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From "Xavier Hanin (JIRA)" <j...@apache.org>
Subject [jira] Assigned: (IVY-831) NPE in AbstractResolver.exists() if a resource cannot be found
Date Tue, 10 Jun 2008 10:32:44 GMT

     [ https://issues.apache.org/jira/browse/IVY-831?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Xavier Hanin reassigned IVY-831:
--------------------------------

    Assignee: Xavier Hanin

> NPE in AbstractResolver.exists() if a resource cannot be found
> --------------------------------------------------------------
>
>                 Key: IVY-831
>                 URL: https://issues.apache.org/jira/browse/IVY-831
>             Project: Ivy
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 2.0-RC1
>            Reporter: Erik-Berndt Scheper
>            Assignee: Xavier Hanin
>             Fix For: 2.0-RC1
>
>
> A NullPointerException occurs inAbstractResolver.exists(AbstractResolver.java:196) if
a host cannot be found
> Reproducible with "ant coverage-report" behind a firewall with proxy install disabled.
> Resulting stack trace:
> {noformat}
> java.lang.NullPointerException
> at org.apache.ivy.plugins.resolver.AbstractResolver.exists(AbstractResolver.java:196)
> at org.apache.ivy.plugins.parser.m2.PomModuleDescriptorParser.addSourcesAndJavadocArtifactsIfPresent(PomModuleDescriptorParser.java:267)
> at org.apache.ivy.plugins.parser.m2.PomModuleDescriptorParser.parseDescriptor(PomModuleDescriptorParser.java:246)
> at org.apache.ivy.plugins.parser.m2.PomModuleDescriptorParser.parseDescriptor(PomModuleDescriptorParser.java:104)
> at org.apache.ivy.plugins.parser.m2.PomModuleDescriptorParserTest.testSimple(PomModuleDescriptorParserTest.java:89)
> {noformat}
> Offending code:
> {noformat}
>     /**
>      * Default implementation actually download the artifact Subclasses should overwrite
this to
>      * avoid the download
>      */
>     public boolean exists(Artifact artifact) {
>         DownloadReport dr = download(new Artifact[] {artifact}, new DownloadOptions());
>         ArtifactDownloadReport adr = dr.getArtifactReport(artifact);
>         return adr.getDownloadStatus() != DownloadStatus.FAILED;
>     }
> {noformat}
> If the DownloadReport instance is null, a NPE occurs

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