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https://issues.apache.org/jira/browse/MNG-7318?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Michael Osipov closed MNG-7318.
-------------------------------
Fix Version/s: 3.8.1
Assignee: Sylwester Lachiewicz
Resolution: Fixed
Implicitly fixed with MNG-6819.
> NullPointerException during mvn install when property is called
> "project.version"
> ---------------------------------------------------------------------------------
>
> Key: MNG-7318
> URL: https://issues.apache.org/jira/browse/MNG-7318
> Project: Maven
> Issue Type: Bug
> Components: Command Line, Inheritance and Interpolation
> Affects Versions: 3.6.3
> Environment: Apache Maven 3.6.3
> Maven home: /usr/share/maven
> Java version: 1.8.0_221, vendor: Oracle Corporation, runtime:
> /usr/lib/jvm/jdk1.8.0_221/jre
> Default locale: en_US, platform encoding: UTF-8
> OS name: "linux", version: "5.11.0-38-generic", arch: "amd64", family: "unix"
> Reporter: Daniel Langerenken
> Assignee: Sylwester Lachiewicz
> Priority: Major
> Fix For: 3.8.1
>
>
> Use the following (simplified) pom.xml and run mvn install:
> {code:java}
> <?xml version="1.0" encoding="UTF-8"?>
> <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
> xmlns="http://maven.apache.org/POM/4.0.0";
> xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
> http://maven.apache.org/maven-v4_0_0.xsd";>
> <modelVersion>4.0.0</modelVersion>
> <groupId>org.example</groupId>
> <artifactId>foo</artifactId>
> <version>${revision}</version>
> <properties>
> <project.version>1.0</project.version>
> <revision>${project.version}</revision>
> </properties>
> </project>{code}
> It will throw the following exception:
> {code:java}
> [ERROR] Internal error: java.lang.NullPointerException -> [Help 1]
> org.apache.maven.InternalErrorException: Internal error:
> java.lang.NullPointerException
> at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:120)
> at org.apache.maven.cli.MavenCli.execute (MavenCli.java:957)
> at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:289)
> at org.apache.maven.cli.MavenCli.main (MavenCli.java:193)
> 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: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 java.util.Hashtable$Entry.setValue (Hashtable.java:1286)
> at
> org.apache.maven.model.interpolation.StringVisitorModelInterpolator$ModelVisitor.visit
> (StringVisitorModelInterpolator.java:1429)
> at
> org.apache.maven.model.interpolation.StringVisitorModelInterpolator$ModelVisitor.visit
> (StringVisitorModelInterpolator.java:1027)
> at
> org.apache.maven.model.interpolation.StringVisitorModelInterpolator$ModelVisitor.visit
> (StringVisitorModelInterpolator.java:170)
> at
> org.apache.maven.model.interpolation.StringVisitorModelInterpolator.interpolateModel
> (StringVisitorModelInterpolator.java:107)
> at org.apache.maven.model.building.DefaultModelBuilder.interpolateModel
> (DefaultModelBuilder.java:789)
> at org.apache.maven.model.building.DefaultModelBuilder.build
> (DefaultModelBuilder.java:393)
> at org.apache.maven.project.DefaultProjectBuilder.build
> (DefaultProjectBuilder.java:448)
> at org.apache.maven.project.DefaultProjectBuilder.build
> (DefaultProjectBuilder.java:414)
> at org.apache.maven.project.DefaultProjectBuilder.build
> (DefaultProjectBuilder.java:377)
> at org.apache.maven.graph.DefaultGraphBuilder.collectProjects
> (DefaultGraphBuilder.java:414)
> at org.apache.maven.graph.DefaultGraphBuilder.getProjectsForMavenReactor
> (DefaultGraphBuilder.java:405)
> at org.apache.maven.graph.DefaultGraphBuilder.build
> (DefaultGraphBuilder.java:82)
> at org.apache.maven.DefaultMaven.buildGraph (DefaultMaven.java:507)
> at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:219)
> 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:957)
> at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:289)
> at org.apache.maven.cli.MavenCli.main (MavenCli.java:193){code}
> This is only happening when I name the property `*project.version*`
> indicating that this might be an illegal name. I can switch it to
> `*project.ver*` and it works fine.
> This should not throw a NullPointerException but instead either work or throw
> an appropriate exception.
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