multi-module project generates invalid pom ?

[Joel COSTIGLIOLA (Services DPT SYSTEME D INFORMATION METIER)]

Hi there,

I have been reporting few weeks ago some VERY annoying warning like this
one : 
[WARNING] POM for 'sapiens:SapiensCommonsCore:pom:2.6.0:test' is
invalid. It will be ignored for artifact resolution. Reason: Failed to
validate POM for project sapiens:SapiensCommonsCore at Artifact
[sapiens:SapiensCommonsCore:pom:2.6.0:test] 

I haven't found any good explanation in maven mailing list archive but I
think I may have the reason of such annoying warnings. To explain it I
must give the context when it happens. 

I have a maven2 project called SapiensSpringCommon depending on
sapiens:SapiensCommonsCore test jar. SapiensCommonsCore is a module of
sapiens a maven2 multi-module project of mine.

When I install sapiens modules in my local repository everything runs
fine (no error, no warning).

Warnings arise when I compile SapiensSpringCommon which depends on a
child module of sapiens project (that is SapiensCommonsCore).

I firstly examined SapiensCommonsCore generated pom, and it seems ok (I
have successfully run "mvn validate" on it both in the project directory
and in my local repository).

Then I began modifying the SapiensCommonsCore generated pom (i.e.
SapiensCommonsCore-2.6.0.pom) of my local repository until warnings
disappears from SapiensSpringCommon compilation phase.
It appears that deleting parent section did it.

To conclude, it seems that multi-module produces invalid pom (or
validate phase is not clever enough to validate dependancies on artefact
of a multi-module project). 

What do you think ? maybe I just use badly maven ...
Is there a way to fix that ? 

Regards, 

Joel

 

FYI here's SapiensCommonsCore-2.6.0.pom version NOT producing warnings

<project>
        <modelVersion>4.0.0</modelVersion>
        <groupId>sapiens</groupId>
        <artifactId>SapiensCommonsCore</artifactId>
        <packaging>jar</packaging>
        <version>2.6.0</version>
        <name>Sapiens Core</name>
        <!-- build and dependencies section omitted -->
</project>

Here's SapiensCommonsCore-2.6.0.pom original version (PRODUCING
warnings)

<project>
        <parent>
                <groupId>sapiens</groupId>
                <artifactId>SocleSapiens</artifactId>
                <version>2.6.0</version>
        </parent>
        <modelVersion>4.0.0</modelVersion>
        <artifactId>SapiensCommonsCore</artifactId>
        <packaging>jar</packaging>
        <name>Sapiens Core</name>
        <dependencies>
                <dependency>
                        <groupId>commons-net</groupId>
                        <artifactId>commons-net</artifactId>
                </dependency>
        </dependencies>
        <!-- build section omitted -->
</project>

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