maven-scm-providers/maven-scm-provider-svn/src/main/resources/META-INF/plexus/components.xml

<component-set>
  <components>
    <component>
      <role>org.apache.maven.scm.provider.ScmProvider</role>
      <role-hint>svn</role-hint>
      <implementation>org.apache.maven.scm.provider.svn.SvnScmProvider</implementation>
    </component>
  </components>
</component-set>