GWT Collection: Hashtable Hashmap Vector etc.

A lot of classes are not supported in GWT; which results in errors such as:

No source code is available for type<K,V>; did you forget to inherit a required module?

If you want to use some of the regular java classes you should first consult (note in many cases only subset of methods is implement) :

A good replacement for the Map, Hashtable etc. in gwt is:

TreeMap TreeMap(), TreeMap(Comparator), TreeMap(Map), TreeMap(SortedMap), clear(), comparator(), containsKey(Object), entrySet(), firstKey(), get(Object), headMap(K), lastKey(), put(K, V), remove(Object), size(), subMap(K, K), tailMap(K)



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