if ( releaseDescriptor.isAddSchema() )
{
Namespace pomNamespace = Namespace.getNamespace( "", "http://maven.apache.org/POM/" + modelVersion );
rootElement.setNamespace( pomNamespace );
Namespace xsiNamespace = Namespace.getNamespace( "xsi", "http://www.w3.org/2001/XMLSchema-instance" );
rootElement.addNamespaceDeclaration( xsiNamespace );
if ( rootElement.getAttribute( "schemaLocation", xsiNamespace ) == null )
{
rootElement.setAttribute( "schemaLocation", "http://maven.apache.org/POM/" + modelVersion
+ " http://maven.apache.org/maven-v" + modelVersion.replace( '.', '_' ) + ".xsd", xsiNamespace );