[GitHub] [hadoop-ozone] elek opened a new pull request #18: HDDS-2298. Fix maven warning about duplicated metrics-core jar

[GitBox <gi...@apache.org>]

elek opened a new pull request #18: HDDS-2298. Fix maven warning about duplicated metrics-core jar
URL: https://github.com/apache/hadoop-ozone/pull/18
 
 
   ## What changes were proposed in this pull request?
   
   Maven build of Ozone is starting with a warning:
   
   ```
   [WARNING] 
   [WARNING] Some problems were encountered while building the effective model for org.apache.hadoop:hadoop-ozone-tools:jar:0.5.0-SNAPSHOT
   [WARNING] 'dependencies.dependency.(groupId:artifactId:type:classifier)' must be unique: io.dropwizard.metrics:metrics-core:jar -> version 3.2.4 vs (?) @ line 94, column 17
   [WARNING] 
   [WARNING] It is highly recommended to fix these problems because they threaten the stability of your build.
   [WARNING] 
   [WARNING] For this reason, future Maven versions might no longer support building such malformed projects.
   [WARNING] 
    ```
   
   It's better to avoid it.
   
   ## What is the link to the Apache JIRA
   
   https://issues.apache.org/jira/browse/HDDS-2298
   
   ## How this patch can be tested?
   
   ```
   mvn clean install | head -n 20
   ```
   
   Without patch: there are warnings.

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