Map < K , V > function ( ) { return new HashMap < > ( ) ; }
returns a mutable hashmap that is empty . concode_field_sep PlaceHolder placeHolder concode_field_sep boolean isNullOrEmpty concode_elem_sep String format concode_elem_sep String format concode_elem_sep Object format concode_elem_sep ConcurrentMap<K,V> newConcurrentHashMap concode_elem_sep WeakHashMap<K,V> newWeakHashMap