code: private static Object loadUI(final String key) {
  		String classname = key.trim();
  
  		try {
  			Class<?> clas = Class.forName(classname);
  
  			if (WComponent.class.isAssignableFrom(clas)) {
  				Object instance = clas.newInstance();
  				LOG.debug("WComponent successfully loaded with class name \"" + classname + "\".");
  				return instance;
  			} else {
  				LOG.error("The resource with the name \"" + classname + "\" is not a WComponent.");
  			}
  		} catch (Exception ex) {
  			LOG.error("Unable to load a WComponent using the resource name \"" + classname + "\"",
  					ex);
  		}
  
  		return Boolean.FALSE;
  	}
docs: Attemps to load a ui using the key as a class name.
  
  @param key the registration key
  @return A WComponent if one could be loaded from the classpath, else it returns Boolean.FALSE.