maven-dependency-plugin [MDEP-82] - resolve plugin dependencies

Resolve plugins with Maven 3.6.3 does currently (master a0ac6fedf87dec9ec3ca93dd83d28ef2828cb544) not resolve explicit plugin dependencies. With the POM below the artifact surefire-junit47 will not be downloaded. After the change, it is downloaded as expected.

This especially affects dependency:go-offline and its usage inside CI pipelines as stated in MDEP-82.

I am not sure, how to test that properly using the current state of testing inside that plugin and would appreciate help in doing that. I would like to execute the Resolve-Plugin Mojo but did not get that to work.

I am not sure, if this is the perfect solution, but it is borrowed from an other working maven plugin: https://github.com/qaware/go-offline-maven-plugin/blob/baa674897d3527a32bc781a54cff97dc0f1b4e4e/src/main/java/de/qaware/maven/plugin/offline/DependencyDownloader.java#L247.

<?xml version="1.0" encoding="UTF-8"?>

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <groupId>test</groupId>
  <artifactId>test</artifactId>
  <version>0.1-SNAPSHOT</version>

  <name>test</name>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.7</maven.compiler.source>
    <maven.compiler.target>1.7</maven.compiler.target>
  </properties>

  <build>
    <pluginManagement>
      <plugins>
        <plugin>
          <artifactId>maven-compiler-plugin</artifactId>
          <version>3.8.1</version>
        </plugin>
        <plugin>
          <artifactId>maven-source-plugin</artifactId>
          <version>3.2.1</version>
        </plugin>
        <plugin>
          <artifactId>maven-jar-plugin</artifactId>
          <version>3.2.0</version>
        </plugin>
        <plugin>
          <artifactId>maven-assembly-plugin</artifactId>
          <version>3.3.0</version>
        </plugin>
        <plugin>
          <artifactId>maven-release-plugin</artifactId>
          <version>2.5.3</version>
        </plugin>
        <plugin>
          <artifactId>maven-deploy-plugin</artifactId>
          <version>3.0.0-M1</version>
        </plugin>
        <plugin>
          <artifactId>maven-help-plugin</artifactId>
          <version>3.2.0</version>
        </plugin>
        <plugin>
          <artifactId>maven-javadoc-plugin</artifactId>
          <version>3.2.0</version>
          <configuration>
            <quiet>true</quiet>
          </configuration>
        </plugin>
        <plugin>
          <artifactId>maven-resources-plugin</artifactId>
          <version>3.1.0</version>
        </plugin>
        <plugin>
          <artifactId>maven-surefire-plugin</artifactId>
          <version>3.0.0-M5</version>
        </plugin>
        <plugin>
          <artifactId>maven-war-plugin</artifactId>
          <version>3.3.1</version>
        </plugin>
        <plugin>
          <artifactId>maven-install-plugin</artifactId>
          <version>3.0.0-M1</version>
        </plugin>
        <plugin>
          <artifactId>maven-dependency-plugin</artifactId>
          <version>3.1.4-SNAPSHOT</version>
        </plugin>
        <plugin>
          <artifactId>maven-clean-plugin</artifactId>
          <version>3.1.0</version>
        </plugin>
        <plugin>
          <artifactId>maven-site-plugin</artifactId>
          <version>3.9.0</version>
        </plugin>
      </plugins>
    </pluginManagement>
    <plugins>
      <plugin>
        <artifactId>maven-surefire-plugin</artifactId>
        <dependencies>
          <dependency>
            <groupId>org.apache.maven.surefire</groupId>
            <artifactId>surefire-junit47</artifactId>
            <version>3.0.0-M5</version>
          </dependency>
        </dependencies>
      </plugin>
    </plugins>
  </build>
</project>

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