Method putAllImpl

lib/java/util/HashMap.java:622–630

(Map<? extends K, ? extends V> map)

    }

    private void putAllImpl(Map<? extends K, ? extends V> map) {
        int capacity = elementCount + map.size();
        if (capacity > threshold) {
            rehash(capacity);
        }
        for (Map.Entry<? extends K, ? extends V> entry : map.entrySet()) {
            putImpl(entry.getKey(), entry.getValue());
        }
    }

    void rehash(int capacity) {
        int length = calculateCapacity((capacity == 0 ? 1 : capacity << 1));