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Posted to issues@maven.apache.org by "Guillaume Nodet (Jira)" <ji...@apache.org> on 2023/02/08 09:59:00 UTC

[jira] [Assigned] (MNG-7679) [REGRESSION] Build fails when executing a single mojo without a POM

     [ https://issues.apache.org/jira/browse/MNG-7679?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Guillaume Nodet reassigned MNG-7679:
------------------------------------

    Assignee: Guillaume Nodet

> [REGRESSION] Build fails when executing a single mojo without a POM
> -------------------------------------------------------------------
>
>                 Key: MNG-7679
>                 URL: https://issues.apache.org/jira/browse/MNG-7679
>             Project: Maven
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 3.8.x-candidate, 3.9.0, 3.9.1-candidate, 4.0.0-alpha-4
>         Environment: Linux, MacOS, Windows
>            Reporter: Alexey Venderov
>            Assignee: Guillaume Nodet
>            Priority: Major
>
> Hi,
>  
> When invoking a single mojo, for example,  {{{}install:install-file{}}}, outside of the project directory (no pom in the directory), then the build is failing with {{{}NullPointerException{}}}. 
>  
> Steps to reproduce:
>  # Download maven 3.9: [https://dlcdn.apache.org/maven/maven-3/3.9.0/binaries/apache-maven-3.9.0-bin.zip]
>  # Unzip it to any directory
>  # Create a simple text file  {{echo "foo" > foo.txt}}
>  # Try to install {{foo.txt}} into the local repository: {{./apache-maven-3.9.0/bin/mvn install:install-file -Dfile=foo.txt -DgroupId=com.example -DartifactId=foo -Dversion=1.0.0 -Dpackaging=jar -X}}
> Build fails with the {{{}NullPointerException{}}}: 
>  
> {code:java}
> [INFO] ------------------------------------------------------------------------
> [INFO] BUILD FAILURE
> [INFO] ------------------------------------------------------------------------
> [INFO] Total time:  0.086 s
> [INFO] Finished at: 2023-02-06T11:48:49+01:00
> [INFO] ------------------------------------------------------------------------
> [ERROR] NullPointerException
> java.lang.NullPointerException
>     at org.apache.maven.lifecycle.internal.LifecycleDependencyResolver.getProjectAndSubModules (LifecycleDependencyResolver.java:102)
>     at org.apache.maven.lifecycle.internal.LifecycleDependencyResolver.getProjects (LifecycleDependencyResolver.java:93)
>     at org.apache.maven.lifecycle.internal.MojoExecutor.ensureDependenciesAreResolved (MojoExecutor.java:395)
>     at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:327)
>     at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:213)
>     at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:175)
>     at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:76)
>     at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:163)
>     at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
>     at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:160)
>     at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
>     at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
>     at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
>     at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
>     at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:260)
>     at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:172)
>     at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:100)
>     at org.apache.maven.cli.MavenCli.execute (MavenCli.java:821)
>     at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:270)
>     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)
> [ERROR]
> {code}
>  
> The same operation is successful when using maven 3.8.7 or earlier:
> {code:java}
> 🕙 11:56:50 ➜ mvn --version
> Apache Maven 3.8.7 (b89d5959fcde851dcb1c8946a785a163f14e1e29)
> Maven home: /Users/avenderov/.sdkman/candidates/maven/current
> Java version: 11.0.17, vendor: Azul Systems, Inc., runtime: /Users/avenderov/.asdf/installs/java/zulu-11.60.19/zulu-11.jdk/Contents/Home
> Default locale: en_DE, platform encoding: UTF-8
> OS name: "mac os x", version: "12.6.3", arch: "aarch64", family: "mac"
> ~/tmp/maven-npe 250ms
> 🕙 11:56:54 ➜ mvn install:install-file -Dfile=foo.txt -DgroupId=com.example -DartifactId=foo -Dversion=1.0.0 -Dpackaging=jar
> [INFO] Scanning for projects...
> [INFO]
> [INFO] ------------------< org.apache.maven:standalone-pom >-------------------
> [INFO] Building Maven Stub Project (No POM) 1
> [INFO] --------------------------------[ pom ]---------------------------------
> [INFO]
> [INFO] --- maven-install-plugin:2.4:install-file (default-cli) @ standalone-pom ---
> [INFO] Installing /Users/avenderov/tmp/maven-npe/foo.txt to /Users/avenderov/.m2/repository/com/example/foo/1.0.0/foo-1.0.0.jar
> [INFO] ------------------------------------------------------------------------
> [INFO] BUILD SUCCESS
> [INFO] ------------------------------------------------------------------------
> [INFO] Total time:  0.152 s
> [INFO] Finished at: 2023-02-06T11:57:12+01:00
> [INFO] ------------------------------------------------------------------------
> {code}
>  
> It's also possible to reproduce the issue with the development version of maven.
>  # Checkout maven sources.
>  # Build a new distribution from {{{}master{}}}: {{mvn -DdistributionTargetDir="$HOME/tmp/maven-npe/apache-maven-4.0.x-SNAPSHOT" clean package}}
>  # Repeat steps 3 and 4 from the instruction above. The build fails with the {{NullPointerException}}
>  
> The issue was introduced with the changes from this ticket: https://issues.apache.org/jira/browse/MNG-7672. I tried to build a distribution from this commit {{[https://github.com/apache/maven/commit/4a3c201bfc9ae492c35e300177d950c10e788bd3]}} and it works as expected (the same applies for other branches, {{maven-3.9.x}} and {{{}master{}}}):
> {code:java}
> 12:18:03 ➜ ./apache-maven-3.8.x-SNAPSHOT/bin/mvn --version
> Apache Maven 3.8.8-SNAPSHOT (4a3c201bfc9ae492c35e300177d950c10e788bd3)
> Maven home: /Users/avenderov/tmp/maven-npe/apache-maven-3.8.x-SNAPSHOT
> Java version: 11.0.17, vendor: Azul Systems, Inc., runtime: /Users/avenderov/.asdf/installs/java/zulu-11.60.19/zulu-11.jdk/Contents/Home
> Default locale: en_DE, platform encoding: UTF-8
> OS name: "mac os x", version: "12.6.3", arch: "aarch64", family: "mac"
> ~/tmp/maven-npe 359ms
> 🕙 12:18:16 ➜ ./apache-maven-3.8.x-SNAPSHOT/bin/mvn install:install-file -Dfile=foo.txt -DgroupId=com.example -DartifactId=foo -Dversion=1.0.0 -Dpackaging=jar
> [INFO] Scanning for projects...
> [INFO]
> [INFO] ------------------< org.apache.maven:standalone-pom >-------------------
> [INFO] Building Maven Stub Project (No POM) 1
> [INFO] --------------------------------[ pom ]---------------------------------
> [INFO]
> [INFO] --- maven-install-plugin:2.4:install-file (default-cli) @ standalone-pom ---
> [INFO] Installing /Users/avenderov/tmp/maven-npe/foo.txt to /Users/avenderov/.m2/repository/com/example/foo/1.0.0/foo-1.0.0.jar
> [INFO] ------------------------------------------------------------------------
> [INFO] BUILD SUCCESS
> [INFO] ------------------------------------------------------------------------
> [INFO] Total time:  0.150 s
> [INFO] Finished at: 2023-02-06T12:18:32+01:00
> [INFO] ------------------------------------------------------------------------
> {code}



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