code: public String getURL()
      {
          if( m_url == null )
          {
              m_url = "mvn:" + m_groupId + "/" + m_artifact + "/" + m_version + "/pom";
          }
          final StringBuilder url = new StringBuilder().append( SCHEMA ).append( SEPARATOR_SCHEME ).append( m_url );
          url.append( getOptions( this ) );
          return url.toString();
      }
docs: {@inheritDoc}