versions-maven-plugin:display-plugin-updates shows incorrect unspecified versions #1238
Description
As requested in apache/maven-xinclude-extension#18, I'm creating the issue in the versions-maven-plugin repo.
When working with pluginManagement to set versions for plugins, the versions-maven-plugin:display-plugin-updates goal will show warnings that versions of plugins are not specified, even though they are specified in pluginManagement.
To reproduce:
git clone https://gitlab.com/philippedn/jptb.git
cd jptb
./mvnw versions:display-plugin-updates
This will output:
...
[INFO] --- versions:2.18.0:display-plugin-updates (default-cli) @ jptb ---
[INFO]
[INFO] All plugins with a version specified are using the latest versions.
[INFO]
[WARNING] The following plugins do not have their version specified:
[WARNING] maven-clean-plugin ...................... (from super-pom) 3.4.0
[WARNING] maven-compiler-plugin .................. (from super-pom) 3.13.0
[WARNING] maven-dependency-plugin ................. (from super-pom) 3.8.1
[WARNING] maven-deploy-plugin ..................... (from super-pom) 3.1.3
[WARNING] maven-enforcer-plugin ................... (from super-pom) 3.5.0
[WARNING] maven-install-plugin .................... (from super-pom) 3.1.3
[WARNING] maven-jar-plugin ........................ (from super-pom) 3.4.2
[WARNING] maven-resources-plugin .................. (from super-pom) 3.3.1
[WARNING] maven-surefire-plugin ................... (from super-pom) 3.5.2
[WARNING] org.codehaus.mojo:exec-maven-plugin ..... (from super-pom) 3.5.0
[WARNING] org.codehaus.mojo:versions-maven-plugin (from super-pom) 2.18.0
[INFO]
[INFO] Project requires minimum Maven version for build of: 3.6.3
[INFO] Plugins require minimum Maven version of: 3.6.3
[INFO] Note: the super-pom from Maven 4.0.0-rc-2 defines some of the plugin
[INFO] versions and may be influencing the plugins required minimum Maven
[INFO] version.
[INFO]
[INFO] No plugins require a newer version of Maven than specified by the pom.
...
The warnings are for versions that are all set in pluginManagement.