src/main/java/com/workplacesystems/utilsj/collections/decorators/SynchronizedSortedBidiMap.java
public static <K,V> SortedBidiMap<K,V> decorate(SortedBidiMap<K,V> map) {
        return new SynchronizedSortedBidiMap<K,V>(map);
    }
public static <K,V> SortedBidiMap<K,V> decorate(SortedBidiMap<K,V> map) {
        return new SynchronizedSortedBidiMap<K,V>(map);
    }
Factory method to create a synchronized map.

@param map  the map to decorate, must not be null
@throws IllegalArgumentException if map is null