[
https://issues.apache.org/jira/browse/MNG-7679?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Alexey Venderov updated MNG-7679:
---------------------------------
Summary: Build fails when executing a single mojo without a POM (was:
Build fails when executing a single mojo without having a POM)
> 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
> 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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