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https://issues.apache.org/jira/browse/ARCHETYPE-531?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Elliotte Rusty Harold resolved ARCHETYPE-531.
---------------------------------------------
Resolution: Fixed
> NullPointerException when module not specified or config empty in EAR plugin
> ----------------------------------------------------------------------------
>
> Key: ARCHETYPE-531
> URL: https://issues.apache.org/jira/browse/ARCHETYPE-531
> Project: Maven Archetype
> Issue Type: Bug
> Components: Creator
> Affects Versions: 3.0.1
> Reporter: Klemen
> Priority: Major
> Fix For: 3.2.1
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Missing <modules> tag in ear config causes null pointer. pom sample:
> {code:java}
> <build>
> <pluginManagement>
> <plugins>
> <plugin>
> <groupId>org.apache.maven.plugins</groupId>
> <artifactId>maven-ear-plugin</artifactId>
> <version>${ear.plugin}</version>
> <configuration>
> <version>7</version>
> <fileNameMapping>no-version</fileNameMapping>
> </configuration>
> </plugin>
> ...
> {code}
> Stacktrace after adding e.printStackTrace(); to FilesetArchetypeCreator, line
> 303:
> {code:java}
> java.lang.NullPointerException
> at
> org.apache.maven.archetype.creator.FilesetArchetypeCreator.rewriteEARPluginReferences(FilesetArchetypeCreator.java:721)
> at
> org.apache.maven.archetype.creator.FilesetArchetypeCreator.rewritePluginReferences(FilesetArchetypeCreator.java:712)
> at
> org.apache.maven.archetype.creator.FilesetArchetypeCreator.rewriteReferences(FilesetArchetypeCreator.java:619)
> at
> org.apache.maven.archetype.creator.FilesetArchetypeCreator.createArchetypePom(FilesetArchetypeCreator.java:908)
> at
> org.apache.maven.archetype.creator.FilesetArchetypeCreator.createPoms(FilesetArchetypeCreator.java:573)
> at
> org.apache.maven.archetype.creator.FilesetArchetypeCreator.createArchetype(FilesetArchetypeCreator.java:241)
> at
> org.apache.maven.archetype.DefaultArchetypeManager.createArchetypeFromProject(DefaultArchetypeManager.java:64)
> at
> org.apache.maven.archetype.mojos.CreateArchetypeFromProjectMojo.execute(CreateArchetypeFromProjectMojo.java:257)
> at
> org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
> at
> org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:207)
> at
> org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
> at
> org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
> at
> org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116)
> at
> org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
> at
> org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
> at
> org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
> at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307)
> at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
> at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
> at org.apache.maven.cli.MavenCli.execute(MavenCli.java:863)
> at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288)
> at org.apache.maven.cli.MavenCli.main(MavenCli.java:199)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498)
> at
> org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
> at
> org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
> at
> org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
> at
> org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
> {code}
> In same file on line 303, I believe catching any Exception and rethrowing a
> MojoFailureException is not really helpful to anyone since it hides the
> actual cause and you have to dig deep into the code to find it. At least it
> should be made more verbose. This is what is being thrown:
> {code:java}
> org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute
> goal
> org.apache.maven.plugins:maven-archetype-plugin:3.0.1:create-from-project
> (default-cli) on project myproject-was: null
> at
> org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:212)
> at
> org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
> at
> org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
> at
> org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116)
> at
> org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
> at
> org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
> at
> org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
> at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307)
> at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
> at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
> at org.apache.maven.cli.MavenCli.execute(MavenCli.java:863)
> at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288)
> at org.apache.maven.cli.MavenCli.main(MavenCli.java:199)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498)
> at
> org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
> at
> org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
> at
> org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
> at
> org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
> Caused by: org.apache.maven.plugin.MojoFailureException
> at
> org.apache.maven.archetype.mojos.CreateArchetypeFromProjectMojo.execute(CreateArchetypeFromProjectMojo.java:262)
> at
> org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
> at
> org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:207)
> ... 20 more
> {code}
> Similar reference form 2 years ago:
> https://myshittycode.com/2015/08/05/maven-archetype-plugin-failed-to-execute-goal-org-apache-maven-pluginsmaven-archetype-plugin2-3create-from-project/
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