transitive dependency exclusion fails when classifier specified on a subproject 
and building the root project.
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                 Key: MNG-4939
                 URL: http://jira.codehaus.org/browse/MNG-4939
             Project: Maven 2 & 3
          Issue Type: Bug
          Components: Dependencies
    Affects Versions: 2.2.1
         Environment: Window XP, Java 6 u10
            Reporter: Sunil Kumar Dhage
            Priority: Blocker


My issue is  related to MNG-3555.

I have a root pom which has multiple child projects and poms. 
For simplicity let us consider project Subproject1,Subproject2.

Subproject1 has a distribution.xml which will install a classifier based jar 
(Subproject1-1.0-distribution.jar)along with the actual Subproject1-1.0.jar
The Subproject1-1.0-distribution.jar contains only those classes which are used 
in Subproject2. And its size is something around 10KB and 
the Subproject1-1.0.jar  contains all the transitive dependencies and the 
complete functionality and the size is few MB.

Now I want to have the Subproject1-1.0-distribution.jar as a dependency in 
Subproject2 and I am excluding all the third party jars.

After going through closing comments of MNG-3555, I could understand that 
I should exclude for the main dependency as well. 

1.How can we mention that particular exclusion is for main dependency and 
particular exclusion is for classifier based dependency?

2. Do I need to create two dependencies one for Subproject1 and other with 
classifier?

Here my Subproject2 is in need of only Subproject1-1.0-distribution.jar only.  
Why should I create one more dependency and exclude the jars.

PS: 1. Interesting point is if I am building Subproject2 alone then the 
excluded  jars are getting excluded
But when I build the root, then my Subproject2 will not be able to exclude the 
excluded jars.
2. If my Subproject2 has a similar dependency on 
SomeOther-1.0-distribution.jar, which is not a sibling, then either I build 
Subproject or I build root, all the excluded jars are getting excluded.


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