maven2.1 fails with cyclic dependency in case of extension/dependency for
report-plugin to reactor-project
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Key: MNG-4184
URL: http://jira.codehaus.org/browse/MNG-4184
Project: Maven 2
Issue Type: Bug
Components: Dependencies
Affects Versions: 2.1.0
Reporter: Jörg Hohwiller
In my project (https://m-m-m.svn.sourceforge.net/svnroot/m-m-m/trunk/)
I am doing exactly what maven-checkstyle-plugin suggests as best practice for
multi-module-builds:
http://maven.apache.org/plugins/maven-checkstyle-plugin/examples/multi-module-config.html
Howerver when I upgrade to maven 2.1 my build does not work anymore, while
maven 2.0.10 works fine:
[INFO] The projects in the reactor contain a cyclic reference: Edge between
'Vertex{label='net.sf.m-
m-m:mmm-setup'}' and 'Vertex{label='net.sf.m-m-m:mmm-setup'}' introduces to
cycle in the graph net.s
f.m-m-m:mmm-setup --> net.sf.m-m-m:mmm-setup
Indeed the module mmm-setup inherits from the toplevel-pom and therefore has a
maven-checkstyle-plugin
with a dependency on itself. However this worked with maven 2.0.x and if this
is NOT going to be
"fixed" in 2.1, you need to supply an acceptable workaround and update
instructions such as
the one linked above. Please also note that such config-moudles
(net.sf.m-m-m:mmm-setup or
com.example.whizbang:build-tools) should typically be available in IDE and
other modules might
depend on them so they have to be part of the reactor for eclipse:eclipse.
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