[HTRACE-242] Explicitly specify the version of all Maven plugins to fix pom.xml WARNINGS

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.2.0
• Fix Version/s: 4.0.1
• Component/s: build
• Target Version/s: 4.0.1
• Assignee: Lewis John McGibbney
• Reporter: Lewis John McGibbney
• Created: 08/Sep/15 23:54
• Updated: 14/Oct/15 00:52
• Resolved: 09/Sep/15 01:46

Description

Our CI builds on Jekins highlight the following

[WARNING] 
[WARNING] Some problems were encountered while building the effective model for org.apache.htrace:htrace-webapp:war:4.0.0-incubating-SNAPSHOT
[WARNING] 'build.plugins.plugin.version' for org.apache.maven.plugins:maven-war-plugin is missing. @ line 31, column 15
[WARNING] 
[WARNING] Some problems were encountered while building the effective model for org.apache.htrace:htrace-zipkin:jar:4.0.0-incubating-SNAPSHOT
[WARNING] 'dependencies.dependency.(groupId:artifactId:type:classifier)' must be unique: org.slf4j:slf4j-api:jar -> version 1.7.7 vs ${slf4j.version} @ line 151, column 17
[WARNING] 
[WARNING] Some problems were encountered while building the effective model for org.apache.htrace:htrace-htraced:jar:4.0.0-incubating-SNAPSHOT
[WARNING] 'build.plugins.plugin.(groupId:artifactId)' must be unique but found duplicate declaration of plugin org.apache.maven.plugins:maven-assembly-plugin @ line 64, column 15
[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] 

We should explicitly specify the version of all Maven plugins to fix these pom.xml WARNINGS.