Trie with the word-value mapping added.Enum.Opt instance out of a Collection.absent value.TrieVisitor that stores all visited words and values in a map.t, even if the declared throws clause doesn't permit it.Trie.Trie.Trie to visit all it's words and their associated values.TrieVisitor.visit(java.lang.String, T) for each word-value pair in this Trie.