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Posted to issues@maven.apache.org by "Frank Adcock (JIRA)" <ji...@codehaus.org> on 2008/06/03 22:05:54 UTC
[jira] Reopened: (ARCHETYPE-177) NullPointerException generating
archetype when mirrors are in settings.xml
[ http://jira.codehaus.org/browse/ARCHETYPE-177?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Frank Adcock reopened ARCHETYPE-177:
------------------------------------
Why is this not a defect.
As a user you receive a null pointer exception because of something missing in the settings.xml file.
At the very least you should receive an error message indicating the problem. If you can have a situation where the mirrorOf setting is optional, then it should not be throwing a null pointer exception but handling it better.
To my mind there is a problem, whether the priority needs to be adjusted to suit the impact, but certainly the way it is it takes a considerable amount of time to figure out what the problem is, and it is not necessarily obvious that the mirrorOf field is the problem.
> NullPointerException generating archetype when mirrors are in settings.xml
> --------------------------------------------------------------------------
>
> Key: ARCHETYPE-177
> URL: http://jira.codehaus.org/browse/ARCHETYPE-177
> Project: Maven Archetype
> Issue Type: Bug
> Components: Archetypes, Generator
> Environment: Windows XP Pro
> Reporter: Frank Adcock
>
> When attempting to generate any archetype from the mvn archetype:generate command I get a null pointer exception thrown if I have mirrors defined in my settings.xml file. I believe there is a related issue where mvn package will also get a null pointer exception if a repository specified in the project pom does not have a matching mirror id in the settings.xml. However, the stack trace for the archetype generation is:
> Choose a number: (1/2/3/4/5/6/7/8/9/10/11/12/13/14/15/16/17/18/19/20/21/22/23/2
> 4/25/26/27/28/29/30/31/32/33/34/35/36/37/38/39/40/41/42/43/44) 15: : 6
> [INFO] ------------------------------------------------------------------------
> [ERROR] BUILD FAILURE
> [INFO] ------------------------------------------------------------------------
> [INFO] : java.lang.NullPointerException
> null
> [INFO] ------------------------------------------------------------------------
> [INFO] Trace
> org.apache.maven.BuildFailureException
> at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(Defa
> ultLifecycleExecutor.java:579)
> at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeStandalone
> Goal(DefaultLifecycleExecutor.java:512)
> at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(Defau
> ltLifecycleExecutor.java:482)
> at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHan
> dleFailures(DefaultLifecycleExecutor.java:330)
> at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegmen
> ts(DefaultLifecycleExecutor.java:227)
> at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLi
> fecycleExecutor.java:142)
> at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:336)
> at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:129)
> at org.apache.maven.cli.MavenCli.main(MavenCli.java:287)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
> java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
> sorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:585)
> 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.plugin.MojoFailureException
> at org.apache.maven.archetype.mojos.CreateProjectFromArchetypeMojo.execu
> te(CreateProjectFromArchetypeMojo.java:202)
> at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPlugi
> nManager.java:451)
> at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(Defa
> ultLifecycleExecutor.java:558)
> ... 16 more
> [INFO] ------------------------------------------------------------------------
> [INFO] Total time: 7 seconds
> [INFO] Finished at: Wed May 28 17:49:39 EST 2008
> [INFO] Final Memory: 8M/14M
> [INFO] ------------------------------------------------------------------------
> C:\Documents and Settings\frank\My Documents\Development\Sandbox>mvn -v
> Maven version: 2.0.9
> Java version: 1.5.0_08
> OS name: "windows xp" version: "5.1" arch: "x86" Family: "windows"
> The mirrored settings from the settings.xml file are:
> <mirrors>
> <mirror>
> <id>public-snapshots</id>
> <name>public-snapshots</name>
> <url>http://maven.ho.bushlife.com.au:8081/nexus/content/groups/public-snapshots</url>
> </mirror>
> <mirror>
> <id>nexus-central</id>
> <url>http://maven.ho.bushlife.com.au:8081/nexus/content/groups/public</url>
> <mirrorOf>central</mirrorOf>
> </mirror>
> <mirror>
> <id>nexus-maven-repo</id>
> <url>http://maven.ho.bushlife.com.au:8081/nexus/content/groups/public</url>
> <mirrorOf>maven-repo</mirrorOf>
> </mirror>
> <mirror>
> <id>nexus-apache-m2-incubator</id>
> <url>http://maven.ho.bushlife.com.au:8081/nexus/content/groups/public</url>
> <mirrorOf>apache.m2.incubator</mirrorOf>
> </mirror>
> <mirror>
> <id>nexus-eclipse-repository</id>
> <url>http://maven.ho.bushlife.com.au:8081/nexus/content/groups/public</url>
> <mirrorOf>eclipse-repository</mirrorOf>
> </mirror>
> <mirror>
> <id>nexus-safehaus-repository</id>
> <url>http://maven.ho.bushlife.com.au:8081/nexus/content/groups/public</url>
> <mirrorOf>safehaus-repository</mirrorOf>
> </mirror>
> <mirror>
> <id>nexus-spring-ext</id>
> <url>http://maven.ho.bushlife.com.au:8081/nexus/content/groups/public</url>
> <mirrorOf>spring-ext</mirrorOf>
> </mirror>
> <mirror>
> <id>nexus-i21-s3-osgi-repo</id>
> <url>http://maven.ho.bushlife.com.au:8081/nexus/content/groups/public</url>
> <mirrorOf>i21-s3-osgi-repo</mirrorOf>
> </mirror>
> <mirror>
> <id>nexus-i21-s3-maven-repo</id>
> <url>http://maven.ho.bushlife.com.au:8081/nexus/content/groups/public</url>
> <mirrorOf>i21-s3-maven-repo</mirrorOf>
> </mirror>
> <mirror>
> <id>nexus-appfuse</id>
> <url>http://maven.ho.bushlife.com.au:8081/nexus/content/groups/public</url>
> <mirrorOf>appfuse</mirrorOf>
> </mirror>
> <mirror>
> <id>nexus-java.net</id>
> <url>http://maven.ho.bushlife.com.au:8081/nexus/content/groups/public</url>
> <mirrorOf>java.net</mirrorOf>
> </mirror>
> </mirrors>
> These mirrored settings work for other builds within eclipse, just not from the archetype generation, so the proxy repo is working well, but the null pointer exceptions make it difficult to figure out what the problem is.
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