[
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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