code: @Override
      public void addAlias(Object key, Object[] aliasArray) {
          final String methodName = "addAlias(key, aliasArray)";
          functionNotAvailable(methodName);
      }
docs: Adds one or more aliases for the given key in the cache's mapping table. If the alias is already
  associated with another key, it will be changed to associate with the new key.
  
  @param key the key assoicated with alias
  @param aliasArray the aliases to use for lookups
  @throws IllegalArgumentException if the key is not in the cache's mapping table.