Github user jendap commented on a diff in the pull request:
https://github.com/apache/spark/pull/7375#discussion_r34496608
--- Diff: pom.xml ---
@@ -1406,6 +1382,59 @@
<artifactId>maven-deploy-plugin</artifactId>
<version>2.8.2</version>
</plugin>
+
+ <!-- This plugin's configuration is used to store Eclipse m2e settings
only. -->
+ <!-- It has no influence on the Maven build itself. -->
+ <plugin>
+ <groupId>org.eclipse.m2e</groupId>
--- End diff --
It is ide specific. Eclipse / scala-ide show an error by default when it
see a plugin which it does not understand. Adding this to a pom file is, imho,
better than adding a readme of how to setup an ide.
In this case it is saying "hey ide, don't worry about the custom
configuration of maven-jar-plugin" because nobody use ide to generate the jar
anyway.
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