[SPARK-16535] pom.xml warning: "Definition of groupId is redundant, because it's inherited from the parent"

• Type: Improvement
• Status: Resolved
• Priority: Trivial
• Resolution: Fixed
• Fix Version/s: 2.1.0
• Component/s: Build
• Assignee: Xin Ren
• Reporter: Xin Ren
• Created: 13/Jul/16 23:21
• Updated: 19/Jul/16 11:00
• Resolved: 19/Jul/16 11:00

Description

When I scan through the pom.xml of sub projects, I found this warning as below and attached screenshot

Definition of groupId is redundant, because it's inherited from the parent

I've tried to remove some of the lines with groupId definition, and the build on my local machine is still ok.

<groupId>org.apache.spark</groupId>

As I just find now <maven.version>3.3.9</maven.version> is being used in Spark 2.x, and Maven-3 supports versionless parent elements: Maven 3 will remove the need to specify the parent version in sub modules. THIS is great (in Maven 3.1).

ref: http://stackoverflow.com/questions/3157240/maven-3-worth-it/3166762#3166762

Issue Links

• links to: [Github] Pull Request #14189 (keypointt)