docs: public static URL getURL(String confName, ClassLoader classLoader, Class cls) {
          URL url = null;
          
          // User home 
          String userHome = System.getProperty( "user.home" );
          if ( userHome.endsWith( "\\" ) || userHome.endsWith( "/" ) ) {
              url = getURLForFile( userHome + confName );
          } else {
              url = getURLForFile( userHome + "/" + confName );
          }
  
          // Working directory             
          if ( url == null ) {
              url = getURLForFile( confName );
          }
          
          // check Class folder
          if ( cls != null ) {
              URL urlResource = cls.getResource( confName );
              if (urlResource != null) {
                  url = urlResource;
              }
          }
  
          // check META-INF directories for all known ClassLoaders
          if ( url == null && classLoader != null ) {
              ClassLoader confClassLoader = classLoader;
              if ( confClassLoader != null ) {
                  url = confClassLoader.getResource( "META-INF/" + confName );
              }
          }
  
          if ( url == null ) {
              ClassLoader confClassLoader = ConfFileUtils.class.getClassLoader();
              if ( confClassLoader != null && confClassLoader != classLoader ) {
                  url = confClassLoader.getResource( "META-INF/" + confName );
              }
          }
          
          if ( url == null && cls != null ) {
              ClassLoader confClassLoader = cls.getClassLoader();
              if ( confClassLoader != null && confClassLoader != classLoader ) {
                  url = confClassLoader.getResource( "META-INF/" + confName );
              }
          }
  
          if ( url == null ) {
              ClassLoader confClassLoader = Thread.currentThread().getContextClassLoader();
              if ( confClassLoader != null && confClassLoader != classLoader ) {
                  url = confClassLoader.getResource( "META-INF/" + confName );
              }
          }
  
          if ( url == null ) {
              ClassLoader confClassLoader = ClassLoader.getSystemClassLoader();
              if ( confClassLoader != null && confClassLoader != classLoader ) {
                  url = confClassLoader.getResource( "META-INF/" + confName );
              }
          }
  
          return url;
      }