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From "Benjamin Bentmann (JIRA)" <j...@codehaus.org>
Subject [jira] Created: (MNG-3814) Reactor builds fail due to erroneous cycle in project sorting which does not consider versions
Date Sun, 02 Nov 2008 21:44:51 GMT
Reactor builds fail due to erroneous cycle in project sorting which does not consider versions
----------------------------------------------------------------------------------------------

                 Key: MNG-3814
                 URL: http://jira.codehaus.org/browse/MNG-3814
             Project: Maven 2
          Issue Type: Bug
          Components: Reactor and workspace
    Affects Versions: 2.1.0-M1, 2.0.9, 3.0-alpha-1
            Reporter: Benjamin Bentmann


Just to officially track the reason why the parent POM {{maven-plugins}} currently excludes
the maven-project-info-reports-plugin from the reactor:
{noformat}
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[ERROR] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] The projects in the reactor contain a cyclic reference:
Edge between
  'Vertex{label='org.apache.maven.plugins:maven-remote-resources-plugin'}'
and
  'Vertex{label='org.apache.maven.plugins:maven-project-info-reports-plugin'}'
introduces to cycle in the graph
  org.apache.maven.plugins:maven-project-info-reports-plugin -->
  org.apache.maven.plugins:maven-remote-resources-plugin -->
  org.apache.maven.plugins:maven-project-info-reports-plugin
{noformat}
It appears the {{ProjectSorter}} does not take versions into account, i.e. there is no cycle
in a multi-module scenario like this:
{noformat}
parent:1
- plugin-a:2.0 which uses plugin-b:1.0
- plugin-b:2.0 which uses plugin-a:1.0
{noformat}

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