src/main/java/com/workplacesystems/utilsj/collections/TransactionalHashMap.java
@Override
    public void clear()
    {
        modCount++;
        Entry<K,V> tab[] = table;
        for (int i = 0; i < tab.length; i++)
            tab[i] = null;
        size = 0;
    }
@Override
    public void clear()
    {
        modCount++;
        Entry<K,V> tab[] = table;
        for (int i = 0; i < tab.length; i++)
            tab[i] = null;
        size = 0;
    }
Removes all mappings from this map.