[jira] Closed: (MNG-2909) zero length files can be created for metadata

["Jason van Zyl (JIRA)" <ji...@codehaus.org>]

     [ http://jira.codehaus.org/browse/MNG-2909?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jason van Zyl closed MNG-2909.
------------------------------

    Resolution: Fixed

> zero length files can be created for metadata
> ---------------------------------------------
>
>                 Key: MNG-2909
>                 URL: http://jira.codehaus.org/browse/MNG-2909
>             Project: Maven 2
>          Issue Type: Bug
>          Components: Artifacts and Repositories
>    Affects Versions: 2.0.x, 2.1
>            Reporter: Brett Porter
>            Assignee: Jason van Zyl
>             Fix For: 2.1-alpha-1
>
>
> I was getting build fails because of this:
> Caused by: java.io.EOFException: input contained no data
>         at org.codehaus.plexus.util.xml.pull.MXParser.fillBuf(MXParser.java:2979)
>         at org.codehaus.plexus.util.xml.pull.MXParser.more(MXParser.java:3022)
>         at org.codehaus.plexus.util.xml.pull.MXParser.parseProlog(MXParser.java:1407)
>         at org.codehaus.plexus.util.xml.pull.MXParser.nextImpl(MXParser.java:1392)
>         at org.codehaus.plexus.util.xml.pull.MXParser.next(MXParser.java:1090)
>         at org.apache.maven.artifact.repository.metadata.io.xpp3.MetadataXpp3Reader.read(MetadataXpp3Reader.java:863)
>         at org.apache.maven.artifact.repository.metadata.AbstractRepositoryMetadata.updateRepositoryMetadata(AbstractRepositoryMetadata.java:98)
>         at org.apache.maven.artifact.repository.metadata.AbstractRepositoryMetadata.storeInLocalRepository(AbstractRepositoryMetadata.java:68)
>         ... 21 more
> It happened after cancelling a previous build, presumably mid-update of the metadata.
> Probably 2 things to do here:
> a) This error should be handled when reading back the metadata to merge, and treated as a non-existent file instead of an error.
> b) use an atomic rename instead of overwriting an existing file to prevent dataloss in the even of a cancelled build

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