tests/org.eclipse.core.tests.runtime/Plugin_Testing/plugins.version.1/plugin.root/plugin.xml

<?xml version="1.0" encoding="UTF-8"?>
<plugin
  name="IBM Tooling Platform Core Tests"
  id="plugin.root"
  version="1.0.0"
  vendor-name="IBM">

  <requires>
    <import plugin="next.1"/>
    <import plugin="next.2"/>
    <import plugin="next.3"/>
  </requires>

</plugin>