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https://jira.codehaus.org/browse/MNG-5087?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jason van Zyl updated MNG-5087:
-------------------------------
Assignee: Jason van Zyl
> Maven 3 dependency resolution fails until maven-metadata-local.xml files
> (created by maven-invoker-plugin) are deleted
> ----------------------------------------------------------------------------------------------------------------------
>
> Key: MNG-5087
> URL: https://jira.codehaus.org/browse/MNG-5087
> Project: Maven 2 & 3
> Issue Type: Bug
> Components: Dependencies, Integration Tests
> Affects Versions: 3.0.2, 3.0.3
> Environment: Mac OS X 10.6.x, Java 1.6.0_24
> Reporter: Chas Emerick
> Assignee: Jason van Zyl
>
> In one of my Maven projects, dependency resolution will succeed once, then
> fail for later build attempts:
> {code}
> [WARNING] The POM for commons-logging:commons-logging:jar:1.1.1 is missing,
> no dependency information available
> [WARNING] The POM for commons-httpclient:commons-httpclient:jar:3.1 is
> missing, no dependency information available
> [WARNING] The POM for javax.mail:mail:jar:1.4.4 is missing, no dependency
> information available
> {code}
> ...and so on, until I delete the {{maven-metadata-local.xml}} files
> corresponding to the failing artifacts (e.g.
> {{~/.m2/repository/commons-logging/commons-logging/maven-metadata-local.xml}}),
> which appear to be created by maven-invoker-plugin:install. After those
> files are deleted, the next {{mvn}} invocation proceeds properly; the
> metadata files are restored by that invocation (presumably as part of the
> process of checking my upstream repositories/mirrors for updated artifacts),
> and I am again presented with the above errors until I again delete the
> metadata files.
> This is repeatable, even after starting with a completely fresh local
> repository. Note that Maven 2.2.1 does *NOT* exhibit this problem.
> FYI, I'm not using an integration-testing-only local repo
> [http://maven.apache.org/plugins/maven-invoker-plugin/install-mojo.html#localRepositoryPath|as
> described here], simply because doing so causes the re-downloading of all
> transitive dependencies
> ([http://maven.apache.org/plugins/maven-invoker-plugin/examples/fast-use.html|unless
> you want to maintain an integration-specific settings.xml file!!!]). I've
> used the invoker plugin with a variety of other projects in this way with
> good results ([http://github.com/clojure/tools.nrepl|example]) -- certainly
> never encountering a borked local repository in the process like this.
> Here's an affected project:
> [https://github.com/cemerick/rummage/tree/1.3.0-compat|the 1.3.0-compat
> branch of rummage]. To reproduce, just clone that repo, checkout
> {{1.3.0-compat}}, and:
> {code}
> > mvn clean test
> # no error -- can run this and other builds that don't involve
> maven-invoker-plugin all day w/o problems
> > mvn clean integration-test
> # FAIL: "Could not resolve dependencies", with warnings as noted above
> > mvn clean test
> # FAIL: "Could not resolve dependencies", with warnings as noted above
> {code}
> Once the local repository is broken (by the generation of the
> {{maven-metadata-local.xml}} files, AFAICT), no builds will get past the
> dependency resolution stage.
> Running mvn -X reveals lines like this for each artifact that is later
> apparently not found:
> {code}
> [DEBUG] Verifying availability of
> /Users/chas/.m2/repository/javax/mail/mail/1.4.4/mail-1.4.4.jar from []
> {code}
> Of course,
> {{/Users/chas/.m2/repository/javax/mail/mail/1.4.4/mail-1.4.4.jar}} et al.
> does exist, as does
> {{/Users/chas/.m2/repository/javax/mail/mail/1.4.4/mail-1.4.4.pom}}.
> I'm assuming this is a bug in Maven 3's core dependency resolution mechanisms
> (as opposed to maven-invoker-plugin) since Maven 2.2.1 doesn't exhibit the
> behaviour.
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