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From "Jason van Zyl (JIRA)" <j...@codehaus.org>
Subject [jira] Updated: (MNG-3918) NPE in CLIReportingUtils
Date Thu, 29 Jan 2009 20:00:23 GMT

     [ http://jira.codehaus.org/browse/MNG-3918?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jason van Zyl updated MNG-3918:
-------------------------------

    Fix Version/s:     (was: 3.0-alpha-3)
                   3.0-alpha-4

> NPE in CLIReportingUtils
> ------------------------
>
>                 Key: MNG-3918
>                 URL: http://jira.codehaus.org/browse/MNG-3918
>             Project: Maven 2
>          Issue Type: Bug
>          Components: Errors
>    Affects Versions: 3.0-alpha-1
>            Reporter: Benjamin Bentmann
>            Priority: Minor
>             Fix For: 3.0-alpha-4
>
>         Attachments: pom.xml
>
>
> Running "mvn validate" on the attached POM delivers:
> {noformat}
> java.lang.NullPointerException
>         at org.apache.maven.cli.CLIReportingUtils.handleLifecycleExecutionException(CLIReportingUtils.java:270)
>         at org.apache.maven.cli.CLIReportingUtils.buildErrorMessage(CLIReportingUtils.java:217)
>         at org.apache.maven.cli.CLIReportingUtils.showError(CLIReportingUtils.java:162)
>         at org.apache.maven.cli.CLIReportingUtils.showError(CLIReportingUtils.java:138)
>         at org.apache.maven.cli.CLIReportingUtils.logResult(CLIReportingUtils.java:80)
>         at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:171)
>         at org.apache.maven.cli.MavenCli.main(MavenCli.java:63)
>         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.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
>         at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
>         at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:408)
>         at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:351)
>         at org.codehaus.classworlds.Launcher.main(Launcher.java:31)
> {noformat}
> While the POM is indeed invalid, the original error message doesn't make it to the user.
> The {{LifecycleExecutionException}} to report has no project instance. In this particular
case, the exception is created in {{DefaultLifecycleExecutor}} by wrapping a {{LifecycleSpecificationException}}.
This raises the question whether the class {{LifecycleException}} should provide a field to
carry a {{MavenProject}} instance, which could then be propagated to the wrapping exception.

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