDeployer.deploy (DefaultArtifactDeployer.java:142)}}
> {{ at org.sonatype.nexus.maven.staging.deploy.strategy.AbstractDeployStrategy.deployUp (AbstractDeployStrategy.java:213)}}
> {{ at org.sonatype.nexus.maven.staging.deploy.strategy.DeferredDeployStrategy.finalizeDeploy (DeferredDeployStrategy.java:86)}}
> {{ at org.sonatype.nexus.maven.staging.deploy.DeployMojo.execute (DeployMojo.java:213)}}
> {{ at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137)}}
> {{ at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:210)}}
> {{ at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:156)}}
> {{ at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:148)}}
> {{ at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117)}}
> {{ at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)}}
> {{ at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56)}}
> {{ at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)}}
> {{ at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)}}
> {{ at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)}}
> {{ at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)}}
> {{ at org.apache.maven.cli.MavenCli.execute (MavenCli.java:972)}}
> {{ at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:293)}}
> {{ at org.apache.maven.cli.MavenCli.main (MavenCli.java:196)}}
> {{ at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)}}
> {{ at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)}}
> {{ at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)}}
> {{ at java.lang.reflect.Method.invoke (Method.java:568)}}
> {{ at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282)}}
> {{ at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225)}}
> {{ at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406)}}
> {{ at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)}}
> {{Caused by: org.eclipse.aether.RepositoryException: Cannot invoke "String.equals(Object)" because the return value of "org.apache.maven.artifact.repository.metadata.Plugin.getPrefix()" is null}}
> {{ at org.apache.maven.artifact.repository.metadata.MetadataBridge.merge (MetadataBridge.java:70)}}
> {{ at org.eclipse.aether.internal.impl.DefaultDeployer.upload (DefaultDeployer.java:433)}}
> {{ at org.eclipse.aether.internal.impl.DefaultDeployer.deploy (DefaultDeployer.java:321)}}
> {{ at org.eclipse.aether.internal.impl.DefaultDeployer.deploy (DefaultDeployer.java:213)}}
> {{ at org.eclipse.aether.internal.impl.DefaultRepositorySystem.deploy (DefaultRepositorySystem.java:386)}}
> {{ at org.apache.maven.artifact.deployer.DefaultArtifactDeployer.deploy (DefaultArtifactDeployer.java:142)}}
> {{ at org.sonatype.nexus.maven.staging.deploy.strategy.AbstractDeployStrategy.deployUp (AbstractDeployStrategy.java:213)}}
> {{ at org.sonatype.nexus.maven.staging.deploy.strategy.DeferredDeployStrategy.finalizeDeploy (DeferredDeployStrategy.java:86)}}
> {{ at org.sonatype.nexus.maven.staging.deploy.DeployMojo.execute (DeployMojo.java:213)}}
> {{ at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137)}}
> {{ at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:210)}}
> {{ at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:156)}}
> {{ at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:148)}}
> {{ at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117)}}
> {{ at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)}}
> {{ at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56)}}
> {{ at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)}}
> {{ at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)}}
> {{ at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)}}
> {{ at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)}}
> {{ at org.apache.maven.cli.MavenCli.execute (MavenCli.java:972)}}
> {{ at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:293)}}
> {{ at org.apache.maven.cli.MavenCli.main (MavenCli.java:196)}}
> {{ at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)}}
> {{ at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)}}
> {{ at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)}}
> {{ at java.lang.reflect.Method.invoke (Method.java:568)}}
> {{ at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282)}}
> {{ at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225)}}
> {{ at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406)}}
> {{ at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)}}
> {{Caused by: java.lang.NullPointerException: Cannot invoke "String.equals(Object)" because the return value of "org.apache.maven.artifact.repository.metadata.Plugin.getPrefix()" is null}}
> {{ at org.apache.maven.artifact.repository.metadata.Metadata.merge (Metadata.java:276)}}
> {{ at org.apache.maven.artifact.repository.metadata.AbstractRepositoryMetadata.updateRepositoryMetadata (AbstractRepositoryMetadata.java:121)}}
> {{ at org.apache.maven.artifact.repository.metadata.AbstractRepositoryMetadata.storeInLocalRepository (AbstractRepositoryMetadata.java:67)}}
> {{ at org.apache.maven.artifact.repository.metadata.MetadataBridge.merge (MetadataBridge.java:65)}}
> {{ at org.eclipse.aether.internal.impl.DefaultDeployer.upload (DefaultDeployer.java:433)}}
> {{ at org.eclipse.aether.internal.impl.DefaultDeployer.deploy (DefaultDeployer.java:321)}}
> {{ at org.eclipse.aether.internal.impl.DefaultDeployer.deploy (DefaultDeployer.java:213)}}
> {{ at org.eclipse.aether.internal.impl.DefaultRepositorySystem.deploy (DefaultRepositorySystem.java:386)}}
> {{ at org.apache.maven.artifact.deployer.DefaultArtifactDeployer.deploy (DefaultArtifactDeployer.java:142)}}
> {{ at org.sonatype.nexus.maven.staging.deploy.strategy.AbstractDeployStrategy.deployUp (AbstractDeployStrategy.java:213)}}
> {{ at org.sonatype.nexus.maven.staging.deploy.strategy.DeferredDeployStrategy.finalizeDeploy (DeferredDeployStrategy.java:86)}}
> {{ at org.sonatype.nexus.maven.staging.deploy.DeployMojo.execute (DeployMojo.java:213)}}
> {{ at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137)}}
> {{ at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:210)}}
> {{ at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:156)}}
> {{ at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:148)}}
> {{ at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117)}}
> {{ at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)}}
> {{ at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56)}}
> {{ at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)}}
> {{ at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)}}
> {{ at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)}}
> {{ at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)}}
> {{ at org.apache.maven.cli.MavenCli.execute (MavenCli.java:972)}}
> {{ at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:293)}}
> {{ at org.apache.maven.cli.MavenCli.main (MavenCli.java:196)}}
> {{ at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)}}
> {{ at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:77)}}
> {{ at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)}}
> {{ at java.lang.reflect.Method.invoke (Method.java:568)}}
> {{ at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282)}}
> {{ at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225)}}
> {{ at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406)}}
> {{ at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)}}
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