code: @Pure
  	public static URL getResource(Class<?> classname, String path) {
  		if (classname == null) {
  			return null;
  		}
  		URL u = getResource(classname.getClassLoader(), classname.getPackage(), path);
  		if (u == null) {
  			u = getResource(classname.getClassLoader(), path);
  		}
  		return u;
  	}
docs: Replies the URL of a resource.
  
  <p>You may use Unix-like syntax to write the resource path, ie.
  you may use slashes to separate filenames.
  
  <p>The name of {@code classname} is translated into a resource
  path (by remove the name of the class and replacing the dots by slashes) and the given path
  is append to. For example, the two following codes are equivalent:<pre><code>
  Resources.getResources(Resources.class, "/a/b/c/d.png");
  Resources.getResources("org/arakhne/vmutil/a/b/c/d.png");
  </code></pre>
  
  <p>The class loader of the given class is used. If it is <code>null</code>,
  the class loader replied by {@link ClassLoaderFinder} is used.
  If it is also <code>null</code>, the class loader of this Resources
  class is used.
  
  @param classname is located in the package in which the resource should be also located.
  @param path is the absolute path of the resource.
  @return the url of the resource or <code>null</code> if the resource was
  not found in class paths.