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Posted to issues@maven.apache.org by "Paul Benedict (JIRA)" <ji...@codehaus.org> on 2009/11/28 03:47:55 UTC
[jira] Updated: (MNG-4472) [regression] Circular POM not detected
[ http://jira.codehaus.org/browse/MNG-4472?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Paul Benedict updated MNG-4472:
-------------------------------
Attachment: MNG-4472.zip
> [regression] Circular POM not detected
> --------------------------------------
>
> Key: MNG-4472
> URL: http://jira.codehaus.org/browse/MNG-4472
> Project: Maven 2
> Issue Type: Bug
> Components: Reactor and workspace
> Affects Versions: 3.0-alpha-4
> Reporter: Paul Benedict
> Attachments: MNG-4472.zip
>
>
> If I were to specify a project with itself as a parent, Maven 2.2.1 gives this response:
> {code}
> [INFO] Scanning for projects...
> [INFO] ------------------------------------------------------------------------
> [ERROR] FATAL ERROR
> [INFO] ------------------------------------------------------------------------
> [INFO] Error building POM (may not be this project's POM).
> Project ID: org.apache.maven.its.mng:test
> Reason: Parent element is a duplicate of the current project for project org.apache.maven.its.mng:test
> [INFO] ------------------------------------------------------------------------
> [INFO] Trace
> org.apache.maven.reactor.MavenExecutionException: Parent element is a duplicate of the current project for project org.apache.maven.its.mng:test
> at org.apache.maven.DefaultMaven.getProjects(DefaultMaven.java:404)
> at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:272)
> at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:138)
> at org.apache.maven.cli.MavenCli.main(MavenCli.java:362)
> at org.apache.maven.cli.compat.CompatibleMain.main(CompatibleMain.java:60)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
> at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
> at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
> at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
> Caused by: org.apache.maven.project.ProjectBuildingException: Parent element is a duplicate of the current project for project org.apache.maven.its.mng:test
> {code}
> Maven 3 doesn't detect this circularity *immediately*; it tries to download the parent by going through my remote repositories. The end result is still a failure since it can't find itself, but it's a regression since the network is accessed for this use case.
> {code}
> [INFO] Scanning for projects...
> Downloading: http://repo1.maven.org/maven2/org/apache/maven/its/mng/test/0.1/test-0.1.pom
> [ERROR] The build could not read 1 project -> [Help 1]
> [ERROR] The project org.apache.maven.its.mng:test:0.1 (D:\patches\MNG-4472\pom.xml) has 2 errors
> [ERROR] The parent element cannot have the same ID as the project.
> [ERROR] Non-resolvable parent POM org.apache.maven.its.mng:test:0.1 for org.apache.maven.its.mng:test:0.1: Failed to resolve POM for org.apache.maven.its.mng:test:0.1 due to Missing:
> ----------
> 1) org.apache.maven.its.mng:test:pom:0.1
> ----------
> 1 required artifact is missing.
> for artifact:
> org.apache.maven.its.mng:test:pom:0.1
> from the specified remote repositories:
> central (http://repo1.maven.org/maven2, releases=true, snapshots=false)
> -> [Help 2]
> [ERROR]
> [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
> [ERROR] Re-run Maven using the -X switch to enable full debug logging.
> [ERROR]
> [ERROR] For more information about the errors and possible solutions, please read the following articles:
> [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/ProjectBuildingException
> [ERROR] [Help 2] http://cwiki.apache.org/confluence/display/MAVEN/UnresolvableModelException
> {code}
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