POM snippet for plugin usage via pluginManagement is missing <plugins> container

<!-- To define the plugin version in your parent POM -->
<pluginManagement>
  <plugin>
    <groupId>org.codehaus.mojo<groupId>
    <artifactId>dummy-maven-plugin<artifactId>
    <version>1.0<version>
  </plugin>
  ...
</pluginManagement>

<!-- To define the plugin version in your parent POM -->
<pluginManagement>
  <plugins>
    <plugin>
      <groupId>org.codehaus.mojo<groupId>
      <artifactId>dummy-maven-plugin<artifactId>
      <version>1.0<version>
    </plugin>
    ...
  <plugins>
</pluginManagement>