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From "Scott Carey (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-3414) maven artifacts (0.20.205.0) has incorrect dependencies, leading to infinite loop in MiniMRCluster in unit tests
Date Wed, 16 Nov 2011 20:03:51 GMT
maven artifacts (0.20.205.0) has incorrect dependencies, leading to infinite loop in MiniMRCluster
in unit tests
----------------------------------------------------------------------------------------------------------------

                 Key: MAPREDUCE-3414
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3414
             Project: Hadoop Map/Reduce
          Issue Type: Bug
    Affects Versions: 0.20.205.0
            Reporter: Scott Carey


(hadoop 0.20.205.0, perhaps more) 
A simple unit test using MiniMRCluster will:

* Crash if jackson-jaxrs is not in scope
* Hang forever if jackson-jaxrs is in scope but jersey-core is not

Hadoop does not declare eitehr of these required dependencies in hadoop-core or hadoop-test
poms.   hadoop-test should at minimum include both of these declared in its pom.

The reproducible case is here:
https://github.com/scottcarey/hadoop_dependency_bug

"mvn test" works fine as is, but if you comment out the explicit dependencies in the pom you'll
get the errors above.
Comment out jersey-core it will spin forever.
Comment out jackson-jaxrs and it will crash.

Both cases demonstrate that the dependency in the hadoop-test (and implicit hadoop-core) are
not specified correctly in the pom.

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