tests/org.eclipse.core.tests.runtime/Plugin_Testing/plugins.version.2/b_1.2.0/plugin.xml

<?xml version="1.0" encoding="UTF-8"?>
<plugin
  name="Test Plugin"
  id="b"
  version="1.2.0"
  vendor-name="IBM">

  <requires>
    <import plugin="c"/>
  </requires>

</plugin>