public V getQuietly(Object key) {
        final Node node = data.get(key);
        return (node == null) ? null : node.getValue();
    }
public V getQuietly ( Object key ) { final Node node = data . get ( key ) ; return ( node == null ) ? null : node . getValue ( ) ; }
Returns the value to which the specified key is mapped, or {@code null}
if this map contains no mapping for the key. This method differs from
{@link #get(Object)} in that it does not record the operation with the
page replacement policy.

@param key the key whose associated value is to be returned
@return the value to which the specified key is mapped, or {@code null}
if this map contains no mapping for the key
@throws NullPointerException if the specified key is null