code: private Map<String, VariantSet> getVariants(String defaultSkin, Set<String> skinNames, String defaultLocaleName,
  			Set<String> localeVariants) {
  
  		Map<String, VariantSet> skinVariants = new HashMap<>();
  		if (!skinNames.isEmpty()) {
  			skinVariants.put(JawrConstant.SKIN_VARIANT_TYPE,
  					new VariantSet(JawrConstant.SKIN_VARIANT_TYPE, defaultSkin, skinNames));
  		}
  		if (!localeVariants.isEmpty()) {
  
  			skinVariants.put(JawrConstant.LOCALE_VARIANT_TYPE,
  					new VariantSet(JawrConstant.LOCALE_VARIANT_TYPE, defaultLocaleName, localeVariants));
  		}
  
  		return skinVariants;
  	}
docs: Returns the skin variants
  
  @param defaultSkin
  the default skin
  @param skinNames
  the skin names
  @param defaultLocaleName
  the default locale name
  @param localeVariants
  the locale variants
  @return the skin variants