Maven 3 doesn't like duplicate dependencies in hbase/pom.xml
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                 Key: HBASE-2982
                 URL: https://issues.apache.org/jira/browse/HBASE-2982
             Project: HBase
          Issue Type: Bug
          Components: build
         Environment: Using eclipse maven plugin that forces usage of embedded 
Maven 3 for dependency resolution.
            Reporter: James Kennedy


An install of the latest maven plugin resolves dependencies with Maven 3.
Maven 3 does not like the fact that several dependencies in the main pom.xml 
are duplicated.

Below is the error message which can be fixed by removing:

* The 2nd com.google.guava dependency from the "Test dependencies" section
* both org.slf4j dependencies from the "Avro dependencies" section 


9/10/10 11:15:50 AM PDT: Build errors for hbase; 
org.apache.maven.project.ProjectBuildingException: Some problems were 
encountered while processing the POMs:
[WARNING] 'version' contains an expression but should be a constant. @ 
org.apache.hbase:hbase:${hbase.version}, /opt/eclipse/troove/hbase/pom.xml
[ERROR] 'dependencies.dependency.(groupId:artifactId:type:classifier)' must be 
unique: org.slf4j:slf4j-log4j12:jar -> duplicate declaration of version 
${slf4j.version} @ org.apache.hbase:hbase:${hbase.version}, 
/opt/eclipse/troove/hbase/pom.xml
[ERROR] 'dependencies.dependency.(groupId:artifactId:type:classifier)' must be 
unique: org.slf4j:slf4j-api:jar -> duplicate declaration of version 
${slf4j.version} @ org.apache.hbase:hbase:${hbase.version}, 
/opt/eclipse/troove/hbase/pom.xml
[ERROR] 'dependencies.dependency.(groupId:artifactId:type:classifier)' must be 
unique: com.google.guava:guava:jar -> duplicate declaration of version 
${guava.version} @ org.apache.hbase:hbase:${hbase.version}, 
/opt/eclipse/troove/hbase/pom.xml
[WARNING] 'build.plugins.plugin.version' is missing for 
org.codehaus.mojo:build-helper-maven-plugin @ 
org.apache.hbase:hbase:0.89-SNAPSHOT-withHLogSplit, 
/opt/eclipse/troove/hbase/pom.xml


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