Where can I find lifecycleMappingMetadata schema?
<p>In eclipse:</p>

<p>To correct <em>"Plugin execution not covered by lifecycle configuration..."</em> problem, I choose to create my <code>lifecycle-mapping-metadata.xml</code> instead of pollute my pom with IDE concerns.</p>

<p>I manage to write this file with example, but I can't find a xsd or DTD for <code>lifecycle-mapping-metadata.xml</code>. Where is it?</p>