Returns an empty map (immutable). This map is serializable.

This example illustrates the type-safe way to obtain an empty map:

     Map<String, Date> s = Collections.emptyMap();
 

Parameters:

<K>		the class of the map keys
<V>		the class of the map values

Returns:  an empty map

See also:
EMPTY_MAP

Since:  1.5

@implNote Implementations of this method need not create a separate Map object for each call. Using this method is likely to have comparable cost to using the like-named field. (Unlike this method, the field does not provide type safety.)