Method put

vm/JavaAPI/src/java/util/LinkedHashMap.java:366–375

Maps the specified key to the specified value. @param key the key. @param value the value. @return the value of any previous mapping with the specified key or null if there was no such mapping.

(K key, V value)

     *         {@code null} if there was no such mapping.
     */
    @Override
    public V put(K key, V value) {
        V result = putImpl(key, value);

        if (removeEldestEntry(head)) {
            remove(head.key);
        }

        return result;
    }

    V putImpl(K key, V value) {
        LinkedHashMapEntry<K, V> m;