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https://issues.apache.org/jira/browse/MASSEMBLY-923?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16996562#comment-16996562
]
Karl Heinz Marbaise edited comment on MASSEMBLY-923 at 12/14/19 9:03 PM:
-------------------------------------------------------------------------
The first thing you see in that build is a WARNING
{code}
[WARNING] The artifact axis:axis-ant:jar:1.4 has been relocated to
org.apache.axis:axis-ant:jar:1.4
{code}
This results that the jar file is not being downloaded to local repository.
In the end this the issue [that the artifact is a
relocation|https://search.maven.org/artifact/axis/axis-ant/1.4/jar] and not a
real artifact.
If you take a look into the [given pom
file|https://repo1.maven.org/maven2/axis/axis-ant/1.4/axis-ant-1.4.pom] which
looks like this:
{code:xml}
<project>
<modelVersion>4.0.0</modelVersion>
<groupId>axis</groupId>
<artifactId>axis-ant</artifactId>
<version>1.4</version>
<distributionManagement>
<relocation>
<groupId>org.apache.axis</groupId>
</relocation>
</distributionManagement>
</project>
{code}
If you change the groupId to the correct one (see WARNING) of the dependency
the given example works perfect.
So the question is: Can we somehow identify such situation in maven assembly
plugin?
was (Author: khmarbaise):
It is caused by that the given [artifact contains an
relocation|https://search.maven.org/artifact/axis/axis-ant/1.4/jar] and not a
real artifact.
If you take a look into the [given pom
file|https://repo1.maven.org/maven2/axis/axis-ant/1.4/axis-ant-1.4.pom] which
looks like this:
{code:xml}
<project>
<modelVersion>4.0.0</modelVersion>
<groupId>axis</groupId>
<artifactId>axis-ant</artifactId>
<version>1.4</version>
<distributionManagement>
<relocation>
<groupId>org.apache.axis</groupId>
</relocation>
</distributionManagement>
</project>
{code}
If you change the groupId of the dependency the given example works perfect.
So the question is: Can we somehow identify such situation in maven assembly
plugin?
> NPE when axis:axis-ant:1.4 is part of dependencySet
> ---------------------------------------------------
>
> Key: MASSEMBLY-923
> URL: https://issues.apache.org/jira/browse/MASSEMBLY-923
> Project: Maven Assembly Plugin
> Issue Type: Bug
> Components: dependencySet
> Affects Versions: 3.1.1, 3.2.0
> Reporter: Václav Haisman
> Priority: Critical
>
> I can reproduce a NPE when axis:axis-ant:1.4 is part of dependencySet. See
> GitHub repository [https://github.com/wilx/maven-assembly-plugin-npe] for
> easy reproduction. Just run mvn clean install. It appears to be caused by the
> POM format of the axis-ant as it is installed in Maven Central. This was
> tested with Maven 3.6.2.
>
> {noformat}
> [ERROR] Failed to execute goal
> org.apache.maven.plugins:maven-assembly-plugin:3.2.0:single (default) on
> project maven-assembly-plugin-npe: Execution default of goal
> org.apache.maven.plugins:maven-assembly-plugin:3.2.0:single failed.:
> NullPointerException -> [Help 1]
> org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute
> goal org.apache.maven.plugins:maven-assembly-plugin:3.2.0:single (default) on
> project maven-assembly-plugin-npe: Execution default of goal
> org.apache.maven.plugins:maven-assembly-plugin:3.2.0:single failed.
> 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:956)
> at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:288)
> at org.apache.maven.cli.MavenCli.main (MavenCli.java:192)
> at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
> at jdk.internal.reflect.NativeMethodAccessorImpl.invoke
> (NativeMethodAccessorImpl.java:62)
> at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke
> (DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke (Method.java:566)
> 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.PluginExecutionException: Execution
> default of goal org.apache.maven.plugins:maven-assembly-plugin:3.2.0:single
> failed.
> at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo
> (DefaultBuildPluginManager.java:148)
> 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:956)
> at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:288)
> at org.apache.maven.cli.MavenCli.main (MavenCli.java:192)
> at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
> at jdk.internal.reflect.NativeMethodAccessorImpl.invoke
> (NativeMethodAccessorImpl.java:62)
> at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke
> (DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke (Method.java:566)
> 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
> at
> org.apache.maven.plugins.assembly.archive.archiver.AssemblyProxyArchiver$DefaultFileInfo.isFile
> (AssemblyProxyArchiver.java:1024)
> at
> org.apache.maven.plugins.assembly.filter.ComponentsXmlArchiverFileFilter.isSelected
> (ComponentsXmlArchiverFileFilter.java:179)
> at
> org.apache.maven.plugins.assembly.archive.archiver.AssemblyProxyArchiver.acceptFile
> (AssemblyProxyArchiver.java:793)
> at
> org.apache.maven.plugins.assembly.archive.archiver.AssemblyProxyArchiver.addFile
> (AssemblyProxyArchiver.java:417)
> at org.apache.maven.plugins.assembly.archive.task.AddArtifactTask.asFile
> (AddArtifactTask.java:175)
> at org.apache.maven.plugins.assembly.archive.task.AddArtifactTask.execute
> (AddArtifactTask.java:132)
> at
> org.apache.maven.plugins.assembly.archive.task.AddDependencySetsTask.addNormalArtifact
> (AddDependencySetsTask.java:263)
> at
> org.apache.maven.plugins.assembly.archive.task.AddDependencySetsTask.addDependencySet
> (AddDependencySetsTask.java:175)
> at
> org.apache.maven.plugins.assembly.archive.task.AddDependencySetsTask.execute
> (AddDependencySetsTask.java:120)
> at
> org.apache.maven.plugins.assembly.archive.phase.DependencySetAssemblyPhase.execute
> (DependencySetAssemblyPhase.java:104)
> at
> org.apache.maven.plugins.assembly.archive.DefaultAssemblyArchiver.createArchive
> (DefaultAssemblyArchiver.java:182)
> at org.apache.maven.plugins.assembly.mojos.AbstractAssemblyMojo.execute
> (AbstractAssemblyMojo.java:488)
> at org.apache.maven.plugins.assembly.mojos.SingleAssemblyMojo.execute
> (SingleAssemblyMojo.java:61)
> 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:956)
> at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:288)
> at org.apache.maven.cli.MavenCli.main (MavenCli.java:192)
> at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
> at jdk.internal.reflect.NativeMethodAccessorImpl.invoke
> (NativeMethodAccessorImpl.java:62)
> at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke
> (DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke (Method.java:566)
> 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)
> {noformat}
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