[HADOOP-13816] Ambiguous plugin version warning from maven build.

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.0.0-alpha2
• Fix Version/s: 3.0.0-alpha2, 2.10.3
• Target Version/s: 3.0.0-alpha2
• Hadoop Flags: Reviewed
• Assignee: Kai
• Reporter: Kai
• Created: 14/Nov/16 11:35
• Updated: 06/Dec/23 14:44
• Resolved: 28/Nov/16 04:11

Description

When we try to build Hadoop with maven, the below warning is shown.

[WARNING]
[WARNING] Some problems were encountered while building the effective model for org.apache.hadoop:hadoop-rumen:jar:3.0.0-alpha2-SNAPSHOT
[WARNING] 'dependencies.dependency.(groupId:artifactId:type:classifier)' must be unique: com.fasterxml.jackson.core:jackson-databind:jar -> duplicate declaration of version (?) @ line 102, column 17
[WARNING]
[WARNING] Some problems were encountered while building the effective model for org.apache.hadoop:hadoop-build-tools:jar:3.0.0-alpha2-SNAPSHOT
[WARNING] 'build.plugins.plugin.version' for org.apache.maven.plugins:maven-remote-resources-plugin is missing. @ org.apache.hadoop:hadoop-build-tools:[unknown-version], /Users/sasakikai/dev/hadoop/hadoop-build-tools/pom.xml, line 80, column 15
[WARNING] 'build.plugins.plugin.version' for org.apache.maven.plugins:maven-resources-plugin is missing. @ org.apache.hadoop:hadoop-build-tools:[unknown-version], /Users/sasakikai/dev/hadoop/hadoop-build-tools/pom.xml, line 54, column 15

It is required to

• remove duplicated definition jackson-databind
• specify the version maven-resource-plugin and maven-remote-resources-plugin.