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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